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<h3>
Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/387050d0e26a9e6466b31c9d8e4e4f6273c64c9e">387050d0</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-06-07T14:23:23Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Factor out 'getLibDir' / 'getBaseDir' into a new GHC.BaseDir ghc-boot module
ghc-pkg and ghc already both needed this. I figure it is better to
deduplicate, especially seeing that changes to one (FreeBSD CPP) didn't
make it to the other.
Additionally in !1090 I make ghc-pkg look up the settings file, which
makes it use the top dir a bit more widely. If that lands, any
difference in the way they find the top dir would be more noticable.
That change also means sharing more code between ghc and ghc-package
(namely the settings file parsing code), so I'd think it better to get
off the slipperly slope of duplicating code now.
</pre>
</li>
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<h4>4 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#0dbf0ff37c38cb6a955d609ea292c495d5978739">
compiler/main/SysTools/BaseDir.hs
</a>
</li>
<li class="file-stats">
<a href="#9164f19ba3fda42625076648cc79b5232b79f59c">
<span class="new-file">
+
libraries/ghc-boot/GHC/BaseDir.hs
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</a>
</li>
<li class="file-stats">
<a href="#0ebb2f2be655388ecccd3e7b71ac41cff1c7beba">
libraries/ghc-boot/ghc-boot.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#722ac70c2a4e1252d240d4434c386e4dd40e685e">
utils/ghc-pkg/Main.hs
</a>
</li>
</ul>
<h4>Changes:</h4>
<li id="0dbf0ff37c38cb6a955d609ea292c495d5978739">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/387050d0e26a9e6466b31c9d8e4e4f6273c64c9e#0dbf0ff37c38cb6a955d609ea292c495d5978739"><strong>compiler/main/SysTools/BaseDir.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -20,20 +20,17 @@ module SysTools.BaseDir</td>
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<pre style="margin: 0;"> <span id="LC20" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC21" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GhcPrelude</span></span>
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<pre style="margin: 0;"> <span id="LC22" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;">+<span id="LC23" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See note [Base Dir] for why some of this logic is shared with ghc-pkg.</span></span>
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<pre style="margin: 0;">+<span id="LC24" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.BaseDir</span></span>
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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC26" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Panic</span></span>
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<pre style="margin: 0;"> <span id="LC27" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC28" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">lookupEnv</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC29" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.FilePath</span></span>
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<pre style="margin: 0;"> <span id="LC30" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.List</span></span>
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<pre style="margin: 0;"> <span id="LC31" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC29" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- POSIX</span></span>
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<pre style="margin: 0;">-<span id="LC30" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">darwin_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">linux_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">freebsd_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC31" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">getExecutablePath</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC32" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;">-<span id="LC33" class="line" lang="haskell"></span>
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<td class="diff-line-num old_line" data-linenumber="34" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC32" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Windows</span></span>
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<pre style="margin: 0;"> <span id="LC33" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">mingw32_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC36" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">getExecutablePath</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC34" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Directory</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">doesDirectoryExist</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -125,40 +122,6 @@ findTopDir Nothing</td>
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<pre style="margin: 0;"> <span id="LC122" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">InstallationError</span> <span class="s" style="color: #d14;">"missing -B<dir> option"</span></span>
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<pre style="margin: 0;"> <span id="LC123" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">dir</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">dir</span></span>
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<pre style="margin: 0;"> <span id="LC124" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC128" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">String</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC129" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC130" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">mingw32_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC131" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC132" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- locate the "base dir" when given the path</span></span>
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<pre style="margin: 0;">-<span id="LC133" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- to the real ghc executable (as opposed to symlink)</span></span>
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<pre style="margin: 0;">-<span id="LC134" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- that is running this function.</span></span>
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<pre style="margin: 0;">-<span id="LC135" class="line" lang="haskell"><span class="n" style="color: #333;">rootDir</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">FilePath</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FilePath</span></span>
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<pre style="margin: 0;">-<span id="LC136" class="line" lang="haskell"><span class="n" style="color: #333;">rootDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">normalise</span></span>
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<pre style="margin: 0;">-<span id="LC137" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC138" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;"></></span> <span class="s" style="color: #d14;">"lib"</span><span class="p">)</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">rootDir</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getExecutablePath</span></span>
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<pre style="margin: 0;">-<span id="LC139" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">elif</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">darwin_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">linux_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">freebsd_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC140" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- on unix, this is a bit more confusing.</span></span>
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<pre style="margin: 0;">-<span id="LC141" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The layout right now is something like</span></span>
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<pre style="margin: 0;">-<span id="LC142" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC143" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /bin/ghc-X.Y.Z <- wrapper script (1)</span></span>
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<pre style="margin: 0;">-<span id="LC144" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /bin/ghc <- symlink to wrapper script (2)</span></span>
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<pre style="margin: 0;">-<span id="LC145" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /lib/ghc-X.Y.Z/bin/ghc <- ghc executable (3)</span></span>
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146
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<pre style="margin: 0;">-<span id="LC146" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /lib/ghc-X.Y.Z <- $topdir (4)</span></span>
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<pre style="margin: 0;">-<span id="LC147" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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148
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<pre style="margin: 0;">-<span id="LC148" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- As such, we first need to find the absolute location to the</span></span>
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149
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<pre style="margin: 0;">-<span id="LC149" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- binary.</span></span>
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150
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<pre style="margin: 0;">-<span id="LC150" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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151
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<pre style="margin: 0;">-<span id="LC151" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- getExecutablePath will return (3). One takeDirectory will</span></span>
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152
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<pre style="margin: 0;">-<span id="LC152" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- give use /lib/ghc-X.Y.Z/bin, and another will give us (4).</span></span>
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153
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<pre style="margin: 0;">-<span id="LC153" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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154
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<pre style="margin: 0;">-<span id="LC154" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This of course only works due to the current layout. If</span></span>
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155
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<pre style="margin: 0;">-<span id="LC155" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the layout is changed, such that we have ghc-X.Y.Z/{bin,lib}</span></span>
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156
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<pre style="margin: 0;">-<span id="LC156" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- this would need to be changed accordingly.</span></span>
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157
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<pre style="margin: 0;">-<span id="LC157" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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158
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<pre style="margin: 0;">-<span id="LC158" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;"></></span> <span class="s" style="color: #d14;">"lib"</span><span class="p">)</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getExecutablePath</span></span>
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159
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<pre style="margin: 0;">-<span id="LC159" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">else</span></span>
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160
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<pre style="margin: 0;">-<span id="LC160" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>
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161
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<pre style="margin: 0;">-<span id="LC161" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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162
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125
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<pre style="margin: 0;"> <span id="LC125" class="line" lang="haskell"></span>
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163
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126
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<pre style="margin: 0;"> <span id="LC126" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [tooldir: How GHC finds mingw and perl on Windows]</span></span>
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164
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127
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<pre style="margin: 0;"> <span id="LC127" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Returns @Nothing@ when not on Windows.</span></span>
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<li id="9164f19ba3fda42625076648cc79b5232b79f59c">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/387050d0e26a9e6466b31c9d8e4e4f6273c64c9e#9164f19ba3fda42625076648cc79b5232b79f59c"><strong>libraries/ghc-boot/GHC/BaseDir.hs</strong></a>
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<pre style="margin: 0;">+<span id="LC1" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE CPP #-}</span></span>
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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"><span class="cd">-- | Note [Base Dir]</span></span>
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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- ~~~~~~~~~~~~~~~~~</span></span>
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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- GHC's base directory or top directory containers miscellaneous settings and</span></span>
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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the package database. The main compiler of course needs this directory to</span></span>
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- read those settings and read and write packages. ghc-pkg uses it to find the</span></span>
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9
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<pre style="margin: 0;">+<span id="LC9" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- global package database too.</span></span>
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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- In the interest of making GHC builds more relocatable, many settings also</span></span>
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<pre style="margin: 0;">+<span id="LC12" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- will expand `${top_dir}` inside strings so GHC doesn't need to know it's on</span></span>
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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- installation location at build time. ghc-pkg also can expand those variables</span></span>
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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- and so needs the top dir location to do that too.</span></span>
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<pre style="margin: 0;">+<span id="LC15" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">GHC.BaseDir</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Prelude</span> <span class="c1" style="color: #998; font-style: italic;">-- See note [Why do we import Prelude here?]</span></span>
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<pre style="margin: 0;">+<span id="LC18" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC19" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.FilePath</span></span>
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<pre style="margin: 0;">+<span id="LC20" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC21" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Windows</span></span>
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<pre style="margin: 0;">+<span id="LC22" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">mingw32_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC23" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">getExecutablePath</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC24" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- POSIX</span></span>
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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">elif</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">darwin_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">linux_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">freebsd_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC26" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">getExecutablePath</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC27" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;">+<span id="LC28" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC29" class="line" lang="haskell"><span class="cd">-- | Calculate the location of the base dir</span></span>
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<pre style="margin: 0;">+<span id="LC30" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">String</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC31" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">mingw32_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC32" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;"></></span> <span class="s" style="color: #d14;">"lib"</span><span class="p">)</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">rootDir</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getExecutablePath</span></span>
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<pre style="margin: 0;">+<span id="LC33" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- locate the "base dir" when given the path</span></span>
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<pre style="margin: 0;">+<span id="LC35" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- to the real ghc executable (as opposed to symlink)</span></span>
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<pre style="margin: 0;">+<span id="LC36" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- that is running this function.</span></span>
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<pre style="margin: 0;">+<span id="LC37" class="line" lang="haskell"> <span class="n" style="color: #333;">rootDir</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">FilePath</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">FilePath</span></span>
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<pre style="margin: 0;">+<span id="LC38" class="line" lang="haskell"> <span class="n" style="color: #333;">rootDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">normalise</span></span>
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<pre style="margin: 0;">+<span id="LC39" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">elif</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">darwin_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">linux_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">freebsd_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC40" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- on unix, this is a bit more confusing.</span></span>
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<pre style="margin: 0;">+<span id="LC41" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The layout right now is something like</span></span>
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<pre style="margin: 0;">+<span id="LC42" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC43" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /bin/ghc-X.Y.Z <- wrapper script (1)</span></span>
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<pre style="margin: 0;">+<span id="LC44" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /bin/ghc <- symlink to wrapper script (2)</span></span>
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<pre style="margin: 0;">+<span id="LC45" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /lib/ghc-X.Y.Z/bin/ghc <- ghc executable (3)</span></span>
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<pre style="margin: 0;">+<span id="LC46" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- /lib/ghc-X.Y.Z <- $topdir (4)</span></span>
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<pre style="margin: 0;">+<span id="LC47" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC48" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- As such, we first need to find the absolute location to the</span></span>
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<pre style="margin: 0;">+<span id="LC49" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- binary.</span></span>
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<pre style="margin: 0;">+<span id="LC50" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC51" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- getExecutablePath will return (3). One takeDirectory will</span></span>
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<pre style="margin: 0;">+<span id="LC52" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- give use /lib/ghc-X.Y.Z/bin, and another will give us (4).</span></span>
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<pre style="margin: 0;">+<span id="LC53" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC54" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This of course only works due to the current layout. If</span></span>
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<pre style="margin: 0;">+<span id="LC55" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the layout is changed, such that we have ghc-X.Y.Z/{bin,lib}</span></span>
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<pre style="margin: 0;">+<span id="LC56" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- this would need to be changed accordingly.</span></span>
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<pre style="margin: 0;">+<span id="LC57" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">+<span id="LC58" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;"></></span> <span class="s" style="color: #d14;">"lib"</span><span class="p">)</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getExecutablePath</span></span>
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<pre style="margin: 0;">+<span id="LC59" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">else</span></span>
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<pre style="margin: 0;">+<span id="LC60" class="line" lang="haskell"><span class="n" style="color: #333;">getBaseDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>
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<pre style="margin: 0;">+<span id="LC61" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span></pre>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -37,6 +37,7 @@ Library</td>
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<pre style="margin: 0;"> <span id="LC37" class="line" lang="plaintext"> default-extensions: NoImplicitPrelude</span>
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<pre style="margin: 0;"> <span id="LC38" class="line" lang="plaintext"></span>
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<pre style="margin: 0;"> <span id="LC39" class="line" lang="plaintext"> exposed-modules:</span>
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<pre style="margin: 0;">+<span id="LC40" class="line" lang="plaintext"> GHC.BaseDir</span>
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<pre style="margin: 0;"> <span id="LC41" class="line" lang="plaintext"> GHC.LanguageExtensions</span>
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<pre style="margin: 0;"> <span id="LC42" class="line" lang="plaintext"> GHC.PackageDb</span>
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<pre style="margin: 0;"> <span id="LC43" class="line" lang="plaintext"> GHC.Serialized</span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -31,6 +31,7 @@ import Version ( version, targetOS, targetARCH )</td>
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<pre style="margin: 0;"> <span id="LC31" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">GHC.PackageDb</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">GhcPkg</span></span>
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<pre style="margin: 0;"> <span id="LC32" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.PackageDb</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BinaryStringRep</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">))</span></span>
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<pre style="margin: 0;"> <span id="LC33" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.HandleEncoding</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.BaseDir</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">getBaseDir</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">Distribution.Simple.PackageIndex</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">PackageIndex</span></span>
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36
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">Data.Graph</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">Graph</span></span>
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<pre style="margin: 0;"> <span id="LC37" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">Distribution.ModuleName</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">ModuleName</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -66,9 +67,6 @@ import System.Directory ( doesDirectoryExist, getDirectoryContents,</td>
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66
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<pre style="margin: 0;"> <span id="LC67" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">getCurrentDirectory</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC68" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Exit</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">exitWith</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ExitCode</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">)</span> <span class="p">)</span></span>
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68
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<pre style="margin: 0;"> <span id="LC69" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">getArgs</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">getProgName</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">getEnv</span> <span class="p">)</span></span>
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69
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<pre style="margin: 0;">-<span id="LC69" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">darwin_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">linux_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">mingw32_HOST_OS</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC70" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.Environment</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">getExecutablePath</span> <span class="p">)</span></span>
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71
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<pre style="margin: 0;">-<span id="LC71" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;"> <span id="LC70" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.IO</span></span>
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73
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71
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<pre style="margin: 0;"> <span id="LC71" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.IO.Error</span></span>
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<pre style="margin: 0;"> <span id="LC72" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.IO.Exception</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IOErrorType</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InappropriateType</span><span class="p">))</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="601" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="599" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -601,7 +599,8 @@ getPkgDatabases verbosity mode use_user use_cache expand_vars my_flags = do</td>
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601
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599
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<pre style="margin: 0;"> <span id="LC599" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">err_msg</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"missing --global-package-db option, location of global package database unknown</span><span class="se" style="color: #d14;">\n</span><span class="s" style="color: #d14;">"</span></span>
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602
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600
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<pre style="margin: 0;"> <span id="LC600" class="line" lang="haskell"> <span class="n" style="color: #333;">global_conf</span> <span class="o" style="font-weight: 600;"><-</span></span>
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603
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<pre style="margin: 0;"> <span id="LC601" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="p">[</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">FlagGlobalConfig</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">my_flags</span> <span class="p">]</span> <span class="kr" style="font-weight: 600;">of</span></span>
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604
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<pre style="margin: 0;">-<span id="LC604" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">mb_dir</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getLibDir</span></span>
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602
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<pre style="margin: 0;">+<span id="LC602" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See note [Base Dir] for more information on the base dir / top dir.</span></span>
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603
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<pre style="margin: 0;">+<span id="LC603" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">mb_dir</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getBaseDir</span></span>
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605
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604
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<pre style="margin: 0;"> <span id="LC604" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mb_dir</span> <span class="kr" style="font-weight: 600;">of</span></span>
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606
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605
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<pre style="margin: 0;"> <span id="LC605" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">die</span> <span class="n" style="color: #333;">err_msg</span></span>
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607
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606
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<pre style="margin: 0;"> <span id="LC606" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">dir</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2176" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2177,17 +2176,6 @@ reportError s = do hFlush stdout; hPutStrLn stderr s</td>
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2177
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2176
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<pre style="margin: 0;"> <span id="LC2176" class="line" lang="haskell"><span class="n" style="color: #333;">dieForcible</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">String</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span></span>
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2178
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2177
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<pre style="margin: 0;"> <span id="LC2177" class="line" lang="haskell"><span class="n" style="color: #333;">dieForcible</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">die</span> <span class="p">(</span><span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">++</span> <span class="s" style="color: #d14;">" (use --force to override)"</span><span class="p">)</span></span>
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2179
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2178
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<pre style="margin: 0;"> <span id="LC2178" class="line" lang="haskell"></span>
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2180
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<pre style="margin: 0;">-<span id="LC2180" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------------------------------</span></span>
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2181
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<pre style="margin: 0;">-<span id="LC2181" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Cut and pasted from ghc/compiler/main/SysTools</span></span>
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2182
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<pre style="margin: 0;">-<span id="LC2182" class="line" lang="haskell"></span>
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2183
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<pre style="margin: 0;">-<span id="LC2183" class="line" lang="haskell"><span class="n" style="color: #333;">getLibDir</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">String</span><span class="p">)</span></span>
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2184
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<pre style="margin: 0;">-<span id="LC2184" class="line" lang="haskell"></span>
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2185
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<pre style="margin: 0;">-<span id="LC2185" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">mingw32_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">darwin_HOST_OS</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="n" style="color: #333;">linux_HOST_OS</span><span class="p">)</span></span>
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2186
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<pre style="margin: 0;">-<span id="LC2186" class="line" lang="haskell"><span class="n" style="color: #333;">getLibDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;"></></span> <span class="s" style="color: #d14;">"lib"</span><span class="p">)</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">takeDirectory</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getExecutablePath</span></span>
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2187
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<pre style="margin: 0;">-<span id="LC2187" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">else</span></span>
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2188
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<pre style="margin: 0;">-<span id="LC2188" class="line" lang="haskell"><span class="n" style="color: #333;">getLibDir</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>
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2189
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<pre style="margin: 0;">-<span id="LC2189" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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2190
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<pre style="margin: 0;">-<span id="LC2190" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2179" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------------------------------</span></span>
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<pre style="margin: 0;"> <span id="LC2180" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Adapted from ghc/compiler/utils/Panic</span></span>
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<pre style="margin: 0;"> <span id="LC2181" class="line" lang="haskell"></span>
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