[GHC] #1018: ghci dynamic loading of X11 - unknown symbol `_printf$LDBLStub'

[GHC]

#1018: ghci dynamic loading of X11 - unknown symbol `_printf$LDBLStub'
----------------------------------+-----------------------------------------
 Reporter:  ykardia               |          Owner:         
     Type:  bug                   |         Status:  closed 
 Priority:  normal                |      Milestone:  6.6.1  
Component:  GHCi                  |        Version:  6.6    
 Severity:  normal                |     Resolution:  fixed  
 Keywords:  X11, dynamic loading  |     Difficulty:  Unknown
 Testcase:                        |   Architecture:  powerpc
       Os:  MacOS X               |  
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Changes (by wolfgang):

  * cc:  wolfgang.thaller at gmx.net => wolfgang.thaller at gmx.net,
         gwright at antiope.com

Comment:

 The patch modifies Linker.c, where the LDBLStub symbols where declared but
 not included in the symbol list, and configure.ac, where incorrect
 escaping would lead configure.ac to check for printf instead of
 printf$LDBLStub, leading to false positives.

 {{{
 Tue Nov 21 01:49:53 CET 2006  wolfgang.thaller at gmx.net
   * Fix printf$LDBLStub workaround for Darwin

   Apparently, the original fix never really worked due to typos and
 oversights.
 diff -rN -u old-stable-ghc/configure.ac new-stable-ghc/configure.ac
 --- old-stable-ghc/configure.ac 2006-11-21 15:08:22.000000000 +0100
 +++ new-stable-ghc/configure.ac 2006-11-21 15:08:23.000000000 +0100
 @@ -1169,8 +1169,8 @@
  AC_CHECK_FUNCS(clock_gettime)

  dnl ** check for Apple's "interesting" long double compatibility scheme
 -AC_MSG_CHECKING(for printf$LDBLStub)
 -AC_TRY_LINK_FUNC(printf$LSBLStub,
 +AC_MSG_CHECKING(for printf\$LDBLStub)
 +AC_TRY_LINK_FUNC(printf\$LDBLStub,
      [
          AC_MSG_RESULT(yes)
          AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
 diff -rN -u old-stable-ghc/rts/Linker.c new-stable-ghc/rts/Linker.c
 --- old-stable-ghc/rts/Linker.c 2006-11-21 15:08:22.000000000 +0100
 +++ new-stable-ghc/rts/Linker.c 2006-11-21 15:08:23.000000000 +0100
 @@ -797,6 +797,7 @@
        RTS_POSIX_ONLY_SYMBOLS
        RTS_MINGW_ONLY_SYMBOLS
        RTS_CYGWIN_ONLY_SYMBOLS
 +      RTS_DARWIN_ONLY_SYMBOLS
        RTS_LIBGCC_SYMBOLS
  #if defined(darwin_HOST_OS) && defined(i386_HOST_ARCH)
        // dyld stub code contains references to this,
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1018>
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