[commit: ghc] ghc-8.0: fix OpenBSD linkage (wxneeded) (c5f375c)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : ghc-8.0
Link       : http://ghc.haskell.org/trac/ghc/changeset/c5f375c53671130c79713800b13a1da53d070b84/ghc

>---------------------------------------------------------------

commit c5f375c53671130c79713800b13a1da53d070b84
Author: Sergei Trofimovich <siarheit at google.com>
Date:   Sat Dec 17 20:25:19 2016 +0000

    fix OpenBSD linkage (wxneeded)
    
    There is two types of options passed directly to 'ld'
    (and not to 'gcc' driver):
        - CONF_LD_LINKER_OPTS_STAGE$4
        - EXTRA_LD_OPTS
    
    This changedoes two things:
    
    - split 'EXTRA_LD_OPTS' into two variables:
        - EXTRA_LD_OPTS (accepts 'gcc' wrapper options)
        - EXTRA_LD_LINKER_OPTS (accepts raw 'ld' options)
    
    - wraps all LD_LINKER options as '-Wl,' when passed
      to 'gcc' driver.
    
    Fixes https://phabricator.haskell.org/D2776
    
    Signed-off-by: Sergei Trofimovich <siarheit at google.com>
    (cherry picked from commit 87c3b1d4395c3d4fc7a5272717c48f3f525da959)


>---------------------------------------------------------------

c5f375c53671130c79713800b13a1da53d070b84
 aclocal.m4                 | 2 +-
 rules/build-package-way.mk | 2 +-
 rules/distdir-way-opts.mk  | 5 +++--
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 04bcf54..7723743 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -606,7 +606,7 @@ AC_DEFUN([FPTOOLS_SET_C_LD_FLAGS],
     x86_64-*-openbsd*)
         # We need -z wxneeded at least to link ghc-stage2 to workaround
         # W^X issue in GHCi on OpenBSD current (as of Aug 2016)
-        $3="$$3 -Wl,-zwxneeded"
+        $3="$$3 -Wl,-z,wxneeded"
         $4="$$4 -z wxneeded"
         ;;
 
diff --git a/rules/build-package-way.mk b/rules/build-package-way.mk
index 905b7f0..8f61a35 100644
--- a/rules/build-package-way.mk
+++ b/rules/build-package-way.mk
@@ -155,7 +155,7 @@ BINDIST_LIBS += $$($1_$2_GHCI_LIB)
 endif
 endif
 $$($1_$2_GHCI_LIB) : $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS) $$($1_$2_LD_SCRIPT)
-	$$(call cmd,LD) $$(CONF_LD_LINKER_OPTS_STAGE$4) -r $$(if $$($1_$2_LD_SCRIPT),-T $$($1_$2_LD_SCRIPT)) -o $$@ $$(EXTRA_LD_OPTS) $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS)
+	$$(call cmd,LD) $$(CONF_LD_LINKER_OPTS_STAGE$4) -r $$(if $$($1_$2_LD_SCRIPT),-T $$($1_$2_LD_SCRIPT)) -o $$@ $$(EXTRA_LD_LINKER_OPTS) $$($1_$2_$3_HS_OBJS) $$($1_$2_$3_CMM_OBJS) $$($1_$2_$3_C_OBJS) $$($1_$2_$3_S_OBJS) $$($1_$2_EXTRA_OBJS)
 
 ifeq "$$($1_$2_BUILD_GHCI_LIB)" "YES"
 # Don't bother making ghci libs for bootstrapping packages
diff --git a/rules/distdir-way-opts.mk b/rules/distdir-way-opts.mk
index 4f943a1..61e03ee 100644
--- a/rules/distdir-way-opts.mk
+++ b/rules/distdir-way-opts.mk
@@ -189,14 +189,15 @@ $1_$2_$3_GHC_CC_OPTS = \
  $$(addprefix -optc, $$($1_$2_$3_ALL_CC_OPTS)) \
  $$($1_$2_$3_MOST_HC_OPTS)
 
-# Options for passing to plain ld
+# Options for passing to gcc for linking
 $1_$2_$3_ALL_LD_OPTS = \
  $$(WAY_$3_LD_OPTS) \
  $$($1_$2_DIST_LD_OPTS) \
  $$($1_$2_$3_LD_OPTS) \
  $$($1_$2_EXTRA_LD_OPTS) \
  $$(EXTRA_LD_OPTS) \
- $$(CONF_LD_LINKER_OPTS_STAGE$4)
+ $$(foreach o,$$(EXTRA_LD_LINKER_OPTS),-optl-Wl$$(comma)$$o) \
+ $$(foreach o,$$(CONF_LD_LINKER_OPTS_STAGE$4),-optl-Wl$$(comma)$$o)
 
 # Options for passing to GHC when we use it for linking
 $1_$2_$3_GHC_LD_OPTS = \