[commit: ghc] ghc-8.0: build system: Include CONF_LD_LINKER_OPTS in ALL_LD_OPTS (7bd5dd0)

[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/7bd5dd093120cc4a1952a85e665fd68377c5c80c/ghc

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

commit 7bd5dd093120cc4a1952a85e665fd68377c5c80c
Author: Ben Gamari <bgamari.foss at gmail.com>
Date:   Fri Nov 4 15:03:44 2016 -0400

    build system: Include CONF_LD_LINKER_OPTS in ALL_LD_OPTS
    
    This ensures that artifacts built with build-prog see these options.
    Also spruce up comments.
    
    Test Plan: Carefully read it.
    
    Reviewers: austin, hvr, erikd
    
    Reviewed By: erikd
    
    Subscribers: thomie, erikd
    
    Differential Revision: https://phabricator.haskell.org/D2673
    
    (cherry picked from commit e2a9b529a8b06e2dace8c2b4c58710cf5e57ef03)


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

7bd5dd093120cc4a1952a85e665fd68377c5c80c
 configure.ac              |  5 +++++
 rules/distdir-way-opts.mk | 12 +++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 13d33d2..8259f0c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -665,15 +665,20 @@ FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_GCC_LINKER_OPTS_STAG
 
 FP_GCC_EXTRA_FLAGS
 
+# See rules/distdir-way-opts.mk for details.
+# Flags passed to the C compiler
 AC_SUBST(CONF_CC_OPTS_STAGE0)
 AC_SUBST(CONF_CC_OPTS_STAGE1)
 AC_SUBST(CONF_CC_OPTS_STAGE2)
+# Flags passed to the C compiler when we ask it to link
 AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE0)
 AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE1)
 AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE2)
+# Flags passed to the linker when we ask it to link
 AC_SUBST(CONF_LD_LINKER_OPTS_STAGE0)
 AC_SUBST(CONF_LD_LINKER_OPTS_STAGE1)
 AC_SUBST(CONF_LD_LINKER_OPTS_STAGE2)
+# Flags passed to the C preprocessor
 AC_SUBST(CONF_CPP_OPTS_STAGE0)
 AC_SUBST(CONF_CPP_OPTS_STAGE1)
 AC_SUBST(CONF_CPP_OPTS_STAGE2)
diff --git a/rules/distdir-way-opts.mk b/rules/distdir-way-opts.mk
index f099d4e..4ebbc0e 100644
--- a/rules/distdir-way-opts.mk
+++ b/rules/distdir-way-opts.mk
@@ -34,9 +34,18 @@ define distdir-way-opts # args: $1 = dir, $2 = distdir, $3 = way, $4 = stage
 #
 #  CONF_HC_OPTS          GHC options from ./configure      mk/config.mk.in
 #
+#  CONF_CPP_OPTS_STAGE$4 CPP options from ./configure      mk/config.mk.in
+#
+#  CONF_CC_OPTS_STAGE$4  C compiler options from           mk/config.mk.in
+#                        ./configure
+#
 #  CONF_HC_OPTS_STAGE$4  GHC options from ./configure      mk/config.mk.in
 #                        specific to stage $4
 #
+#  CONF_LD_LINKER_OPTS_STAGE$4
+#                        GHC options from ./configure      mk/config.mk.in
+#                        specific to stage $4
+#
 #  WAY_$3_HC_OPTS        GHC options specific to way $3    mk/ways.mk
 #   
 #  SRC_HC_OPTS           source-tree-wide GHC options      mk/config.mk.in
@@ -186,7 +195,8 @@ $1_$2_$3_ALL_LD_OPTS = \
  $$($1_$2_DIST_LD_OPTS) \
  $$($1_$2_$3_LD_OPTS) \
  $$($1_$2_EXTRA_LD_OPTS) \
- $$(EXTRA_LD_OPTS)
+ $$(EXTRA_LD_OPTS) \
+ $$(CONF_LD_LINKER_OPTS_STAGE$4)
 
 # Options for passing to GHC when we use it for linking
 $1_$2_$3_GHC_LD_OPTS = \