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authoriains <iains@138bc75d-0d04-0410-961f-82ee72b054a4>2015-04-10 06:43:52 +0000
committeriains <iains@138bc75d-0d04-0410-961f-82ee72b054a4>2015-04-10 06:43:52 +0000
commitfb5ccd6d2aabbec414293d432363c8b74adf151a (patch)
tree7b815277dd56cf4c4aa0686897089fe68d9e2937 /gcc/configure
parent9707d4b3c22d56173c716d614a91b5c9489b0912 (diff)
downloadgcc-fb5ccd6d2aabbec414293d432363c8b74adf151a.tar.gz
PR target/65351
config/ * mh-darwin: Only apply -mdynamic-no-pic for m32 Darwin when the compiler in use supports -mno-dynamic-no-pic. * picflag.m4: Only append -mno-dynamic-no-pic for Darwin when -mdynamic-no-pic is present in CFLAGS. libiberty/ * configure: Regenerate. libada/ * configure: Regenerate. libgcc/ * configure: Regenerate. gcc/ * configure: Regenerate. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221967 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/configure')
-rwxr-xr-xgcc/configure18
1 files changed, 11 insertions, 7 deletions
diff --git a/gcc/configure b/gcc/configure
index ed948285282..9523773e721 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -4786,11 +4786,15 @@ esac
case "${target}" in
# PIC is the default on some targets or must not be used.
*-*-darwin*)
- # PIC is the default on this platform
- # Common symbols not allowed in MH_DYLIB files
- # Cancel any earlier -mdynamic-no-pic, as that makes
- # the code not suitable for shared libraries.
- PICFLAG_FOR_TARGET='-fno-common -mno-dynamic-no-pic'
+ # For darwin, common symbols are not allowed in MH_DYLIB files
+ case "${CFLAGS}" in
+ # If we are using a compiler supporting mdynamic-no-pic
+ # and the option has been tested as safe to add, then cancel
+ # it here, since the code generated is incompatible with shared
+ # libs.
+ *-mdynamic-no-pic*) PICFLAG_FOR_TARGET='-fno-common -mno-dynamic-no-pic' ;;
+ *) PICFLAG_FOR_TARGET=-fno-common ;;
+ esac
;;
alpha*-dec-osf5*)
# PIC is the default.
@@ -18149,7 +18153,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 18152 "configure"
+#line 18156 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -18255,7 +18259,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 18258 "configure"
+#line 18262 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H