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authorHaru <haru@dotalux.com>2015-08-27 01:26:14 +0200
committerHaru <haru@dotalux.com>2015-08-27 01:28:53 +0200
commit12c8ae2541b654a09bd6a2f264856f6fc0089a23 (patch)
treee8f40499272afe76343f7a1f744327dca801419f /configure
parentd2e3acbe3c388d36b8d2311d0f23b38babc1aae5 (diff)
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Added an availability check for the -rdynamic linker option
- Fixes an issue preventing to compile on non-ELF systems (i.e. OS X) using recent gcc versions (such as 5.2) that are unable to filter out this option where it's not needed. - Thanks to Smokexyz for reporting the issue. Signed-off-by: Haru <haru@dotalux.com>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure37
1 files changed, 34 insertions, 3 deletions
diff --git a/configure b/configure
index fbf36aa38..629451942 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in afa7ec2.
+# From configure.in d2e3acb.
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69.
#
@@ -4616,8 +4616,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
CFLAGS="$CFLAGS -pipe -ffast-math -fvisibility=hidden -Wall -Wextra -Wno-sign-compare"
CPPFLAGS="$CPPFLAGS -I../common"
-LDFLAGS="$LDFLAGS -rdynamic"
-
+LDFLAGS="$LDFLAGS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
$as_echo_n "checking whether byte ordering is bigendian... " >&6; }
@@ -5008,6 +5007,38 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
fi
+#
+# Check if the linker supports/accepts -rdynamic
+# Generally only needed by the ELF linker, in order to produce backtraces.
+# On non-ELF platforms, some compilers (i.e. gcc < 5 and clang on OSX) are able to ignore it, others will error out.
+#
+OLD_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS -rdynamic"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -rdynamic" >&5
+$as_echo_n "checking whether $CC accepts -rdynamic... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+ int main(int argc, char **argv)
+ {
+ return 0;
+ }
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ LDFLAGS="$OLD_LDFLAGS"
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
#
# LTO Support test