PR other/54761

        * configure.ac (EXTRA_FLAGS): New.
	* Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
        * configure, Makefile.in: Regenerate.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@191981 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 26 insertions, 5 deletions

diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index c5725793f2f..986db499b7a 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,10 @@
+2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
+
+        PR other/54761
+        * configure.ac (EXTRA_FLAGS): New.
+	* Makefile.am (AM_FLAGS): Add $(EXTRA_FLAGS).
+        * configure, Makefile.in: Regenerate.
+
 2012-09-29  Ian Lance Taylor  <iant@google.com>
 
 	PR other/54749
diff --git a/libbacktrace/Makefile.am b/libbacktrace/Makefile.am
index a90a602d49d..da1250234c6 100644
--- a/libbacktrace/Makefile.am
+++ b/libbacktrace/Makefile.am
@@ -12,7 +12,7 @@
 #     notice, this list of conditions and the following disclaimer in
 #     the documentation and/or other materials provided with the
 #     distribution.  
-    
+
 #     (3) The name of the author may not be used to
 #     endorse or promote products derived from this software without
 #     specific prior written permission.
@@ -34,7 +34,7 @@ ACLOCAL_AMFLAGS = -I .. -I ../config
 AM_CPPFLAGS = -I $(top_srcdir)/../include -I $(top_srcdir)/../libgcc \
 	-I ../libgcc -I ../gcc/include -I $(MULTIBUILDTOP)../../gcc/include
 
-AM_CFLAGS = $(WARN_FLAGS) $(PIC_FLAG)
+AM_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) $(PIC_FLAG)
 
 noinst_LTLIBRARIES = libbacktrace.la
 
diff --git a/libbacktrace/Makefile.in b/libbacktrace/Makefile.in
index b416c267b10..3e7c91a1af8 100644
--- a/libbacktrace/Makefile.in
+++ b/libbacktrace/Makefile.in
@@ -152,6 +152,7 @@ ECHO_N = @ECHO_N@
 ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EXEEXT = @EXEEXT@
+EXTRA_FLAGS = @EXTRA_FLAGS@
 FGREP = @FGREP@
 FORMAT_FILE = @FORMAT_FILE@
 GREP = @GREP@
@@ -253,7 +254,7 @@ ACLOCAL_AMFLAGS = -I .. -I ../config
 AM_CPPFLAGS = -I $(top_srcdir)/../include -I $(top_srcdir)/../libgcc \
 	-I ../libgcc -I ../gcc/include -I $(MULTIBUILDTOP)../../gcc/include
 
-AM_CFLAGS = $(WARN_FLAGS) $(PIC_FLAG)
+AM_CFLAGS = $(EXTRA_FLAGS) $(WARN_FLAGS) $(PIC_FLAG)
 noinst_LTLIBRARIES = libbacktrace.la
 libbacktrace_la_SOURCES = \
 	backtrace.h \
diff --git a/libbacktrace/configure b/libbacktrace/configure
index 51a509cf028..8e2ea413cba 100755
--- a/libbacktrace/configure
+++ b/libbacktrace/configure
@@ -612,6 +612,7 @@ FORMAT_FILE
 BACKTRACE_SUPPORTS_THREADS
 PIC_FLAG
 WARN_FLAGS
+EXTRA_FLAGS
 BACKTRACE_FILE
 multi_basedir
 OTOOL64
@@ -11080,7 +11081,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11083 "configure"
+#line 11084 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11186,7 +11187,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11189 "configure"
+#line 11190 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11488,6 +11489,12 @@ fi
 fi
 
 
+EXTRA_FLAGS=
+if test "x$GCC" = "xyes"; then
+  EXTRA_FLAGS=-funwind-tables
+fi
+
+
 WARN_FLAGS=
 save_CFLAGS="$CFLAGS"
 for real_option in -W -Wall -Wwrite-strings -Wstrict-prototypes \
diff --git a/libbacktrace/configure.ac b/libbacktrace/configure.ac
index dbd0a81e817..1ea8860f99b 100644
--- a/libbacktrace/configure.ac
+++ b/libbacktrace/configure.ac
@@ -96,6 +96,12 @@ else
 fi
 AC_SUBST(BACKTRACE_FILE)
 
+EXTRA_FLAGS=
+if test "x$GCC" = "xyes"; then
+  EXTRA_FLAGS=-funwind-tables
+fi
+AC_SUBST(EXTRA_FLAGS)
+
 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
 			  -Wmissing-prototypes -Wold-style-definition \
 			  -Wmissing-format-attribute -Wcast-qual],