From: John David Anglin <danglin@gcc.gnu.org>
Date: Thu, 10 Dec 2015 01:08:13 +0000 (+0000)
Subject: PR 68115/libfortran
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2f401a8f1888e889386aecdf7eca6e0e31196626;p=gcc.git

PR 68115/libfortran

	PR 68115/libfortran
	* configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
	* configure: Regenerate.
	* elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
	to void.

From-SVN: r231485
---

diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index 3d8d71cfda8..23f3da1bbdc 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,11 @@
+2015-12-09  John David Anglin  <danglin@gcc.gnu.org>
+
+	PR 68115/libfortran
+	* configure.ac: Set libbacktrace_cv_sys_sync to no on hppa*-*-hpux*.
+	* configure: Regenerate.
+	* elf.c (backtrace_initialize): Cast __sync_bool_compare_and_swap call
+	to void.
+
 2015-09-17  Ian Lance Taylor  <iant@google.com>
 
 	* posix.c (backtrace_open): Cast second argument of open() to int.
diff --git a/libbacktrace/configure b/libbacktrace/configure
index f8adc834246..8d0146ac378 100755
--- a/libbacktrace/configure
+++ b/libbacktrace/configure
@@ -9103,7 +9103,7 @@ _LT_EOF
 	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
 	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
 	else
-	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
 	fi
 	aix_use_runtimelinking=no
 
@@ -11726,7 +11726,10 @@ if test "${libbacktrace_cv_sys_sync+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "${with_target_subdir}"; then
-   libbacktrace_cv_sys_sync=yes
+   case "${host}" in
+   hppa*-*-hpux*) libbacktrace_cv_sys_sync=no ;;
+   *) libbacktrace_cv_sys_sync=yes ;;
+   esac
  else
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
diff --git a/libbacktrace/configure.ac b/libbacktrace/configure.ac
index 33866e9093f..db4a291dea9 100644
--- a/libbacktrace/configure.ac
+++ b/libbacktrace/configure.ac
@@ -172,7 +172,10 @@ AC_SUBST(PIC_FLAG)
 AC_CACHE_CHECK([__sync extensions],
 [libbacktrace_cv_sys_sync],
 [if test -n "${with_target_subdir}"; then
-   libbacktrace_cv_sys_sync=yes
+   case "${host}" in
+   hppa*-*-hpux*) libbacktrace_cv_sys_sync=no ;;
+   *) libbacktrace_cv_sys_sync=yes ;;
+   esac
  else
    AC_LINK_IFELSE(
      [AC_LANG_PROGRAM([int i;],
diff --git a/libbacktrace/elf.c b/libbacktrace/elf.c
index 3f14b11a43c..71ad340c005 100644
--- a/libbacktrace/elf.c
+++ b/libbacktrace/elf.c
@@ -955,7 +955,8 @@ backtrace_initialize (struct backtrace_state *state, int descriptor,
       if (found_sym)
 	backtrace_atomic_store_pointer (&state->syminfo_fn, elf_syminfo);
       else
-	__sync_bool_compare_and_swap (&state->syminfo_fn, NULL, elf_nosyms);
+	(void) __sync_bool_compare_and_swap (&state->syminfo_fn, NULL,
+					     elf_nosyms);
     }
 
   if (!state->threaded)