From 86399b53ffefd607fc759e4f4630b64788a33cf4 Mon Sep 17 00:00:00 2001
From: Ivan Maidanski <ivmai@mail.ru>
Date: Sun, 8 Jun 2014 17:24:17 +0400
Subject: [PATCH] Fix CFLAGS in configure regarding -O flag passing to SunCC
 compiler

* configure.ac (CFLAGS): Add -O flag if Solaris SunCC (i.e., not GCC)
regardless of threads support (i.e., even in case it is off).
---
 configure.ac | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 5edd11bc..9539f0de 100644
--- a/configure.ac
+++ b/configure.ac
@@ -310,9 +310,8 @@ case "$THREADS" in
         ;;
     esac
     case "$host" in
-     sparc*-*-solaris*)
+      sparc*-*-solaris*)
         if test "$GCC" != yes; then
-          CFLAGS="-O $CFLAGS"
           need_atomic_ops_asm=true
         fi
         ;;
@@ -382,6 +381,12 @@ case "$host" in
    powerpc-*-darwin*)
       powerpc_darwin=true
       ;;
+   *-*-solaris*)
+      if test "$GCC" != yes; then
+        # Solaris SunCC
+        CFLAGS="-O $CFLAGS"
+      fi
+      ;;
    *-*-wince*)
       if test "$enable_gc_debug" != "no"; then
         AC_DEFINE([GC_READ_ENV_FILE], 1,
-- 
2.40.0