From c6a69e4755affc9655d3aa417a4a750cf0e7b00a Mon Sep 17 00:00:00 2001
From: rmanfredi <rmanfredi@190e5f8e-a817-0410-acf6-e9863daed9af>
Date: Mon, 28 Aug 2006 16:44:41 +0000
Subject: Default to "-O2 -g" when using gcc.

git-svn-id: https://dist.svn.sourceforge.net/svnroot/dist/trunk/dist@12 190e5f8e-a817-0410-acf6-e9863daed9af
---
 mcon/U/ccflags.U | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

(limited to 'mcon/U')

diff --git a/mcon/U/ccflags.U b/mcon/U/ccflags.U
index 8e61474..13b511e 100644
--- a/mcon/U/ccflags.U
+++ b/mcon/U/ccflags.U
@@ -94,10 +94,16 @@
 : determine optimize, if desired, or use for debug flag also
 case "$optimize" in
 ' '|$undef) dflt='none';;
-'') dflt='-O';;
+'')
+	case "$gccversion" in
+	'') dflt='-O';;
+	*) dflt='-O2 -g';;
+	esac
+	;;
 *) dflt="$optimize";;
 esac
-$cat <<EOH
+case "$gccversion" in
+'') $cat <<EOH
 
 Some C compilers have problems with their optimizers.  By default, $package
 compiles with the -O flag to use the optimizer.  Alternately, you might want
@@ -106,6 +112,17 @@ systems).  Either flag can be specified here.  To use neither flag, specify
 the word "none".
 
 EOH
+	;;
+*) $cat <<EOH
+
+With the GNU C compiler, it is possible to supply both -O2 and -g flags, to
+be able to reasonably optimize, whilst retaining the ability to use a
+symbolic debugger.  Either flag can be specified here.  To use neither flag,
+specify the word "none".
+
+EOH
+	;;
+esac
 rp="What optimizer/debugger flag should be used?"
 . ./myread
 optimize="$ans"
-- 
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