[PATCH] Allow BUILD_CFLAGS and TARGET_CFLAGS to be specified at configure time

Jeremy Kerr jk at ozlabs.org
Tue Jul 15 08:08:22 EDT 2008

Currently, we're unconditionally setting the build and target cflags in
the configure script, which means that they can't be easily

This change conditionally sets these variables if they're not specified
during configure, allowing something like:

BUILD_CFLAGS=-Werror ./configure

Signed-off-by: Jeremy Kerr <jk at ozlabs.org>

 configure.ac |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 5f1c15a..fa5330a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,8 +56,13 @@ if test "${host_alias}" ; then
+if test "x$BUILD_CFLAGS" = "x" ; then
+	BUILD_CFLAGS='-O2 -Wall'
+if test "x$TARGET_CFLAGS" = "x" ; then
 AC_ARG_WITH([objdir], AC_HELP_STRING([--with-objdir=<dir>],[select directory for object files]),
 	[ OBJDIR="$withval" ], [ OBJDIR="$OBJDIR" ])

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