This does probably need more discussion (and, instead of just hacking
away -O2, a proper fix for the bugs covered by -O0). I just include it
for completeness here. Not necessary to make 'make distcheck' work.
Signed-off-by: Robert Schwebel <[EMAIL PROTECTED]>
configure.in | 49 +++++++++++++++++++++++++++++++++----------------
1 file changed, 33 insertions(+), 16 deletions(-)
Index: configure.in
===================================================================
--- configure.in.orig
+++ configure.in
@@ -41,6 +41,25 @@ AC_SUBST(ILASM)
AC_PATH_PROG(SYSTEM_AR, ar)
+#
+# Debugging
+#
+AC_MSG_CHECKING([whether to enable debugging])
+AC_ARG_ENABLE(debug,
+ AS_HELP_STRING([--enable-debug], [enable debugging @<:@default=yes@:>@]),
+ [case "$enableval" in
+ y | yes) CONFIG_DEBUG=yes ;;
+ *) CONFIG_DEBUG=no ;;
+ esac],
+ [CONFIG_DEBUG=yes])
+AC_MSG_RESULT([${CONFIG_DEBUG}])
+if test "${CONFIG_DEBUG}" = "yes"; then
+ CFLAGS="${CFLAGS} -Wall -Wsign-compare -Wfloat-equal -Wformat-security -g
-O0"
+ AC_DEFINE(DEBUG, 1, [debugging])
+else
+ CFLAGS="${CFLAGS} -Wall -O2"
+fi
+
dnl Option to disable cygwin1.dll under Windows.
dnl case "$host$" in
dnl *-*-cygwin*) def_cygwin=false ;;
@@ -217,16 +236,18 @@ AC_ARG_WITH(profile,
PROFILE_NAME=full
])
-#
-# NOTE! This (--disable-optimizations argument) should be able to be removed
when the gcc optimizer bug goes away.......
-#
-AC_ARG_ENABLE(optimizations,
-[ --disable-optimizations disables all CFLAGS that have been passed into
./configure via the environment or
- by the PROG_CC macro. The result is that CFLAGS is
replaced by the default '-g'.
- This is useful in bypassing the apparent bugs in
gcc's optimizer.],
-[
- CFLAGS="-g"
-])
+dnl FIXME RSC: this is complete bogus, isn't it?
+dnl
+dnl #
+dnl # NOTE! This (--disable-optimizations argument) should be able to be
removed when the gcc optimizer bug goes away.......
+dnl #
+dnl AC_ARG_ENABLE(optimizations,
+dnl [ --disable-optimizations disables all CFLAGS that have been passed into
./configure via the environment or
+dnl by the PROG_CC macro. The result is that CFLAGS
is replaced by the default '-g'.
+dnl This is useful in bypassing the apparent bugs in
gcc's optimizer.],
+dnl [
+dnl CFLAGS="-g"
+dnl ])
dnl This code was borrowed from "libgc" to test for the correct
dnl thread package to use, and to notify the garbage collector's
@@ -509,12 +530,8 @@ AC_TRY_COMPILE([], [
AC_MSG_RESULT($piccompgoto)
dnl Check to see if we are using gcc or not.
-if test x$GCC = xyes ; then
- if test x$withjit = xyes ; then
- CFLAGS="$CFLAGS -fno-omit-frame-pointer -Wall"
- else
- CFLAGS="$CFLAGS -Wall"
- fi
+if test x$GCC = xyes && test x$withjit = xyes ; then
+ CFLAGS="$CFLAGS -fno-omit-frame-pointer"
fi
dnl Check for "tm_gmtoff" in "struct tm".
--
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
Handelsregister: Amtsgericht Hildesheim, HRA 2686
Hannoversche Str. 2, 31134 Hildesheim, Germany
Phone: +49-5121-206917-0 | Fax: +49-5121-206917-9
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