summaryrefslogtreecommitdiff
path: root/m4
diff options
context:
space:
mode:
authorSergey Poznyakoff <gray@gnu.org.ua>2001-10-17 09:56:47 +0000
committerSergey Poznyakoff <gray@gnu.org.ua>2001-10-17 09:56:47 +0000
commitbe0903f92dcec7be9d6f6c5f54819701f08ec7c8 (patch)
treede70d54e8324a0211d69a1b89a5e3de1e8203a53 /m4
parentbc7dbbd9ec449ad2ec7b14727031b5b3710d24ef (diff)
downloadmailutils-be0903f92dcec7be9d6f6c5f54819701f08ec7c8.tar.gz
mailutils-be0903f92dcec7be9d6f6c5f54819701f08ec7c8.tar.bz2
Handle --enable-debug option. When the option is specified,
adds -ggdb to the invocation of gcc, and removes any optimization directives from CFLAGS.
Diffstat (limited to 'm4')
-rw-r--r--m4/debug.m434
1 files changed, 34 insertions, 0 deletions
diff --git a/m4/debug.m4 b/m4/debug.m4
new file mode 100644
index 000000000..2801acc89
--- /dev/null
+++ b/m4/debug.m4
@@ -0,0 +1,34 @@
+dnl This file is part of GNU mailutils.
+dnl Copyright (C) 2001 Free Software Foundation, Inc.
+dnl
+dnl This file is free software; as a special exception the author gives
+dnl unlimited permission to copy and/or distribute it, with or without
+dnl modifications, as long as this notice is preserved.
+dnl
+dnl This program is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
+dnl implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+dnl
+dnl Check for --enable-debug switch. When the switch is specified, add
+dnl -ggdb to CFLAGS and remove any optimization options from there.
+dnl
+
+AC_DEFUN(MU_DEBUG_MODE,
+ [AC_ARG_ENABLE(debug,
+ [ --enable-debug enable debugging mode],
+ [if test x"$enableval" = xyes; then
+ if test x"$GCC" = xyes; then
+ AC_MSG_CHECKING(whether gcc accepts -ggdb)
+ save_CFLAGS=$CFLAGS
+ CFLAGS="-ggdb"
+ AC_TRY_COMPILE([],void f(){},
+ AC_MSG_RESULT(yes),
+ [if test x"$ac_cv_prog_cc_g" = xyes; then
+ CFLAGS=-g
+ else
+ CFLAGS=
+ fi
+ AC_MSG_RESULT(no)])
+ CFLAGS="`echo $save_CFLAGS | sed 's/-O[[0-9]]//g'` $CFLAGS"
+ fi
+ fi])])

Return to:

Send suggestions and report system problems to the System administrator.