patch 8.2.2691: autoconf may mess up compiler flags
Problem: Autoconf may mess up compiler flags.
Solution: Handle removing FORTIFY_SOURCE a bit better. (Vladimir Lomov,
closes #8049)
diff --git a/src/configure.ac b/src/configure.ac
index 0bb5cc5..c63c0ec 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -4484,8 +4484,8 @@
dnl And undefine it first to avoid a warning.
AC_MSG_CHECKING(whether we need -D_FORTIFY_SOURCE=1)
if test "$gccmajor" -gt "3"; then
- CFLAGS=`echo "$CFLAGS" | sed -e 's/ *-Wp,-D_FORTIFY_SOURCE=.//g' -e 's/ *-D_FORTIFY_SOURCE=.//g' -e 's/ *-U_FORTIFY_SOURCE//g' -e 's/$/ -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1/'`
- CPPFLAGS=`echo "$CPPFLAGS" | sed -e 's/ *-Wp,-D_FORTIFY_SOURCE=.//g' -e 's/ *-D_FORTIFY_SOURCE=.//g' -e 's/ *-U_FORTIFY_SOURCE//g'`
+ CFLAGS=`echo "$CFLAGS" | sed -e 's/-D_FORTIFY_SOURCE=.,//g' -e 's/,-D_FORTIFY_SOURCE=. //g' -e 's/ *-Wp,-D_FORTIFY_SOURCE=. //g' -e 's/ *-D_FORTIFY_SOURCE=.//g' -e 's/ *-U_FORTIFY_SOURCE//g' -e 's/$/ -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1/'`
+ CPPFLAGS=`echo "$CPPFLAGS" | sed -e 's/-D_FORTIFY_SOURCE=.,//g' -e 's/,-D_FORTIFY_SOURCE=. //g' -e 's/ *-Wp,-D_FORTIFY_SOURCE=. //g' -e 's/ *-D_FORTIFY_SOURCE=.//g' -e 's/ *-U_FORTIFY_SOURCE//g'`
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)