updated for version 7.2-044
diff --git a/src/configure.in b/src/configure.in
index ad00d42..b6c77da 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -3152,18 +3152,25 @@
dnl But only when making dependencies, cproto and lint don't take "-isystem".
dnl Mac gcc returns "powerpc-apple-darwin8-gcc-4.0.1 (GCC)...", need to allow
dnl the number before the version number.
-AC_MSG_CHECKING(for GCC 3 or later)
DEPEND_CFLAGS_FILTER=
if test "$GCC" = yes; then
+ AC_MSG_CHECKING(for GCC 3 or later)
gccmajor=`echo "$gccversion" | sed -e 's/^\([[1-9]]\)\..*$/\1/g'`
if test "$gccmajor" -gt "2"; then
DEPEND_CFLAGS_FILTER="| sed 's+-I */+-isystem /+g'"
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
fi
-fi
-if test "$DEPEND_CFLAGS_FILTER" = ""; then
- AC_MSG_RESULT(no)
-else
- AC_MSG_RESULT(yes)
+ dnl -D_FORTIFY_SOURCE=2 crashes Vim on strcpy(buf, "000") when buf is
+ dnl declared as char x[1] but actually longer. Introduced in gcc 4.0.
+ AC_MSG_CHECKING(whether we need -D_FORTIFY_SOURCE=1)
+ if test "$gccmajor" -gt "3"; then
+ CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=1"
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
+ fi
fi
AC_SUBST(DEPEND_CFLAGS_FILTER)