commit 91b992c38769b343b4a66a5f8e589aa9897fdc9f
author Bram Moolenaar <Bram@vim.org> Sun Nov 17 19:07:42 2019 +0100
committer Bram Moolenaar <Bram@vim.org> Sun Nov 17 19:07:42 2019 +0100
tree dab0af77605e0250a5a819e4c552107358ab548f
parent 539aa6b25eaea91dfd1a175cd053c0f259fa2e58

patch 8.1.2316: FORTIFY_SOURCE can also be present in CPPFLAGS

Problem:    FORTIFY_SOURCE can also be present in CPPFLAGS.
Solution:   Remove it in configure. (Benedikt Morbach, closes #2786)

src/configure.ac

diff --git a/src/configure.ac b/src/configure.ac
index b59914b..4065817 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -3789,7 +3789,7 @@
      ca_context *hello;
      ca_context_create(&hello);],
        AC_MSG_RESULT(yes); AC_DEFINE(HAVE_CANBERRA),
-       AC_MSG_RESULT(no); CFLAGS="$ac_save_CFLAGS"; LIBS="$ac_save_LIBS")
+       AC_MSG_RESULT(no; try installing libcanberra-dev); CFLAGS="$ac_save_CFLAGS"; LIBS="$ac_save_LIBS")
 fi
 
 
@@ -4482,6 +4482,7 @@
   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'`
     AC_MSG_RESULT(yes)
   else
     AC_MSG_RESULT(no)