Spawn some more warnings

before they become an endangered species

diff --git a/configure.ac b/configure.ac
index 6cfa28ded885ef46ceecc0d3cbf63b1277b0b708..50b8bff2c59d5a3082510cdca91480bd6553c41b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -38,6 +38,7 @@ dnl Check for tools
 dnl
 AC_PROG_CC_C99
 AC_USE_SYSTEM_EXTENSIONS
+AC_DEFINE([_FORTIFY_SOURCE], 2, [Define to `2' to get glibc warnings.])
 AM_PROG_CC_C_O
 AC_PROG_CXX
 AC_PROG_CPP