configure: Add _GNU_SOURCE flag to linux and debian presets to enable Linux fallocate()
--- a/configure Sat Jul 28 22:37:24 2012 +0200
+++ b/configure Sun Jul 29 01:37:15 2012 +0200
@@ -96,6 +96,7 @@
LUA_SUFFIX_SET=yes
LUA_INCDIR=/usr/include/lua5.1;
LUA_INCDIR_SET=yes
+ CFLAGS="$CFLAGS -D_GNU_SOURCE"
fi
if [ "$OSTYPE" = "macosx" ]
then LUA_INCDIR=/usr/local/include;
@@ -110,6 +111,7 @@
LUA_LIBDIR=/usr/local/lib
LUA_LIBDIR_SET=yes
CFLAGS="-Wall -fPIC"
+ CFLAGS="$CFLAGS -D_GNU_SOURCE"
LDFLAGS="-shared"
fi
if [ "$OSTYPE" = "freebsd" -o "$OSTYPE" = "openbsd" ]