libaio: disable SSP completely, it's unnecessary for this pkg.

srcpkgs/libaio/template

@@ -1,7 +1,7 @@
 # Template file for 'libaio'
 pkgname=libaio
 version=0.3.110
-revision=1
+revision=2
 build_style=gnu-makefile
 short_desc="The Linux-native asynchronous I/O facility (aio) library"
 maintainer="Juan RP <xtraeme@gmail.com>"
@@ -10,6 +10,9 @@ homepage="http://lse.sourceforge.net/io/aio.html"
 distfiles="${DEBIAN_SITE}/main/liba/$pkgname/${pkgname}_${version}.orig.tar.gz"
 checksum=e019028e631725729376250e32b473012f7cb68e1f7275bfc1bbcdd0f8745f7e
 
+pre_build() {
+	CFLAGS="${CFLAGS/-fstack-protector-strong/}"
+}
 do_install() {
 	make prefix=${DESTDIR}/usr install
 }