From 193e5bdec4e7cd8be8586cdcc40c9fdcc8571b60 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Thu, 24 Sep 2015 21:44:09 -0400
Subject: build system: when set, verify that CC passes as a valid compiler.

---
 configure | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index f3eca4e..2e1357a 100755
--- a/configure
+++ b/configure
@@ -168,6 +168,10 @@ common_defaults()
 native_defaults()
 {
 	# toolchain
+	if [ x"$CC" != x ]; then
+		$CC -dM -E - < /dev/null > /dev/null || exit 2
+	fi
+
 	[ -z "$mb_native_cc" ] && mb_native_cc=$CC
 	[ -z "$mb_native_cc" ] && mb_native_cc='cc'
 	$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
-- 
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