From ff7a54609beb929d70c3243d03b15eb29b6fb5cb Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 19 Jul 2019 12:35:02 +0000
Subject:  Accept raw external $CC for cross-compiling

---
 configure | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure b/configure
index b9dc50e..c0042bb 100755
--- a/configure
+++ b/configure
@@ -358,6 +358,13 @@ else
   cross=
 fi
 echo "Checking for C compiler..."
+trycc ${CC}
+if test -n "$cross" && test -n "$CC_AUTO" ; then
+  b=`basename "$CC"`
+  if test "${b}" = "${b##$cross}" ; then
+    echo "Warning: compiler $CC is declared as a cross-compiler for target $target but does not start with prefix $cross" 1>&2
+  fi
+fi
 trycc ${cross}${CC}
 trycc ${cross}gcc
 trycc ${cross}clang
-- 
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