configure.inc: fix ARCH detection

diff --git a/support/configure.inc b/support/configure.inc
index b72a39e932a1021709fc281355c09c9eb90535de..831d45972c5d1803215462483dc6eb337df363d6 100755 (executable)
--- a/support/configure.inc
+++ b/support/configure.inc
@@ -14,6 +14,7 @@ CONFIGURE_ARGS="$*"
 # System setup
 [ -z "$PLATFORM" ] && PLATFORM=$(uname -s | tr "[:upper:]" "[:lower:]")
 [ -z "$CPU"      ] && CPU=generic
+[ -z "$ARCH"     ] && ARCH=$(CC -dumpmachine | cut -d '-' -f 1)
 [ -z "$ARCH"     ] && ARCH=$(uname -m)
 [ -z "$OSENV"    ] && OSENV=posix
 [ -z "$PYTHON"   ] && PYTHON=python