ref: 871bd23e4c41bb0fb94b72832b270766de540dea
parent: 44d35f7b257cc3e737a38eb9537d57c3e0479885
author: Alexis Ballier <alexis.ballier@gmail.com>
date: Sat May 12 11:45:13 EDT 2012
Allow target autodetection to work when cross-compiling. Allow CHOST to override the gcc -dumpmachine output. This allows to use the target autodetection code when cross compiling by setting the CHOST variable. On Gentoo, we would like to support easy cross-compilation, and for libvpx this would basically mean copying the code in build/make/configure.sh to setup the right --target option. It seems a lot easier to let it guess by itself. Another option I considered was using CROSS-gcc instead but this would not work for our multilib setups: They use gcc -m32 to build 32bits binaries and gcc -m32 -dumpmachine will output the 64bits version, which would then make libvpx wrongly believe it is building for a 64bits architecture. Change-Id: I05a19be402228f749e23be7473ca53ae74fd2186
--- a/build/make/configure.sh
+++ b/build/make/configure.sh
@@ -549,7 +549,7 @@
process_common_toolchain() {if [ -z "$toolchain" ]; then
- gcctarget="$(gcc -dumpmachine 2> /dev/null)"
+ gcctarget="${CHOST:-$(gcc -dumpmachine 2> /dev/null)}"# detect tgt_isa
case "$gcctarget" in
--
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