| From 5c3d66378c7ff60ca11a875aa4aa6f8a8529d43a Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Fri, 20 Feb 2015 09:40:59 +0000 |
| Subject: [PATCH] export CPP |
| |
| The OE environment sets and exports CPP as being the target gcc. When |
| building gcc-cross-canadian for a mingw targetted sdk, the following can be found |
| in build.x86_64-pokysdk-mingw32.i586-poky-linux/build-x86_64-linux/libiberty/config.log: |
| |
| configure:3641: checking for _FILE_OFFSET_BITS value needed for large files |
| configure:3666: gcc -c -isystem/media/build1/poky/build/tmp/sysroots/x86_64-linux/usr/include -O2 -pipe conftest.c >&5 |
| configure:3666: $? = 0 |
| configure:3698: result: no |
| configure:3786: checking how to run the C preprocessor |
| configure:3856: result: x86_64-pokysdk-mingw32-gcc -E --sysroot=/media/build1/poky/build/tmp/sysroots/x86_64-nativesdk-mingw32-pokysdk-mingw32 |
| configure:3876: x86_64-pokysdk-mingw32-gcc -E --sysroot=/media/build1/poky/build/tmp/sysroots/x86_64-nativesdk-mingw32-pokysdk-mingw32 conftest.c |
| configure:3876: $? = 0 |
| |
| Note this is a *build* target (in build-x86_64-linux) so it should be |
| using the host "gcc", not x86_64-pokysdk-mingw32-gcc. Since the mingw32 |
| headers are very different, using the wrong cpp is a real problem. It is leaking |
| into configure through the CPP variable. Ultimately this leads to build |
| failures related to not being able to include a process.h file for pem-unix.c. |
| |
| The fix is to ensure we export a sane CPP value into the build |
| environment when using build targets. We could define a CPP_FOR_BUILD value which may be |
| the version which needs to be upstreamed but for now, this fix is good enough to |
| avoid the problem. |
| |
| RP 22/08/2013 |
| |
| Upstream-Status: Pending |
| |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| --- |
| Makefile.in | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/Makefile.in b/Makefile.in |
| index 36e369df6e7..c717903bb13 100644 |
| --- a/Makefile.in |
| +++ b/Makefile.in |
| @@ -149,6 +149,7 @@ BUILD_EXPORTS = \ |
| AR="$(AR_FOR_BUILD)"; export AR; \ |
| AS="$(AS_FOR_BUILD)"; export AS; \ |
| CC="$(CC_FOR_BUILD)"; export CC; \ |
| + CPP="$(CC_FOR_BUILD) -E"; export CPP; \ |
| CFLAGS="$(CFLAGS_FOR_BUILD)"; export CFLAGS; \ |
| CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \ |
| CXX="$(CXX_FOR_BUILD)"; export CXX; \ |