From fe07617f803ffd24d02bc9645112caf4f5f9f54a Mon Sep 17 00:00:00 2001 From: Meador Inge Date: Tue, 25 Mar 2014 21:45:41 +0000 Subject: [PATCH] [configure/make] Propagate names of build host tools when making BuildTools When cross-compiling LLVM itself the configure/make scripts get confused when creating the needed build host tools. For example, building and configuring like: CC_FOR_BUILD='i686-pc-linux-gnu-gcc' CXX_FOR_BUILD='i686-pc-linux-gnu-g++' CXX='i686-mingw32-g++' CC='i686-mingw32-gcc' LD='i686-mingw32-ld' /scratch /meadori/llvm-trunk/src/trunk/configure --host=i686-mingw32 CC_FOR_BUILD='i686-pc-linux-gnu-gcc' CXX_FOR_BUILD='i686-pc-linux-gnu-g++' CXX='i686-mingw32-g++' CC='i686-mingw32-gcc' LD='i686-mingw32-ld' make causes the following build break: checking whether the C compiler works... configure: error: cannot run C compiled programs. If you meant to cross compile, use `--host'. See `config.log' for more details. The 'config.log' shows that i686-mingw32-gcc is being used to create executables for the build host. This patch fixes the problem by propogating the names of the build host tools via BUILD_* when configuring/making BuildTools. Original patch by Ekaterina Sanina. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204760 91177308-0d34-0410-b5e6-96231b3b80d8 --- Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Makefile b/Makefile index 29653acf993..2b9468af205 100644 --- a/Makefile +++ b/Makefile @@ -112,6 +112,11 @@ cross-compile-build-tools: cd BuildTools ; \ unset CFLAGS ; \ unset CXXFLAGS ; \ + AR=$(BUILD_AR) ; \ + AS=$(BUILD_AS) ; \ + LD=$(BUILD_LD) ; \ + CC=$(BUILD_CC) ; \ + CXX=$(BUILD_CXX) ; \ unset SDKROOT ; \ unset UNIVERSAL_SDK_PATH ; \ configure_opts= ; \