On 08/07/2013 11:56 AM, Stephen Kelly wrote: > When cross-compiling with g++, the _CMAKE_TOOLCHAIN_PREFIX is set by > examining the name of the compiler in CMakeDetermineCXXCompiler.cmake.
Yes, that's a hack specific to GNU conventions. As you pointed out later in your message there is no Clang handling either. > However, currently the CMAKE_CXX_COMPILER_TARGET needs to be of the form > gcc_nto<arch>, not just nto<arch>, so the QNX specific code in > CMakeDetermineCXXCompiler.cmake would have to account for that, and other > possible suffixes (the version is optional): > > stephen@hal:~/bbndk/host_10_1_0_132/linux/x86/usr/bin$ ./QCC -V > cc: targets available in > /home/stephen/bbndk/host_10_1_0_132/linux/x86/etc/qcc: > 4.6.3,gcc_ntoarmv7le_gpp > 4.6.3,gcc_ntox86_gpp > 4.6.3,gcc_ntox86_cpp > 4.6.3,gcc_ntoarmv7le_cpp-ne > 4.6.3,gcc_ntoarmv7le > 4.6.3,gcc_ntox86_cpp-ne > 4.6.3,gcc_ntox86 (default) > 4.6.3,gcc_ntoarmv7le_cpp > > Can I extend the CMakeDetermineCXXCompiler.cmake with handling for that? This is tied to the revert of 2d9ec1da which dropped the CMAKE_<LANG>_COMPILER_TARGET variables prior to release: http://thread.gmane.org/gmane.comp.programming.tools.cmake.devel/7705 I think both that variable and the toolchain prefix selection can be brought back in together. However, the variable will have to be introduced in a way that addresses the concerns raised in the above-linked thread. -Brad -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
