The following issue has been SUBMITTED. ====================================================================== http://public.kitware.com/Bug/view.php?id=15102 ====================================================================== Reported By: David Pajak Assigned To: ====================================================================== Project: CMake Issue ID: 15102 Category: CMake Reproducibility: always Severity: major Priority: normal Status: new ====================================================================== Date Submitted: 2014-08-23 04:52 EDT Last Modified: 2014-08-23 04:52 EDT ====================================================================== Summary: Eclipse CDT generator produces incorrect CDT indexer configuration when calling with any custom compiler switches Description: Hi Guys,
I found a problem with Eclipse CDT project generator. Specifically, the CMake is unable to create a completely filled include/symbol list for the CDT indexer when using GCC flags that modify the built-in preprocessor symbol list. Examples are "-std=c++11" (enable C++11 support) or "-msse4.1" (enable SSE4.1 SIMD instruction set). I wrote a self-containing example that exposes the issue. For some reason, CMake does not add compile options that I specify through target_compile_options() to the argument list for the GCC symbol query call. It does however include the definitions added via add_definitions(). I think this should be fixed. One way to walk around it is to pass the compiler flags to GCC via CMAKE_CXX_COMPILER_ARG1 which is used during symbol query. But this is A) hacky B) seem to affect all other files in the project C) only allows to specify *a single* compiler switch. The C) is particularly weird... Steps to Reproduce: 1. Download the archive attached to the bug report 2. Set up an Eclipse project in the directory where CMakeLists.txt is, e.g., "cmake -G"Eclipse CDT4 - Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_ECLIPSE_VERSION=4.3" 3. Import the project to Eclipse 4. Look at the indexer failing in two main points: A) Unrecognized std::function<> -- this template is in C++11 -- it is not visible because CMake does not pass -std=c++11 to the compiler when dumping the preprocessor variables for the indexer. B) Unrecognized SIMD intrinsics despite #include <smmintrin.h> -- same as above -- "-msse4.1" switch has not been passed to the compiler during query. The indexer is missing (normally automatically generated) __SSE4__, __SSE4_1__, __SSSE3__, __SSE3__ keywords, and cannot correctly include header with intrinsics. Both problems are also exposed when inspecting what symbols were actually imported when creating the project. See "C/C++ Include Paths and Symbols" in Project properties... Additional Information: I use Eclipse Luna (4.4), but I don't think it really matter for this bug. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2014-08-23 04:52 David Pajak New Issue 2014-08-23 04:52 David Pajak File Added: test.tar.bz2 ====================================================================== -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers