search for: cmake_cxx_flags

llvm/cmake/modules/HandleLLVMStdlib.cmake specifies "-stdlib=libc++" for CMAKE_CXX_FLAGS when LLVM_ENABLE_LIBCXX and CXX_SUPPORTS_STDLIB. From what I can see this is a flag intended for the linker and not the compiler. I'd like to submit a change to delete CMAKE_CXX_FLAGS from this append() but I wanted to check in with the list to see if that makes sense or if there are other...

Hello, It looks like compiler-rt CMake scripts don't take CMAKE_CXX_FLAGS into account. This is because clang_compile and clang_link_shared functions call the newly-built compiler directly, and they don't add those flags. Using CMAKE_CXX_FLAGS is necessary on systems where the C++11-enabled libstdc++ is installed not in the default location. For example, the CentO...

...3. On Sun, Mar 23, 2014 at 10:03 PM, Alexey Samsonov <samsonov at google.com>wrote: > Hi Dmitri, > > On Sat, Mar 22, 2014 at 11:50 PM, Dmitri Gribenko <gribozavr at gmail.com>wrote: > >> Hello, >> >> It looks like compiler-rt CMake scripts don't take CMAKE_CXX_FLAGS >> into account. This is because clang_compile and clang_link_shared >> functions call the newly-built compiler directly, and they don't add >> those flags. >> > > Indeed. > > >> >> Using CMAKE_CXX_FLAGS is necessary on systems where the C++11-en...

...;) set(CMAKE_BUILD_TYPE Debug) endif() if(APPLE) set(CMAKE_MACOSX_RPATH ON) set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -undefined dynamic_lookup") set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -undefined dynamic_lookup") endif() set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wno-unused-parameter") # While just setting LLVM_DIR will make find_package work, you need to # add it to CMAKE_MODULE_PATH if you want to include AddLLVM, e.g., if # you want to use add_ll...

Hey Pete, I also tried CMAKE_CXX_FLAGS_RELEASE with the same effect. On Mon, Jul 20, 2015, at 09:34 AM, Pete Cooper wrote: > Hi Adrian > > I’m not sure if the CMAKE_CXX_FLAGS is used in LLVM. We have our own > flags for different configurations. I don’t remember if our ones inherit > from CMAKE_CXX_FLAGS or override i...

...ome other people as > well? > +llvmdev Oh, sure. Please cc' llvmdev mailing list for the discussion of sanitizers, especially when discussing portability issues, as more people might be interested in that or share their experience. > On FreeBSD 9.2 I add a couple custom options to CMAKE_CXX_FLAGS in >> order to let clang know which header set it should use, like that: >> >> CC=clang CXX=clang++ cmake \ >> -DLLVM_TARGETS_TO_BUILD=X86 \ >> -DCMAKE_CXX_FLAGS="-I/usr/include/c++/4.8.1 >> -I/usr/include/c++/4.8.1/x86_64-unknown-freebsd9.2" >&g...

I regularly use '-DCMAKE_CXX_FLAGS' when configuring CLang/LLVM to distinguish my builds (Alpha/Beta/Final) or to build custom versions, usually by adding additional '-D' flags, but I discovered I had to add the ':STRING' qualifier to it when invoking 'cmake'. With 'gmake' this is equivalent to &...

...cf3afb822df6a6e/CMakeLists.txt#L207 > > Everything is correctly built with -fno-omit-frame-pointer. > > Any suggestion why it would be the case? > > Thanks, > Adrian > > On Mon, Jul 20, 2015, at 01:39 PM, Martin J. O'Riordan wrote: > > I regularly use '-DCMAKE_CXX_FLAGS' when configuring CLang/LLVM to > > distinguish my builds (Alpha/Beta/Final) or to build custom versions, > > usually by adding additional '-D' flags, but I discovered I had to add > > the ':STRING' qualifier to it when invoking 'cmake'. With 'gmak...

...gt; > if(APPLE) > set(CMAKE_MACOSX_RPATH ON) > set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -undefined > dynamic_lookup") > set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -undefined > dynamic_lookup") > endif() > > set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") > > set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra > -Wno-unused-parameter") > > # While just setting LLVM_DIR will make find_package work, you need to > # add it to CMAKE_MODULE_PATH if you want to include AddLLVM, e.g.,...

...FLAGS. But Although I see that, under my platform, almost all the the files inside LLVM and Clang are compiled with -fno-rtti, the llvm-config --cxxflags does not give the correct flags that those files are compiled. The following are something I thought is valuable to mention here: As I probe the CMAKE_CXX_FLAGS of some of the CMakeLists.txt, I found there is a "baseline" of this variable, mine is "-fPIC -fvisibility-inlines-hidden". It means, no matter how a single CMakeLists.txt changes CMAKE_CXX_FLAGS, it will remain the same when it goes into another CMakeLists.txt. Inside the llvm...

Hello LLVM, When building LLVM/Clang (debug build), linking takes too long. I notice that LTO is enabled now and guess that's to blame. Is there a CMAKE config option to disable LTO linking? I can't seem to find anything. Thanks, -steve

'-DCMAKE_CXX_FLAGS=-fno-omit-frame-pointer -Wno-maybe-uninitialized -fPIC -fPIE' -- The C compiler identification is GNU 4.8.1 -- The CXX compiler identification is GNU 4.8.1 -- Check for working C compiler: /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc -- Check for working C compiler: /hom...

On Tue, Apr 1, 2014 at 1:23 PM, Ivan A. Kosarev <ivan at ivan-labs.com> wrote: > Hi Alexey, > > > On 03/31/2014 09:58 PM, Alexey Samsonov wrote: > > On FreeBSD 9.2 I add a couple custom options to CMAKE_CXX_FLAGS in order > to let clang know which header set it should use, like that: > >> >>> CC=clang CXX=clang++ cmake \ >>> -DLLVM_TARGETS_TO_BUILD=X86 \ >>> -DCMAKE_CXX_FLAGS="-I/usr/include/c++/4.8.1 >>> -I/usr/include/c++/4.8.1/x86_64-unknown-freebs...

Hi all. I want to use llvm in my project and I want to make llvm a git submodule in my project. http://llvm.org/docs/CMake.html#embedding-llvm-in-your-project At this in the documentation it claims to describe how to embed llvm into a project. I tried it that way but it doesn't work, because there isn't any findLLVM.cmake in the llvm/cmake/modules directory anymore (i don't

...@ endif() if(NOT WIN32 AND NOT CYGWIN) # MinGW warns if -fvisibility-inlines-hidden is used. check_cxx_compiler_flag("-fvisibility-inlines-hidden" SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG) - append_if(SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG "-fvisibility-inlines-hidden" CMAKE_CXX_FLAGS) + + # The flag also hides inlines from explicit template instantiations, which + # leads to link failures in debug builds at least with gcc 5.3.1 and + # both GNU ld 2.26 or gold 1.11. + if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG") + append_if(SUPPORTS_FVISIBILITY_INLINES_...

...#39;m often busy. You're better off using the development mailing list for questions such as this, and I've moved the conversation there. > I have a problem compiling compiler-rt on MacOS with libc++. For this to > work, the flag -mmacosx-version-min=10.7 is required, so I use: > CMAKE_CXX_FLAGS:STRING=-mmacosx-version-min=10.7 -stdlib=libc++ > > However, around line 140, the CMakeLists.txt of compiler-rt contains: > if(APPLE) > list(APPEND SANITIZER_COMMON_CFLAGS -mmacosx-version-min=10.5) > endif() > > Now, when building with clang, the minimal minimal version is u...

Hello everyone, I'm trying to compile LLVM and Clang into LLVM IR with debug info. I know that clang++ -g2 -S -emit-llvm <filename> does this, but I'm unfamiliar with CMake. I tried changing CMAKE_CXX_FLAGS in CMakeCache.txt to "clang++ -g2 -S -emit-llvm," "-g2 -S -emit-llvm," and "-emit-llvm," but everything I tried resulted in a failed build, and/or .o files that didn't look like LLVM IR files when I opened them up. Where is the right place to pass these flags in?...

...MakeFiles/clangStaticAnalyzerCore.dir/M > emRegion.cpp.o > Linking CXX shared library ../../../../lib/liblibclang.so I am suspicious, I guess you might not enable optimization on cmake build. 1) make sure with "make VERBOSE=1" 2) make sure you would set proper CMAKE_BUILD_TYPE, or CMAKE_CXX_FLAGS. ...Takumi

...development mailing >> list for questions such as this, and I've moved the conversation there. >> >> >>> I have a problem compiling compiler-rt on MacOS with libc++. For this to >>> work, the flag -mmacosx-version-min=10.7 is required, so I use: >>> CMAKE_CXX_FLAGS:STRING=-mmacosx-version-min=10.7 -stdlib=libc++ >>> >>> However, around line 140, the CMakeLists.txt of compiler-rt contains: >>> if(APPLE) >>> list(APPEND SANITIZER_COMMON_CFLAGS -mmacosx-version-min=10.5) >>> endif() >>> >>> Now, wh...

...oolchain/llvm-build > > Do you need more input? > > Thanks! > I found in "http://llvmweekly.org/issue/110" [ llvm.src/cmake/modules/HandleLLVMOptions.cmake ] option(LLVM_ENABLE_LTO "Enable link-time optimization" OFF) append_if(LLVM_ENABLE_LTO "-flto" CMAKE_CXX_FLAGS CMAKE_C_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS) Searching for... $ grep LLVM_ENABLE_LTO llvm/cmake/modules/HandleLLVMOptions.cmake [ OUTPUT EMPTY ] ...gives no output. So, LLVM_ENABLE_LTO is not available for LLVM/Clang v3.8.0?! Hmm, maybe I can backport (or git cherry-pick) SV...