![]() ![]() The LINKFLAGS property, managed as a string, can be used to add extra flags to the link step of a target. I am editing a CMakeLists.txt file made by someone else. Static libraries need to use STATICLIBRARYOPTIONS or STATICLIBRARYFLAGS properties. One use is to set flags from the command line in order to compile the program in different ways. Additional flags to use when linking this target if it is a shared library, module library, or an executable. FWIW, manually manipulating the CMAKECXXFLAGS variable is. So, you may want to enable all of them, then remove them individually to see which one (or ones) affects performance. If you have any problems with the registration process or your account login, please contact us.C++ preprocessor directives are useful for many things. Welcome to Stack Overflow Note, linked GCC page describes that more flags are enabled with each optimization level ( -O1 adds some flags, -O2 adds more flags, etc). ![]() Registration is fast, simple and absolutely free so please, join our community today! This variable is initialized by the first project () or enablelanguage () command called in a project when a. Typical values include Debug, Release, RelWithDebInfo and MinSizeRel, but custom build types can also be defined. This site will remain online in read-only mode during the transition and into the foreseeable future. ![]() By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Specifies the build type on single-configuration generators (e.g. Attention: is deprecated as of August the 11th, 2023. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. If you want to compile and link for 32 bit using cmake use this for creating libraries and binaries: Creating libraries: addlibrary (mylib SHARED mysource.c) settargetproperties (mylib PROPERTIES COMPILEFLAGS '-m32' LINKFLAGS '-m32') creating executables: addexecutable (mybin sources. If you are looking for information about Qt related issue - register and post your question. Over 90 percent of questions asked here gets answered. Thus, to forward your intended link flags to the linker, you must use the LINKER: prefix. In context: mkdir -p release cd release cmake -DCMAKEBUILDTYPERelease -DCMAKEEXPORTCOMPILECOMMANDSON -G Ninja. It doesn't accumulate values added with targetcompileoptions - the latter options are come in form of target's properties. You can also get cmake to produce a json file of all commands to be run with: -DCMAKEEXPORTCOMPILECOMMANDSON. targetlinkoptions (mytgt PRIVATE 'LINKER:-as-needed') Note that CMake always passes flags to the configured compiler. 'Why CMAKECFLAGS and CFLAGS are printed as they were undefined' - Variable CMAKECFLAGS is just empty in your case. In response to your first comment, if instead of using SETCOMPILEFLAG you could try the COMPILEFLAGS option to SETTARGETPROPERTIES. This is how you add linker flags to a target in modern CMake (3.13+): mytgt can be an executable, library, or module. setsourcefilesproperties (foo.cpp PROPERTIES COMPILEFLAGS -Wno-effc++) This should have the effect of adding -Wno-effc++ after -Weffc++ in the compiler command, and the latter setting. You should be able to countermand the -Weffc++ flag for foo.cpp by doing. Qt Centre is a community site devoted to programming in C++ using the Qt framework. its really frustrating there is no good documentation for cmake: (. These flags will be added to the list of compile flags when this source file builds. tl dr: there are two acceptable ways of doing this. Select the forum that you want to visit from the selection below. ![]() How do I include -lpthread (or other g++ args) in a CMake project?īefore you can post: click the register link above to proceed. ![]()
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