Cmake set variable4/7/2023 The check in CMakeList.txt is failing because the WIRESHARK_TARGET_PLATFORM variable is incorrect ("win32"). Example set(myvariable 'the value is a string') By default, a local variable is only defined in the current directory and any subdirectories added through the addsubdirectory command. Starting with CMake 2.8.0, we extended the setproperty command to enable adding properties to CMake CACHE variables. With CMake 2.8 and later, it is now possible to present this elegantly with a drop-down combo box appearing for each such cache entry in cmake-gui. You can use this section in the same way that you might use the CMakeGUI to view a list of all the CMake variables available to edit. Theyre passed to CMake at build time, and override whatever values are in the CMakeLists.txt file. The CXX compiler identification is MSVC 6.0 Similar to a list of enum values for you C -heads. CMake variables and cache These settings enable you to set CMake variables and save them in CMakeSettings.json. It should be something like: - The C compiler identification is MSVC 6.0 The CXX compiler identification is unknown If the provided value doesnt name a generator known by CMake, the internal default is used. Specifies the CMake default generator to use when no generator is supplied with -G. Indicates which set of debugging default values to use. Similarly, if you need to specify additional compiler or linker options, you can set the CFLAGS, CXXFLAGS, and LDFLAGS environment variables sivank Le 2 juin 2014 à 18:52, Evan Huus a écrit : Im trying to get an out-of-tree cmake build set up on a brand new mac Package: cmake A cross-platform open-source make system txt file itself txt file itself. Its initial value is taken from the calling process environment. Environment variables defined in CMakeSettings.json can also be used in launch.vs.json using the syntax. This bit of output is odd, not sure what that means: - The C compiler identification is unknown Describes how to use Visual Studio to configure CMake debugger settings. Environment initialized for: 'å4'Ĭ:\Program Files (x86)\Microsoft Visual Studio\2019\Community>set VSCMD_ARG_TGT_ARCHĬ:\Program Files (x86)\Microsoft Visual Studio\2019\Community>cd \Users\WDAGUtilityAccount\Desktop\wireshark\wsbuild64Ĭ:\Users\WDAGUtilityAccount\Desktop\wireshark\wsbuild64>dirÄirectory of C:\Users\WDAGUtilityAccount\Desktop\wireshark\wsbuild64Ĭ:\Users\WDAGUtilityAccount\Desktop\wireshark\wsbuild64>set WIRESHARK_BASE_DIR=C:\Users\WDAGUtilityAccount\Desktop\wiresharkĬ:\Users\WDAGUtilityAccount\Desktop\wireshark\wsbuild64>set QT5_BASE_DIR=C:\Qt\Qt5.12.1\5.12.1\msvc2017_64Ĭ:\Users\WDAGUtilityAccount\Desktop\wireshark\wsbuild64>cmake -G "Visual Studio 16 2019" -A å4. Lets try to cross compile a Hello World example in C and running it on an Acme board The GNU Compiler Collection - cross compiler for ARM64 target MX8M HummingBoard Pulse and CuBox-Pulse In case of using CMake, it will inject the appropriate toolchain file and set up the necessary CMake variables 2 binutils: 2 2 binutils: 2. ** Copyright (c) 2020 Microsoft Corporation Environment variables may differ from where CMake generated the make environment and when the the make files are put to use. So it could get important to set some variables before those commands are used. Generate a file, based on the specific build configuration. A lot of variables used by CMake are set with the project() and enablelanguage() calls. For setting, SET(FOO "foo") would be used in CMake.** Visual Studio 2019 Developer Command Prompt v16.6.5 environment variables SET in the CMakeLists.txt only take effect for cmake itself (configure-time), so you cannot use this method to set an environment variable that a custom command might need (build-time). Define variables that the buildsystem will use in this directory, and in its subdirectories. set(MyStringWithVar "Some other Text: $, where FOO is some other variable.> When building from UNIX Makefiles I can set the variable at the console > and then 'make' and it will work. CMake checks this variable when selects a default compiler. Set CC environment variable ( CXX for C compiler). That way CMake will use this compiler instead of default one and on the project () call it will adjust all flags for the specified compiler. When writing CMake scripts there is a lot you need to know about the syntax and how to use variables in CMake. In other words, CMake is not > setting this variable as part of the build (although it did set them > when it went to test the compiler, because qcc passed the compiler > test). Pass -DCMAKECCOMPILER to cmake when configure the project.
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