![]() With the TARGET_PROPERTY generator expression you could do a lot of things e.g. Modern way to set compiler flags in cross-platform cmake project DEBUG or RELEASE configurations add_compile_options("$:/MDd>")įor Cmake, can you modify the release/debug compiler flags with `add_compiler_flags()` command? How do I add external test files to a cmake projectĭifferentiate e.g. Here are examples where I use generator expressions in my project:Ĭopying files next to the executable (in multi-configuration environments you can't just use variables like CMAKE_CURRENT_BINARY_DIR) add_custom_command(ĬMake post-build-event: copy compiled libraries add_custom_command( Or more generally any target property that the generator evaluates to mingle together the compiler/linker calls.The name and path of target outputs (mainly when cross-compiling and in multi-configuration environments).So basically the generator expressions are for everything only the generator could know: This translates to the following CMake lines:īuild_lib ( LIBNAME aodv # aodv module, which can later be linked to examples and modules with $ # Search for libraries in the install directory (e.g.CMake does first parse the CMakeLists.txt files in your project - named "Configuration Phase" - and then it generates your build environment - named "Generation Phase". ![]() Plus the lists of files ( module.source, headers.source and module_test.source). We can see the module name is aodv and it depends on the internet and the wifi libraries, extend () headers = bld ( features = 'ns3header' ) headers. source = # Tests encapsulating example programs should be listed here if ( bld. create_ns3_module_test_library ( 'aodv' ) aodv_test. NS3_WARNINGS_AS_ERRORS controls whether compiler warnings are treatedĪs errors and stop the build, or whether they are only warnings andĭef build ( bld ): module = bld. NS3_ASSERT and NS_LOG control whether the assert or logging macros In addition to setting compiler flags each build type also controls whether certain features are enabled or not: ns3 -build-profile The mapping of the ns3 build profiles into the CMake build types is the following: Equivalent build profiles To familiarize Waf users with CMake and how the options names changed. The summary with enabled feature shows both the release build type, along withīelow is a list of enabled modules and modules that cannot be built.Īt the end, notice we print the same commands from -dry-run. Notice that CCache is automatically used (if installed) for your convenience. wifi wimax Modules that cannot be built: brite click openflow visualizer - Configuring done - Generating done - Build files have been written to: /mnt/dev/tools/source/ns-3-dev/cmake-cache Finished executing the following commands: mkdir cmake-cache cd cmake-cache /usr/bin/cmake -DCMAKE_BUILD_TYPE=release -DNS3_NATIVE_OPTIMIZATIONS=OFF -DNS3_EXAMPLES=ON -DNS3_TESTS=ON -G Unix Makefiles. Tests : ON Threading Primitives : ON Modules configured to be built: antenna aodv applications bridge buildings config-store core csma csma-layout. Processing src/wifi - Processing src/wimax - Summary of optional ns-3 features: Build profile : release Build directory : /mnt/dev/tools/source/ns-3-dev/build. The CXX compiler identification is GNU 11.2.0 - The C compiler identification is GNU 11.2.0 - Detecting CXX compiler ABI info - Detecting CXX compiler ABI info - done - Check for working CXX compiler: /usr/bin/c++ - skipped - Detecting CXX compile features - Detecting CXX compile features - done. Precompiled headers are disabled by default. ns3 configure -d release -enable-examples -enable-tests - CCache is enabled. Evaluate generator expressions from the input content to produce the output content. Generate an output file for each build configuration supported by the current CMake Generator. Documentation for that command tells nothing about variables expansion. In the Tutorial and will not be detailed here. Actually, file (GENERATE) doesnt expand variables at all. General instructions on how to setup and use IDEs are available
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