On Fri, 2019-05-31 at 19:07 +0200, Steven Truppe wrote: > The problem is the line: > if(${_var} MATCHES "^WITH_LIB_([AZaz]+)$") > cmake_print_variables(CMAKE_MATCH_0) > > doesn't print me any output ...
There are two problems with the following line: if(${_var} MATCHES "^WITH_LIB_([AZaz]+)$") The first argument should be _var instead of ${_var}. See the if() documentation for more information: https://cmake.org/cmake/help/v3.14/command/if.html#variable-expansion The second problem is your regex. I'm guessing you were trying to do: ^WITH_LIB_([A-Za-z]+)$ Notice the hyphens in the character class brackets. This will get you every character from A to Z and from a to z. Using just [AZaz] will only match A, Z, a, and z (none of the letters in between.) So, if you use the following instead: if(_var MATCHES "^WITH_LIB_([A-Za-z]+)$") cmake_print_variables(CMAKE_MATCH_0) this should do what you want. Kyle -- 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: https://cmake.org/mailman/listinfo/cmake