How to change makefile generator for CMake? - c++

Question

Asked this question:
CMake cannot indentify path to compiler mentioned by set(CMAKE_C_COMPILER "path") rule
received an incorrect rules order response(it was obviously correct).
Aplied changes and tried again:
cmake .
output:
-- The C compiler identification is GNU 9.2.0
-- The CXX compiler identification is GNU 9.2.0
-- Check for working C compiler: C:/Strawberry/c/bin/gcc.exe
CMake Error: Generator: execution of make failed. Make command was: nmake /nologo cmTC_fc6d3\fast &&
-- Check for working C compiler: C:/Strawberry/c/bin/gcc.exe - broken
But I need not nmake but mingw make file ,found this topic:
CMake Error : execution of make failed on Windows
The 100% same problem I have .Tried provided solution:
You need to specify a generator in CMake command line like -G "MinGW
Makefiles" and - depending on how many compilers you have installed -
also the full paths to the compilers.
cmake -G "MinGW Makefiles"
output:
CMake Warning:
No source or binary directory provided. Both will be assumed to be the
same as the current working directory, but note that this warning will
become a fatal error in future CMake releases.
CMake Error: Error: generator : MinGW Makefiles
Does not match the generator used previously: NMake Makefiles
Either remove the CMakeCache.txt file and CMakeFiles directory or choose a different binary directory.
and next cmake . output gives (after deleting CMakeCache.txt file and CMakeFiles directory as mentioned above):
-- The C compiler identification is GNU 9.2.0
-- The CXX compiler identification is GNU 9.2.0
-- Check for working C compiler: C:/Strawberry/c/bin/gcc.exe
CMake Error: CMake was unable to find a build program corresponding to "NMake Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/CMakeTestCCompiler.cmake:44 (try_compile):
Failed to configure test project build system.
Call Stack (most recent call first):
CMakeLists.txt:9 (project)
-- Configuring incomplete, errors occurred!
See also "CMakeFiles/CMakeOutput.log".
CMake Error: Generator: execution of make failed. Make command was: cmTC_4b6e5/fast &&
-- Check for working C compiler: C:/Strawberry/c/bin/gcc.exe - broken
The 3 things i cannot understand:
How to ... specify ... the full paths to the compilers or needed source or binary directory.
Why compilers are connected to make.exe in any way.
Why CMAKE_MAKE_PROGRAM is not set if there is proper rule.
Changing rules order :
set( CMAKE_MAKE_PROGRAM FORCE ) set(CMAKE_C_COMPILER ) set(CMAKE_CXX_COMPILER ) and
set(CMAKE_C_COMPILER ) set(CMAKE_CXX_COMPILER ) set( CMAKE_MAKE_PROGRAM FORCE ) has the same result after call.
If I remove set( CMAKE_MAKE_PROGRAM ) rule configuring with CMake GUI is possible but with cmd manual cmake . call is not .Same output as provided above.
Inside CMakeCache.txt generated by CMake GUI call's are lines :
//Path to a program.
CMAKE_MAKE_PROGRAM:FILEPATH=C:/Strawberry/c/bin/mingw32-make.exe
so for it was possible to find mingw32-make.exe and path provided for manual call is also right.
My CMakeLists.txt:
cmake_minimum_required(VERSION 3.17.1)
#set(CMAKE_MAKE_PROGRAM C:/Strawberry/c/bin/make.exe FORCE )
set( CMAKE_MAKE_PROGRAM C:/Strawberry/c/bin/mingw32-make.exe FORCE )
set(CMAKE_C_COMPILER "C:/Strawberry/c/bin/gcc.exe")
set(CMAKE_CXX_COMPILER "C:/Strawberry/c/bin/g++.exe")
project("Client")
enable_testing()
set(CMAKE_CXX_FLAGS "-std=c++17 " )
add_executable(Client
main.cpp
client.cpp
client.h
logmsg.cpp
includes.h
)
target_link_libraries(Client wsock32 ws2_32)
add_test(NAME test COMMAND Client )