cmake fails in wsl

[oomek]

I've been trying to cross-compile demos in WSL on Windows 10 using using MXE environment. When I run cmake everything seems fine except 2 errors:

oomek@radek-pc:/mnt/d/documents/gitkraken/freetype-gl/build$ x86_64-w64-mingw32.static-cmake ..
== Using MXE wrapper: /opt/mxe/usr/bin/x86_64-w64-mingw32.static-cmake
     - cmake version 3.15.4
     - warnings for unused CMAKE_POLICY_DEFAULT variables can be ignored
== Using MXE toolchain: /opt/mxe/usr/x86_64-w64-mingw32.static/share/cmake/mxe-conf.cmake
== Using MXE runresult: /opt/mxe/usr/share/cmake/modules/TryRunResults.cmake
== Adding "-DCMAKE_BUILD_TYPE=Release"
loading initial cache file /opt/mxe/usr/share/cmake/modules/TryRunResults.cmake
-- The C compiler identification is GNU 5.5.0
-- The CXX compiler identification is GNU 5.5.0
-- Check for working C compiler: /opt/mxe/usr/x86_64-pc-linux-gnu/bin/x86_64-w64-mingw32.static-gcc
-- Check for working C compiler: /opt/mxe/usr/x86_64-pc-linux-gnu/bin/x86_64-w64-mingw32.static-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /opt/mxe/usr/x86_64-pc-linux-gnu/bin/x86_64-w64-mingw32.static-g++
-- Check for working CXX compiler: /opt/mxe/usr/x86_64-pc-linux-gnu/bin/x86_64-w64-mingw32.static-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Building for Windows target system
-- Building with GNU compiler
-- Looking for stdbool.h
-- Looking for stdbool.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for math.h
-- Looking for math.h - found
-- Looking for cos in m
-- Looking for cos in m - found
-- Looking for cos
-- Looking for cos - found
-- Looking for fabs
-- Looking for fabs - found
-- Looking for floor
-- Looking for floor - found
-- Looking for fmod
-- Looking for fmod - found
-- Looking for pow
-- Looking for pow - found
-- Looking for roundf
-- Looking for roundf - found
-- Looking for round
-- Looking for round - found
-- Looking for sin
-- Looking for sin - found
-- Looking for sqrt
-- Looking for sqrt - found
-- Looking for tan
-- Looking for tan - found
-- Looking for M_PI
-- Looking for M_PI - found
-- Found OpenGL: opengl32
== Custom MXE File: /opt/mxe/usr/share/cmake/modules/FindFreetype.cmake
-- Found PkgConfig: /opt/mxe/usr/bin/x86_64-w64-mingw32.static-pkg-config (found version "0.28")
-- Checking for module 'freetype2'
--   Found freetype2, version 23.1.17
-- Found GLEW: /opt/mxe/usr/x86_64-w64-mingw32.static/lib/libGLEW.a
-- Found Doxygen: /usr/bin/doxygen (found version "1.8.13") found components:  doxygen missing components:  dot
-- Could NOT find AntTweakBar (missing: ANT_TWEAK_BAR_INCLUDE_PATH ANT_TWEAK_BAR_LIBRARY)
-- Found Fontconfig: /opt/mxe/usr/x86_64-w64-mingw32.static/lib/libfontconfig.a
CMake Error at /opt/mxe/usr/x86_64-pc-linux-gnu/share/cmake-3.15/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
  Could NOT find ImageMagick (missing: ImageMagick_compare_EXECUTABLE)
Call Stack (most recent call first):
  /opt/mxe/usr/x86_64-pc-linux-gnu/share/cmake-3.15/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
  /opt/mxe/usr/x86_64-pc-linux-gnu/share/cmake-3.15/Modules/FindImageMagick.cmake:278 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  tests/CMakeLists.txt:6 (find_package)

I've built MXE's dependencies, including ImageMagick but it fails anyway. Also there is no AntTweakBar in MXE. Any clues?

[oomek]

Ok, I've succeeded generating makefiles by:
x86_64-w64-mingw32.static-cmake -Dfreetype-gl_BUILD_TESTS=OFF ..
Not sure if it's required though, because now when I try to make I'm getting linking errors:

Scanning dependencies of target markup
[ 37%] Building C object demos/CMakeFiles/markup.dir/markup.c.obj
[ 38%] Linking C executable markup.exe
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x7a): undefined reference to `__imp___glewUseProgram'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x89): undefined reference to `__imp___glewUniformMatrix4fv'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x90): undefined reference to `__imp___glewGetUniformLocation'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x102): undefined reference to `__imp___glewUniform1i'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x122): undefined reference to `__imp___glewUniform3f'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x1bb): undefined reference to `__imp___glewActiveTexture'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text+0x1ef): undefined reference to `__imp___glewBlendColor'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text.startup+0xdb): undefined reference to `__imp_glewInit'
CMakeFiles/markup.dir/objects.a(markup.c.obj):markup.c:(.text.startup+0xee): undefined reference to `__imp_glewGetString'
...
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x263): undefined reference to `__imp___glewDeleteBuffers'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x277): undefined reference to `__imp___glewDeleteBuffers'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x422): undefined reference to `__imp___glewBindBuffer'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x45b): undefined reference to `__imp___glewBufferData'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x49c): undefined reference to `__imp___glewBufferData'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x4d3): undefined reference to `__imp___glewGenBuffers'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x4f0): undefined reference to `__imp___glewGenBuffers'
../libfreetype-gl.a(vertex-buffer.c.obj):vertex-buffer.c:(.text+0x50a): undefined reference to `__imp___glewBufferSubData'
...

[oomek]

Anyone please?

[rougier]

I'm not familiar with MXE but t seems the library has not be compiled with glew for some reason. Since cmake found it , it seems to be installed but maybe it's an old version. Can you check on your env what is the version ?

[oomek]

It's 2.1.0
https://github.com/mxe/mxe/blob/master/src/glew.mk

[rougier]

Did you play with CMakefile configuration to check for the compile/link flags ? Also, maybe it's worth asking on MXE if anybody can help you on this problem.

[oomek]

It was wrong linking parameters i think, but I haven't tested it yet. For win32 i should be linked with parameters -lopengl32 -lgdi32 instead of -lGL. That's what worked in another similar project.

[rougier]

Can you fixed it using ccmake ?