Hi Marc, On 12.02.2018 09:40, CHEVRIER, Marc wrote: > Be aware that MSYS2 environment is a "dual" environment: > * Unix like environment. Executables are in <MSYS2_ROOT>/usr/bin > * Windows like (i.e. understand windows paths but with slashes rather than > back-slashes). Executables are in <MSYS2_ROOT>/ mingw(64|32)/bin. > > So, if you want a pure unix like usage, you have to install package > 'msys/cmake'. > If you use tool in mingw(32|64)/bin (package 'mingw32/mingw-w64-i686-cmake' > or ' mingw64/mingw-w64-x86_64-cmake'), use windows paths (ex: > C:/DESTDIR/lib/cmake).
This is an interesting thought! I see that many tools from mingw(32|64)/bin accept both path styles, and about 90% of my build system uses pure Unix style. This is the first time I encounter a problem. Its at least interesting that cmake seems slightly inconsistent here: it accepts Unix style for CMAKE_PREFIX_PATH when using find_xxx(), but no Unix style for detecting package configuration files. I see now that the problem is more likely on my side. But on the other hand, it would be cool if cmake could consistently accept Unix style on MSYS2/MinGW platforms. Would it be worthwhile to make this a cmake issue? All the best, Mario > > On 12/02/2018 09:32, "CMake on behalf of Mario Emmenlauer" > <cmake-boun...@cmake.org on behalf of ma...@emmenlauer.de> wrote: > > > Dear Alan, > > thanks for your reply! Below more: > > On 11.02.2018 23:11, Alan W. Irwin wrote: > > On 2018-02-11 15:13+0100 Mario Emmenlauer wrote: > > > >> > >> I use mingw-w64-x86_64-cmake 3.10.2 on MSYS2. Generally it works well, > >> but just recently I started to have problems with CMAKE_PREFIX_PATH. > >> Its possible that the problems have been there forever, but I now just > >> found them due to a better use of CI systems. > >> > >> The problem is that cmake is not finding package configuration files > >> correctly. I have such files in DESTDIR/lib/cmake, i.e. for a library > >> XXX there are typically files XXXConfig.cmake, XXXConfigVersion.cmake > >> and XXXTargets.cmake (i.e. for Qt, VTK and others). > >> > >> But they are not found when I specify > CMAKE_PREFIX_PATH=DESTDIR/lib/cmake > >> in Unix path style. It does work when I specify the package > configuration > >> directory in Windows style! This makes things quite confusing, because > many > >> find_xxx() commands for headers and libraries work with Unix paths. So > now > >> I need to use CMAKE_PREFIX_PATH=UNIXDESTDIR for the normal find_xxx(), > but > >> add WINDESTDIR\lib\cmake for the package configuration files (*). > >> > >> Is this an MSYS2 issue or a standard cmake issue? I reported it with > MSYS2 > >> here https://github.com/Alexpux/MINGW-packages/issues/3337 in case > someone > >> can comment? > > > > Hi Mario: > > > > From <https://github.com/msys2/msys2/wiki/MSYS2-introduction>, and > > what you said above it appears you are using the "native Windows" > > cmake version from the mingw64 repository rather than the POSIX-style > > cmake package you can install from the msys2 repository. I am pretty > > Hmm, I don't think I have a native Windows cmake installed. I installed > mingw-w64-*-cmake from pacman, and I do not find any other cmake.exe in > PATH or on the hard disk. At least when I do: > > #> find /c/ /d/ -name cmake.exe 2>/dev/zero > /d/msys2/bda/mingw32/bin/cmake.exe > /d/msys2/bda/mingw64/bin/cmake.exe > > I find only the native MSYS2 mingw-w64-x86_64-cmake / > mingw-w64-xi686-cmake. > > All the best, > > Mario > > > > > sure the native version would not do well with non-native POSIX-style > > paths so I am not surprised by your results. Anyhow, I suggest you > > experiment with native versus POSIX cmake packages in both CMD and > > bash (from msys2) environments to establish what the different results > > are in those four cases for native Windows and POSIX paths. > > > > Note I have no access to MinGW-w64/MSYS2 myself, but I do pay close > > attention to this platform because it is the best Windows platform for > > PLplot according to a fellow PLplot developer who does have a lot of > > practical experience with this platform. > > > > Alan > > __________________________ > > Alan W. Irwin > > > > Astronomical research affiliation with Department of Physics and > Astronomy, > > University of Victoria (astrowww.phys.uvic.ca). > > > > Programming affiliations with the FreeEOS equation-of-state > > implementation for stellar interiors (freeeos.sf.net); the Time > > Ephemerides project (timeephem.sf.net); PLplot scientific plotting > > software package (plplot.sf.net); the libLASi project > > (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); > > and the Linux Brochure Project (lbproject.sf.net). > > __________________________ > > > > Linux-powered Science > > __________________________ > > > > > > Viele Gruesse, > > Mario Emmenlauer > > > -- > BioDataAnalysis GmbH, Mario Emmenlauer Tel. Buero: +49-89-74677203 > Balanstr. 43 mailto: memmenlauer * biodataanalysis.de > D-81669 München http://www.biodataanalysis.de/ > -- > > 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 > > Viele Gruesse, Mario Emmenlauer -- BioDataAnalysis GmbH, Mario Emmenlauer Tel. Buero: +49-89-74677203 Balanstr. 43 mailto: memmenlauer * biodataanalysis.de D-81669 München http://www.biodataanalysis.de/ -- 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
