diff options
| -rw-r--r-- | CMake/resources.cmake | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/CMake/resources.cmake b/CMake/resources.cmake index 2fd4bb0a2..259afabb6 100644 --- a/CMake/resources.cmake +++ b/CMake/resources.cmake @@ -43,12 +43,49 @@ else () find_file(HAVE_PTHREAD_H pthread.h) endif (WIN32 AND NOT CYGWIN) +# Special case for Microsoft Visual Studio generator (MSVC): +# +# The header files <GL/glu.h> and <locale.h> are located in the SDK's +# for Visual Studio. If CMake is invoked from a desktop icon or the Windows +# menu it doesn't have the correct paths to find these header files. +# The CMake folks recommend not to search for these files at all, because +# they must always be there, but we do anyway. +# If we don't find them we issue a warning and suggest to rerun CMake from +# a "Developer Command Prompt for Visual Studio xxxx", but we fix the issue +# by setting the *local* instance (not the cache variable) of the corresponding +# CMake variable to '1' since we "know" the header file is available. +# +# If the user builds the solution, everything should run smoothly despite +# the fact that the header files were not found. +# +# If the configuration is changed somehow (e.g. by editing CMakeLists.txt) +# CMake will be rerun from within Visual Studio, find the header file, and +# set the cache variable for the header file to its correct path. The latter is +# only informational so you can see that (and where) the headers were found. +# +# Note: these cache variables can only be seen in "advanced" mode. + if (MSVC) - message(STATUS "Note: The following two headers should be found!") - message(STATUS "HAVE_GL_GLU_H = '${HAVE_GL_GLU_H}'") - message(STATUS "HAVE_LOCALE_H = '${HAVE_LOCALE_H}'") - message(STATUS "If one of these headers was not found, run cmake-gui ...") - message(STATUS "... again from a Visual Studio developer command prompt!") + set (MSVC_RERUN_MESSAGE FALSE) + + if (NOT HAVE_GL_GLU_H) + message(STATUS "Warning: Header file GL/glu.h was not found.") + set (HAVE_GL_GLU_H 1) + set (MSVC_RERUN_MESSAGE TRUE) + endif (NOT HAVE_GL_GLU_H) + + if (NOT HAVE_LOCALE_H) + message(STATUS "Warning: Header file locale.h was not found.") + set (HAVE_LOCALE_H 1) + set (MSVC_RERUN_MESSAGE TRUE) + endif (NOT HAVE_LOCALE_H) + + if (MSVC_RERUN_MESSAGE) + message(STATUS "The FLTK team recommends to rerun CMake from a") + message(STATUS "\"Developer Command Prompt for Visual Studio xxxx\"") + endif (MSVC_RERUN_MESSAGE) + + unset (MSVC_RERUN_MESSAGE) endif (MSVC) # Simulate the behavior of autoconf macro AC_HEADER_DIRENT, see: |