[Cmake] CMake suggestion - environment variables to help FindXXX.cmake fi les

[William A. Hoffman]

You may want to append your suggestions on to this
feature request in the bug tracker:

http://www . cmake . org/Bug/bug . php?op=show&bugid=36&pos=9

-Bill


At 04:33 PM 10/24/2003, Wheeler, Frederick W (Research) wrote:
>I have a suggestion for CMake.  In some situations I run CMake with option
>lists like this.
>
>  -DBUILD_VGUI:BOOL=ON \
>  -DOPENGL_INCLUDE_DIR:PATH=/home/wheeler/usr/local/include \
> 
>-DOPENGL_gl_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/li
>b \
> 
>-DOPENGL_glu_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/l
>ib \
>  -DGLUT_INCLUDE_DIR:PATH=/home/wheeler/usr/local/include \
> 
>-DGLUT_glut_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/li
>b \
>  -DGTK_glib_INCLUDE_PATH:PATH=/home/wheeler/usr/local/include \
> 
>-DGTK_glib_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/lib
>\
> 
>-DGTK_glibconfig_INCLUDE_PATH:PATH=/home/wheeler/usr/local/sparc-sun-solaris
>2.7/lib/glib/include \
> 
>-DGTK_gmodule_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/
>lib \
>  -DGTK_gtk_INCLUDE_PATH:PATH=/home/wheeler/usr/local/include \
> 
>-DGTK_gtk_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/lib
>\
> 
>-DGTK_gdk_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/lib
>\
>  -DGTK_gtkgl_INCLUDE_PATH:PATH=/home/wheeler/usr/local/include \
> 
>-DGTK_gtkgl_LIBRARY:FILEPATH=/home/wheeler/usr/local/sparc-sun-solaris2.7/li
>b \
>
>This is ugly and if OPENGL_INCLUDE_PATH changes to OPENGL_INCLUDE_DIR I have
>to track that down.
>
>It would be nice if CMake recognized special new environment variables like:
>
>  CMAKE_INCLUDE_PATH
>  CMAKE_LIBRARY_PATH
>
>Each CMake Modules FindXXX.cmake file would look to this env. var also when
>trying to track down packages.  There could also be package specific
>specializations like,
>
>  CMAKE_GTK_INCLUDE_PATH
>  CMAKE_GTK_LIBRARY_PATH
>  CMAKE_GLUT_INCLUDE_PATH
>  CMAKE_GLUT_LIBRARY_PATH
>
>There would be a pair of these for every FindXXX.cmake file.
>
>I think this would be very easy to do since CMake already knows how to get
>at environment variables.  Feature creep might be a danger.  Not sure is
>Cmake's environment variable support would currently handle this (the
>colons),
>
>  CMAKE_INCLUDE_PATH=/foo:/bar
>  CMAKE_LIBRARY_PATH=/foo:/bar
>
>Maybe the FindXXX.cmake files should also look for cache variables with
>these exact same names, so one could do this.  Actually, this might be
>better then using environment variables?
>
>  cmake -DCMAKE_INCLUDE_PATH=/foo:/bar -DCMAKE_LIBRARY_PATH=/foo:/bar
>
>Regards,
>Fred Wheeler
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