CMake bug then...?
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Quoting David Cole <[EMAIL PROTECTED]>:
Perhaps something else is setting OPENGL_INCLUDE_DIR prior to hitting
that block...? cc'ing the CMake list to see if anyone else has had
CMake problems with Cygwin/OpenGL...
FIND_PATH results are cached, so you won't know the original source of
OPENGL_INCLUDE_DIR unless you configure from scratch (start with an
empty binary dir)...
Add this to see if it's set before you hit that block:
MESSAGE(STATUS "OPENGL_INCLUDE_DIR='${OPENGL_INCLUDE_DIR}'")
If it's empty, then it sounds like it might be a bug... If it's set
then we look for somebody else setting it before getting here...
OK. I've cleaned out all CMake cache files using "rm -rf CMake*".
The FindOpenGL.cmake file now looks like this:
IF (WIN32)
MESSAGE(STATUS "FindOpenGL: WIN32 is defined...")
IF (CYGWIN)
MESSAGE(STATUS "FindOpenGL: CYGWIN is defined...")
MESSAGE(STATUS "OPENGL_INCLUDE_DIR='${OPENGL_INCLUDE_DIR}'")
FIND_PATH(OPENGL_INCLUDE_DIR GL/gl.h
/usr/include
/usr/include/w32api
/usr/X11R6/include
)
MESSAGE(STATUS "OPENGL_INCLUDE_DIR='${OPENGL_INCLUDE_DIR}'")
And here is the output:
-- FindOpenGL: WIN32 is defined...
-- FindOpenGL: CYGWIN is defined...
-- OPENGL_INCLUDE_DIR=''
-- OPENGL_INCLUDE_DIR='/usr/X11R6/include'
I don't get it. Is there a way to have CMake verbosely explain its
decision process in the FIND_PATH() statement?
Thanks,
-Steve
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