[CMake] FindwxWidgets and Cross-compiling
Miguel A. Figueroa-Villanueva
miguelf at ieee.org
Sat Jan 5 17:47:30 EST 2008
Hello Everyone,
I have been assigned a bug (http://www.cmake.org/Bug/view.php?id=6187)
to fix the FindwxWidgets for cross-compiling, but since I don't
cross-compile I'm not sure what is the correct approach.
Rodolfo submitted a patch that adds the following code around the
FIND_PROGRAM call:
# if cross-compiling, save the current
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM and change it to ONLY
IF(CMAKE_FIND_ROOT_PATH)
SET(_old_path_mode ${CMAKE_FIND_ROOT_PATH_MODE_PROGRAM})
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
ENDIF(CMAKE_FIND_ROOT_PATH)
FIND_PROGRAM(wxWidgets_CONFIG_EXECUTABLE wx-config)
# restore the previous CMAKE_FIND_ROOT_PATH_MODE_PROGRAM
if(_old_path_mode)
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ${_old_path_mode})
endif(_old_path_mode)
I believe the idea is to ensure that the wx-config used is the one
from the target platform. I would like to enlist the help of those
more experienced cross-compiling to affirm that this is the right
course of action. I am concerned that maybe the
CMAKE_FIND_ROOT_PATH_MODE_PROGRAM should be set before the
FIND_PACKAGE call. Would people be setting this differently for
different programs, so that I need to ensure that only the
cross-compiling directories are searched for to find wx-config? Or can
I count on the user to have set this mode correctly for his platform?
Thanks,
--Miguel
PS - Thanks to Rodolfo for raising this issue.
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