If you want to have all of the sub directories to have the defines present, you
could use ADD_DEFINITIONS().
option(FOO_OPTION "enable foo" OFF)
option(BAR_OPTION "enable bar" OFF)
if(FOO_OPTION)
add_definitions("-DFOO_X" )
elseif(BAR_OPTION)
add_definitions("-DFOO_Y")
else()
add_definitions("-DOTHER")
endif()
-----Original Message-----
From: cmake-boun...@cmake.org [mailto:cmake-boun...@cmake.org] On Behalf Of
Olaf Peter
Sent: Friday, April 05, 2013 12:58 PM
To: cmake@cmake.org
Subject: [CMake] compiler defines for sub projects
Hello,
is it possible to inherit compiler defines for sub projects in sub directories?
I have a library project which can be configured at compile time using
preprocessor defines (cmake option)
option(FOO_OPTION "enable foo" OFF)
option(BAR_OPTION "enable bar" OFF)
if(FOO_OPTION)
set_target_properties(my_lib PROPERTIES COMPILE_DEFINITIONS "FOO_X" )
elseif(BAR_OPTION)
set_target_properties(my_lib PROPERTIES COMPILE_DEFINITIONS "FOO_Y")
else()
set_target_properties(my_lib PROPERTIES COMPILE_DEFINITIONS "OTHER" )
endif()
now, in the sub of this I have unit tests which need to know about this compile
defs, hence I have the same if/else again.
Is there an easy way for this?
Thanks,
Olaf
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