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cmake/CFeatureCheck.cmake: fix feature tests failing when Opus is a submodule

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CMAKE_SOURCE_DIR corresponds to the top project's source directory.
CMAKE_BINARY_DIR corresponds to the top project's binary directory.

The usage of these variables doesn't cause any problems when Opus is built as a standalone project.

This is not the case when Opus is added as submodule: the variables are set by the project that calls "add_subdirectory()".

The fix consists in using PROJECT_SOURCE_DIR and PROJECT_BINARY_DIR, which always refer to the current project.

Signed-off-by: Mark Harris <mark.hsj@gmail.com>
This commit is contained in:
Davide Beatrici 2020-05-28 10:53:18 +02:00 • committed by Mark Harris
parent 97fca1b339
commit ce9d83be80
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1 changed files with 2 additions and 2 deletions
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cmake/CFeatureCheck.cmake
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@ -27,7 +27,7 @@ function(c_feature_check FILE)
if (NOT DEFINED COMPILE_${FEATURE})
message(STATUS "Performing Test ${FEATURE}")
try_compile(COMPILE_${FEATURE} ${CMAKE_BINARY_DIR} ${CMAKE_SOURCE_DIR}/cmake/${FILE}.c)
try_compile(COMPILE_${FEATURE} ${PROJECT_BINARY_DIR} ${PROJECT_SOURCE_DIR}/cmake/${FILE}.c)
endif()
if(COMPILE_${FEATURE})