I'm trying to build several external libraries with the ExternalProject_Add
command, among which ffmpeg.
When using the msys generator, I can't find a way to add multiple compile flags
to the configure script.
The configure command should be generated like this:
configure --prefix=/some/path --extra-cflags='-mno-cygwin -mms-bitfields'
However when I specify CONFIGURE_COMMAND as follows:
CONFIGURE_COMMAND configure --prefix=${EXT_BASE_DIR}/ffmpeg/${CMAKE_BUILD_TYPE}
--extra-cflags='-mno-cygwin -mms-bitfields'
the configure command ends up in the generated makefile as follows:
configure --prefix=/c//buildtools_data/externals/EXTERNALS_1_0_0/ffmpeg/Release
"--extra-cflags='-mno-cygwin" "-mms-bitfields'"
I've tried all kinds of possibilities such as:
CONFIGURE_COMMAND configure --prefix=${EXT_BASE_DIR}/ffmpeg/${CMAKE_BUILD_TYPE}
"--extra-cflags='-mno-cygwin -mms-bitfields'"
CONFIGURE_COMMAND configure --prefix=${EXT_BASE_DIR}/ffmpeg/${CMAKE_BUILD_TYPE}
--extra-cflags="-mno-cygwin -mms-bitfields"
CONFIGURE_COMMAND "configure
--prefix=${EXT_BASE_DIR}/ffmpeg/${CMAKE_BUILD_TYPE} --extra-cflags='-mno-cygwin
-mms-bitfields'"
all of which give an error during configure.
If anybody knows a way to do this, I'd be glad to hear.
regards,
W. Dobbe
ps:
The complete externalproject_add command is
ExternalProject_Add(
ffmpeg
PREFIX ffmpeg
DOWNLOAD_COMMAND svn export
${SVN_3RDPARTY_URL}/ffmpeg/${FFMPEG_VERSION}/ffmpeg_${FFMPEG_VERSION}.tar.bz2
&& ${CMAKE_COMMAND} -E chdir ${FFMP_PATH}/src/ffmpeg tar xvfj
../ffmpeg_${FFMPEG_VERSION}.tar.bz2 --strip-components=1
UPDATE_COMMAND ""
CONFIGURE_COMMAND ${FFMP_PATH}/src/ffmpeg/configure
--prefix=${EXT_BASE_DIR}/ffmpeg/${CMAKE_BUILD_TYPE} --extra-cflags='-mno-cygwin
-mms-bitfields' --extra-ldflags='-Wl -add-stdcall-alias' --enable-memalign-hack
--target-os=mingw32 --enable-shared --disable-static
)
cmake called as follows:
cmake -G"MSYS Makefiles" -DCMAKE_BUILD_TYPE:STRING=Release .
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Follow this link to subscribe/unsubscribe:
http://www.cmake.org/mailman/listinfo/cmake
