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Build: Fix RPATH handling

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CMAKE_INSTALL_RPATH has to be set before the targets are defined (oops.)

This also explicitly turns on MACOSX_RPATH for the shared libraries
(which is the default with newer versions of CMake but not with 2.8.x.)
The old autotools/libtool build system hard-coded the install name
directory of the OS X shared libraries to libdir, which meant that any
executable that linked against those libraries would also be hard-coded
to look for the libjpeg-turbo libraries in that directory.  @rpath makes
the OS X version of libjpeg-turbo behave like the Linux version, in the
sense that the executables under /opt/libjpeg-turbo/bin will
automatically pick up the libraries under /opt/libjpeg-turbo/lib* by
default, but other executables won't unless they are linked with -rpath.
This commit is contained in:
DRC
2016-11-23 17:12:57 -06:00
parent 6abd39160c
commit 27d4c5ea22
2 changed files with 7 additions and 1 deletions
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3
sharedlib/CMakeLists.txt
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@@ -40,6 +40,9 @@ add_library(jpeg SHARED ${JPEG_SRCS} ${DEFFILE} $<TARGET_OBJECTS:simd>
set_target_properties(jpeg PROPERTIES SOVERSION ${SO_MAJOR_VERSION}
VERSION ${SO_MAJOR_VERSION}.${SO_AGE}.${SO_MINOR_VERSION})
if(APPLE)
set_target_properties(jpeg PROPERTIES MACOSX_RPATH 1)
endif()
if(MAPFLAG)
set_target_properties(jpeg PROPERTIES
LINK_FLAGS "${MAPFLAG}${CMAKE_BINARY_DIR}/libjpeg.map")