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Don't murder the default PATH and CMAKE_SYSTEM_PREFIX_PATH on OS X. Just prioritize /usr.

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Changing PATH basically screws everything up, and while the attempt to
avoid MacPorts copies of system libraries was well-intentioned, it made
the OS X buildbot unable to pick up ffmpeg and libusb.

It's sufficient to put /usr first to make sure we use the system copies
of duplicated libraries.
This commit is contained in:
comex 2014-10-29 00:11:57 -04:00
parent cb0af4057e
commit efb2f361aa
1 changed files with 15 additions and 4 deletions
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19
CMakeLists.txt
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@ -11,6 +11,9 @@ option(ENABLE_QT "Enable Qt (use the experimental Qt interface)" OFF)
option(ENABLE_PCH "Use PCH to speed up compilation" ON)
option(ENABLE_LTO "Enables Link Time Optimization" OFF)
option(ENABLE_GENERIC "Enables generic build that should run on any little-endian host" OFF)
if(APPLE)
option(OSX_USE_DEFAULT_SEARCH_PATH "Don't prioritize system library paths" OFF)
endif()
option(ENCODE_FRAMEDUMPS "Encode framedumps in AVI format" ON)
@ -219,10 +222,18 @@ if(ENABLE_LTO)
endif()
if(APPLE)
# Ignore MacPorts and Fink and any other locally installed packages that
# might prevent building a distributable binary.
set(CMAKE_SYSTEM_PREFIX_PATH /usr)
set(ENV{PATH} /usr/bin:/bin:/usr/sbin:/sbin)
if(NOT OSX_USE_DEFAULT_SEARCH_PATH)
# Hack up the path to prioritize the path to built-in OS libraries to
# increase the chance of not depending on a bunch of copies of them
# installed by MacPorts, Fink, Homebrew, etc, and ending up copying
# them into the bundle. Since we optionally depend on libraries which
# are not part of OS X (ffmpeg, libusb, etc.), however, don't remove
# the default path entirely as was done in a previous version of this
# file. This is still kinda evil, since it defeats the user's path
# settings...
# See http://www.cmake.org/cmake/help/v3.0/command/find_program.html
set(CMAKE_PREFIX_PATH "${CMAKE_PREFIX_PATH};/usr")
endif()
# Some of our code contains Objective C constructs.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -x objective-c -stdlib=libc++")