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xlz wants to merge 3 commits into from
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Link local libusb statically on Linux/Mac #283

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eb66fe3
Link local libusb statically on Linux/Mac
xlz Jun 10, 2015
8fb675e
Do not export libusb symbols
xlz Jun 10, 2015
095356c
Fix static libusb link order
xlz Jun 17, 2015
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2 changes: 1 addition & 1 deletion depends/install_libusb.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ git clone https://github.com/libusb/libusb.git $LIBUSB_SOURCE_DIR
cd $LIBUSB_SOURCE_DIR
git checkout 51b10191033ca3a3819dcf46e1da2465b99497c2
./bootstrap.sh
./configure --prefix=$LIBUSB_INSTALL_DIR
CFLAGS=-fPIC ./configure --prefix=$LIBUSB_INSTALL_DIR
make && make install

cd $DEPENDS_DIR
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33 changes: 28 additions & 5 deletions examples/protonect/CMakeLists.txt
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Expand Up @@ -23,6 +23,15 @@ IF(ENABLE_CXX11)
ENDIF()
ENDIF(ENABLE_CXX11)

INCLUDE(CheckCXXCompilerFlag)
SET(CMAKE_REQUIRED_FLAGS "-Wl,--exclude-libs,ALL")
CHECK_CXX_COMPILER_FLAG("" _EXCLUDE_LIBS)
SET(LINKER_EXCLUDE_LIBS ${_EXCLUDE_LIBS} CACHE BOOL "Linker supports --exclude-libs")
SET(CMAKE_REQUIRED_FLAGS "-Wl,-exported_symbols_list,/dev/null")
CHECK_CXX_COMPILER_FLAG("" _EXPORTED_SYMBOLS_LIST)
SET(LINKER_EXPORTED_SYMBOLS_LIST ${_EXPORTED_SYMBOLS_LIST} CACHE BOOL "Linker supports -exported_symbols_list")
SET(CMAKE_REQUIRED_FLAGS)

# additional cmake modules
LIST(APPEND CMAKE_MODULE_PATH ${MY_DIR}/cmake_modules)

Expand Down Expand Up @@ -52,8 +61,6 @@ INCLUDE_DIRECTORIES(
${TurboJPEG_INCLUDE_DIRS}
)

LINK_DIRECTORIES(${LibUSB_LIBRARY_DIRS})

SET(RESOURCES_INC_FILE "${MY_DIR}/src/resources.inc.h")

SET(SOURCES
Expand Down Expand Up @@ -105,7 +112,8 @@ SET(SOURCES
SET(LIBRARIES
${OpenCV_LIBS}
${OpenCV_LIBRARIES}
${LibUSB_LIBRARIES}
${LibUSB_STATIC_LIBRARIES}
${LibUSB_STATIC_LDFLAGS_OTHER} # -Wl,-framework,XYZ on Mac OSX
${TurboJPEG_LIBRARIES}
${LIBFREENECT2_THREADING_LIBRARIES}
)
Expand Down Expand Up @@ -165,8 +173,6 @@ IF(ENABLE_OPENCL)
ENDIF(OPENCL_FOUND)
ENDIF(ENABLE_OPENCL)

SET(CMAKE_INSTALL_RPATH ${LibUSB_LIBDIR})

CONFIGURE_FILE("${MY_DIR}/include/libfreenect2/config.h.in" "${MY_DIR}/include/libfreenect2/config.h" @ONLY)
GENERATE_RESOURCES(${RESOURCES_INC_FILE} ${MY_DIR} ${RESOURCES})

Expand All @@ -176,6 +182,23 @@ set_target_properties(freenect2 PROPERTIES POSITION_INDEPENDENT_CODE 1)
ADD_LIBRARY(freenect2shared SHARED $<TARGET_OBJECTS:freenect2>)
ADD_LIBRARY(freenect2static STATIC $<TARGET_OBJECTS:freenect2>)
set_target_properties(freenect2shared PROPERTIES OUTPUT_NAME freenect2)

IF(LINKER_EXCLUDE_LIBS)
get_filename_component(LibUSB_STATIC_ARCHIVE_NAME ${LibUSB_STATIC_ARCHIVE} NAME)
SET_TARGET_PROPERTIES(freenect2shared PROPERTIES LINK_FLAGS "-Wl,--exclude-libs,${LibUSB_STATIC_ARCHIVE_NAME}")
ELSEIF(LINKER_EXPORTED_SYMBOLS_LIST)
ADD_LIBRARY(testsym SHARED $<TARGET_OBJECTS:freenect2>)
TARGET_LINK_LIBRARIES(testsym ${LIBRARIES})
ADD_CUSTOM_TARGET(gensym
COMMAND nm -gj $<TARGET_FILE:testsym> | grep -v ^_libusb >${CMAKE_BINARY_DIR}/nolibusb.sym
DEPENDS testsym
)
ADD_DEPENDENCIES(freenect2shared gensym)
SET_TARGET_PROPERTIES(freenect2shared PROPERTIES LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_BINARY_DIR}/nolibusb.sym")
ELSE()
MESSAGE(FATAL_ERROR "Linker has no symbol hiding support")
ENDIF()

set_target_properties(freenect2static PROPERTIES OUTPUT_NAME freenect2)
IF(MSVC)
set_target_properties(freenect2static PROPERTIES OUTPUT_NAME freenect2static)
Expand Down
11 changes: 11 additions & 0 deletions examples/protonect/cmake_modules/FindLibUSB.cmake
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Expand Up @@ -10,6 +10,17 @@
IF(PKG_CONFIG_FOUND)
SET(ENV{PKG_CONFIG_PATH} "${DEPENDS_DIR}/libusb/lib/pkgconfig")
PKG_CHECK_MODULES(LibUSB libusb-1.0)

# expand the full path of libusb-1.0.a in LibUSB_STATIC_LIBRARIES
LIST(REMOVE_ITEM LibUSB_STATIC_LIBRARIES ${LibUSB_LIBRARIES})
LIST(INSERT CMAKE_FIND_LIBRARY_SUFFIXES 0 ".a")
FIND_LIBRARY(LibUSB_STATIC_ARCHIVE
NAMES ${LibUSB_LIBRARIES}
PATHS ${LibUSB_LIBRARY_DIRS} NO_DEFAULT_PATH
)
LIST(REMOVE_AT CMAKE_FIND_LIBRARY_SUFFIXES 0)
LIST(INSERT LibUSB_STATIC_LIBRARIES 0 ${LibUSB_STATIC_ARCHIVE})

RETURN()
ENDIF()

Expand Down