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-rw-r--r--cmake/External/gflags.cmake56
1 files changed, 56 insertions, 0 deletions
diff --git a/cmake/External/gflags.cmake b/cmake/External/gflags.cmake
new file mode 100644
index 0000000..a50a092
--- /dev/null
+++ b/cmake/External/gflags.cmake
@@ -0,0 +1,56 @@
+if (NOT __GFLAGS_INCLUDED) # guard against multiple includes
+ set(__GFLAGS_INCLUDED TRUE)
+
+ # use the system-wide gflags if present
+ find_package(GFlags)
+ if (GFLAGS_FOUND)
+ set(GFLAGS_EXTERNAL FALSE)
+ else()
+ # gflags will use pthreads if it's available in the system, so we must link with it
+ find_package(Threads)
+
+ # build directory
+ set(gflags_PREFIX ${CMAKE_BINARY_DIR}/external/gflags-prefix)
+ # install directory
+ set(gflags_INSTALL ${CMAKE_BINARY_DIR}/external/gflags-install)
+
+ # we build gflags statically, but want to link it into the caffe shared library
+ # this requires position-independent code
+ if (UNIX)
+ set(GFLAGS_EXTRA_COMPILER_FLAGS "-fPIC")
+ endif()
+
+ set(GFLAGS_CXX_FLAGS ${CMAKE_CXX_FLAGS} ${GFLAGS_EXTRA_COMPILER_FLAGS})
+ set(GFLAGS_C_FLAGS ${CMAKE_C_FLAGS} ${GFLAGS_EXTRA_COMPILER_FLAGS})
+
+ ExternalProject_Add(gflags
+ PREFIX ${gflags_PREFIX}
+ GIT_REPOSITORY "https://github.com/gflags/gflags.git"
+ GIT_TAG "v2.1.2"
+ UPDATE_COMMAND ""
+ INSTALL_DIR ${gflags_INSTALL}
+ CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
+ -DCMAKE_INSTALL_PREFIX=${gflags_INSTALL}
+ -DBUILD_SHARED_LIBS=OFF
+ -DBUILD_STATIC_LIBS=ON
+ -DBUILD_PACKAGING=OFF
+ -DBUILD_TESTING=OFF
+ -DBUILD_NC_TESTS=OFF
+ -BUILD_CONFIG_TESTS=OFF
+ -DINSTALL_HEADERS=ON
+ -DCMAKE_C_FLAGS=${GFLAGS_C_FLAGS}
+ -DCMAKE_CXX_FLAGS=${GFLAGS_CXX_FLAGS}
+ LOG_DOWNLOAD 1
+ LOG_INSTALL 1
+ )
+
+ set(GFLAGS_FOUND TRUE)
+ set(GFLAGS_INCLUDE_DIRS ${gflags_INSTALL}/include)
+ set(GFLAGS_LIBRARIES ${gflags_INSTALL}/lib/libgflags.a ${CMAKE_THREAD_LIBS_INIT})
+ set(GFLAGS_LIBRARY_DIRS ${gflags_INSTALL}/lib)
+ set(GFLAGS_EXTERNAL TRUE)
+
+ list(APPEND external_project_dependencies gflags)
+ endif()
+
+endif()