Simplify CMakeLists.txt for protobuf.

All of the compilers we support have std::unordered_map and std::unordered_set in their standard locations.
develop
Ben Lubar 2018-05-13 16:55:38 -05:00
parent 06031bdd0e
commit 9cf4cdbc1f
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GPG Key ID: 018BAB45DB2D2B24
1 changed files with 6 additions and 46 deletions

@ -5,53 +5,13 @@ IF(CMAKE_COMPILER_IS_GNUCC)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x") SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
ENDIF() ENDIF()
SET(HAVE_HASH_MAP 0) SET(HASH_MAP_H <unordered_map>)
SET(HASH_MAP_CLASS unordered_map) SET(HASH_SET_H <unordered_map>)
SET(HASH_NAMESPACE std)
#Check for all of the possible combinations of unordered_map and hash_map
FOREACH(header tr1/unordered_map unordered_map)
FOREACH(namespace std::tr1 std )
IF(HAVE_HASH_MAP EQUAL 0 AND NOT STL_HASH_OLD_GCC)
CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/testHashMap.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
IF(CMAKE_CROSSCOMPILING)
TRY_COMPILE(HASH_MAP_COMPILE_RESULT ${PROJECT_BINARY_DIR}/CMakeTmp "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
SET(HASH_MAP_RUN_RESULT ${HASH_MAP_COMPILE_RESULT})
ELSE()
TRY_RUN(HASH_MAP_RUN_RESULT HASH_MAP_COMPILE_RESULT ${PROJECT_BINARY_DIR}/CMakeTmp "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
ENDIF()
IF (HASH_MAP_COMPILE_RESULT AND HASH_MAP_RUN_RESULT EQUAL 1)
SET(HASH_MAP_H <${header}>)
STRING(REPLACE "map" "set" HASH_SET_H ${HASH_MAP_H})
SET(HASH_NAMESPACE ${namespace})
SET(HASH_MAP_CLASS unordered_map) SET(HASH_MAP_CLASS unordered_map)
SET(HASH_SET_CLASS unordered_set) SET(HASH_SET_CLASS unordered_set)
SET(HAVE_HASH_MAP 1) SET(HAVE_HASH_MAP 1)
SET(HAVE_HASH_SET 1) SET(HAVE_HASH_SET 1)
ENDIF()
ENDIF()
ENDFOREACH(namespace)
ENDFOREACH(header)
IF (HAVE_HASH_MAP EQUAL 0)
SET(HASH_MAP_CLASS hash_map)
FOREACH(header ext/hash_map hash_map)
FOREACH(namespace __gnu_cxx "" std stdext)
IF (HAVE_HASH_MAP EQUAL 0)
CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/testHashMap.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
TRY_COMPILE(HASH_MAP_COMPILE_RESULT ${PROJECT_BINARY_DIR}/CMakeTmp "${CMAKE_CURRENT_BINARY_DIR}/testHashMap.cpp")
IF (HASH_MAP_COMPILE_RESULT)
SET(HASH_MAP_H <${header}>)
STRING(REPLACE "map" "set" HASH_SET_H ${HASH_MAP_H})
SET(HASH_NAMESPACE ${namespace})
SET(HASH_MAP_CLASS hash_map)
SET(HASH_SET_CLASS hash_set)
SET(HAVE_HASH_MAP 1)
SET(HAVE_HASH_SET 1)
ENDIF()
ENDIF()
ENDFOREACH()
ENDFOREACH()
ENDIF()
IF (HAVE_HASH_MAP EQUAL 0) IF (HAVE_HASH_MAP EQUAL 0)
MESSAGE(SEND_ERROR "Could not find a working hash map implementation. Please install GCC >= 4.4, and all necessary 32-bit C++ development libraries.") MESSAGE(SEND_ERROR "Could not find a working hash map implementation. Please install GCC >= 4.4, and all necessary 32-bit C++ development libraries.")