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Fix build with older cmake

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This commit is contained in:
Peter Conrad 2019-08-17 10:23:15 +02:00
parent 3f1096d23e
commit 699238f08f
2 changed files with 20 additions and 1 deletions
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3
CMakeLists.txt
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@ -136,7 +136,8 @@ IF( WIN32 )
# iphlpapi.lib
ENDIF(WIN32)
FIND_PACKAGE(Boost COMPONENTS ${BOOST_COMPONENTS} REQUIRED)
set(Boost_DIR "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules/Boost")
FIND_PACKAGE(Boost CONFIG COMPONENTS ${BOOST_COMPONENTS} )
IF(NOT WIN32)
MESSAGE(STATUS "Configuring fc to build on Unix/Apple")

18
CMakeModules/Boost/BoostConfig.cmake Normal file
View file

@ -0,0 +1,18 @@
# This overrides `find_package(Boost ... CONFIG ... )` calls
# - calls the CMake's built-in `FindBoost.cmake` and adds `pthread` library dependency
MESSAGE(STATUS "Using custom FindBoost config")
find_package(Boost 1.58 REQUIRED COMPONENTS ${Boost_FIND_COMPONENTS})
# Inject `pthread` dependency to Boost if needed
if (UNIX AND NOT CYGWIN)
list(FIND Boost_FIND_COMPONENTS thread _using_boost_thread)
if (_using_boost_thread GREATER -1)
find_library(BOOST_THREAD_LIBRARY NAMES pthread DOC "The threading library used by boost-thread")
if (BOOST_THREAD_LIBRARY)
MESSAGE(STATUS "Adding Boost thread lib dependency: ${BOOST_THREAD_LIBRARY}")
list(APPEND Boost_LIBRARIES ${BOOST_THREAD_LIBRARY})
endif ()
endif ()
endif ()