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cmake_minimum_required(VERSION 2.8.4.20110303 FATAL_ERROR)
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project(LinkStatic C)
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if(NOT CMAKE_C_COMPILER_ID STREQUAL "GNU")
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message(FATAL_ERROR "This test works only with the GNU compiler!")
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endif()
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find_library(MATH_LIBRARY NAMES libm.a)
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if(MATH_LIBRARY)
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get_filename_component(MATH_LIB_DIR ${MATH_LIBRARY} PATH)
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link_directories(${MATH_LIB_DIR})
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# Name the library both with a full path and as "-lm" to
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# activate the link type switching code for both cases.
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# If the second one links shared then the link will fail.
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set(MATH_LIBRARIES ${MATH_LIBRARY} -lm)
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else()
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message(FATAL_ERROR "Cannot find libm.a needed for this test")
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endif()
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add_executable(LinkStatic LinkStatic.c)
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target_link_libraries(LinkStatic ${MATH_LIBRARIES})
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# Enable static linking.
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set(LinkStatic_FLAG "-static" CACHE STRING "Flag to link statically")
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set_property(TARGET LinkStatic PROPERTY LINK_FLAGS "${LinkStatic_FLAG}")
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set_property(TARGET LinkStatic PROPERTY LINK_SEARCH_START_STATIC 1)
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#set_property(TARGET LinkStatic PROPERTY LINK_SEARCH_END_STATIC 1) # insufficient
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