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Use Cmake macros to detect getauxval and dlopen

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This commit is contained in:
Guillaume Chatelet
2019-01-15 15:18:08 +01:00
parent e8e5610fc4
commit 122b067087
3 changed files with 19 additions and 21 deletions
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15
CMakeLists.txt
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@ -20,6 +20,12 @@ option(BUILD_SHARED_LIBS "Build library as shared." OFF)
# library : cpu_features
#
include (CheckIncludeFile)
include (CheckSymbolExists)
check_symbol_exists(getauxval sys/auxv.h HAVE_STRONG_GETAUXVAL)
check_include_file(dlfcn.h HAVE_DLFCN_H)
set(_HDRS
include/cpu_features_macros.h
)
@ -55,7 +61,7 @@ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)")
list(APPEND _HDRS include/cpuinfo_ppc.h)
list(APPEND _SRCS src/cpuinfo_ppc.c)
else()
message(SEND_ERROR "Unsupported architectures ${CMAKE_SYSTEM_PROCESSOR}")
message(FATAL_ERROR "Unsupported architectures ${CMAKE_SYSTEM_PROCESSOR}")
endif()
add_library(cpu_features
@ -71,8 +77,11 @@ target_include_directories(cpu_features
include/internal
)
set_target_properties(cpu_features PROPERTIES PUBLIC_HEADER "${_HDRS}")
target_compile_definitions(cpu_features
PUBLIC STACK_LINE_READER_BUFFER_SIZE=1024)
target_compile_definitions(cpu_features PUBLIC
STACK_LINE_READER_BUFFER_SIZE=1024
HAVE_STRONG_GETAUXVAL=${HAVE_STRONG_GETAUXVAL}
HAVE_DLFCN_H=${HAVE_DLFCN_H}
)
target_link_libraries(cpu_features PUBLIC ${CMAKE_DL_LIBS})
# The use of shared libraries is discouraged.