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Make the cmake check_lib macro more versatile. It first tries pkg-config, and if that fails it then check for libraries and required headers. Also cleaned up the output a little bit.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6544 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Glenn Rice
2010-12-10 02:00:05 +00:00
parent c718d2e630
commit 06013d5eec
4 changed files with 83 additions and 61 deletions
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66
CMakeTests/CheckLib.cmake
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@ -1,34 +1,64 @@
macro(check_lib var lib required)
pkg_search_module(${var} ${lib})
include(FindPkgConfig OPTIONAL)
macro(_internal_message msg _quiet)
if(NOT _quiet)
message("${msg}")
endif()
endmacro()
macro(check_lib var lib)
set(_is_required 0)
set(_is_quiet 0)
foreach(_arg ${ARGN})
if(_arg STREQUAL "REQUIRED")
set(_is_required 1)
endif()
if(_arg STREQUAL "QUIET")
set(_is_quiet 1)
endif()
endforeach()
if(ARGN)
list(REMOVE_ITEM ${ARGN} "REQUIRED")
list(REMOVE_ITEM ${ARGN} "QUIET")
endif()
if(PKG_CONFIG_FOUND AND NOT ${var}_FOUND)
string(TOLOWER ${lib} lower_lib)
pkg_search_module(${var} QUIET ${lower_lib})
endif()
if(${var}_FOUND)
message("${lib} found")
_internal_message("${lib} found" _is_quiet)
else()
find_library(${var} ${lib})
if(${var})
message("${lib} found")
foreach(_file ${ARGN})
find_path(${var}_INCLUDE ${_file})
endforeach()
if(${var} AND ${var}_INCLUDE)
_internal_message("${lib} found" _is_quiet)
set(${var}_FOUND 1 CACHE INTERNAL "")
else()
if(${required} STREQUAL "REQUIRED")
if(_is_required)
message(FATAL_ERROR "${lib} is required but not found")
else()
message("${lib} not found")
_internal_message("${lib} not found" _is_quiet)
endif()
endif()
endif()
endmacro()
macro(check_lib_and_header var lib header required)
find_library(${var} ${lib})
find_path(${var}_INCLUDE ${header})
if(${var} AND ${var}_INCLUDE)
message("${lib} found")
set(${var}_FOUND 1 CACHE INTERNAL "")
macro(check_libav)
if(PKG_CONFIG_FOUND)
pkg_check_modules(LIBAV libavcodec>=52.72.2 libavformat>=52.64.2
libswscale>=0.11.0 libavutil>=50.15.1)
else()
if(${required} STREQUAL "REQUIRED")
message(FATAL_ERROR "${lib} is required but not found")
else()
message("${lib} not found")
endif()
message("pkg-config is required to check for libav")
endif()
if(LIBAV_FOUND)
message("libav found, enabling AVI frame dumps")
add_definitions(-DHAVE_LIBAV)
else()
message("libav not found, disabling AVI frame dumps")
endif()
endmacro()