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# Version 1.0 (2013-04-12)
# Public Domain, originally written by Lasse Kärkkäinen <tronic@zi.fi>
# Published at http://www.cmake.org/Wiki/CMake:How_To_Find_Libraries
# If you improve the script, please modify the forementioned wiki page because
# I no longer maintain my scripts (hosted as static files at zi.fi). Feel free
# to remove this entire header if you use real version control instead.
# Changelog:
# 2013-04-12 Added version number (1.0) and this header, no other changes
# 2009-10-08 Originally published
# Works the same as find_package, but forwards the "REQUIRED" and "QUIET" arguments
# used for the current package. For this to work, the first parameter must be the
# prefix of the current package, then the prefix of the new package etc, which are
# passed to find_package.
macro (libfind_package PREFIX)
set (LIBFIND_PACKAGE_ARGS ${ARGN})
if (${PREFIX}_FIND_QUIETLY)
set (LIBFIND_PACKAGE_ARGS ${LIBFIND_PACKAGE_ARGS} QUIET)
endif ()
if (${PREFIX}_FIND_REQUIRED)
set (LIBFIND_PACKAGE_ARGS ${LIBFIND_PACKAGE_ARGS} REQUIRED)
endif ()
find_package(${LIBFIND_PACKAGE_ARGS})
endmacro (libfind_package)
# CMake developers made the UsePkgConfig system deprecated in the same release (2.6)
# where they added pkg_check_modules. Consequently I need to support both in my scripts
# to avoid those deprecated warnings. Here's a helper that does just that.
# Works identically to pkg_check_modules, except that no checks are needed prior to use.
macro (libfind_pkg_check_modules PREFIX PKGNAME)
if (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
include(UsePkgConfig)
pkgconfig(${PKGNAME} ${PREFIX}_INCLUDE_DIRS ${PREFIX}_LIBRARY_DIRS ${PREFIX}_LDFLAGS ${PREFIX}_CFLAGS)
else ()
find_package(PkgConfig)
if (PKG_CONFIG_FOUND)
pkg_check_modules(${PREFIX} ${PKGNAME})
endif ()
endif ()
endmacro (libfind_pkg_check_modules)
# Do the final processing once the paths have been detected.
# If include dirs are needed, ${PREFIX}_PROCESS_INCLUDES should be set to contain
# all the variables, each of which contain one include directory.
# Ditto for ${PREFIX}_PROCESS_LIBS and library files.
# Will set ${PREFIX}_FOUND, ${PREFIX}_INCLUDE_DIRS and ${PREFIX}_LIBRARIES.
# Also handles errors in case library detection was required, etc.
macro (libfind_process PREFIX)
# Skip processing if already processed during this run
if (NOT ${PREFIX}_FOUND)
# Start with the assumption that the library was found
set (${PREFIX}_FOUND TRUE)
# Process all includes and set _FOUND to false if any are missing
foreach (i ${${PREFIX}_PROCESS_INCLUDES})
if (${i})
set (${PREFIX}_INCLUDE_DIRS ${${PREFIX}_INCLUDE_DIRS} ${${i}})
mark_as_advanced(${i})
else ()
set (${PREFIX}_FOUND FALSE)
endif ()
endforeach (i)
# Process all libraries and set _FOUND to false if any are missing
foreach (i ${${PREFIX}_PROCESS_LIBS})
if (${i})
set (${PREFIX}_LIBRARIES ${${PREFIX}_LIBRARIES} ${${i}})
mark_as_advanced(${i})
else ()
set (${PREFIX}_FOUND FALSE)
endif ()
endforeach (i)
# Print message and/or exit on fatal error
if (${PREFIX}_FOUND)
if (NOT ${PREFIX}_FIND_QUIETLY)
message (STATUS "Found ${PREFIX} ${${PREFIX}_VERSION}")
endif ()
else ()
if (${PREFIX}_FIND_REQUIRED)
foreach (i ${${PREFIX}_PROCESS_INCLUDES} ${${PREFIX}_PROCESS_LIBS})
message("${i}=${${i}}")
endforeach (i)
message (FATAL_ERROR "Required library ${PREFIX} NOT FOUND.\nInstall the library (dev version) and try again. If the library is already installed, use ccmake to set the missing variables manually.")
endif ()
endif ()
endif ()
endmacro (libfind_process)
macro(libfind_library PREFIX basename)
set(TMP "")
if(MSVC80)
set(TMP -vc80)
endif()
if(MSVC90)
set(TMP -vc90)
endif()
set(${PREFIX}_LIBNAMES ${basename}${TMP})
if(${ARGC} GREATER 2)
set(${PREFIX}_LIBNAMES ${basename}${TMP}-${ARGV2})
string(REGEX REPLACE "\\." "_" TMP ${${PREFIX}_LIBNAMES})
set(${PREFIX}_LIBNAMES ${${PREFIX}_LIBNAMES} ${TMP})
endif()
find_library(${PREFIX}_LIBRARY
NAMES ${${PREFIX}_LIBNAMES}
PATHS ${${PREFIX}_PKGCONF_LIBRARY_DIRS}
)
endmacro(libfind_library)
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