mirror of
https://github.com/rdkit/rdkit.git
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2b592950c9
* - allow defining a specific path to Cairo libraries and headers - link against Xau library if needed * changes in response to review * removed the libXau bit as it is not needed
100 lines
3.7 KiB
CMake
100 lines
3.7 KiB
CMake
# Grabbed from here:
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# https://github.com/avaucher/cmake-find-module-imported-target/blob/master/cmake/FindCairo.cmake
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# - Try to find Cairo
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# Once done, this will define
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#
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# CAIRO_FOUND - system has Cairo
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# CAIRO_INCLUDE_DIRS - the Cairo include directories
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# CAIRO_LIBRARIES - link these to use Cairo
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#
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# and the following imported targets::
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#
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# Cairo::Cairo - The Cairo library
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#
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#
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# Original work Copyright (C) 2012 Raphael Kubo da Costa <rakuco@webkit.org>
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# Modified work Copyright (C) 2017 Alain Vaucher
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND ITS CONTRIBUTORS ``AS
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# IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR ITS
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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FIND_PACKAGE(PkgConfig)
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PKG_CHECK_MODULES(PC_CAIRO cairo QUIET)
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FIND_PATH(CAIRO_INCLUDE_DIRS
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NAMES cairo.h
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HINTS ${CAIRO_INCLUDE_DIR}
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${PC_CAIRO_INCLUDEDIR}
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${PC_CAIRO_INCLUDE_DIRS}
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PATH_SUFFIXES cairo
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)
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FIND_LIBRARY(CAIRO_LIBRARIES
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NAMES cairo
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HINTS ${CAIRO_LIBRARY_DIR}
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${PC_CAIRO_LIBDIR}
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${PC_CAIRO_LIBRARY_DIRS}
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)
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IF (CAIRO_INCLUDE_DIRS)
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IF (EXISTS "${CAIRO_INCLUDE_DIRS}/cairo-version.h")
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FILE(READ "${CAIRO_INCLUDE_DIRS}/cairo-version.h" CAIRO_VERSION_CONTENT)
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STRING(REGEX MATCH "#define +CAIRO_VERSION_MAJOR +([0-9]+)" _dummy "${CAIRO_VERSION_CONTENT}")
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SET(CAIRO_VERSION_MAJOR "${CMAKE_MATCH_1}")
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STRING(REGEX MATCH "#define +CAIRO_VERSION_MINOR +([0-9]+)" _dummy "${CAIRO_VERSION_CONTENT}")
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SET(CAIRO_VERSION_MINOR "${CMAKE_MATCH_1}")
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STRING(REGEX MATCH "#define +CAIRO_VERSION_MICRO +([0-9]+)" _dummy "${CAIRO_VERSION_CONTENT}")
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SET(CAIRO_VERSION_MICRO "${CMAKE_MATCH_1}")
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SET(CAIRO_VERSION "${CAIRO_VERSION_MAJOR}.${CAIRO_VERSION_MINOR}.${CAIRO_VERSION_MICRO}")
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ENDIF ()
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ENDIF ()
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SET(VERSION_OK TRUE)
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IF (Cairo_FIND_VERSION)
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IF (Cairo_FIND_VERSION_EXACT)
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IF (NOT "${Cairo_FIND_VERSION}" VERSION_EQUAL "${CAIRO_VERSION}")
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SET(VERSION_OK FALSE)
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ENDIF ()
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ELSE ()
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IF ("${Cairo_FIND_VERSION}" VERSION_GREATER "${CAIRO_VERSION}")
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SET(VERSION_OK FALSE)
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ENDIF ()
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ENDIF ()
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ENDIF ()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Cairo
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FOUND_VAR Cairo_FOUND
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REQUIRED_VARS CAIRO_INCLUDE_DIRS CAIRO_LIBRARIES VERSION_OK
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)
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if(Cairo_FOUND AND NOT TARGET Cairo::Cairo)
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add_library(Cairo::Cairo INTERFACE IMPORTED)
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set_target_properties(Cairo::Cairo PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${CAIRO_INCLUDE_DIRS}"
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INTERFACE_LINK_LIBRARIES "${CAIRO_LIBRARIES}")
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endif()
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