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# - try to find Qwt libraries and include files
# QWT_INCLUDE_DIR where to find qwt_global.h, etc.
# QWT_LIBRARIES libraries to link against
# QWT_FOUND If false, do not try to use Qwt
# qwt_global.h holds a string with the QWT version;
# test to make sure it's at least 5.2
FIND_PACKAGE(PkgConfig REQUIRED)
pkg_check_modules(PC_QWT "Qt5Qwt6")
set(QWT_QT_VERSION qt5)
find_path(QWT_INCLUDE_DIRS
NAMES qwt_global.h
HINTS
${PC_QWT_INCLUDEDIR}
${CMAKE_INSTALL_PREFIX}/include/qwt
${CMAKE_PREFIX_PATH}/include/qwt
PATHS
/usr/local/include/qwt-${QWT_QT_VERSION}
/usr/local/include/qwt
/usr/include/qwt6
/usr/include/qt5/qwt
/usr/include/qwt-${QWT_QT_VERSION}
/usr/include/qwt
/usr/include/${QWT_QT_VERSION}/qwt
/usr/include/qwt5
/opt/local/include/qwt
/sw/include/qwt
/usr/local/lib/qwt.framework/Headers
)
find_library(QWT_LIBRARIES
NAMES ${PC_QWT_LIBRARIES} qwt6-${QWT_QT_VERSION} qwt-${QWT_QT_VERSION} qwt5 libqwt5.so
HINTS
${PC_QWT_LIBDIR}
${CMAKE_INSTALL_PREFIX}/lib
${CMAKE_INSTALL_PREFIX}/lib64
${CMAKE_PREFIX_PATH}/lib
PATHS
/usr/local/lib
/usr/lib
/opt/local/lib
/sw/lib
/usr/local/lib/qwt.framework
)
set(QWT_FOUND FALSE)
if(QWT_INCLUDE_DIRS)
file(STRINGS "${QWT_INCLUDE_DIRS}/qwt_global.h"
QWT_STRING_VERSION REGEX "QWT_VERSION_STR")
set(QWT_WRONG_VERSION True)
set(QWT_VERSION "No Version")
string(REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" QWT_VERSION ${QWT_STRING_VERSION})
string(COMPARE LESS ${QWT_VERSION} "5.2.0" QWT_WRONG_VERSION)
string(COMPARE GREATER ${QWT_VERSION} "6.2.0" QWT_WRONG_VERSION)
message(STATUS "QWT Version: ${QWT_VERSION}")
if(NOT QWT_WRONG_VERSION)
set(QWT_FOUND TRUE)
else(NOT QWT_WRONG_VERSION)
message(STATUS "QWT Version must be >= 5.2 and <= 6.2.0, Found ${QWT_VERSION}")
endif(NOT QWT_WRONG_VERSION)
endif(QWT_INCLUDE_DIRS)
if(QWT_FOUND)
message("qwt: found")
# handle the QUIETLY and REQUIRED arguments and set QWT_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Qwt DEFAULT_MSG QWT_LIBRARIES QWT_INCLUDE_DIRS)
MARK_AS_ADVANCED(QWT_LIBRARIES QWT_INCLUDE_DIRS)
if(Qwt_FOUND AND NOT TARGET qwt::qwt)
add_library(qwt::qwt INTERFACE IMPORTED)
set_target_properties(qwt::qwt PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${QWT_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${QWT_LIBRARIES}"
)
endif()
endif(QWT_FOUND)
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