Merge pull request #332 from Erroneous1/master

Export xlnt::xlnt target when installed.

cmake/XlntConfig.cmake.in

@@ -0,0 +1,13 @@
+set(XLNT_VERSION "@xlnt_VERSION@")
+
+@PACKAGE_INIT@
+
+get_filename_component(XLNT_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
+
+set_and_check(XLNT_INCLUDE_DIR "@XLNT_INCLUDE_INSTALL_DIR@")
+
+check_required_components(xlnt)
+
+if(NOT TARGET xlnt::xlnt)
+  include("${XLNT_CMAKE_DIR}/XlntTargets.cmake")
+endif()

source/CMakeLists.txt

@@ -98,6 +98,7 @@ file(GLOB DETAIL_NUMBER_FORMAT_SOURCES ${XLNT_SOURCE_DIR}/detail/number_format/*
 file(GLOB DETAIL_SERIALIZATION_HEADERS ${XLNT_SOURCE_DIR}/detail/serialization/*.hpp)
 file(GLOB DETAIL_SERIALIZATION_SOURCES ${XLNT_SOURCE_DIR}/detail/serialization/*.cpp)
 
+
 set(DETAIL_HEADERS ${DETAIL_ROOT_HEADERS} ${DETAIL_CRYPTOGRAPHY_HEADERS}
   ${DETAIL_EXTERNAL_HEADERS} ${DETAIL_HEADER_FOOTER_HEADERS}
   ${DETAIL_IMPLEMENTATIONS_HEADERS} ${DETAIL_NUMBER_FORMAT_HEADERS}
@@ -135,6 +136,19 @@ endif()
 # Append "d" to the name of the compiled library
 set(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "Set debug library postfix")
 
+include(GNUInstallDirs)
+
+set(XLNT_INC_DEST_DIR ${CMAKE_INSTALL_INCLUDEDIR}
+	CACHE PATH "Default location to install include files")
+set(XLNT_LIB_DEST_DIR ${CMAKE_INSTALL_LIBDIR}
+	CACHE PATH "Default location to install library files")
+set(XLNT_BIN_DEST_DIR ${CMAKE_INSTALL_BINDIR}
+	CACHE PATH "Default location to install runtime files")
+set(XLNT_MAN_DEST_DIR ${CMAKE_INSTALL_MANDIR}
+	CACHE PATH "Default location to install runtime files")
+set(XLNT_CMAKE_CFG_DEST_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+	CACHE PATH "Default location to install CMake config files")
+
 if(NOT STATIC)
   # Compile shared library
   add_library(xlnt SHARED
@@ -149,7 +163,7 @@ if(NOT STATIC)
     PROPERTIES
     VERSION ${PROJECT_VERSION}
     SOVERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
-    INSTALL_NAME_DIR "${LIB_DEST_DIR}")
+    INSTALL_NAME_DIR "${XLNT_LIB_DEST_DIR}")
 else()
   # Compile static library
   add_library(xlnt STATIC ${XLNT_HEADERS} ${XLNT_SOURCES} $<TARGET_OBJECTS:libstudxml>)
@@ -160,10 +174,14 @@ endif()
 #target_compile_features(xlnt PUBLIC cxx_std_${XLNT_CXX_LANG})
 
 # Includes
-target_include_directories(xlnt PUBLIC ${XLNT_INCLUDE_DIR})
+target_include_directories(xlnt
-target_include_directories(xlnt PRIVATE ${XLNT_SOURCE_DIR})
+	PUBLIC
-target_include_directories(xlnt PRIVATE ${XLNT_SOURCE_DIR}/../third-party/libstudxml)
+	$<BUILD_INTERFACE:${XLNT_INCLUDE_DIR}>
-target_include_directories(xlnt PRIVATE ${XLNT_SOURCE_DIR}/../third-party/utfcpp)
+	$<INSTALL_INTERFACE:${XLNT_INC_DEST_DIR}>
+	PRIVATE
+	${XLNT_SOURCE_DIR}
+	${XLNT_SOURCE_DIR}/../third-party/libstudxml
+	${XLNT_SOURCE_DIR}/../third-party/utfcpp)
 
 # Platform- and file-specific settings, MSVC
 if(MSVC)
@@ -216,40 +234,43 @@ source_group(utils FILES ${UTILS_HEADERS} ${UTILS_SOURCES})
 source_group(workbook FILES ${WORKBOOK_HEADERS} ${WORKBOOK_SOURCES})
 source_group(worksheet FILES ${WORKSHEET_HEADERS} ${WORKSHEET_SOURCES})
 
-if(NOT INC_DEST_DIR)
-  # Default location to install include files
-  set(INC_DEST_DIR ${CMAKE_INSTALL_PREFIX}/include)
-endif()
-
-if(NOT LIB_DEST_DIR)
-  # Default location to install library files
-  set(LIB_DEST_DIR ${CMAKE_INSTALL_PREFIX}/lib)
-endif()
-
-if(NOT BIN_DEST_DIR)
-  # Default location to install runtime files
-   set(BIN_DEST_DIR ${CMAKE_INSTALL_PREFIX}/bin)
-endif()
-
-if(NOT MAN_DEST_DIR)
-  # Default location to install runtime files
-   set(MAN_DEST_DIR ${CMAKE_INSTALL_PREFIX}/share/man)
-endif()
-
 # Install library
-install(TARGETS xlnt
+install(TARGETS xlnt EXPORT XlntTargets
-  LIBRARY DESTINATION ${LIB_DEST_DIR}
+  LIBRARY DESTINATION ${XLNT_LIB_DEST_DIR}
-  ARCHIVE DESTINATION ${LIB_DEST_DIR}
+  ARCHIVE DESTINATION ${XLNT_LIB_DEST_DIR}
-  RUNTIME DESTINATION ${BIN_DEST_DIR})
+  RUNTIME DESTINATION ${XLNT_BIN_DEST_DIR})
+
+install(EXPORT XlntTargets
+  FILE XlntTargets.cmake
+  NAMESPACE xlnt::
+  DESTINATION ${XLNT_CMAKE_CFG_DEST_DIR})
+
+include(CMakePackageConfigHelpers)
+
+set(XLNT_INCLUDE_INSTALL_DIR ${XLNT_INC_DEST_DIR})
+
+#See https://cmake.org/cmake/help/latest/module/CMakePackageConfigHelpers.html
+configure_package_config_file(../cmake/XlntConfig.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/XlntConfig.cmake
+  INSTALL_DESTINATION ${XLNT_CMAKE_CFG_DEST_DIR}
+  PATH_VARS XLNT_INCLUDE_DIR)
+
+write_basic_package_version_file(XlntConfigVersion.cmake
+  COMPATIBILITY ExactVersion)
+
+install(FILES
+  ${CMAKE_CURRENT_BINARY_DIR}/XlntConfig.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/XlntConfigVersion.cmake
+  DESTINATION ${XLNT_CMAKE_CFG_DEST_DIR})
 
 # Install include directory
 install(DIRECTORY ${XLNT_INCLUDE_DIR}/xlnt
-  DESTINATION include
+  DESTINATION ${XLNT_INC_DEST_DIR}
   PATTERN ".DS_Store" EXCLUDE)
 
 # Install LICENSE.md
 install(FILES ${XLNT_ROOT_DIR}/docs/xlnt.3
-DESTINATION ${MAN_DEST_DIR}/man3)
+DESTINATION ${XLNT_MAN_DEST_DIR}/man3)
 
 # Configure uninstall
 configure_file("${XLNT_ROOT_DIR}/cmake/cmake_uninstall.cmake.in"
@@ -263,8 +284,8 @@ add_custom_target(uninstall
 
 if(NOT MSVC)
   # Set pkg-config variables
-  set(PKG_CONFIG_LIBDIR ${LIB_DEST_DIR})
+  set(PKG_CONFIG_LIBDIR ${XLNT_LIB_DEST_DIR})
-  set(PKG_CONFIG_INCLUDEDIR ${INC_DEST_DIR})
+  set(PKG_CONFIG_INCLUDEDIR ${XLNT_INC_DEST_DIR})
   set(PKG_CONFIG_LIBS "-L\${libdir} -lxlnt")
   set(PKG_CONFIG_CFLAGS "-I\${includedir}")
 
@@ -274,5 +295,5 @@ if(NOT MSVC)
 
   # pkg-config install
   install(FILES "${CMAKE_CURRENT_BINARY_DIR}/xlnt.pc"
-    DESTINATION ${LIB_DEST_DIR}/pkgconfig)
+    DESTINATION ${XLNT_LIB_DEST_DIR}/pkgconfig)
 endif()