Merge pull request #1609 from martin-frbg/issue1529

Create OpenBLASConfig.cmake in cmake builds as well

Author: martin-frbg

CMakeLists.txt

@@ -12,6 +12,9 @@ set(OpenBLAS_VERSION "${OpenBLAS_MAJOR_VERSION}.${OpenBLAS_MINOR_VERSION}.${Open
 # Adhere to GNU filesystem layout conventions
 include(GNUInstallDirs)
 
+include(CMakePackageConfigHelpers)
+
+
 set(OpenBLAS_LIBNAME openblas)
 
 #######
@@ -20,6 +23,7 @@ option(BUILD_WITHOUT_LAPACK "Without LAPACK and LAPACKE (Only BLAS or CBLAS)" ON
 endif()
 option(BUILD_WITHOUT_CBLAS "Without CBLAS" OFF)
 option(DYNAMIC_ARCH "Build with DYNAMIC_ARCH" OFF)
+option(DYNAMIC_OLDER "Support older cpus with DYNAMIC_ARCH" OFF)
 option(BUILD_RELAPACK "Build with ReLAPACK (recursive LAPACK" OFF)
 #######
 if(BUILD_WITHOUT_LAPACK)
@@ -208,6 +212,7 @@ set_target_properties(${OpenBLAS_LIBNAME} PROPERTIES
 
 # Install libraries
 install(TARGETS ${OpenBLAS_LIBNAME}
+	EXPORT "OpenBLASTargets"
 	RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
   LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} )
@@ -267,3 +272,21 @@ if(PKG_CONFIG_FOUND)
 	configure_file(${PROJECT_SOURCE_DIR}/cmake/openblas.pc.in ${PROJECT_BINARY_DIR}/openblas.pc @ONLY)
 	install (FILES ${PROJECT_BINARY_DIR}/openblas.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig/)
 endif()
+
+
+# GNUInstallDirs "DATADIR" wrong here; CMake search path wants "share".
+set(PN OpenBLAS)
+set(CMAKECONFIG_INSTALL_DIR "share/cmake/${PN}")
+configure_package_config_file(cmake/${PN}Config.cmake.in
+                              "${CMAKE_CURRENT_BINARY_DIR}/${PN}Config.cmake"
+                              INSTALL_DESTINATION ${CMAKECONFIG_INSTALL_DIR})
+write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/${PN}ConfigVersion.cmake
+                                 VERSION ${${PN}_VERSION}
+                                 COMPATIBILITY AnyNewerVersion)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PN}Config.cmake
+              ${CMAKE_CURRENT_BINARY_DIR}/${PN}ConfigVersion.cmake
+        DESTINATION ${CMAKECONFIG_INSTALL_DIR})
+install(EXPORT "${PN}Targets"
+        NAMESPACE "${PN}::"
+        DESTINATION ${CMAKECONFIG_INSTALL_DIR})
+

cmake/OpenBLASConfig.cmake.in

@@ -0,0 +1,79 @@
+# OpenBLASConfig.cmake
+# --------------------
+#
+# OpenBLAS cmake module.
+# This module sets the following variables in your project::
+#
+#   OpenBLAS_FOUND - true if OpenBLAS and all required components found on the system
+#   OpenBLAS_VERSION - OpenBLAS version in format Major.Minor.Release
+#   OpenBLAS_INCLUDE_DIRS - Directory where OpenBLAS header is located.
+#   OpenBLAS_INCLUDE_DIR - same as DIRS
+#   OpenBLAS_LIBRARIES - OpenBLAS library to link against.
+#   OpenBLAS_LIBRARY - same as LIBRARIES
+#
+#
+# Available components::
+#
+##   shared - search for only shared library
+##   static - search for only static library
+#   serial - search for unthreaded library
+#   pthread - search for native pthread threaded library
+#   openmp - search for OpenMP threaded library
+#
+#
+# Exported targets::
+#
+# If OpenBLAS is found, this module defines the following :prop_tgt:`IMPORTED`
+## target. Target is shared _or_ static, so, for both, use separate, not
+## overlapping, installations. ::
+#
+#   OpenBLAS::OpenBLAS - the main OpenBLAS library #with header & defs attached.
+#
+#
+# Suggested usage::
+#
+#   find_package(OpenBLAS)
+#   find_package(OpenBLAS 0.2.20 EXACT CONFIG REQUIRED COMPONENTS pthread)
+#
+#
+# The following variables can be set to guide the search for this package::
+#
+#   OpenBLAS_DIR - CMake variable, set to directory containing this Config file
+#   CMAKE_PREFIX_PATH - CMake variable, set to root directory of this package
+#   PATH - environment variable, set to bin directory of this package
+#   CMAKE_DISABLE_FIND_PACKAGE_OpenBLAS - CMake variable, disables
+#     find_package(OpenBLAS) when not REQUIRED, perhaps to force internal build
+
+@PACKAGE_INIT@
+
+set(PN OpenBLAS)
+
+# need to check that the @USE_*@ evaluate to something cmake can perform boolean logic upon
+if(@USE_OPENMP@)
+    set(${PN}_openmp_FOUND 1)
+elseif(@USE_THREAD@)
+    set(${PN}_pthread_FOUND 1)
+else()
+    set(${PN}_serial_FOUND 1)
+endif()
+
+check_required_components(${PN})
+
+#-----------------------------------------------------------------------------
+# Don't include targets if this file is being picked up by another
+# project which has already built this as a subproject
+#-----------------------------------------------------------------------------
+if(NOT TARGET ${PN}::OpenBLAS)
+    include("${CMAKE_CURRENT_LIST_DIR}/${PN}Targets.cmake")
+
+    get_property(_loc TARGET ${PN}::OpenBLAS PROPERTY LOCATION)
+    set(${PN}_LIBRARY ${_loc})
+    get_property(_ill TARGET ${PN}::OpenBLAS PROPERTY INTERFACE_LINK_LIBRARIES)
+    set(${PN}_LIBRARIES ${_ill})
+
+    get_property(_id TARGET ${PN}::OpenBLAS PROPERTY INCLUDE_DIRECTORIES)
+    set(${PN}_INCLUDE_DIR ${_id})
+    get_property(_iid TARGET ${PN}::OpenBLAS PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
+    set(${PN}_INCLUDE_DIRS ${_iid})
+endif()
+