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-rw-r--r--cmake/FindLibatomic.cmake50
1 files changed, 50 insertions, 0 deletions
diff --git a/cmake/FindLibatomic.cmake b/cmake/FindLibatomic.cmake
new file mode 100644
index 0000000..f827eae
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+++ b/cmake/FindLibatomic.cmake
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+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020 Manuel Bentele <development@manuel-bentele.de>
+#
+
+# Use pkg-config to get the directories and then use these values
+# in the FIND_PATH() and FIND_LIBRARY() calls
+find_package(PkgConfig QUIET)
+pkg_check_modules(PKG_Libatomic QUIET libatomic)
+
+set(Libatomic_COMPILE_OPTIONS ${PKG_Libatomic_CFLAGS_OTHER})
+set(Libatomic_VERSION ${PKG_Libatomic_VERSION})
+
+find_path(Libatomic_INCLUDE_DIR
+ NAMES stdatomic.h
+ HINTS ${PKG_Libatomic_INCLUDE_DIRS})
+find_library(Libatomic_LIBRARY
+ NAMES atomic
+ HINTS ${PKG_Libatomic_LIBRARY_DIRS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Libatomic
+ FOUND_VAR Libatomic_FOUND
+ REQUIRED_VARS Libatomic_LIBRARY
+ VERSION_VAR Libatomic_VERSION
+ FAIL_MESSAGE "Library 'atomic' is not available! Please install this required library!")
+
+if(Libatomic_FOUND AND NOT TARGET Libatomic::Libatomic)
+ add_library(Libatomic::Libatomic UNKNOWN IMPORTED)
+ set_target_properties(Libatomic::Libatomic PROPERTIES
+ IMPORTED_LOCATION "${Libatomic_LIBRARY}"
+ INTERFACE_COMPILE_OPTIONS "${Libatomic_COMPILE_OPTIONS}"
+ INTERFACE_INCLUDE_DIRECTORIES "${Libatomic_INCLUDE_DIR}")
+endif(Libatomic_FOUND AND NOT TARGET Libatomic::Libatomic)
+
+mark_as_advanced(Libatomic_LIBRARY Libatomic_INCLUDE_DIR)
+
+if(Libatomic_FOUND)
+ set(Libatomic_LIBRARIES ${Libatomic_LIBRARY})
+ set(Libatomic_INCLUDE_DIRS ${Libatomic_INCLUDE_DIR})
+endif(Libatomic_FOUND)
+
+# print found information
+if(${CMAKE_VERSION} VERSION_GREATER "3.15.0")
+ message(VERBOSE "Libatomic_FOUND: ${Libatomic_FOUND}")
+ message(VERBOSE "Libatomic_VERSION: ${Libatomic_VERSION}")
+ message(VERBOSE "Libatomic_INCLUDE_DIRS: ${Libatomic_INCLUDE_DIRS}")
+ message(VERBOSE "Libatomic_COMPILE_OPTIONS: ${Libatomic_COMPILE_OPTIONS}")
+ message(VERBOSE "Libatomic_LIBRARIES: ${Libatomic_LIBRARIES}")
+endif(${CMAKE_VERSION} VERSION_GREATER "3.15.0")