[BUILD] remove automatic search of includes for 'libatomic'

This patch removes the automatic search of includes for 'libatomic'
since the includes for this library are part of the C11 standard
shipped with each compiler.

1 files changed, 2 insertions, 10 deletions

diff --git a/cmake/FindLibatomic.cmake b/cmake/FindLibatomic.cmake
index 4f7dea2..e1c4915 100644
--- a/cmake/FindLibatomic.cmake
+++ b/cmake/FindLibatomic.cmake
@@ -11,10 +11,6 @@ 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 ${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}
-                ${PKG_Libatomic_INCLUDE_DIRS})
 find_library(Libatomic_LIBRARY
              NAMES atomic
              HINTS ${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}
@@ -24,7 +20,6 @@ include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(Libatomic
                                   FOUND_VAR Libatomic_FOUND
                                   REQUIRED_VARS Libatomic_LIBRARY
-                                                Libatomic_INCLUDE_DIR
                                   VERSION_VAR Libatomic_VERSION
                                   FAIL_MESSAGE "Library 'atomic' is not available! Please install this required library!")
 
@@ -32,22 +27,19 @@ 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 "${Libatomic_INCLUDE_DIR}")
+                          INTERFACE_COMPILE_OPTIONS "${Libatomic_COMPILE_OPTIONS}")
 endif(Libatomic_FOUND AND NOT TARGET Libatomic::Libatomic)
 
-mark_as_advanced(Libatomic_LIBRARY Libatomic_INCLUDE_DIR)
+mark_as_advanced(Libatomic_LIBRARY)
 
 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")