cmake: export <atomic> availability (fixes google#667)

sergiud · Jun 15, 2021 · a4ffd96 · a4ffd96
1 parent c1499f6
commit a4ffd96
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -398,6 +398,10 @@ if (HAVE_EXECINFO_H)
   set (HAVE_STACKTRACE 1)
 endif (HAVE_EXECINFO_H)
 
+if (HAVE_CXX11_ATOMIC)
+  set (ac_cv_cxx11_atomic 1)
+endif (HAVE_CXX11_ATOMIC)
+
 if (WITH_SYMBOLIZE)
   if (WIN32 OR CYGWIN)
     cmake_push_check_state (RESET)
@@ -466,7 +470,7 @@ else (WITH_THREADS AND Threads_FOUND)
   set (NO_THREADS 1)
 endif (WITH_THREADS AND Threads_FOUND)
 
-# fopen/open on Cygwin can not handle unix-type paths like /home/.... 
+# fopen/open on Cygwin can not handle unix-type paths like /home/....
 # therefore we translate TEST_SRC_DIR to windows-path.
 if (CYGWIN)
   execute_process (COMMAND cygpath.exe -m ${CMAKE_CURRENT_SOURCE_DIR}

diff --git a/src/glog/logging.h.in b/src/glog/logging.h.in
@@ -99,7 +99,7 @@
 #include <gflags/gflags.h>
 #endif
 
-#ifdef HAVE_CXX11_ATOMIC
+#if @ac_cv_have_cxx11_atomic@
 #include <atomic>
 #elif defined(OS_WINDOWS)
 #include <Windows.h>