build: fix mkdtemp check on macOS

On macOS, mkdtemp is in unistd.h. Fix the CMake check so that is works. This was discovered when comparing the output of the Autotools an CMake build systems.
zeromq · Mar 25, 2024 · 4a5ece5 · 4a5ece5
1 parent 45b2924
commit 4a5ece5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -605,7 +605,7 @@ if(NOT MSVC)
 
   check_cxx_symbol_exists(fork unistd.h HAVE_FORK)
   check_cxx_symbol_exists(gethrtime sys/time.h HAVE_GETHRTIME)
-  check_cxx_symbol_exists(mkdtemp stdlib.h HAVE_MKDTEMP)
+  check_cxx_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP)
   check_cxx_symbol_exists(accept4 sys/socket.h HAVE_ACCEPT4)
   check_cxx_symbol_exists(strnlen string.h HAVE_STRNLEN)
 else()