Move all (nano|u)sleep-related decisions to default port implementation (#2462)

... where they belong.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

jerry-port/default/CMakeLists.txt

@@ -26,6 +26,16 @@ file(GLOB SOURCE_PORT_DEFAULT *.c)
 # (should only be necessary if we used compiler default libc but not checking that)
 set(DEFINES_PORT_DEFAULT _BSD_SOURCE _DEFAULT_SOURCE)
 
+# Sleep function availability check
+INCLUDE (CheckIncludeFiles)
+CHECK_INCLUDE_FILES (time.h HAVE_TIME_H)
+CHECK_INCLUDE_FILES (unistd.h HAVE_UNISTD_H)
+if(HAVE_TIME_H)
+  set(DEFINES_PORT_DEFAULT ${DEFINES_PORT_DEFAULT} HAVE_TIME_H)
+elseif(HAVE_UNISTD_H)
+  set(DEFINES_PORT_DEFAULT ${DEFINES_PORT_DEFAULT} HAVE_UNISTD_H)
+endif()
+
 # Default Jerry port implementation library variants:
 #   - default
 #   - default-minimal (no extra termination and log APIs)

jerry-port/default/default-debugger.c

@@ -13,6 +13,12 @@
  * limitations under the License.
  */
 
+ #if !defined (_XOPEN_SOURCE) || _XOPEN_SOURCE < 500
+ #undef _XOPEN_SOURCE
+ /* Required macro for sleep functions (nanosleep or usleep) */
+ #define _XOPEN_SOURCE 500
+ #endif
+
 #ifdef HAVE_TIME_H
 #include <time.h>
 #elif defined (HAVE_UNISTD_H)