Merge branch '10.2' into 10.3

Author: sanja-byelkin

config.h.cmake

@@ -567,3 +567,5 @@
 #endif // !defined(__STDC_FORMAT_MACROS)
 
 #endif
+
+#cmakedefine HAVE_VFORK 1

configure.cmake

@@ -1018,3 +1018,19 @@ IF(NOT MSVC)
  HAVE_FALLOC_PUNCH_HOLE_AND_KEEP_SIZE
  )
 ENDIF()
+
+MY_CHECK_C_COMPILER_FLAG("-Werror")
+IF(have_C__Werror)
+ SET(SAVE_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+ SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror")
+ CHECK_C_SOURCE_COMPILES("
+ #include <unistd.h>
+ int main()
+ {
+ pid_t pid=vfork();
+ return (int)pid;
+ }"
+ HAVE_VFORK
+ )
+ SET(CMAKE_REQUIRED_FLAGS ${SAVE_CMAKE_REQUIRED_FLAGS})
+ENDIF()