Define wasi-libc emulation macros in header directly

because it seems ClangImporter doesn't care about config_macros

Author: kateinoigakukun

CoreFoundation/Base.subproj/SwiftRuntime/CoreFoundation.h

@@ -22,6 +22,16 @@
 
 #if !defined(CF_EXCLUDE_CSTD_HEADERS)
 
+#ifndef _WASI_EMULATED_MMAN
+#  define _WASI_EMULATED_MMAN
+#endif
+#ifndef _WASI_EMULATED_SIGNAL
+#  define _WASI_EMULATED_SIGNAL
+#endif
+#ifndef _WASI_EMULATED_PROCESS_CLOCKS
+#  define _WASI_EMULATED_PROCESS_CLOCKS
+#endif
+
 #include <sys/types.h>
 #include <stdarg.h>
 #include <assert.h>

CoreFoundation/Base.subproj/static/wasm32-unknown-wasi.modulemap

@@ -3,7 +3,6 @@
 module CoreFoundation [extern_c] [system] {
     umbrella header "CoreFoundation.h"
     explicit module CFPlugInCOM { header "CFPlugInCOM.h" }
-    config_macros _WASI_EMULATED_MMAN, _WASI_EMULATED_SIGNAL, _WASI_EMULATED_PROCESS_CLOCKS
 
     link "icui18n"
 }