Added wchar.h to fix build on some platforms with new wcs* functions

CMakeLists.txt

@@ -615,7 +615,7 @@ endif()
 if(LIBC)
   if(WINDOWS AND NOT MINGW)
     set(HAVE_LIBC TRUE)
-    foreach(_HEADER stdio.h string.h ctype.h math.h)
+    foreach(_HEADER stdio.h string.h wchar.h ctype.h math.h)
       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
       string(REPLACE "." "_" _HAVE_H ${_UPPER})
       set(${_HAVE_H} 1)
@@ -642,7 +642,7 @@ if(LIBC)
     check_include_file(sys/types.h HAVE_SYS_TYPES_H)
     foreach(_HEADER
             stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h
-            strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
+            strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
       string(TOUPPER "HAVE_${_HEADER}" _UPPER)
       string(REPLACE "." "_" _HAVE_H ${_UPPER})
       check_include_file("${_HEADER}" ${_HAVE_H})

configure

@@ -16167,7 +16167,7 @@ $as_echo "#define STDC_HEADERS 1" >>confdefs.h
 
 fi
 
-    for ac_header in sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h
+    for ac_header in sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"

configure.in

@@ -234,7 +234,7 @@ if test x$enable_libc = xyes; then
 
     dnl Check for C library headers
     AC_HEADER_STDC
-    AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
+    AC_CHECK_HEADERS(sys/types.h stdio.h stdlib.h stddef.h stdarg.h malloc.h memory.h string.h strings.h wchar.h inttypes.h stdint.h ctype.h math.h iconv.h signal.h)
 
     dnl Check for typedefs, structures, etc.
     AC_TYPE_SIZE_T

include/SDL_config.h.cmake

@@ -73,6 +73,7 @@
 #cmakedefine HAVE_MEMORY_H 1
 #cmakedefine HAVE_STRING_H 1
 #cmakedefine HAVE_STRINGS_H 1
+#cmakedefine HAVE_WCHAR_H 1
 #cmakedefine HAVE_INTTYPES_H 1
 #cmakedefine HAVE_STDINT_H 1
 #cmakedefine HAVE_CTYPE_H 1

include/SDL_config.h.in

@@ -73,6 +73,7 @@
 #undef HAVE_MEMORY_H
 #undef HAVE_STRING_H
 #undef HAVE_STRINGS_H
+#undef HAVE_WCHAR_H
 #undef HAVE_INTTYPES_H
 #undef HAVE_STDINT_H
 #undef HAVE_CTYPE_H

include/SDL_stdinc.h

@@ -62,6 +62,9 @@
 #ifdef HAVE_STRINGS_H
 # include <strings.h>
 #endif
+#ifdef HAVE_WCHAR_H
+# include <wchar.h>
+#endif
 #if defined(HAVE_INTTYPES_H)
 # include <inttypes.h>
 #elif defined(HAVE_STDINT_H)