resolve conflict from #1017

src/error.c

@@ -7,6 +7,7 @@
 #include "mruby.h"
 #include <errno.h>
 #include <stdarg.h>
+#include <stdlib.h>
 #include <setjmp.h>
 #include <string.h>
 #include "error.h"

src/load.c

@@ -4,6 +4,7 @@
 ** See Copyright Notice in mruby.h
 */
 
+#include <stdlib.h>
 #include <string.h>
 #include "mruby/dump.h"
 

src/numeric.c

@@ -11,6 +11,7 @@
 
 #include <math.h>
 #include <assert.h>
+#include <stdlib.h>
 
 #if defined(__FreeBSD__) && __FreeBSD__ < 4
 #include <floatingpoint.h>

src/parse.y

@@ -25,6 +25,7 @@
 #include <errno.h>
 #include <ctype.h>
 #include <string.h>
+#include <stdlib.h>
 
 #define YYLEX_PARAM p
 

src/state.c

@@ -7,6 +7,8 @@
 #include "mruby.h"
 #include "mruby/irep.h"
 #include "mruby/variable.h"
+#include <stdlib.h>
+#include <string.h>
 
 void mrb_init_heap(mrb_state*);
 void mrb_init_core(mrb_state*);

src/string.c

@@ -6,8 +6,8 @@
 
 #include "mruby.h"
 
-#include <stdint.h>
 #include <stddef.h>
+#include <stdlib.h>
 #include <string.h>
 #include "mruby/string.h"
 #include "mruby/class.h"