Fix warnings

Author: isuruf

runtime/flang/global.h

@@ -19,6 +19,7 @@
  * \brief Global definitions and declarations for Fortran I/O library
  */
 
+#include "stdio.h"
 #include "fioMacros.h"
 #include "stdioInterf.h" /* stubbed version of stdio.h */
 #include "cnfg.h"    /* declarations for configuration items */
@@ -51,11 +52,6 @@ typedef unsigned short WCHAR;
 
 #define VOID void
 
-WIN_MSVCRT_IMP char *WIN_CDECL getenv(const char *);
-WIN_MSVCRT_IMP long WIN_CDECL strtol(const char *, char **, int);
-WIN_MSVCRT_IMP char *WIN_CDECL strerror(int);
-WIN_MSVCRT_IMP char *WIN_CDECL strstr(const char *, const char *);
-
 typedef __INT_T INT;       /* native integer at least 32 bits */
 typedef unsigned int UINT; /* unsigned 32 bit native integer */
 #define ISDIGIT(c) ((c) >= '0' && (c) <= '9')

runtime/flang/rename3f.c

@@ -23,7 +23,6 @@
 #include "io3f.h"
 #include "ent3f.h"
 
-extern int rename();
 extern char *__fstr2cstr();
 extern void __cstr_free();
 

runtime/flangrti/round.c

@@ -16,8 +16,7 @@
  */
 
 #include "mthdecls.h"
-
-extern float roundf(float);
+#include "math.h"
 
 float
 __mth_i_round(float x)

runtime/include/stdioInterf.h

@@ -114,11 +114,6 @@ int __io_feof(FILE *);
 int __io_ferror(FILE *);
 size_t __io_fwrite(const void *, size_t, size_t, FILE *);
 int __io_timezone(void *);
-int fclose(FILE *);
-int fflush(FILE *);
-int __io_fputc(int, FILE *);
-FILE *tmpfile(void);
-char *tmpnam(char *);
 char *__io_tempnam(const char *, const char *);
 
 extern void *__aligned_malloc(size_t, size_t); /* pgmemalign.c */