remove support for non-ANSI compilation

*** 17,26 ****
--- 17,27 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
   * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
   *
   *      Copyright (c) 1989 AT&T
   *        All Rights Reserved
   *
*** 42,66 ****
  
  /*
   * Information structures for various dlinfo() requests.
   */
  #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__)
- #ifdef __STDC__
  typedef struct  dl_info {
          const char      *dli_fname;     /* file containing address range */
          void            *dli_fbase;     /* base address of file image */
          const char      *dli_sname;     /* symbol name */
          void            *dli_saddr;     /* symbol address */
  } Dl_info;
- #else
- typedef struct  dl_info {
-         char            *dli_fname;
-         void            *dli_fbase;
-         char            *dli_sname;
-         void            *dli_saddr;
- } Dl_info;
- #endif /* __STDC__ */
  typedef Dl_info         Dl_info_t;
  
  typedef struct  dl_serpath {
          char            *dls_name;      /* library search path name */
          uint_t          dls_flags;      /* path information */
--- 43,58 ----
*** 112,122 ****
  typedef ulong_t         Lmid_t;
  
  /*
   * Declarations used for dynamic linking support routines.
   */
- #ifdef __STDC__
  extern void     *dlopen(const char *, int);
  extern void     *dlsym(void *_RESTRICT_KYWD, const char *_RESTRICT_KYWD);
  extern int      dlclose(void *);
  extern char     *dlerror(void);
  #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__)
--- 104,113 ----
*** 125,148 ****
  extern int      dladdr1(void *, Dl_info *, void **, int);
  extern int      dldump(const char *, const char *, int);
  extern int      dlinfo(void *, int, void *);
  extern Dl_amd64_unwindinfo  *dlamd64getunwind(void *, Dl_amd64_unwindinfo *);
  #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */
- #else
- extern void     *dlopen();
- extern void     *dlsym();
- extern int      dlclose();
- extern char     *dlerror();
- #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__)
- extern void     *dlmopen();
- extern int      dladdr();
- extern int      dladdr1();
- extern int      dldump();
- extern int      dlinfo();
- extern Dl_amd64_unwindinfo  *dlamd64getunwind();
- #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */
- #endif /* __STDC__ */
  
  #pragma unknown_control_flow(dlopen, dlsym, dlclose, dlerror)
  #if !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__)
  #pragma unknown_control_flow(dlmopen, dladdr, dladdr1, dldump, dlinfo)
  #endif /* !defined(_XOPEN_SOURCE) || defined(__EXTENSIONS__) */
--- 116,125 ----