make: unifdef SUN5_0 (defined)

@@ -47,13 +47,11 @@
 #include <stdarg.h>             /* va_list, va_start(), va_end() */
 #include <stdlib.h>             /* mbstowcs() */
 #include <sys/signal.h>         /* SIG_DFL */
 #include <sys/wait.h>           /* wait() */
 
-#ifdef SUN5_0
 #include <string.h>             /* strerror() */
-#endif
 
 #if defined (HP_UX) || defined (linux)
 #include <unistd.h>
 #endif
 

@@ -66,23 +64,16 @@
  */
 
 /*
  * Static variables
  */
-#ifdef SUN5_0
 extern "C" {
         void            (*sigivalue)(int) = SIG_DFL;
         void            (*sigqvalue)(int) = SIG_DFL;
         void            (*sigtvalue)(int) = SIG_DFL;
         void            (*sighvalue)(int) = SIG_DFL;
 }
-#else
-static  void            (*sigivalue)(int) = (void (*) (int)) SIG_DFL;
-static  void            (*sigqvalue)(int) = (void (*) (int)) SIG_DFL;
-static  void            (*sigtvalue)(int) = (void (*) (int)) SIG_DFL;
-static  void            (*sighvalue)(int) = (void (*) (int)) SIG_DFL;
-#endif
 
 long    getname_bytes_count = 0;
 long    getname_names_count = 0;
 long    getname_struct_count = 0;
 

@@ -120,13 +111,11 @@
         if (result == NULL) {
                 char buf[FATAL_ERROR_MSG_SIZE];
                 sprintf(buf, NOCATGETS("*** Error: malloc(%d) failed: %s\n"), size, strerror(errno));
                 strcat(buf, catgets(libmksdmsi18n_catd, 1, 126, "mksh: Fatal error: Out of memory\n"));
                 fputs(buf, stderr);
-#ifdef SUN5_0
                 exit_status = 1;
-#endif
                 exit(1);
         }
         return result;
 }
 

@@ -282,36 +271,20 @@
  *              sighvalue       The original signal handler
  */
 void
 enable_interrupt(register void (*handler) (int))
 {
-#ifdef SUN5_0
         if (sigivalue != SIG_IGN) {
-#else
-        if (sigivalue != (void (*) (int)) SIG_IGN) {
-#endif
                 (void) bsd_signal(SIGINT, (SIG_PF) handler);
         }
-#ifdef SUN5_0
         if (sigqvalue != SIG_IGN) {
-#else
-        if (sigqvalue != (void (*) (int)) SIG_IGN) {
-#endif
                 (void) bsd_signal(SIGQUIT, (SIG_PF) handler);
         }
-#ifdef SUN5_0
         if (sigtvalue != SIG_IGN) {
-#else
-        if (sigtvalue != (void (*) (int)) SIG_IGN) {
-#endif
                 (void) bsd_signal(SIGTERM, (SIG_PF) handler);
         }
-#ifdef SUN5_0
         if (sighvalue != SIG_IGN) {
-#else
-        if (sighvalue != (void (*) (int)) SIG_IGN) {
-#endif
                 (void) bsd_signal(SIGHUP, (SIG_PF) handler);
         }
 }
 
 /*

@@ -392,13 +365,11 @@
                 return errbuf;
         } else {
 #ifdef SUN4_x
                 return(sys_errlist[errnum]);
 #endif
-#ifdef SUN5_0
                 return strerror(errnum);
-#endif
 
         }
 #endif // linux
 }
 

@@ -453,13 +424,11 @@
         (void) fputs(buf, stderr);
         (void) fflush(stderr);
         if (buf != static_buf) {
                 retmem_mb(buf);
         }
-#ifdef SUN5_0
         exit_status = 1;
-#endif
         exit(1);
 }
 
 /*
  *      fatal_reader_mksh(format, args...)

@@ -517,13 +486,11 @@
                 (void) fprintf(stderr,
                                catgets(libmksdmsi18n_catd, 1, 133, "Current working directory %s\n"),
                                get_current_path_mksh());
         }
         (void) fflush(stderr);
-#ifdef SUN5_0
         exit_status = 1;
-#endif
         exit(1);
 }
 
 /*
  *      warning_mksh(format, args...)

@@ -571,15 +538,11 @@
 {
         char                    pwd[(MAXPATHLEN * MB_LEN_MAX)];
         static char             *current_path;
 
         if (current_path == NULL) {
-#if defined(SUN5_0) || defined(HP_UX) || defined(linux)
                 getcwd(pwd, sizeof(pwd));
-#else
-                (void) getwd(pwd);
-#endif
                 if (pwd[0] == (int) nul_char) {
                         pwd[0] = (int) slash_char;
                         pwd[1] = (int) nul_char;
                 }
                 current_path = strdup(pwd);

@@ -864,18 +827,12 @@
         /* Make sure the processes running under us terminate first. */
         if (childPid > 0) {
                 kill(childPid, SIGTERM);
                 childPid = -1;
         }
-#if defined(SUN5_0) || defined(HP_UX) || defined(linux)
         while (wait((int *) NULL) != -1);
-#if defined(SUN5_0)
         exit_status = 2;
-#endif
-#else
-        while (wait((union wait *) NULL) != -1);
-#endif
         exit(2);
 }
 
 /*
  *      setup_interrupt()

@@ -891,21 +848,14 @@
  *              sighvalue       The original signal handler
  */
 void
 setup_interrupt(register void (*handler) (int))
 {
-#ifdef SUN5_0
         sigivalue = bsd_signal(SIGINT, SIG_IGN);
         sigqvalue = bsd_signal(SIGQUIT, SIG_IGN);
         sigtvalue = bsd_signal(SIGTERM, SIG_IGN);
         sighvalue = bsd_signal(SIGHUP, SIG_IGN);
-#else
-        sigivalue = (void (*) (int)) bsd_signal(SIGINT, SIG_IGN);
-        sigqvalue = (void (*) (int)) bsd_signal(SIGQUIT, SIG_IGN);
-        sigtvalue = (void (*) (int)) bsd_signal(SIGTERM, SIG_IGN);
-        sighvalue = (void (*) (int)) bsd_signal(SIGHUP, SIG_IGN);
-#endif
         enable_interrupt(handler);
 }
 
 
 void