configure.in: Call AC_FUNC_VFORK.

        * configure.in: Call AC_FUNC_VFORK.
        * collect2.c: Define VFORK_STRING as a printable string for
        error messages (either "vfork" or "fork".)  If HAVE_VFORK_H is
        defined, include vfork.h.  If VMS is defined, define vfork()
        appropriately.  Remove vfork check on USG, we're using autoconf.
        (collect_execute): Pass VFORK_STRING to fatal_perror instead of
        checking locally what string to pass.
        (scan_prog_file): Likewise.
        (scan_libraries): Likewise.
        * gcc.c: Remove vfork check on USG, we're using autoconf.
        Besides, no calls to vfork/fork occur in this file.
        * protoize.c: Likewise.

From-SVN: r23498

gcc/ChangeLog

+Mon Nov  2 10:10:35 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* configure.in: Call AC_FUNC_VFORK.
+
+	* collect2.c: Define VFORK_STRING as a printable string for
+ 	error messages (either "vfork" or "fork".)  If HAVE_VFORK_H is
+ 	defined, include vfork.h.  If VMS is defined, define vfork()
+	appropriately.  Remove vfork check on USG, we're using autoconf.
+	(collect_execute): Pass VFORK_STRING to fatal_perror instead of
+	checking locally what string to pass.
+	(scan_prog_file): Likewise.
+	(scan_libraries): Likewise.
+
+	* gcc.c: Remove vfork check on USG, we're using autoconf.
+	Besides, no calls to vfork/fork occur in this file.
+
+	* protoize.c: Likewise.
+
 Mon Nov  2 07:52:28 1998  Alexandre Oliva  <oliva@dcc.unicamp.br>
 
 	* configure.in (DEFAULT_LINKER): renamed from LD

gcc/collect2.c

@@ -30,6 +30,19 @@ Boston, MA 02111-1307, USA.  */
 #include <signal.h>
 #include <sys/stat.h>
 
+#ifdef vfork /* Autoconf may define this to fork for us. */
+# define VFORK_STRING "fork"
+#else
+# define VFORK_STRING "vfork"
+#endif
+#ifdef HAVE_VFORK_H
+#include <vfork.h>
+#endif
+#ifdef VMS
+#define vfork() (decc$$alloc_vfork_blocks() >= 0 ? \
+               lib$get_current_invo_context(decc$$get_vfork_jmpbuf()) : -1)
+#endif /* VMS */
+
 #define COLLECT
 
 #include "demangle.h"
@@ -43,10 +56,6 @@ Boston, MA 02111-1307, USA.  */
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free free
 
-#ifdef USG
-#define vfork fork
-#endif
-
 #ifndef WIFSIGNALED
 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
 #endif
@@ -1716,13 +1725,7 @@ collect_execute (prog, argv, redir)
 #ifndef __CYGWIN32__
   pid = vfork ();
   if (pid == -1)
-    {
-#ifdef vfork
-      fatal_perror ("fork");
-#else
-      fatal_perror ("vfork");
-#endif
-    }
+    fatal_perror (VFORK_STRING);
 
   if (pid == 0)			/* child context */
     {
@@ -2243,13 +2246,7 @@ scan_prog_file (prog_name, which_pass)
   /* Spawn child nm on pipe */
   pid = vfork ();
   if (pid == -1)
-    {
-#ifdef vfork
-      fatal_perror ("fork");
-#else
-      fatal_perror ("vfork");
-#endif
-    }
+    fatal_perror (VFORK_STRING);
 
   if (pid == 0)			/* child context */
     {
@@ -2685,13 +2682,7 @@ scan_libraries (prog_name)
   /* Spawn child ldd on pipe */
   pid = vfork ();
   if (pid == -1)
-    {
-#ifdef vfork
-      fatal_perror ("fork");
-#else
-      fatal_perror ("vfork");
-#endif
-    }
+    fatal_perror (VFORK_STRING);
 
   if (pid == 0)			/* child context */
     {

gcc/config.in

@@ -98,9 +98,15 @@
 /* Define if you don't have vprintf but do have _doprnt.  */
 #undef HAVE_DOPRNT
 
+/* Define if you have <vfork.h>.  */
+#undef HAVE_VFORK_H
+
 /* Define if you have the vprintf function.  */
 #undef HAVE_VPRINTF
 
+/* Define to `int' if <sys/types.h> doesn't define.  */
+#undef pid_t
+
 /* Define if you have the ANSI C header files.  */
 #undef STDC_HEADERS
 
@@ -110,6 +116,9 @@
 /* Define if you can safely include both <sys/time.h> and <time.h>.  */
 #undef TIME_WITH_SYS_TIME
 
+/* Define vfork as fork if vfork does not work.  */
+#undef vfork
+
 /* Define if you have the atoll function.  */
 #undef HAVE_ATOLL
 

gcc/configure.in

@@ -367,6 +367,7 @@ AC_CHECK_FUNCS(strtoul bsearch strerror putenv popen bcopy bzero bcmp \
 
 GCC_FUNC_VFPRINTF_DOPRNT
 GCC_FUNC_PRINTF_PTR
+AC_FUNC_VFORK
 
 GCC_NEED_DECLARATIONS(malloc realloc calloc free bcopy bzero bcmp \
 	index rindex getenv atol sbrk abort atof strerror getcwd getwd \

gcc/gcc.c

@@ -69,10 +69,6 @@ extern void set_std_prefix PROTO((char *, int));
 #define exit __posix_exit
 #endif
 
-#ifdef USG
-#define vfork fork
-#endif /* USG */
-
 /* Test if something is a normal file.  */
 #ifndef S_ISREG
 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)

gcc/protoize.c

@@ -182,12 +182,6 @@ extern int access ();
 extern size_t   strlen ()
 #endif
 
-/* Fork is not declared because the declaration caused a conflict
-   on the HPPA.  */
-#if !(defined (USG) || defined (VMS))
-#define fork vfork
-#endif /* (defined (USG) || defined (VMS)) */
-
 #endif /* !defined (POSIX) */
 
 /* Look for these where the `const' qualifier is intentionally cast aside.  */