Added f77 program. This is a modified version of the c++ program.

All it does is add -lf2c and -lm.

gnu/usr.bin/cc/Makefile

@@ -1,8 +1,8 @@
 #
-# $Id$
+# $Id: Makefile,v 1.2 1994/09/18 22:35:35 wollman Exp $
 #
 
-PGMDIR=	cc_int cpp cc1 cc cc1plus c++ libgcc
+PGMDIR=	cc_int cpp cc1 cc cc1plus c++ f77 libgcc
 SUBDIR=	$(PGMDIR)
 
 .include <bsd.subdir.mk>

gnu/usr.bin/cc/f77/Makefile

@@ -0,0 +1,10 @@
+#
+# $Id: Makefile,v 1.3 1994/09/18 22:35:43 wollman Exp $
+#
+
+PROG =	f77
+SRCS =	f77.c
+BINDIR=	/usr/bin
+NOMAN=	1
+
+.include <bsd.prog.mk>

gnu/usr.bin/cc/f77/f77.c

@@ -0,0 +1,542 @@
+/* f77 driver dervied from g++.c by Jonas Olsson */
+
+/* G++ preliminary semantic processing for the compiler driver.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@cygnus.com).
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* This program is a wrapper to the main `gcc' driver.  For GNU C++,
+   we need to do two special things: a) append `-lg++' in situations
+   where it's appropriate, to link in libg++, and b) add `-xc++'..`-xnone'
+   around file arguments named `foo.c' or `foo.i'.  So, we do all of
+   this semantic processing then just exec gcc with the new argument
+   list.
+
+   We used to do all of this in a small shell script, but many users
+   found the performance of this as a shell script to be unacceptable.
+   In situations where your PATH has a lot of NFS-mounted directories,
+   using a script that runs sed and other things would be a nasty
+   performance hit.  With this program, we never search the PATH at all.  */
+
+#include "config.h"
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/file.h>   /* May get R_OK, etc. on some systems.  */
+
+/* Defined to the name of the compiler; if using a cross compiler, the
+   Makefile should compile this file with the proper name
+   (e.g., "i386-aout-gcc").  */
+#ifndef GCC_NAME
+#define GCC_NAME "gcc"
+#endif
+
+/* This bit is set if we saw a `-xfoo' language specification.  */
+#define LANGSPEC	(1<<1)
+/* This bit is set if they did `-lm' or `-lmath'.  */
+#define MATHLIB		(1<<2)
+/* This bit is set if they did `-lf2c'.  */
+#define F2CLIB		(1<<3)
+
+/* On MSDOS, write temp files in current dir
+   because there's no place else we can expect to use.  */
+#ifdef __MSDOS__
+#ifndef P_tmpdir
+#define P_tmpdir "."
+#endif
+#ifndef R_OK
+#define R_OK 4
+#define W_OK 2
+#define X_OK 1
+#endif
+#endif
+
+#ifndef VPROTO
+#ifdef __STDC__
+#define PVPROTO(ARGS)		ARGS
+#define VPROTO(ARGS)		ARGS
+#define VA_START(va_list,var)	va_start(va_list,var)
+#else
+#define PVPROTO(ARGS)		()
+#define VPROTO(ARGS)		(va_alist) va_dcl
+#define VA_START(va_list,var)	va_start(va_list)
+#endif
+#endif
+
+extern int errno, sys_nerr;
+#if defined(bsd4_4) || defined(__NetBSD__)
+extern const char *const sys_errlist[];
+#else
+extern char *sys_errlist[];
+#endif
+
+/* Name with which this program was invoked.  */
+static char *programname;
+
+#ifdef HAVE_VPRINTF
+/* Output an error message and exit */
+
+static void
+fatal VPROTO((char *format, ...))
+{
+#ifndef __STDC__
+  char *format;
+#endif
+  va_list ap;
+
+  VA_START (ap, format);
+
+#ifndef __STDC__
+  format = va_arg (ap, char*);
+#endif
+
+  fprintf (stderr, "%s: ", programname);
+  vfprintf (stderr, format, ap);
+  va_end (ap);
+  fprintf (stderr, "\n");
+#if 0
+  /* XXX Not needed for g++ driver.  */
+  delete_temp_files ();
+#endif
+  exit (1);
+}
+
+static void
+error VPROTO((char *format, ...))
+{
+#ifndef __STDC__
+  char *format;
+#endif
+  va_list ap;
+
+  VA_START (ap, format);
+
+#ifndef __STDC__
+  format = va_arg (ap, char*);
+#endif
+
+  fprintf (stderr, "%s: ", programname);
+  vfprintf (stderr, format, ap);
+  va_end (ap);
+
+  fprintf (stderr, "\n");
+}
+
+#else /* not HAVE_VPRINTF */
+
+static void
+error (msg, arg1, arg2)
+     char *msg, *arg1, *arg2;
+{
+  fprintf (stderr, "%s: ", programname);
+  fprintf (stderr, msg, arg1, arg2);
+  fprintf (stderr, "\n");
+}
+
+static void
+fatal (msg, arg1, arg2)
+     char *msg, *arg1, *arg2;
+{
+  error (msg, arg1, arg2);
+#if 0
+  /* XXX Not needed for g++ driver.  */
+  delete_temp_files ();
+#endif
+  exit (1);
+}
+
+#endif /* not HAVE_VPRINTF */
+
+/* More 'friendly' abort that prints the line and file.
+   config.h can #define abort fancy_abort if you like that sort of thing.  */
+
+void
+fancy_abort ()
+{
+  fatal ("Internal f77 abort.");
+}
+
+char *
+xmalloc (size)
+     unsigned size;
+{
+  register char *value = (char *) malloc (size);
+  if (value == 0)
+    fatal ("virtual memory exhausted");
+  return value;
+}
+
+/* Return a newly-allocated string whose contents concatenate those
+   of s1, s2, s3.  */
+static char *
+concat (s1, s2, s3)
+     char *s1, *s2, *s3;
+{
+  int len1 = strlen (s1), len2 = strlen (s2), len3 = strlen (s3);
+  char *result = xmalloc (len1 + len2 + len3 + 1);
+
+  strcpy (result, s1);
+  strcpy (result + len1, s2);
+  strcpy (result + len1 + len2, s3);
+  *(result + len1 + len2 + len3) = 0;
+
+  return result;
+}
+
+static void
+pfatal_with_name (name)
+     char *name;
+{
+  char *s;
+
+  if (errno < sys_nerr)
+    s = concat ("%s: ", sys_errlist[errno], "");
+  else
+    s = "cannot open %s";
+  fatal (s, name);
+}
+
+#ifdef __MSDOS__
+/* This is the common prefix we use to make temp file names.  */
+char *temp_filename;
+
+/* Length of the prefix.  */
+int temp_filename_length;
+
+/* Compute a string to use as the base of all temporary file names.  */
+static char *
+choose_temp_base_try (try, base)
+char *try;
+char *base;
+{
+  char *rv;
+  if (base)
+    rv = base;
+  else if (try == (char *)0)
+    rv = 0;
+  else if (access (try, R_OK | W_OK) != 0)
+    rv = 0;
+  else
+    rv = try;
+  return rv;
+}
+
+static void
+choose_temp_base ()
+{
+  char *base = 0;
+  int len;
+
+  base = choose_temp_base_try (getenv ("TMPDIR"), base);
+  base = choose_temp_base_try (getenv ("TMP"), base);
+  base = choose_temp_base_try (getenv ("TEMP"), base);
+
+#ifdef P_tmpdir
+  base = choose_temp_base_try (P_tmpdir, base);
+#endif
+
+  base = choose_temp_base_try ("/usr/tmp", base);
+  base = choose_temp_base_try ("/tmp", base);
+
+  /* If all else fails, use the current directory! */  
+  if (base == (char *)0)
+    base = "./";
+
+  len = strlen (base);
+  temp_filename = xmalloc (len + sizeof("/ccXXXXXX"));
+  strcpy (temp_filename, base);
+  if (len > 0 && temp_filename[len-1] != '/')
+    temp_filename[len++] = '/';
+  strcpy (temp_filename + len, "ccXXXXXX");
+
+  mktemp (temp_filename);
+  temp_filename_length = strlen (temp_filename);
+  if (temp_filename_length == 0)
+    abort ();
+}
+
+static void
+perror_exec (name)
+     char *name;
+{
+  char *s;
+
+  if (errno < sys_nerr)
+    s = concat ("installation problem, cannot exec %s: ",
+		sys_errlist[errno], "");
+  else
+    s = "installation problem, cannot exec %s";
+  error (s, name);
+}
+
+/* This is almost exactly what's in gcc.c:pexecute for MSDOS.  */
+void
+run_dos (program, argv)
+     char *program;
+     char *argv[];
+{
+  char *scmd, *rf;
+  FILE *argfile;
+  int i;
+
+  choose_temp_base (); /* not in gcc.c */
+
+  scmd = (char *) malloc (strlen (program) + strlen (temp_filename) + 10);
+  rf = scmd + strlen (program) + 6;
+  sprintf (scmd, "%s.exe @%s.gp", program, temp_filename);
+
+  argfile = fopen (rf, "w");
+  if (argfile == 0)
+    pfatal_with_name (rf);
+
+  for (i=1; argv[i]; i++)
+    {
+      char *cp;
+      for (cp = argv[i]; *cp; cp++)
+	{
+	  if (*cp == '"' || *cp == '\'' || *cp == '\\' || isspace (*cp))
+	    fputc ('\\', argfile);
+	  fputc (*cp, argfile);
+	}
+      fputc ('\n', argfile);
+    }
+  fclose (argfile);
+
+  i = system (scmd);
+
+  remove (rf);
+  
+  if (i == -1)
+    perror_exec (program);
+}
+#endif /* __MSDOS__ */
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  register int i, j = 0;
+  register char *p;
+  int verbose = 0;
+
+  /* This will be NULL if we encounter a situation where we should not
+     link in libf2c.  */
+  char *library = "-lf2c";
+
+  /* Used to track options that take arguments, so we don't go wrapping
+     those with -xf2c/-xnone.  */
+  char *quote = NULL;
+
+  /* The new argument list will be contained in this.  */
+  char **arglist;
+
+  /* The name of the compiler we will want to run---by default, it
+     will be the definition of `GCC_NAME', e.g., `gcc'.  */
+  char *gcc = GCC_NAME;
+
+  /* Non-zero if we saw a `-xfoo' language specification on the
+     command line.  Used to avoid adding our own -xf2c if the user
+     already gave a language for the file.  */
+  int saw_speclang = 0;
+
+  /* Non-zero if we saw `-lm' or `-lmath' on the command line.  */
+  int saw_math = 0;
+
+  /* The number of arguments being added to what's in argv.  By
+     default it's one new argument (adding `-lf2c').  We use this
+     to track the number of times we've inserted -xf2c/-xnone as well.  */
+  int added = 2;
+
+  /* An array used to flag each argument that needs a bit set for
+     LANGSPEC or MATHLIB.  */
+  int *args;
+
+  p = argv[0] + strlen (argv[0]);
+  while (p != argv[0] && p[-1] != '/')
+    --p;
+  programname = p;
+
+  if (argc == 1)
+    fatal ("No input files specified.\n");
+
+#ifndef __MSDOS__
+  /* We do a little magic to find out where the main gcc executable
+     is.  If they ran us as /usr/local/bin/f77, then we will look
+     for /usr/local/bin/gcc; similarly, if they just ran us as `f77',
+     we'll just look for `gcc'.  */
+  if (p != argv[0])
+    {
+      *--p = '\0';
+      gcc = (char *) malloc ((strlen (argv[0]) + 1 + strlen (GCC_NAME) + 1)
+			     * sizeof (char));
+      sprintf (gcc, "%s/%s", argv[0], GCC_NAME);
+    }
+#endif
+
+  args = (int *) malloc (argc * sizeof (int));
+  bzero (args, argc * sizeof (int));
+
+  for (i = 1; i < argc; i++)
+    {
+      /* If the previous option took an argument, we swallow it here.  */
+      if (quote)
+	{
+	  quote = NULL;
+	  continue;
+	}
+
+      if (argv[i][0] == '\0' || argv[i][1] == '\0')
+	continue;
+
+      if (argv[i][0] == '-')
+	{
+	  if (strcmp (argv[i], "-nostdlib") == 0)
+	    {
+	      added--;
+	      library = NULL;
+	    }
+	  else if (strcmp (argv[i], "-lm") == 0
+		   || strcmp (argv[i], "-lmath") == 0)
+	    args[i] |= MATHLIB;
+	  else if (strcmp (argv[i], "-v") == 0)
+	    {
+	      verbose = 1;
+	      if (argc == 2)
+		{
+		  /* If they only gave us `-v', don't try to link
+		     in libf2c.  */ 
+		  added--;
+		  library = NULL;
+		}
+	    }
+	  else if (strncmp (argv[i], "-x", 2) == 0)
+	    saw_speclang = 1;
+	  else if (((argv[i][2] == '\0'
+		     && (char *)strchr ("bBVDUoeTuIYmLiA", argv[i][1]) != NULL)
+		    || strcmp (argv[i], "-Tdata") == 0))
+	    quote = argv[i];
+	  else if (((argv[i][2] == '\0'
+		     && (char *) strchr ("cSEM", argv[i][1]) != NULL)
+		    || strcmp (argv[i], "-MM") == 0))
+	    {
+	      /* Don't specify libraries if we won't link, since that would
+		 cause a warning.  */
+	      added--;
+	      library = NULL;
+	    }
+	  else
+	    /* Pass other options through.  */
+	    continue;
+	}
+      else
+	{
+	  int len; 
+
+	  if (saw_speclang)
+	    continue;
+
+	  /* If the filename ends in .c or .i, put options around it.
+	     But not if a specified -x option is currently active.  */
+	  len = strlen (argv[i]);
+	  if (len > 2
+	      && (argv[i][len - 1] == 'c' || argv[i][len - 1] == 'i')
+	      && argv[i][len - 2] == '.')
+	    {
+	      args[i] |= LANGSPEC;
+	      added += 2;
+	    }
+	}
+    }
+
+  if (quote)
+    fatal ("argument to `%s' missing\n", quote);
+
+  if (added)
+    {
+      arglist = (char **) malloc ((argc + added + 1) * sizeof (char *));
+
+      for (i = 1, j = 1; i < argc; i++, j++)
+	{
+	  arglist[j] = argv[i];
+
+	  /* Make sure -lf2c is before the math library, since libg++
+	     itself uses those math routines.  */
+	  if (!saw_math && (args[i] & MATHLIB) && library)
+	    {
+	      saw_math = 1;
+	      arglist[j] = library;
+	      arglist[++j] = argv[i];
+	    }
+	  /* ljo: We want .i and .c treated as C, so don't do anything */
+#if 0
+	  /* Wrap foo.c and foo.i files in a language specification to
+	     force the gcc compiler driver to run cc1plus on them.  */
+	  if (args[i] & LANGSPEC)
+	    {
+	      int len = strlen (argv[i]);
+	      if (argv[i][len - 1] == 'i')
+		arglist[j++] = "-xc++-cpp-output";
+	      else
+		arglist[j++] = "-xc++";
+	      arglist[j++] = argv[i];
+	      arglist[j] = "-xnone";
+	    }
+#endif
+	}
+
+      /* Add `-lf2c' if we haven't already done so.  */
+      if (library && !saw_math){
+	arglist[j++] = library;
+	arglist[j++] = "-lm";
+      }
+      arglist[j] = NULL;
+    }
+  else
+    /* No need to copy 'em all.  */
+    arglist = argv;
+
+  arglist[0] = gcc;
+
+  if (verbose)
+    {
+      if (j == 0)
+	j = argc;
+
+      for (i = 0; i < j; i++)
+	fprintf (stderr, " %s", arglist[i]);
+      fprintf (stderr, "\n");
+    }
+#ifndef OS2
+#ifdef __MSDOS__
+  run_dos (gcc, arglist);
+#else /* !__MSDOS__ */
+  if (execvp (gcc, arglist) < 0)
+    pfatal_with_name (gcc);
+#endif /* __MSDOS__ */
+#else /* OS2 */
+  if (spawnvp (gcc, arglist) < 0)
+    pfatal_with_name (gcc);
+#endif
+
+  return 0;
+}