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Re: [PR/17991] More fixes to run fixincludes under mingw32


Paolo Bonzini wrote:

This moves environment variable handling to a separate file, so that applyfix can use the variables as well.

As a bonus, I made "make check" work under two-process operation, and I added a --enable-twoprocess option so that it is possible to easily test two-process operation under Linux as well.

Ok for mainline?

Here is it.


Paolo
2004-08-14  Paolo Bonzini  <bonzini@gnu.org>

	* Makefile.in (ALLOBJ, TESTOBJ, FIXOBJ): Add fixopts.o.
	Update copyright year.
	* fixfixes.c (main): Call initialize_opts from fixopts.c.
	* fixincl.c (initialize): Call initialize_opts from fixopts.c,
	do not include code for parsing options (environment vars).
	(fix_with_system): Use a search path for applyfix, so that you
	can run the test suite with two-process fixincludes.
	* fixopts.c: New file.
	* configure.ac: Add --enable-twoprocess.  Export ac_exeext
	to config.h.
	* config.h.in: Regenerate.
	* configure: Regenerate.

Index: Makefile.in
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/Makefile.in,v
retrieving revision 1.1
diff -u -r1.1 Makefile.in
--- Makefile.in	31 Aug 2004 09:26:05 -0000	1.1
+++ Makefile.in	14 Oct 2004 08:50:26 -0000
@@ -1,6 +1,7 @@
 # Makefile for fixincludes.
 #
-#   Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+#   Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004
+#   Free Software Foundation, Inc.
 
 #This file is part of fixincludes.
 
@@ -60,10 +61,10 @@
 LIBIBERTY=../libiberty/libiberty.a
 
 ALLOBJ = fixincl.o fixtests.o fixfixes.o server.o procopen.o \
-      fixlib.o
+      fixlib.o fixopts.o
 
-TESTOBJ = fixincl.o fixlib.o fixtests.o
-FIXOBJ  = fixfixes.o fixlib.o
+TESTOBJ = fixincl.o fixlib.o fixtests.o fixopts.o
+FIXOBJ  = fixfixes.o fixlib.o fixopts.o
 
 HDR = server.h fixlib.h
 FI  = fixincl@EXEEXT@
Index: config.h.in
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/config.h.in,v
retrieving revision 1.1
diff -u -r1.1 config.h.in
--- config.h.in	31 Aug 2004 09:26:05 -0000	1.1
+++ config.h.in	14 Oct 2004 08:50:26 -0000
@@ -1,5 +1,8 @@
 /* config.h.in.  Generated from configure.ac by autoheader.  */
 
+/* Defined to the executable file extension on the host system */
+#undef EXE_EXT
+
 /* Define to 1 if you have the declaration of `abort', and to 0 if you don't.
    */
 #undef HAVE_DECL_ABORT
Index: configure
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/configure,v
retrieving revision 1.1
diff -u -r1.1 configure
--- configure	31 Aug 2004 09:26:05 -0000	1.1
+++ configure	14 Oct 2004 08:50:27 -0000
@@ -847,6 +847,7 @@
 Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-twoprocess       Use a separate process to apply the fixes
   --enable-maintainer-mode enable make rules and dependencies not useful
                           (and sometimes confusing) to the casual installer
 
@@ -2343,19 +2344,38 @@
 # Choose one or two-process fix methodology.  Systems that cannot handle
 # bi-directional pipes must use the two process method.
 #
-case $host in
+# Check whether --enable-twoprocess or --disable-twoprocess was given.
+if test "${enable_twoprocess+set}" = set; then
+  enableval="$enable_twoprocess"
+  if test "x$enable_twoprocess" = yes; then
+	TARGET=twoprocess
+else
+	TARGET=oneprocess
+fi
+else
+  case $host in
 	i?86-*-msdosdjgpp* | \
 	*-*-beos* )
 		TARGET=twoprocess
+		;;
+
+	* )
+		TARGET=oneprocess
+		;;
+esac
+fi;
+
+
+if test $TARGET = twoprocess; then
 
 cat >>confdefs.h <<\_ACEOF
 #define SEPARATE_FIX_PROC 1
 _ACEOF
 
-		;;
+fi
 
+case $host in
 	vax-dec-bsd* )
-		TARGET=oneprocess
 
 cat >>confdefs.h <<\_ACEOF
 #define exit xexit
@@ -2367,13 +2387,14 @@
 _ACEOF
 
 		;;
-
-	* )
-		TARGET=oneprocess
-		;;
 esac
 
 
+cat >>confdefs.h <<_ACEOF
+#define EXE_EXT "$ac_exeext"
+_ACEOF
+
+
 # Checks for header files.
 
 ac_ext=c
Index: configure.ac
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/configure.ac,v
retrieving revision 1.1
diff -u -r1.1 configure.ac
--- configure.ac	31 Aug 2004 09:26:05 -0000	1.1
+++ configure.ac	14 Oct 2004 08:50:27 -0000
@@ -9,24 +9,39 @@
 # Choose one or two-process fix methodology.  Systems that cannot handle
 # bi-directional pipes must use the two process method.
 #
-case $host in
+AC_ARG_ENABLE([twoprocess],
+[  --enable-twoprocess       Use a separate process to apply the fixes],
+[if test "x$enable_twoprocess" = yes; then
+	TARGET=twoprocess
+else
+	TARGET=oneprocess
+fi],
+[case $host in
 	i?86-*-msdosdjgpp* | \
 	*-*-beos* )
 		TARGET=twoprocess
-		AC_DEFINE(SEPARATE_FIX_PROC, 1, [Define if testing and fixing are done by separate process])
 		;;
 
-	vax-dec-bsd* )
+	* )
 		TARGET=oneprocess
-		AC_DEFINE(exit, xexit, [Define to xexit if the host system does not support atexit])
-		AC_DEFINE(atexit, xatexit, [Define to xatexit if the host system does not support atexit])
 		;;
+esac])
+AC_SUBST(TARGET)
 
-	* )
-		TARGET=oneprocess
+if test $TARGET = twoprocess; then
+	AC_DEFINE(SEPARATE_FIX_PROC, 1,
+		  [Define if testing and fixing are done by separate process])
+fi
+
+case $host in
+	vax-dec-bsd* )
+		AC_DEFINE(exit, xexit, [Define to xexit if the host system does not support atexit])
+		AC_DEFINE(atexit, xatexit, [Define to xatexit if the host system does not support atexit])
 		;;
 esac
-AC_SUBST(TARGET)
+
+AC_DEFINE_UNQUOTED([EXE_EXT], "$ac_exeext",
+  [Defined to the executable file extension on the host system])
 
 # Checks for header files.
 AC_HEADER_STDC
Index: fixfixes.c
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/fixfixes.c,v
retrieving revision 1.1
diff -u -r1.1 fixfixes.c
--- fixfixes.c	31 Aug 2004 09:26:05 -0000	1.1
+++ fixfixes.c	14 Oct 2004 08:50:27 -0000
@@ -3,7 +3,7 @@
 
    Test to see if a particular fix should be applied to a header file.
 
-   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003
+   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004
    Free Software Foundation, Inc.
 
 = = = = = = = = = = = = = = = = = = = = = = = = =
@@ -749,6 +749,8 @@
       return EXIT_FAILURE;
     }
 
+  initialize_opts ();
+
   {
     char* pz = argv[1];
     long  idx;
Index: fixincl.c
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/fixincl.c,v
retrieving revision 1.1
diff -u -r1.1 fixincl.c
--- fixincl.c	31 Aug 2004 09:26:05 -0000	1.1
+++ fixincl.c	14 Oct 2004 08:50:27 -0000
@@ -2,7 +2,7 @@
    files which are fixed to work correctly with ANSI C and placed in a
    directory that GCC will search.
 
-   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999, 2000, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -49,12 +51,6 @@
     This had to be done to correct non-standard usages in the\n\
     original, manufacturer supplied header file.  */\n\n";
 
-/*  Working environment strings.  Essentially, invocation 'options'.  */
-
-#define _ENV_(v,m,n,t)   tCC* v = NULL;
-ENV_TABLE
-#undef _ENV_
-
 int find_base_len = 0;
 
 typedef enum {
@@ -214,18 +210,6 @@
 void
 initialize ( int argc, char** argv )
 {
-  static const char var_not_found[] =
-#ifndef __STDC__
-    "fixincl ERROR:  %s environment variable not defined\n"
-#else
-    "fixincl ERROR:  %s environment variable not defined\n"
-    "each of these must be defined:\n"
-# define _ENV_(vv,mm,nn,tt) "\t" nn "  - " tt "\n"
-  ENV_TABLE
-# undef _ENV_
-#endif
-    ;
-
   xmalloc_set_program_name (argv[0]);
 
   switch (argc)
@@ -255,14 +239,7 @@
   signal (SIGCHLD, SIG_DFL);
 #endif
 
-#define _ENV_(v,m,n,t)   { tSCC var[] = n;  \
-  v = getenv (var); if (m && (v == NULL)) { \
-  fprintf (stderr, var_not_found, var);     \
-  exit (EXIT_FAILURE); } }
-
-ENV_TABLE
-
-#undef _ENV_
+  initialize_opts ();
 
   if (ISDIGIT ( *pz_verbose ))
     verbose_level = (te_verbose)atoi( pz_verbose );
@@ -877,32 +854,41 @@
   char*  pz_cmd;
   char*  pz_scan;
   size_t argsize;
+  int i;
+  tSCC z_applyfix_prog[2] = {
+    "/../fixincludes/applyfix" EXE_EXT,
+    "/../applyfix" EXE_EXT };
 
   if (p_fixd->fd_flags & FD_SUBROUTINE)
-    {
-      tSCC z_applyfix_prog[] = "/fixinc/applyfix";
-
-      argsize = 32
-              + strlen( pz_orig_dir )
-              + sizeof( z_applyfix_prog )
-              + strlen( pz_fix_file )
-              + strlen( pz_file_source )
-              + strlen( pz_temp_file );
-
-      pz_cmd = xmalloc (argsize);
-
-      strcpy( pz_cmd, pz_orig_dir );
-      pz_scan = pz_cmd + strlen( pz_orig_dir );
-      strcpy( pz_scan, z_applyfix_prog );
-      pz_scan += sizeof( z_applyfix_prog ) - 1;
-      *(pz_scan++) = ' ';
-
-      /*
-       *  Now add the fix number and file names that may be needed
-       */
-      sprintf (pz_scan, "%ld \'%s\' \'%s\' \'%s\'", p_fixd - fixDescList,
-	       pz_fix_file, pz_file_source, pz_temp_file);
-    }
+    for (i = 0; i < 2; i++)
+      { 
+	struct stat buf;
+
+        argsize = 32
+                + strlen( pz_orig_dir )
+                + sizeof( z_applyfix_prog )
+                + strlen( pz_fix_file )
+                + strlen( pz_file_source )
+                + strlen( pz_temp_file );
+
+        pz_cmd = xmalloc (argsize);
+
+        strcpy( pz_cmd, pz_orig_dir );
+        pz_scan = pz_cmd + strlen( pz_orig_dir );
+        strcpy( pz_scan, z_applyfix_prog );
+        pz_scan += sizeof( z_applyfix_prog ) - 1;
+
+	if (stat (pz_scan, &buf) != -1)
+	  {
+            *(pz_scan++) = ' ';
+            /*
+             *  Now add the fix number and file names that may be needed
+             */
+            sprintf (pz_scan, "%ld \'%s\' \'%s\' \'%s\'", p_fixd - fixDescList,
+	             pz_fix_file, pz_file_source, pz_temp_file);
+	    break;
+	  }
+      }
   else /* NOT an "internal" fix: */
     {
       size_t parg_size;
Index: fixopts.c
===================================================================
RCS file: fixopts.c
diff -N fixopts.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ fixopts.c	14 Oct 2004 08:50:27 -0000
@@ -0,0 +1,51 @@
+/* Handle options that are passed from environment variables.
+
+   Copyright (C) 2004 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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.
+
+GCC 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 GCC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "fixlib.h"
+
+#define _ENV_(v,m,n,t)   tCC* v = NULL;
+ENV_TABLE
+#undef _ENV_
+
+void
+initialize_opts ()
+{
+  static const char var_not_found[] =
+#ifndef __STDC__
+    "fixincl ERROR:  %s environment variable not defined\n"
+#else
+    "fixincl ERROR:  %s environment variable not defined\n"
+    "each of these must be defined:\n"
+# define _ENV_(vv,mm,nn,tt) "\t" nn "  - " tt "\n"
+  ENV_TABLE
+# undef _ENV_
+#endif
+    ;
+
+#define _ENV_(v,m,n,t)   { tSCC var[] = n;  \
+  v = getenv (var); if (m && (v == NULL)) { \
+  fprintf (stderr, var_not_found, var);     \
+  exit (EXIT_FAILURE); } }
+
+ENV_TABLE
+
+#undef _ENV_
+}
Index: fixlib.h
===================================================================
RCS file: /cvs/gcc/gcc/fixincludes/fixlib.h,v
retrieving revision 1.1
diff -u -r1.1 fixlib.h
--- fixlib.h	31 Aug 2004 09:26:05 -0000	1.1
+++ fixlib.h	14 Oct 2004 08:57:16 -0000
@@ -224,4 +224,6 @@
 #endif
 
 t_bool mn_get_regexps ( regex_t** label_re, regex_t** name_re, tCC *who );
+
+void   initialize_opts ( void );
 #endif /* ! GCC_FIXLIB_H */

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