* gcc.c (cpp_options): Set MD file name from output

        filename, if specified.
        (suffix_subst): New static variable.
        (do_spec): Clear it.
        (do_spec_1, case '.'): Handle new `%.suffix' spec.
        Clear it.
        (give_switch): Handle suffix_subst.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@38859 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b0c8eff..080354d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2001-01-10  Nathan Sidwell  <nathan@codesourcery.com>
+       
+        * gcc.c (cpp_options): Set MD file name from output
+        filename, if specified.
+        (suffix_subst): New static variable.
+        (do_spec): Clear it.
+        (do_spec_1, case '.'): Handle new `%.suffix' spec.
+        Clear it.
+        (give_switch): Handle suffix_subst.
+
 2001-01-10  Phil Edwards  <pme@sources.redhat.com>
 
        * invoke.texi:  Fix another typo.

diff --git a/gcc/gcc.c b/gcc/gcc.c
index e37466f..d003e25 100644 (file)
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -318,6 +318,10 @@ or with constant text in a single argument.
         of a temporary file, just like %u.  This temporary file is not
         meant for communication between processes, but rather as a junk
         disposal mechanism.
+ %.SUFFIX
+        substitutes .SUFFIX for the suffixes of a matched switch's args when
+        it is subsequently output with %*. SUFFIX is terminated by the next
+        space or %.
  %d    marks the argument containing or following the %d as a
        temporary file name, so that that file will be deleted if CC exits
        successfully.  Unlike %g, this contributes no text to the argument.
@@ -586,8 +590,8 @@ static const char *cpp_options =
 "%{C:%{!E:%eGNU C does not support -C without using -E}}\
  %{std*} %{nostdinc*}\
  %{C} %{v} %{I*} %{P} %{$} %I\
- %{M} %{MM} %{MD:-M -MF %b.d} %{MMD:-MM -MF %b.d} %{MF} %{MG} %{MP} %{MQ} %{MT}\
- %{M|MD|MM|MMD:%{o*:-MQ %*}}\
+ %{MD:-M -MF %{!o: %b.d}%{o*:%.d%*}} %{MMD:-MM -MF %{!o: %b.d}%{o*:%.d%*}}\
+ %{M} %{MM} %{MF} %{MG} %{MP} %{MQ} %{MT} %{M|MD|MM|MMD:%{o*:-MQ %*}}\
  %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3}\
  %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs}\
  %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
@@ -3853,6 +3857,10 @@ static int this_is_library_file;
 /* Nonzero means that the input of this command is coming from a pipe.  */
 static int input_from_pipe;
 
+/* Nonnull means substitute this for any suffix when outputting a switches
+   arguments. */
+static const char *suffix_subst;
+
 /* Process the spec SPEC and run the commands specified therein.
    Returns 0 if the spec is successfully processed; -1 if failed.  */
 
@@ -3868,6 +3876,7 @@ do_spec (spec)
   this_is_output_file = 0;
   this_is_library_file = 0;
   input_from_pipe = 0;
+  suffix_subst = NULL;
 
   value = do_spec_1 (spec, 0, NULL_PTR);
 
@@ -4622,6 +4631,17 @@ do_spec_1 (spec, inswitch, soft_matched_part)
            obstack_1grow (&obstack, '%');
            break;
 
+         case '.':
+          {
+            unsigned len = 0;
+
+            while (p[len] && p[len] != ' ' && p[len] != '%')
+              len++;
+             suffix_subst = save_string (p - 1, len + 1);
+             p += len;
+           }
+          break;
+          
          case '*':
            if (soft_matched_part)
              {
@@ -4972,6 +4992,7 @@ next_member:
                    do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
                    /* Pass any arguments this switch has.  */
                    give_switch (i, 1, 1);
+                   suffix_subst = NULL;
                  }
 
              /* We didn't match.  Try again.  */
@@ -5179,9 +5200,29 @@ give_switch (switchnum, omit_first_word, include_blanks)
       const char **p;
       for (p = switches[switchnum].args; *p; p++)
        {
+         const char *arg = *p;
+
          if (include_blanks)
            do_spec_1 (" ", 0, NULL_PTR);
-         do_spec_1 (*p, 1, NULL_PTR);
+         if (suffix_subst)
+           {
+             unsigned length = strlen (arg);
+
+             while (length-- && !IS_DIR_SEPARATOR (arg[length]))
+               if (arg[length] == '.')
+                 {
+                   ((char *)arg)[length] = 0;
+                   break;
+                 }
+             do_spec_1 (arg, 1, NULL_PTR);
+             if (!arg[length])
+               {
+                 ((char *)arg)[length] = '.';
+                 do_spec_1 (suffix_subst, 1, NULL_PTR);
+               }
+           }
+         else
+           do_spec_1 (arg, 1, NULL_PTR);
        }
     }