+2001-01-05 Neil Booth <neil@daikokuya.demon.co.uk>
+
+ * cpp.texi: Update for -MP. Clarify behaviour of -MT.
+ * cppinit.c (initialize_dependency_output): Update.
+ (cpp_finish): Output dummy targets for -MP.
+ (OPT_MP): New.
+ (cpp_handle_option): Handle -MP. Don't quote -MT options.
+ * cpplib.h (struct cpp_options): Add deps_phony_targets.
+ * gcc.c (cpp_options): Update to handle -MP.
+ * mkdeps.c (deps_add_target, deps_add_default_target): Update
+ to quote only the default target.
+ (deps_phony_targets): Insert a preceding newline. Rename from
+ deps_dummy_targets for consistency.
+ * mkdeps.h: Update
+
2001-01-05 Alexandre Oliva <aoliva@redhat.com>
* calls.c (emit_library_call_value_1): Support
Like @samp{-MD} except mention only user header files, not system
header files.
+@item -MP
+@findex -MP
+This option instructs CPP to add a phony target for each dependency
+other than the main file, causing each to depend on nothing. These
+dummy rules work around errors MAKE gives if you remove header files
+without updating the Makefile to match.
+
+This is typical output:-
+
+@smallexample
+/tmp/test.o: /tmp/test.c /tmp/test.h
+
+/tmp/test.h:
+@end smallexample
+
@item -MT @var{target}
@findex -MT
By default CPP uses the base file name and appends the object suffix,
normally ``.o'', to it to obtain the name of the target for dependency
-generation. With @samp{-MT} you can specify one or more of your own
-targets; doing so overrides the default.
+generation. With @samp{-MT} you can specify a target yourself,
+overriding the default one.
+
+If you want multiple targets, you can specify them as a single argument
+to @samp{-MT}, or use multiple @samp{-MT} options.
+
+The targets you specify are output in the order they appear on the
+command line, and, unlike the default target, are not quoted for MAKE.
+This allows you to do things like, for example,
-The targets are output in the order they appear on the command line.
+@smallexample
+-MT '$(objpfx)foo.o $(objpfx)foo.os $(objpfx)foo.op'
+@end smallexample
@item -H
@findex -H
s = strchr (spec, ' ');
if (s)
{
- deps_add_target (pfile->deps, s + 1);
+ /* Let the caller perform MAKE quoting. */
+ deps_add_target (pfile->deps, s + 1, 0);
output_file = (char *) xmalloc (s - spec + 1);
memcpy (output_file, spec, s - spec);
output_file[s - spec] = 0;
if (deps_stream)
{
deps_write (pfile->deps, deps_stream, 72);
+
+ if (CPP_OPTION (pfile, deps_phony_targets))
+ deps_phony_targets (pfile->deps, deps_stream);
+
if (CPP_OPTION (pfile, deps_file))
{
if (ferror (deps_stream) || fclose (deps_stream) != 0)
DEF_OPT("MG", 0, OPT_MG) \
DEF_OPT("MM", 0, OPT_MM) \
DEF_OPT("MMD", no_fil, OPT_MMD) \
+ DEF_OPT("MP", 0, OPT_MP) \
DEF_OPT("MT", no_tgt, OPT_MT) \
DEF_OPT("P", 0, OPT_P) \
DEF_OPT("U", no_mac, OPT_U) \
CPP_OPTION (pfile, no_output) = 1;
break;
+ case OPT_MP:
+ CPP_OPTION (pfile, deps_phony_targets) = 1;
+ break;
+
case OPT_MT:
/* Add a target. */
if (! pfile->deps)
pfile->deps = deps_init ();
- deps_add_target (pfile->deps, arg);
+ deps_add_target (pfile->deps, arg, 0);
break;
case OPT_A:
#include <...> as well. */
unsigned char print_deps;
+ /* Nonzero if phony targets are created for each header. */
+ unsigned char deps_phony_targets;
+
/* Nonzero if missing .h files in -M output are assumed to be
generated files and not errors. */
unsigned char print_deps_missing_files;
cpp_token date;
cpp_token time;
- /* Buffer of -M output. */
+ /* Opaque handle to the dependencies of mkdeps.c. Used by -M etc. */
struct deps *deps;
/* Obstack holding all macro hash nodes. This never shrinks.
"%{C:%{!E:%eGNU C does not support -C without using -E}}\
%{std*} %{nostdinc*}\
%{C} %{v} %{I*} %{P} %{$} %I\
- %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{MT}\
+ %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{MP} %{MT}\
%{!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__}}\
+2001-01-04 Neil Booth <neil@daikokuya.demon.co.uk>
+
+ * lang.c (lang_decode_option): Change -MA to -MP.
+ * jcf-depend.c (jcf_dependency_add_target, jcf_dependency_set_target):
+ Update to new prototype; do quote targets.
+ (jcf_dependency_write): Update.
+
2000-12-22 Bryce McKinlay <bryce@albatross.co.nz>
Shorten primitive array allocation path:
/* Functions for handling dependency tracking when reading .class files.
- Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
{
/* We just handle this the same as an `add_target'. */
if (dependencies != NULL && name != NULL)
- deps_add_target (dependencies, name);
+ deps_add_target (dependencies, name, 1);
}
void
const char *name;
{
if (dependencies != NULL)
- deps_add_target (dependencies, name);
+ deps_add_target (dependencies, name, 1);
}
void
deps_write (dependencies, dep_out, 72);
if (print_dummies)
- deps_dummy_targets (dependencies, dep_out);
+ deps_phony_targets (dependencies, dep_out);
fflush (dep_out);
}
/* Java(TM) language-specific utility routines.
- Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GNU CC.
dependency_tracking |= DEPEND_ENABLE;
return 1;
}
- else if (strcmp (p, "-MA") == 0)
+ else if (strcmp (p, "-MP") == 0)
{
jcf_dependency_print_dummies ();
return 1;
break;
case '$':
- /* '$' is quoted by doubling it. This can mishandle things
- like "$(" but there's no easy fix. */
+ /* '$' is quoted by doubling it. */
len++;
break;
}
free (d);
}
+/* Adds a target T. We make a copy, so it need not be a permanent
+ string. QUOTE is true if the string should be quoted. */
void
-deps_add_target (d, t)
+deps_add_target (d, t, quote)
struct deps *d;
const char *t;
+ int quote;
{
- t = munge (t); /* Also makes permanent copy. */
-
if (d->ntargets == d->targets_size)
{
d->targets_size *= 2;
d->targets_size * sizeof (const char *));
}
+ if (quote)
+ t = munge (t); /* Also makes permanent copy. */
+ else
+ t = xstrdup (t);
+
d->targetv[d->ntargets++] = t;
}
/* Sets the default target if none has been given already. An empty
- string as the default target in interpreted as stdin. */
+ string as the default target in interpreted as stdin. The string
+ is quoted for MAKE. */
void
deps_add_default_target (d, tgt)
struct deps *d;
return;
if (tgt[0] == '\0')
- deps_add_target (d, "-");
+ deps_add_target (d, "-", 1);
else
{
tgt = base_name (tgt);
strcpy (suffix, OBJECT_SUFFIX);
else
strcat (o, OBJECT_SUFFIX);
- deps_add_target (d, o);
+ deps_add_target (d, o, 1);
}
}
}
void
-deps_dummy_targets (d, fp)
+deps_phony_targets (d, fp)
const struct deps *d;
FILE *fp;
{
for (i = 1; i < d->ndeps; i++)
{
+ putc ('\n', fp);
fputs (d->depv[i], fp);
putc (':', fp);
putc ('\n', fp);
/* Destroy a deps buffer. */
extern void deps_free PARAMS ((struct deps *));
-/* Add a target (appears on left side of the colon) to the deps list. */
-extern void deps_add_target PARAMS ((struct deps *, const char *));
+/* Add a target (appears on left side of the colon) to the deps list. Takes
+ a boolean indicating whether to quote the target for MAKE. */
+extern void deps_add_target PARAMS ((struct deps *, const char *, int));
/* Sets the default target if none has been given already. An empty
string as the default target in interpreted as stdin. */
file, causing it to depend on nothing. This is used to work around
the intermediate-file deletion misfeature in Make, in some
automatic dependency schemes. */
-extern void deps_dummy_targets PARAMS ((const struct deps *, FILE *));
+extern void deps_phony_targets PARAMS ((const struct deps *, FILE *));
#endif
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