Update to official g77-0.5.21.

From-SVN: r15443

gcc/f/ChangeLog

+Tue Sep  9 01:59:35 1997  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* Version 0.5.21 released.
+
+Tue Sep  9 00:31:01 1997  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* intdoc.c (dumpem): Put appropriate commentary in
+	output file, so readers know it isn't source.
+
+Wed Aug 27 08:08:25 1997  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* proj.h: Always #include "config.j" first, to pick up
+	gcc's configuration.
+	* com.c: Change bcopy() and bzero() calls to memcpy()
+	and memset() calls, to make more of g77 ANSI C.
+
+1997-08-26  Dave Love  <d.love@dl.ac.uk>
+
+	* Make-lang.in ($(srcdir)/f/runtime/configure,
+ 	$(srcdir)/f/runtime/libU77/configure): Fix for when srcdir isn't
+ 	relative.
+
 Tue Aug 26 05:59:21 1997  Craig Burley  <burley@gnu.ai.mit.edu>
 
 	* ansify.c (main): Make sure readers of stdout know

gcc/f/INSTALL

@@ -38,13 +38,16 @@ follow the `g77' installation instructions:
      available--in fact, a complete GNU UNIX system can be put together
      on most systems, if desired.
 
-`gcc-2.7.2.2.tar.gz'
+     The version of GNU `gzip' used to package this release is 1.24.
+     (The version of GNU `tar' used to package this release is 1.11.2.)
+
+`gcc-2.7.2.3.tar.gz'
      You need to have this, or some other applicable, version of `gcc'
      on your system.  The version should be an exact copy of a
-     distribution from the FSF.  It is approximately 7MB large.
+     distribution from the FSF.  Its size is approximately 7.1MB.
 
-     If you've already unpacked `gcc-2.7.2.2.tar.gz' into a directory
-     (named `gcc-2.7.2.2') called the "source tree" for `gcc', you can
+     If you've already unpacked `gcc-2.7.2.3.tar.gz' into a directory
+     (named `gcc-2.7.2.3') called the "source tree" for `gcc', you can
      delete the distribution itself, but you'll need to remember to
      skip any instructions to unpack this distribution.
 
@@ -52,27 +55,85 @@ follow the `g77' installation instructions:
      You can obtain an FSF distribution of `gcc' from the FSF.
 
 `g77-0.5.21.tar.gz'
-     You probably have already unpacked this distribution, or you are
-     reading an advanced copy of this manual, which is contained in
-     this distribution.  This distribution approximately 1MB large.
+     You probably have already unpacked this package, or you are
+     reading an advance copy of these installation instructions, which
+     are contained in this distribution.  The size of this package is
+     approximately 1.5MB.
 
      You can obtain an FSF distribution of `g77' from the FSF, the same
      way you obtained `gcc'.
 
-100MB disk space
-     For a complete "bootstrap" build, about 100MB of disk space is
-     required for `g77' by the author's current GNU/Linux system.
-
-     Some juggling can reduce the amount of space needed; during the
-     bootstrap process, once Stage 3 starts, during which the version
-     of `gcc' that has been copied into the `stage2/' directory is used
-     to rebuild the system, you can delete the `stage1/' directory to
-     free up some space.
-
-     It is likely that many systems don't require the complete
-     bootstrap build, as they already have a recent version of `gcc'
-     installed.  Such systems might be able to build `g77' with only
-     about 75MB of free space.
+Enough disk space
+     The amount of disk space needed to unpack, build, install, and use
+     `g77' depends on the type of system you're using, how you build
+     `g77', and how much of it you install (primarily, which languages
+     you install).
+
+     The sizes shown below assume all languages distributed in
+     `gcc-2.7.2.3', plus `g77', will be built and installed.  These
+     sizes are indicative of GNU/Linux systems on Intel x86 running
+     COFF and on Digital Alpha (AXP) systems running ELF.  These should
+     be fairly representative of 32-bit and 64-bit systems,
+     respectively.
+
+     Note that all sizes are approximate and subject to change without
+     notice!  They are based on preliminary releases of g77 made shortly
+     before the public beta release.
+
+        -- `gcc' and `g77' distributions occupy 8.6MB packed, 35MB
+          unpacked.  These consist of the source code and documentation,
+          plus some derived files (mostly documentation), for `gcc' and
+          `g77'.  Any deviations from these numbers for different kinds
+          of systems are likely to be very minor.
+
+        -- A "bootstrap" build requires an additional 67.3MB for a
+          total of 102MB on an ix86, and an additional 98MB for a total
+          of 165MB on an Alpha.
+
+        -- Removing `gcc/stage1' after the build recovers 10.7MB for a
+          total of 91MB on an ix86, and recovers ??MB for a total of
+          ??MB on an Alpha.
+
+          After doing this, the integrity of the build can still be
+          verified via `make compare', and the `gcc' compiler modified
+          and used to build itself for testing fairly quickly, using
+          the copy of the compiler kept in `gcc/stage2'.
+
+        -- Removing `gcc/stage2' after the build further recovers
+          27.3MB for a total of 64.3MB, and recovers ??MB for a total
+          of ??MB on an Alpha.
+
+          After doing this, the compiler can still be installed,
+          especially if GNU `make' is used to avoid gratuitous rebuilds
+          (or, the installation can be done by hand).
+
+        -- Installing `gcc' and `g77' copies 14.9MB onto the `--prefix'
+          disk for a total of 79.2MB on an ix86, and copies ??MB onto
+          the `--prefix' disk for a total of ??MB on an Alpha.
+
+     After installation, if no further modifications and builds of
+     `gcc' or `g77' are planned, the source and build directory may be
+     removed, leaving the total impact on a system's disk storage as
+     that of the amount copied during installation.
+
+     Systems with the appropriate version of `gcc' installed don't
+     require the complete bootstrap build.  Doing a "straight build"
+     requires about as much space as does a bootstrap build followed by
+     removing both the `gcc/stage1' and `gcc/stage2' directories.
+
+     Installing `gcc' and `g77' over existing versions might require
+     less *new* disk space, but note that, unlike many products, `gcc'
+     installs itself in a way that avoids overwriting other installed
+     versions of itself, so that other versions may easily be invoked
+     (via `gcc -V VERSION').
+
+     So, the amount of space saved as a result of having an existing
+     version of `gcc' and `g77' already installed is not
+     much--typically only the command drivers (`gcc', `g77', `g++', and
+     so on, which are small) and the documentation is overwritten by
+     the new installation.  The rest of the new installation is done
+     without replacing existing installed versions (assuming they have
+     different version numbers).
 
 `patch'
      Although you can do everything `patch' does yourself, by hand,
@@ -84,11 +145,15 @@ follow the `g77' installation instructions:
      In any case, you can apply patches by hand--patch files are
      designed for humans to read them.
 
+     The version of GNU `patch' used to develop this release is 2.4.
+
 `make'
      Your system must have `make', and you will probably save yourself
      a lot of trouble if it is GNU `make' (sometimes referred to as
      `gmake').
 
+     The version of GNU `make' used to develop this release is 3.73.
+
 `cc'
      Your system must have a working C compiler.
 
@@ -102,6 +167,8 @@ follow the `g77' installation instructions:
      distribution.  You can obtain `bison' the same way you obtained
      `gcc' and `g77'.
 
+     The version of GNU `bison' used to develop this release is 1.25.
+
      *Note Missing bison?::, for information on how to work around not
      having `bison'.
 
@@ -110,12 +177,27 @@ follow the `g77' installation instructions:
      need for it.  You can obtain `makeinfo' the same way you obtained
      `gcc' and `g77'.
 
+     The version of GNU `makeinfo' used to develop this release is
+     1.68, from GNU `texinfo' version 3.11.
+
      *Note Missing makeinfo?::, for information on getting around the
      lack of `makeinfo'.
 
-`root' access
+`sed'
+     All UNIX systems have `sed', but some have a broken version that
+     cannot handle configuring, building, or installing `gcc' or `g77'.
+
+     The version of GNU `sed' used to develop this release is 2.05.
+     (Note that GNU `sed' version 3.0 was withdrawn by the FSF--if you
+     happen to have this version installed, replace it with version
+     2.05 immediately.  See a GNU distribution site for further
+     explanation.)
+
+`root' access or equivalent
      To perform the complete installation procedures on a system, you
-     need to have `root' access to that system, or equivalent access.
+     need to have `root' access to that system, or equivalent access to
+     the `--prefix' directory tree specified on the `configure' command
+     line.
 
      Portions of the procedure (such as configuring and building `g77')
      can be performed by any user with enough disk space and virtual
@@ -282,7 +364,7 @@ reasons.
 
    * Improvements to the way `libf2c' is built could make building
      `g77' as a cross-compiler easier--for example, passing and using
-     `LD' and `AR' in the appropriate ways.
+     `$(LD)' and `$(AR)' in the appropriate ways.
 
    * There are still some challenges putting together the right
      run-time libraries (needed by `libf2c') for a target system,
@@ -472,7 +554,7 @@ is assumed that the source distributions themselves already reside in
 `/usr/FSF', a naming convention used by the author of `g77' on his own
 system:
 
-     /usr/FSF/gcc-2.7.2.2.tar.gz
+     /usr/FSF/gcc-2.7.2.3.tar.gz
      /usr/FSF/g77-0.5.21.tar.gz
 
    Users of the following systems should not blindly follow these
@@ -496,20 +578,20 @@ of some of the steps.  These explanations follow this list of steps.
 
      sh[ 1]# cd /usr/src
      
-     sh[ 2]# gunzip -c < /usr/FSF/gcc-2.7.2.2.tar.gz | tar xf -
+     sh[ 2]# gunzip -c < /usr/FSF/gcc-2.7.2.3.tar.gz | tar xf -
      [Might say "Broken pipe"...that is normal on some systems.]
      
      sh[ 3]# gunzip -c < /usr/FSF/g77-0.5.21.tar.gz | tar xf -
      ["Broken pipe" again possible.]
      
-     sh[ 4]# ln -s gcc-2.7.2.2 gcc
+     sh[ 4]# ln -s gcc-2.7.2.3 gcc
      
      sh[ 5]# ln -s g77-0.5.21 g77
      
      sh[ 6]# mv -i g77/* gcc
      [No questions should be asked by mv here; or, you made a mistake.]
      
-     sh[ 7]# patch -p1 -V t -d gcc < gcc/f/gbe/2.7.2.2.diff
+     sh[ 7]# patch -p1 -V t -d gcc < gcc/f/gbe/2.7.2.3.diff
      [Unless patch complains about rejected patches, this step worked.]
      
      sh[ 8]# cd gcc
@@ -531,15 +613,22 @@ of some of the steps.  These explanations follow this list of steps.
      sh[12]# make bootstrap
      [This takes a long time, and is where most problems occur.]
      
-     sh[13]# rm -fr stage1
+     sh[13]# make compare
+     [This verifies that the compiler is `sane'.  Only
+     the file `f/zzz.o' (aka `tmp-foo1' and `tmp-foo2')
+     should be in the list of object files this command
+     prints as having different contents.  If other files
+     are printed, you have likely found a g77 bug.]
      
-     sh[14]# make -k install
+     sh[14]# rm -fr stage1
+     
+     sh[15]# make -k install
      [The actual installation.]
      
-     sh[15]# g77 -v
+     sh[16]# g77 -v
      [Verify that g77 is installed, obtain version info.]
      
-     sh[16]#
+     sh[17]#
 
    *Note Updating Your Info Directory: Updating Documentation, for
 information on how to update your system's top-level `info' directory
@@ -562,7 +651,7 @@ Step 3: `gunzip -d < /usr/FSF/g77-0.5.21.tar.gz | tar xf -'
      achieve the same result--a source tree containing version 0.5.21
      of `g77'.
 
-Step 4: `ln -s gcc-2.7.2.2 gcc'
+Step 4: `ln -s gcc-2.7.2.3 gcc'
 
 Step 5: `ln -s g77-0.5.21 g77'
      These commands mainly help reduce typing, and help reduce visual
@@ -641,10 +730,18 @@ Step 12: `make bootstrap'
      *Note Building gcc::, for complete `g77'-specific information on
      this step.
 
-Step 13: `rm -fr stage1'
+Step 13: `make compare'
+     *Note Where to Port Bugs: Bug Lists, for information on where to
+     report that you observed more than `f/zzz.o' having different
+     contents during this phase.
+
+     *Note How to Report Bugs: Bug Reporting, for information on *how*
+     to report bugs like this.
+
+Step 14: `rm -fr stage1'
      You don't need to do this, but it frees up disk space.
 
-Step 14: `make -k install'
+Step 15: `make -k install'
      If this doesn't seem to work, try:
 
           make -k install install-libf77 install-f2c-all
@@ -655,7 +752,7 @@ Step 14: `make -k install'
      information on entering this manual into your system's list of
      texinfo manuals.
 
-Step 15: `g77 -v'
+Step 16: `g77 -v'
      If this command prints approximately 25 lines of output, including
      the GNU Fortran Front End version number (which should be the same
      as the version number for the version of `g77' you just built and
@@ -723,9 +820,9 @@ generally only the documentation is immediately usable.
    A sequence of commands typically used to unpack `gcc' and `g77' is:
 
      sh# cd /usr/src
-     sh# gunzip -d < /usr/FSF/gcc-2.7.2.2.tar.gz | tar xf -
-     sh# gunzip -d < /usr/FSF/g77-0.5.21.tar.gz | tar xf -
-     sh# ln -s gcc-2.7.2.2 gcc
+     sh# gunzip -c /usr/FSF/gcc-2.7.2.3.tar.gz | tar xf -
+     sh# gunzip -c /usr/FSF/g77-0.5.21.tar.gz | tar xf -
+     sh# ln -s gcc-2.7.2.3 gcc
      sh# ln -s g77-0.5.21 g77
      sh# mv -i g77/* gcc
 
@@ -745,7 +842,7 @@ and the top level of just the `g77' source tree (prior to issuing the
 
    All three entries should be moved (or copied) into a `gcc' source
 tree (typically named after its version number and as it appears in the
-FSF distributions--e.g. `gcc-2.7.2.2').
+FSF distributions--e.g. `gcc-2.7.2.3').
 
    `g77/f' is the subdirectory containing all of the code,
 documentation, and other information that is specific to `g77'.  The
@@ -1214,43 +1311,43 @@ them when they work:
      g77 version 0.5.21
       ./xgcc -B./ -v -fnull-version -o /tmp/gfa18047 ...
      Reading specs from ./specs
-     gcc version 2.7.2.2.f.3
+     gcc version 2.7.2.3.f.1
       ./cpp -lang-c -v -isystem ./include -undef ...
-     GNU CPP version 2.7.2.2.f.3 (Linux/Alpha)
+     GNU CPP version 2.7.2.3.f.1 (Linux/Alpha)
      #include "..." search starts here:
      #include <...> search starts here:
       ./include
       /usr/local/include
       /usr/alpha-unknown-linux/include
-      /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.2.f.3/include
+      /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.3.f.1/include
       /usr/include
      End of search list.
       ./f771 /tmp/cca18048.i -fset-g77-defaults -quiet -dumpbase ...
-     GNU F77 version 2.7.2.2.f.3 (Linux/Alpha) compiled ...
+     GNU F77 version 2.7.2.3.f.1 (Linux/Alpha) compiled ...
      GNU Fortran Front End version 0.5.21 compiled: ...
       as -nocpp -o /tmp/cca180481.o /tmp/cca18048.s
       ld -G 8 -O1 -o /tmp/gfa18047 /usr/lib/crt0.o -L. ...
      __G77_LIBF77_VERSION__: 0.5.21
      @(#)LIBF77 VERSION 19970404
      __G77_LIBI77_VERSION__: 0.5.21
-     @(#) LIBI77 VERSION pjw,dmg-mods 19970527
+     @(#) LIBI77 VERSION pjw,dmg-mods 19970816
      __G77_LIBU77_VERSION__: 0.5.21
      @(#) LIBU77 VERSION 19970609
      sh# ./xgcc -B./ -v -o /tmp/delete-me -xc /dev/null -xnone
      Reading specs from ./specs
-     gcc version 2.7.2.2.f.3
+     gcc version 2.7.2.3.f.1
       ./cpp -lang-c -v -isystem ./include -undef ...
-     GNU CPP version 2.7.2.2.f.3 (Linux/Alpha)
+     GNU CPP version 2.7.2.3.f.1 (Linux/Alpha)
      #include "..." search starts here:
      #include <...> search starts here:
       ./include
       /usr/local/include
       /usr/alpha-unknown-linux/include
-      /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.2.f.3/include
+      /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.3.f.1/include
       /usr/include
      End of search list.
       ./cc1 /tmp/cca18063.i -quiet -dumpbase null.c -version ...
-     GNU C version 2.7.2.2.f.3 (Linux/Alpha) compiled ...
+     GNU C version 2.7.2.3.f.1 (Linux/Alpha) compiled ...
       as -nocpp -o /tmp/cca180631.o /tmp/cca18063.s
       ld -G 8 -O1 -o /tmp/delete-me /usr/lib/crt0.o -L. ...
      /usr/lib/crt0.o: In function `__start':

gcc/f/Make-lang.in

@@ -37,6 +37,7 @@
 # - define the names for selecting the language in LANGUAGES.
 #
 # $(srcdir) must be set to the gcc/ source directory (not gcc/f/).
+#
 # Extra flags to pass to recursive makes (and to sub-configure).
 # Use different quoting rules compared with FLAGS_TO_PASS so we can use
 # this to set environment variables as well
@@ -92,6 +93,7 @@ G77_INSTALL_NAME = `t='$(program_transform_name)'; echo g77 | sed $$t`
 # Actual names to use when installing a cross-compiler.
 F77_CROSS_NAME = `t='$(program_transform_cross_name)'; echo f77 | sed $$t`
 G77_CROSS_NAME = `t='$(program_transform_cross_name)'; echo g77 | sed $$t`
+#
 # Define the names for selecting f77 in LANGUAGES.
 # Note that it would be nice to move the dependency on g77
 # into the F77 rule, but that needs a little bit of work
@@ -309,6 +311,7 @@ f/runtime/libU77/Makefile: stmp-f2c.h
 #            $(srcdir)/config/$(xmake_file) $(srcdir)/config/$(tmake_file)
 #	top=`pwd`; cd f/f2c; \
 #          $${top}/f/f2c/configure --srcdir=$${top}/f/f2c
+#
 # Build hooks:
 
 # I'm not sure there's a way of getting f2c into here conditionally on
@@ -373,15 +376,10 @@ $(srcdir)/f/NEWS: f/news0.texi f/news.texi
 	  --no-validate news0.texi -o NEWS
 
 $(srcdir)/f/runtime/configure: $(srcdir)/f/runtime/configure.in 
-	case $(srcdir) in \
-	/*) cd f/runtime && $(MAKE) srcdir=$(srcdir)/f/runtime -f $(srcdir)/f/runtime/Makefile.in rebuilt;; \
-	*) cd f/runtime && $(MAKE) srcdir=../../$(srcdir)/f/runtime -f ../../$(srcdir)/f/runtime/Makefile.in rebuilt;; \
-	esac
+	cd $(srcdir)/f/runtime && $(MAKE) srcdir=. -f Makefile.in rebuilt
 $(srcdir)/f/runtime/libU77/configure: $(srcdir)/f/runtime/libU77/configure.in
-	case $(srcdir) in \
-	/*) cd f/runtime && $(MAKE) srcdir=$(srcdir)/f/runtime -f $(srcdir)/f/runtime/Makefile.in rebuilt;; \
-	*) cd f/runtime && $(MAKE) srcdir=../../$(srcdir)/f/runtime -f ../../$(srcdir)/f/runtime/Makefile.in rebuilt;; \
-	esac
+	cd $(srcdir)/f/runtime && $(MAKE) srcdir=. -f Makefile.in rebuilt
+
 f77.rebuilt: $(srcdir)/f/g77.info $(srcdir)/f/BUGS $(srcdir)/f/INSTALL \
   $(srcdir)/f/NEWS $(srcdir)/f/runtime/configure \
   $(srcdir)/f/runtime/libU77/configure
@@ -389,6 +387,7 @@ f77.rebuilt: $(srcdir)/f/g77.info $(srcdir)/f/BUGS $(srcdir)/f/INSTALL \
 maybe-f2c:
 #For now, omit f2c stuff.  -- burley
 #	case "$(STAGESTUFF)" in *f2c*) $(MAKE) f2c;; esac
+#
 # Install hooks:
 # f771 is installed elsewhere as part of $(COMPILERS).
 
@@ -511,6 +510,7 @@ f77.uninstall:
 	  rm -rf include/f2c.h ; \
 	  rm -rf $(libdir)/libf2c.a ; \
 	fi
+#
 # Clean hooks:
 # A lot of the ancillary files are deleted by the main makefile.
 # We just have to delete files specific to us.
@@ -518,19 +518,12 @@ f77.uninstall:
 f77.mostlyclean:
 	-rm -f f/*$(objext)
 	-rm -f f/fini f/f771 f/stamp-str f/str-*.h f/str-*.j f/intdoc f/ansify f/intdoc.h0
-	-case $(srcdir) in \
-	/*) cd f/runtime; $(MAKE) -f $(srcdir)/f/runtime/Makefile.in mostlyclean;; \
-	*) cd f/runtime; $(MAKE) -f ../../$(srcdir)/f/runtime/Makefile.in mostlyclean;; \
-	esac
+	-cd $(srcdir)/f/runtime; $(MAKE) -f Makefile.in mostlyclean
 f77.clean:
-	-case $(srcdir) in \
-	/*) cd f/runtime; $(MAKE) -f $(srcdir)/f/runtime/Makefile.in clean;; \
-	*) cd f/runtime; $(MAKE) -f ../../$(srcdir)/f/runtime/Makefile.in clean;; \
+	-cd $(srcdir)/f/runtime; $(MAKE) -f Makefile.in clean;; \
 	esac
 f77.distclean:
-	-case $(srcdir) in \
-	/*) cd f/runtime; $(MAKE) -f $(srcdir)/f/runtime/Makefile.in distclean;; \
-	*) cd f/runtime; $(MAKE) -f ../../$(srcdir)/f/runtime/Makefile.in distclean;; \
+	-cd $(srcdir)/f/runtime; $(MAKE) -f Makefile.in distclean;; \
 	esac
 	-rm -f f/Makefile
 # like gcc's extraclean, which does clean f/ for us, but not f/gbe,
@@ -549,11 +542,10 @@ f77.extraclean: f77.distclean
 	-rm -f f/*/*/*lose f/*/*/*.s f/*/*/*.s[0-9] f/*/*/*.i
 # realclean is the pre-2.7.0 name for maintainer-clean
 f77.maintainer-clean f77.realclean: f77.distclean
-	-case $(srcdir) in \
-	/*) cd f/runtime; $(MAKE) -f $(srcdir)/f/runtime/Makefile.in maintainer-clean;; \
-	*) cd f/runtime; $(MAKE) -f ../../$(srcdir)/f/runtime/Makefile.in maintainer-clean;; \
+	-cd $(srcdir)/f/runtime; $(MAKE) -f Makefile.in maintainer-clean;; \
 	esac
 	-rm -f f/g77.info* f/g77.*aux f/TAGS f/BUGS f/INSTALL f/NEWS f/intdoc.texi
+#
 # Stage hooks:
 # The main makefile has already created stage?/f.
 
@@ -590,6 +582,7 @@ f77.stage4:
 	-mv $(LIBF77STAGESTUFF) stage4/f/runtime/libF77
 	-mv $(LIBI77STAGESTUFF) stage4/f/runtime/libI77
 	-mv $(LIBU77STAGESTUFF) stage4/f/runtime/libU77
+#
 # Maintenance hooks:
 
 # This target creates the files that can be rebuilt, but go in the

gcc/f/Makefile.in

@@ -136,6 +136,7 @@ all: all.indirect
 ####host overrides
 ####cross overrides
 ####build overrides
+#
 # Now figure out from those variables how to compile and link.
 
 all.indirect: f/Makefile f771
@@ -201,6 +202,7 @@ FLAGS_TO_PASS = \
 
 .c.o:
 	$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $< -o $@
+#
 # Lists of files for various purposes.
 
 # Language-specific object files for g77
@@ -265,6 +267,7 @@ f/Makefile:
 Makefile: $(srcdir)/f/Makefile.in $(srcdir)/configure
 
 native: f771
+#
 # Compiling object files from source files.
 
 # Note that dependencies on obstack.h are not written
@@ -543,6 +546,7 @@ deps-kinda:
 	      -e 's: \([.]/\)*f/str[.]h: f/stamp-str:g' \
 	      -e 's%^\(.*\)[ ]*: %f/\1: %g'
 
+#
 # These exist for maintenance purposes.
 
 # Update the tags table.

gcc/f/bugs.texi

@@ -5,7 +5,7 @@
 @c The text of this file appears in the file BUGS
 @c in the G77 distribution, as well as in the G77 manual.
 
-@c 1996-08-19
+@c 1996-09-09
 
 @ifclear BUGSONLY
 @node Actual Bugs
@@ -25,21 +25,8 @@ configure, port, build, and install @code{g77},
 @ref{Problems Installing}.
 
 @itemize @bullet
-@cindex DNRM2 miscompiled
-@item
-An old version of the BLAS function @code{DNRM2} is miscompiled
-on ix86 machines when @samp{-O2} (or higher, probably) is
-used.
-The bug is in the @code{gcc} back end, as proven using
-a C translation of a simplified version of @code{DRNM2}
-that illustrates the bug.
-(The code in @file{gcc/reg-stack.c} fails to recognize that,
-after an initial load of @samp{XMAX}, a subsequent load
-must be preceded by a stack pop, or @samp{fstp %st(0)} in
-assembler, to avoid ultimately overflowing the floating-point
-stack.)
-
 @cindex Alpha
+@cindex -O2
 @item
 @code{g77}'s version of @code{gcc}, and probably @code{g77}
 itself, cannot be reliably used with the @samp{-O2} option
@@ -53,6 +40,24 @@ in this case, @samp{R} might be initialized to @samp{4.0}.
 
 Until this bug is fixed, use only @samp{-O1} or no optimization.
 
+@cindex DNRM2
+@cindex stack, 387 coprocessor
+@cindex ix86
+@cindex -O2
+@item
+A code-generation bug afflicts
+Intel x86 targets when @samp{-O2} is specified
+compiling, for example, an old version of
+the @samp{DNRM2} routine.
+The x87 coprocessor stack is being somewhat
+mismanaged in cases where assigned @code{GOTO}
+and @code{ASSIGN} are involved.
+
+Version 0.5.21 of @code{g77} contains an initial
+effort to fix the problem, but this effort is
+incomplete, and a more complete fix is planned
+for the next release.
+
 @cindex SIGNAL() intrinsic
 @cindex intrinsics, SIGNAL()
 @item

gcc/f/com.c

@@ -13874,9 +13874,9 @@ duplicate_decls (tree newdecl, tree olddecl)
   {
     register unsigned olddecl_uid = DECL_UID (olddecl);
 
-    bcopy ((char *) newdecl + sizeof (struct tree_common),
-	   (char *) olddecl + sizeof (struct tree_common),
-	   sizeof (struct tree_decl) - sizeof (struct tree_common));
+    memcpy ((char *) olddecl + sizeof (struct tree_common),
+	    (char *) newdecl + sizeof (struct tree_common),
+	    sizeof (struct tree_decl) - sizeof (struct tree_common));
     DECL_UID (olddecl) = olddecl_uid;
   }
 
@@ -15744,7 +15744,7 @@ open_include_file (filename, searchptr)
   else
     {
       dir = (char *) xmalloc (p - filename + 1);
-      bcopy (filename, dir, p - filename);
+      memcpy (dir, filename, p - filename);
       dir[p - filename] = '\0';
       from = p + 1;
       map = read_name_map (dir);
@@ -15958,7 +15958,7 @@ ffecom_file_ (char *name)
      early #line directives (when -g is in effect).  */
 
   fp = &instack[++indepth];
-  bzero ((char *) fp, sizeof (FILE_BUF));
+  memset ((char *) fp, 0, sizeof (FILE_BUF));
   if (name == NULL)
     name = "";
   fp->nominal_fname = fp->fname = name;
@@ -16218,7 +16218,7 @@ ffecom_open_include_ (char *name, ffewhereLine l, ffewhereColumn c)
   instack[indepth].column = ffewhere_column_use (c);
 
   fp = &instack[indepth + 1];
-  bzero ((char *) fp, sizeof (FILE_BUF));
+  memset ((char *) fp, 0, sizeof (FILE_BUF));
   fp->nominal_fname = fp->fname = fname;
   fp->dir = searchptr;
 

gcc/f/g77.texi

@@ -102,7 +102,7 @@ was contributed to Craig by David Ronis (@email{ronis@@onsager.chem.mcgill.ca}).
 @sp 2
 @center James Craig Burley
 @sp 3
-@center Last updated 1997-08-24
+@center Last updated 1997-09-09
 @sp 1
 @c The version number appears some more times in this file.
 
@@ -3251,7 +3251,7 @@ users use @code{g77}.
 such changes to @code{g77}.
 
 To find out about existing bugs and ongoing plans for GNU
-Fortran, retrieve @url{ftp://alpha.gnu.ai.mit.edu/g77.plan}
+Fortran, retrieve @uref{ftp://alpha.gnu.ai.mit.edu/g77.plan}
 or, if you cannot do that, email
 @email{fortran@@gnu.ai.mit.edu} asking for a recent copy of the
 GNU Fortran @file{.plan} file.
@@ -3699,8 +3699,8 @@ way through the compilation process instead of being lost.
 GNU Fortran supports a variety of extensions to, and dialects
 of, the Fortran language.
 Its primary base is the ANSI FORTRAN 77 standard, currently available on
-the network at @url{http://kumo.swcp.com/fortran/F77_std/f77_std.html}
-or in @url{ftp://ftp.ast.cam.ac.uk/pub/michael/}.
+the network at @uref{http://kumo.swcp.com/fortran/F77_std/f77_std.html}
+or in @uref{ftp://ftp.ast.cam.ac.uk/pub/michael/}.
 It offers some extensions that are popular among users
 of UNIX @code{f77} and @code{f2c} compilers, some that
 are popular among users of other compilers (such as Digital
@@ -3711,7 +3711,7 @@ by GNU Fortran.
 @cindex textbooks
 (If you need a text on Fortran,
 a few freely available electronic references have pointers from
-@url{http://www.fortran.com/fortran/Books/}.)
+@uref{http://www.fortran.com/fortran/Books/}.)
 
 Part of what defines a particular implementation of a Fortran
 system, such as @code{g77}, is the particular characteristics
@@ -7867,7 +7867,7 @@ options @code{g77} passes by running @samp{g77 -v}.
 @cindex cfortran.h
 @cindex Netlib
 Even if you don't actually use it as a compiler, @samp{f2c} from
-@url{ftp://ftp.netlib.org/f2c/src}, can be a useful tool when you're
+@uref{ftp://ftp.netlib.org/f2c/src}, can be a useful tool when you're
 interfacing (linking) Fortran and C@.
 @xref{f2c Skeletons and Prototypes,,Generating Skeletons and Prototypes with @code{f2c}}.
 
@@ -7877,7 +7877,7 @@ build the @file{src} directory from the distribution, consult the
 @code{f2c} program on your path.
 
 Something else that might be useful is @samp{cfortran.h} from
-@url{ftp://zebra/desy.de/cfortran}.
+@uref{ftp://zebra/desy.de/cfortran}.
 This is a fairly general tool which
 can be used to generate interfaces for calling in both directions
 between Fortran and C@.
@@ -7921,8 +7921,8 @@ the return type of a @code{REAL} @code{FUNCTION}.)
 @samp{-P} option to generate C prototypes appropriate for calling the
 Fortran.@footnote{The files generated like this can also be used for
 inter-unit consistency checking of dummy and actual arguments, although
-the @samp{ftnchek} tool from @url{ftp://ftp.netlib.org/fortran}
-or @url{ftp://ftp.dsm.fordham.edu} is
+the @samp{ftnchek} tool from @uref{ftp://ftp.netlib.org/fortran}
+or @uref{ftp://ftp.dsm.fordham.edu} is
 probably better for this purpose.}
 If the Fortran code containing any
 routines to be called from C is in file @file{joe.f}, use the command
@@ -10164,7 +10164,7 @@ or installing @code{g77} is not provided here.
 
 To find out about major bugs discovered in the current release and
 possible workarounds for them, retrieve
-@url{ftp://alpha.gnu.ai.mit.edu/g77.plan}.
+@uref{ftp://alpha.gnu.ai.mit.edu/g77.plan}.
 
 (Note that some of this portion of the manual is lifted
 directly from the @code{gcc} manual, with minor modifications
@@ -10270,7 +10270,7 @@ How to cope with such problems is well beyond the scope
 of this manual.
 
 However, users of Linux-based systems (such as GNU/Linux)
-should review @url{http://www.bitwizard.nl/sig11}, a source
+should review @uref{http://www.bitwizard.nl/sig11}, a source
 of detailed information on diagnosing hardware problems,
 by recognizing their common symptoms.
 
@@ -12272,8 +12272,8 @@ their use into selective changes in your own code.
 @pindex ftncheck
 Validate your code with @code{ftnchek} or a similar code-checking
 tool.
-@code{ftncheck} can be found at @url{ftp://ftp.netlib.org/fortran}
-or @url{ftp://ftp.dsm.fordham.edu}.
+@code{ftncheck} can be found at @uref{ftp://ftp.netlib.org/fortran}
+or @uref{ftp://ftp.dsm.fordham.edu}.
 
 @item
 Try your code out using other Fortran compilers, such as @code{f2c}.

gcc/f/global.c

 /* global.c -- Implementation File (module.c template V1.0)
-   Copyright (C) 1995 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1997 Free Software Foundation, Inc.
    Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
 
 This file is part of GNU Fortran.

gcc/f/install.texi

@@ -5,7 +5,7 @@
 @c The text of this file appears in the file INSTALL
 @c in the G77 distribution, as well as in the G77 manual.
 
-@c 1997-08-17
+@c 1997-09-09
 
 @ifclear INSTALLONLY
 @node Installation
@@ -61,20 +61,21 @@ There are GNU versions of all these available---in fact,
 a complete GNU UNIX system can be put together on
 most systems, if desired.
 
+=======
 The version of GNU @code{gzip} used to package this release
 is 1.24.
 (The version of GNU @code{tar} used to package this release
 is 1.11.2.)
 
-@item @file{gcc-2.7.2.2.tar.gz}
+@item @file{gcc-2.7.2.3.tar.gz}
 You need to have this, or some other applicable, version
 of @code{gcc} on your system.
 The version should be an exact copy of a distribution
 from the FSF.
 Its size is approximately 7.1MB.
 
-If you've already unpacked @file{gcc-2.7.2.2.tar.gz} into a
-directory (named @file{gcc-2.7.2.2}) called the @dfn{source tree}
+If you've already unpacked @file{gcc-2.7.2.3.tar.gz} into a
+directory (named @file{gcc-2.7.2.3}) called the @dfn{source tree}
 for @code{gcc}, you can delete the distribution
 itself, but you'll need to remember to skip any instructions to unpack
 this distribution.
@@ -99,7 +100,7 @@ using, how you build @code{g77}, and how much of it you
 install (primarily, which languages you install).
 
 The sizes shown below assume all languages distributed
-in @code{gcc-2.7.2.2}, plus @code{g77}, will be built
+in @code{gcc-2.7.2.3}, plus @code{g77}, will be built
 and installed.
 These sizes are indicative of GNU/Linux systems on
 Intel x86 running COFF and on Digital Alpha (AXP) systems
@@ -759,7 +760,7 @@ already reside in @file{/usr/FSF}, a naming convention
 used by the author of @code{g77} on his own system:
 
 @example
-/usr/FSF/gcc-2.7.2.2.tar.gz
+/usr/FSF/gcc-2.7.2.3.tar.gz
 /usr/FSF/g77-0.5.21.tar.gz
 @end example
 
@@ -801,20 +802,20 @@ These explanations follow this list of steps.
 @example
 sh[ 1]# @kbd{cd /usr/src}
 @set source-dir 1
-sh[ 2]# @kbd{gunzip -c < /usr/FSF/gcc-2.7.2.2.tar.gz | tar xf -}
+sh[ 2]# @kbd{gunzip -c < /usr/FSF/gcc-2.7.2.3.tar.gz | tar xf -}
 [Might say "Broken pipe"...that is normal on some systems.]
 @set unpack-gcc 2
 sh[ 3]# @kbd{gunzip -c < /usr/FSF/g77-0.5.21.tar.gz | tar xf -}
 ["Broken pipe" again possible.]
 @set unpack-g77 3
-sh[ 4]# @kbd{ln -s gcc-2.7.2.2 gcc}
+sh[ 4]# @kbd{ln -s gcc-2.7.2.3 gcc}
 @set link-gcc 4
 sh[ 5]# @kbd{ln -s g77-0.5.21 g77}
 @set link-g77 5
 sh[ 6]# @kbd{mv -i g77/* gcc}
 [No questions should be asked by mv here; or, you made a mistake.]
 @set merge-g77 6
-sh[ 7]# @kbd{patch -p1 -V t -d gcc < gcc/f/gbe/2.7.2.2.diff}
+sh[ 7]# @kbd{patch -p1 -V t -d gcc < gcc/f/gbe/2.7.2.3.diff}
 [Unless patch complains about rejected patches, this step worked.]
 @set apply-patch 7
 sh[ 8]# @kbd{cd gcc}
@@ -882,7 +883,7 @@ version of @code{g77}, and then apply the appropriate patches
 to achieve the same result---a source tree containing version
 0.5.21 of @code{g77}.
 
-@item Step @value{link-gcc}: @kbd{ln -s gcc-2.7.2.2 gcc}
+@item Step @value{link-gcc}: @kbd{ln -s gcc-2.7.2.3 gcc}
 @item Step @value{link-g77}: @kbd{ln -s g77-0.5.21 g77}
 These commands mainly help reduce typing,
 and help reduce visual clutter in examples
@@ -1105,9 +1106,9 @@ and @code{g77} is:
 
 @example
 sh# @kbd{cd /usr/src}
-sh# @kbd{gunzip -c /usr/FSF/gcc-2.7.2.2.tar.gz | tar xf -}
+sh# @kbd{gunzip -c /usr/FSF/gcc-2.7.2.3.tar.gz | tar xf -}
 sh# @kbd{gunzip -c /usr/FSF/g77-0.5.21.tar.gz | tar xf -}
-sh# @kbd{ln -s gcc-2.7.2.2 gcc}
+sh# @kbd{ln -s gcc-2.7.2.3 gcc}
 sh# @kbd{ln -s g77-0.5.21 g77}
 sh# @kbd{mv -i g77/* gcc}
 @end example
@@ -1133,7 +1134,7 @@ g77/f
 
 All three entries should be moved (or copied) into a @code{gcc}
 source tree (typically named after its version number and
-as it appears in the FSF distributions---e.g. @file{gcc-2.7.2.2}).
+as it appears in the FSF distributions---e.g. @file{gcc-2.7.2.3}).
 
 @file{g77/f} is the subdirectory containing all of the
 code, documentation, and other information that is specific
@@ -1749,43 +1750,43 @@ sh# @kbd{./g77 --driver=./xgcc -B./ -v}
 g77 version 0.5.21
  ./xgcc -B./ -v -fnull-version -o /tmp/gfa18047 @dots{}
 Reading specs from ./specs
-gcc version 2.7.2.2.f.3
+gcc version 2.7.2.3.f.1
  ./cpp -lang-c -v -isystem ./include -undef @dots{}
-GNU CPP version 2.7.2.2.f.3 (Linux/Alpha)
+GNU CPP version 2.7.2.3.f.1 (Linux/Alpha)
 #include "..." search starts here:
 #include <...> search starts here:
  ./include
  /usr/local/include
  /usr/alpha-unknown-linux/include
- /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.2.f.3/include
+ /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.3.f.1/include
  /usr/include
 End of search list.
  ./f771 /tmp/cca18048.i -fset-g77-defaults -quiet -dumpbase @dots{}
-GNU F77 version 2.7.2.2.f.3 (Linux/Alpha) compiled @dots{}
+GNU F77 version 2.7.2.3.f.1 (Linux/Alpha) compiled @dots{}
 GNU Fortran Front End version 0.5.21 compiled: @dots{}
  as -nocpp -o /tmp/cca180481.o /tmp/cca18048.s
  ld -G 8 -O1 -o /tmp/gfa18047 /usr/lib/crt0.o -L. @dots{}
 __G77_LIBF77_VERSION__: 0.5.21
 @@(#)LIBF77 VERSION 19970404
 __G77_LIBI77_VERSION__: 0.5.21
-@@(#) LIBI77 VERSION pjw,dmg-mods 19970527
+@@(#) LIBI77 VERSION pjw,dmg-mods 19970816
 __G77_LIBU77_VERSION__: 0.5.21
 @@(#) LIBU77 VERSION 19970609
 sh# @kbd{./xgcc -B./ -v -o /tmp/delete-me -xc /dev/null -xnone}
 Reading specs from ./specs
-gcc version 2.7.2.2.f.3
+gcc version 2.7.2.3.f.1
  ./cpp -lang-c -v -isystem ./include -undef @dots{}
-GNU CPP version 2.7.2.2.f.3 (Linux/Alpha)
+GNU CPP version 2.7.2.3.f.1 (Linux/Alpha)
 #include "..." search starts here:
 #include <...> search starts here:
  ./include
  /usr/local/include
  /usr/alpha-unknown-linux/include
- /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.2.f.3/include
+ /usr/lib/gcc-lib/alpha-unknown-linux/2.7.2.3.f.1/include
  /usr/include
 End of search list.
  ./cc1 /tmp/cca18063.i -quiet -dumpbase null.c -version @dots{}
-GNU C version 2.7.2.2.f.3 (Linux/Alpha) compiled @dots{}
+GNU C version 2.7.2.3.f.1 (Linux/Alpha) compiled @dots{}
  as -nocpp -o /tmp/cca180631.o /tmp/cca18063.s
  ld -G 8 -O1 -o /tmp/delete-me /usr/lib/crt0.o -L. @dots{}
 /usr/lib/crt0.o: In function `__start':

gcc/f/intdoc.c

@@ -282,6 +282,8 @@ dumpem ()
       summaries[cc_summaries[i].imp] = cc_summaries[i].text;
     }
 
+  printf ("@c This file is automatically derived from intdoc.c, intdoc.in,\n");
+  printf ("@c ansify.c, intrin.def, and intrin.h.  Edit those files instead.\n");
   printf ("@menu\n");
   for (i = 0; ((size_t) i) < ARRAY_SIZE (names); ++i)
     {

gcc/f/intdoc.texi

+@c This file is automatically derived from intdoc.c, intdoc.in,
+@c ansify.c, intrin.def, and intrin.h.  Edit those files instead.
 @menu
 @ifset familyF2U
 * Abort Intrinsic::     Abort the program.

gcc/f/intrin.h

 /* intrin.h -- Public interface for intrin.c
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1995-1997 Free Software Foundation, Inc.
    Contributed by James Craig Burley (burley@gnu.ai.mit.edu).
 
 This file is part of GNU Fortran.

gcc/f/news.texi

@@ -5,7 +5,7 @@
 @c The text of this file appears in the file BUGS
 @c in the G77 distribution, as well as in the G77 manual.
 
-@c 1997-08-25
+@c 1997-09-09
 
 @ifclear NEWSONLY
 @node News
@@ -152,6 +152,13 @@ of arguments exist.
 This avoids a compiler crash.
 
 @item
+Fix parsing bug whereby @code{g77} rejected a
+second initialization specification immediately
+following the first's closing @samp{/} without
+an intervening comma in a @code{DATA} statement,
+and the second specification was an implied-DO list.
+
+@item
 Improve performance of the @code{gcc} back end so
 certain complicated expressions involving @code{COMPLEX}
 arithmetic (especially multiplication) don't appear to
@@ -164,12 +171,13 @@ back end.
 @item
 Integrate GNU Ada's (GNAT's) changes to the back end,
 which consist almost entirely of bug fixes.
+These fixes are circa version 3.10p of GNAT.
 
 @item
 Include some other @code{gcc} fixes that seem useful in
 @code{g77}'s version of @code{gcc}.
 (See @file{gcc/ChangeLog} for details---compare it
-to that file in the vanilla @code{gcc-2.7.2.2.tar.gz}
+to that file in the vanilla @code{gcc-2.7.2.3.tar.gz}
 distribution.)
 
 @item
@@ -224,15 +232,25 @@ during the assembler or linker phase, a compiler
 crash, or generation of incorrect code.
 
 @item
-Improve alias analysis code to properly handle
-output registers (such as the @samp{%o} registers
-on the SPARC).
+Make some fixes to alias analysis code.
 
 @item
 Add support for @code{restrict} keyword in @code{gcc}
 front end.
 
 @item
+Support @code{gcc} version 2.7.2.3
+(modified by @code{g77} into version 2.7.2.3.f.1),
+and remove
+support for prior versions of @code{gcc}.
+
+@item
+Incorporate GNAT's patches to the @code{gcc} back
+end into @code{g77}'s, so GNAT users do not need
+to apply GNAT's patches to build both GNAT and @code{g77}
+from the same source tree.
+
+@item
 Modify @code{make} rules and related code so that
 generation of Info documentation doesn't require
 compilation using @code{gcc}.
@@ -269,10 +287,6 @@ Fix @code{libf2c} build procedure to re-archive library
 if previous attempt to archive was interrupted.
 
 @item
-Fix @code{gcc} to more easily support configuring on
-Pentium Pro (686) systems.
-
-@item
 Change @code{gcc} to unroll loops only during the last
 invocation (of as many as two invocations) of loop
 optimization.

gcc/f/proj.h

@@ -64,6 +64,7 @@ the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
 /* Include files everyone gets. */
 
+#include "config.j"		/* Must come before any other #includes in gcc. */
 #include "assert.j"		/* Use gcc's assert.h. */
 #include <stdio.h>
 #include <stddef.h>

gcc/f/runtime/ChangeLog

+Tue Sep  9 00:33:24 1997  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* Version 0.5.21 released.
+
+Mon Sep  8 19:39:01 1997  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* libI77/close.c (f_exit): Fix thinko, inverted test
+	of whether initialization done, so exiting now closes
+	open units again.
+
 Tue Aug 26 01:42:21 1997  Craig Burley  <burley@gnu.ai.mit.edu>
 
 	From Jim Wilson:

gcc/f/runtime/Makefile.in

@@ -174,7 +174,7 @@ all: ../../include/f2c.h $(lib)
 $(lib): stamp-lib ; @true
 stamp-lib: stamp-libf77 stamp-libi77 stamp-libu77
 	rm -f stamp-lib
-	$(AR) $(AR_FLAGS) $(lib) $(FOBJ) $(IOBJ) $(UOBJ)
+	$(AR) $(AR_FLAGS) $(lib) $?
 	rm -fr libE77
 	mkdir libE77
 	for name in $(F2CEXT); \

gcc/f/runtime/libI77/Version.c

@@ -3,7 +3,7 @@ static char junk[] = "\n@(#) LIBI77 VERSION pjw,dmg-mods 19970816\n";
 /*
 */
 
-char __G77_LIBI77_VERSION__[] = "0.5.21-19970811";
+char __G77_LIBI77_VERSION__[] = "0.5.21";
 
 /*
 2.01	$ format added

gcc/f/runtime/libU77/hostnm_.c

@@ -27,7 +27,7 @@ Boston, MA 02111-1307, USA.  */
 #if HAVE_UNISTD_H
 #  include <unistd.h>
 #endif
-#include <errno.h>
+#include <errno.h>		/* for ENOSYS */
 #include "f2c.h"
 
 integer G77_hostnm_0 (char *name, ftnlen Lname)