* src/libs/libbib/map.c, src/libs/libgroff/getcwd.c,

src/libs/libgroff/strtol.c, src/preproc/html2/image.cc,
src/preproc/html2/pre-html.cc, src/preproc/html2/pushbackbuffer.cc,
src/roff/groff/pipeline.c: Removing `#ifndef errno' to avoid
compilation errors with some compilers.  It seems that this code
is no longer necessary -- if yes, it is easy to add some #ifdef's
for that particular old-fashioned compiler.

* MORE.STUFF: Added info about Meta-tbl.

* doc/groff.texinfo: Added more info about `.if "..."..."'.

10 files changed, 40 insertions, 32 deletions

diff --git a/ChangeLog b/ChangeLog
index 2658bbff..b2f33c65 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2000-10-09  Werner LEMBERG  <wl@gnu.org>
+
+	* src/libs/libbib/map.c, src/libs/libgroff/getcwd.c,
+	src/libs/libgroff/strtol.c, src/preproc/html2/image.cc,
+	src/preproc/html2/pre-html.cc, src/preproc/html2/pushbackbuffer.cc,
+	src/roff/groff/pipeline.c: Removing `#ifndef errno' to avoid
+	compilation errors with some compilers.  It seems that this code
+	is no longer necessary -- if yes, it is easy to add some #ifdef's
+	for that particular old-fashioned compiler.
+
+	* MORE.STUFF: Added info about Meta-tbl.
+
+	* doc/groff.texinfo: Added more info about `.if "..."..."'.
+
 2000-10-07  Werner LEMBERG  <wl@gnu.org>
 
 	Adding a new escape sequence \B'...': If the string between
diff --git a/MORE.STUFF b/MORE.STUFF
index 7dba3653..5b0b1dcf 100644
--- a/MORE.STUFF
+++ b/MORE.STUFF
@@ -112,6 +112,12 @@ miscellaneous
     of AT&T, and so should be invoked with the UNIX troff -mm flag; they
     should also work with the GNU troff -mm flag.
 
+. Thomas Baruchel <baruchel@libertysurf.fr> has developed Meta-tbl, a tbl
+  postprocessor to manipulate table cells (like adding gray shades).  The
+  latest version can be found at
+
+    http://perso.libertysurf.fr/baruchel/
+
 documentation
 -------------
 
diff --git a/doc/groff.texinfo b/doc/groff.texinfo
index 3056cd1e..3cc259d2 100644
--- a/doc/groff.texinfo
+++ b/doc/groff.texinfo
@@ -6028,12 +6028,26 @@ True if the document is being processed in nroff mode.
 @findex troff
 True if the document is being processed in troff mode.
 
-@item '@var{xxx}'@var{yyy}'
+@item "@var{xxx}"@var{yyy}"
 True if the string @var{xxx} is equal to the string @var{yyy}.  Other
-characters can be used in place of the single quotes.
-@c XXX (Which?)
-The strings are ``formatted'' before being compared.
-@c XXX (?)
+characters can be used in place of the double quotes.
+@c XXX which characters?
+The strings are ``formatted'' before being compared; for example,
+
+@example
+.ie "|"\fR|\fP" \
+.  tm true
+.el \
+.  tm false
+@end example
+
+yields ``true''.  The resulting motions, character sizes, and fonts
+have to match, and not the individual motion, size, and font requests.
+@Here, samp{|} and @samp{\fR|\fP} both result in a roman @samp{|}
+character with the same point size and at the same location on the
+page, so the strings are equal.  If @samp{.ft@w{ }I} had been added
+before the @samp{.ie}, then the result would be ``false'' because
+@samp{|} produces an italic @samp{|} rather than a roman one.
 
 @item r@var{xxx}
 True if there is a number register named @var{xxx}.
@@ -6318,7 +6332,7 @@ name.
 This would be called as
 
 @example
-.vl $Id: groff.texinfo,v 1.44 2000/09/11 20:01:03 wlemb Exp $
+.vl $Id: groff.texinfo,v 1.45 2000/10/09 19:41:55 wlemb Exp $
 @end example
 
 @xref{Request Arguments}.
diff --git a/src/libs/libbib/map.c b/src/libs/libbib/map.c
index 3632a11e..ee5d0087 100644
--- a/src/libs/libbib/map.c
+++ b/src/libs/libbib/map.c
@@ -52,10 +52,6 @@ int unmap(p, len)
 
 #include <errno.h>
 
-#ifndef errno
-extern int errno;
-#endif
-
 char *mapread(fd, nbytes)
      int fd;
      int nbytes;
diff --git a/src/libs/libgroff/getcwd.c b/src/libs/libgroff/getcwd.c
index 208e8111..ed1642fe 100644
--- a/src/libs/libgroff/getcwd.c
+++ b/src/libs/libgroff/getcwd.c
@@ -3,9 +3,6 @@
 #include <sys/param.h>
 #include <string.h>
 #include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
 
 char *getwd();
 
diff --git a/src/libs/libgroff/strtol.c b/src/libs/libgroff/strtol.c
index 071bade8..7858ba5c 100644
--- a/src/libs/libgroff/strtol.c
+++ b/src/libs/libgroff/strtol.c
@@ -20,9 +20,6 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include <string.h>
 #include <ctype.h>
 #include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
 
 #ifdef HAVE_LIMITS_H
 #include <limits.h>
diff --git a/src/preproc/html2/image.cc b/src/preproc/html2/image.cc
index 23708b64..cba34820 100755
--- a/src/preproc/html2/image.cc
+++ b/src/preproc/html2/image.cc
@@ -38,10 +38,6 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include <unistd.h>
 #endif
 
-#ifndef errno
-extern int errno;
-#endif
-
 #ifdef _POSIX_VERSION
 #include <sys/wait.h>
 #define PID_T pid_t
diff --git a/src/preproc/html2/pre-html.cc b/src/preproc/html2/pre-html.cc
index 8824f3ac..872e7270 100755
--- a/src/preproc/html2/pre-html.cc
+++ b/src/preproc/html2/pre-html.cc
@@ -39,10 +39,6 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include <unistd.h>
 #endif
 
-#ifndef errno
-extern int errno;
-#endif
-
 #ifdef _POSIX_VERSION
 #include <sys/wait.h>
 #define PID_T pid_t
diff --git a/src/preproc/html2/pushbackbuffer.cc b/src/preproc/html2/pushbackbuffer.cc
index d556c748..1e7ad8b9 100755
--- a/src/preproc/html2/pushbackbuffer.cc
+++ b/src/preproc/html2/pushbackbuffer.cc
@@ -37,10 +37,6 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include <unistd.h>
 #endif
 
-#ifndef errno
-extern int errno;
-#endif
-
 #include "pushbackbuffer.h"
 #include "pre-html.h"
 
diff --git a/src/roff/groff/pipeline.c b/src/roff/groff/pipeline.c
index 238b10c5..cf91bdd4 100644
--- a/src/roff/groff/pipeline.c
+++ b/src/roff/groff/pipeline.c
@@ -34,10 +34,6 @@ Compile options are:
 #include <unistd.h>
 #endif
 
-#ifndef errno
-extern int errno;
-#endif
-
 extern char *strerror();
 
 #ifdef _POSIX_VERSION