`Version_string' as C++ object was not visible to linker from C

object files.
Add `const' to `Version_string'.

* src/utils/pfbtops/pfbtops.c (main), src/roff/groff/groff.cc
(main), src/roff/troff/input.cc (main), src/preproc/tbl/main.cc
(main), src/preproc/pic/main.cc (main), src/preproc/eqn/main.cc
(main), src/preproc/grn/main.cc (main), src/preproc/html/pre-html.cc
(scanArguments), src/preproc/refer/refer.cc (main),
src/preproc/soelim/soelim.cc (main), src/devices/grotty/tty.cc
(main), src/devices/grodvi/dvi.cc (main), src/devices/grolj4/lj4.cc
(main), src/devices/grohtml/post-html.cc (main),
src/devices/grolbp/lbp.cc (main), src/utils/tfmtodit/tfmtodit.cc
(main), src/utils/hpftodit/hpftodit.cc (main),
src/utils/lookbib/lookbib.cc (main), src/utils/indxbib/indxbib.cc
(main), src/utils/lkbib/lkbib.cc (main),
src/utils/addftinfo/addftinfo.cc (main): Implement it.

* src/roff/groff/pipeline.c: Add _UWIN.
* src/include/nonposix.h: Ditto.


* src/include/lib.h: Use HAVE_STRERROR.
* src/roff/groff/pipeline.c: Ditto.
* src/preproc/html/pre-html.cc: Remove declaration of `strerror'.
* src/libs/libgroff/Makefile.sub (version.cc): Add `extern "C"'.
* src/utils/pfbtops/pfbtops.c: Add copyright notice.
* win32-diffs: Updated.
* src/utils/hpftodit/hpftodit.cc (read_map): Fix compiler warning.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/devices/grodvi/dvi.cc b/src/devices/grodvi/dvi.cc
index ec227472..b5b7c49d 100644
--- a/src/devices/grodvi/dvi.cc
+++ b/src/devices/grodvi/dvi.cc
@@ -22,6 +22,8 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include "driver.h"
 #include "nonposix.h"
 
+extern "C" const char *Version_string;
+
 #define DEFAULT_LINEWIDTH 40
 static int linewidth = DEFAULT_LINEWIDTH;
 
@@ -863,7 +865,6 @@ int main(int argc, char **argv)
     switch(c) {
     case 'v':
       {
-	extern const char *Version_string;
 	printf("GNU grodvi (groff) version %s\n", Version_string);
 	exit(0);
 	break;