Support building Emacs on MS-Windows using the Posix configury.

 lib/Makefile.am: If building for MS-Windows, include
 nt/gnulib.mk instead of lib/gnulib.mk.
 configure.ac: Adapt to MSYS build on MS-Windows.
 Makefile.in (NTDIR): New variable, for the MSYS build on
 MS-Windows.
 (SUBDIR): Add $(NTDIR).
 (.PHONY): Add epaths-force-w32.
 (msys_to_w32): New variable.
 (epaths-force-w32, install-nt, uninstall-nt): New targets.
 (lib-src src): Add $(NTLIB) to prerequisites.
 (lib lib-src lisp leim nt): Add 'nt'.
 (config.status): Use $(CFG).
 (.PHONY): Add install-$(NTDIR) and uninstall-$(NTDIR).
 (install, install-arch-dep): Add install-$(NTDIR).
 (uninstall): Depend on uninstall-$(NTDIR).
 (mostlyclean, clean, distclean, bootstrap-clean): Add 'nt'.
 * GNUmakefile (CFG): New variable, uses mingw-cfg.site as
 CONFIG_SITE for the MSYS build on MS-Windows.
 (Makefile): Use $(CFG).
 .bzrignore: Ignore *.res, *.tmp, and *.map.  Remove
 src/emacs.res.

 etc/NEWS: Advertise the MSYS build on MS-Windows.

 leim/Makefile.in (leim-list.el, check-declare): Use reveal-filename.

 lib-src/update-game-score.c [WINDOWSNT]: Include "ntlib.h".
 lib-src/ntlib.h (sleep): Update prototype.
 (geteuid): Add prototype.
 lib-src/ntlib.c (sleep): Now returns an unsigned value.
 (getgid): New function.
 lib-src/Makefile.in (CLIENTW, LIB_WSOCK32, LIBS_ECLIENT, NTLIB)
 (CLIENTRES, WINDRES, NTINC, NTDEPS): New variables.
 (INSTALLABLES): Add $(CLIENTW).
 (LIBS_MOVE): Use $(LIB_WSOCK32).
 ($(DESTDIR)${archlibdir}): Use $(EXEEXT) on update-game-score.
 (test-distrib${EXEEXT}): Use $(EXEEXT) on test-distrib.
 (etags${EXEEXT}, ebrowse${EXEEXT}, ctags${EXEEXT})
 (profile${EXEEXT}, make-docfile${EXEEXT}, movemail${EXEEXT})
 (emacsclient${EXEEXT}, hexl${EXEEXT}, update-game-score${EXEEXT}):
 Add $(NTLIB) to prerequisites.  Use $(EXEEXT).
 (pop.o): Add pop.h to prerequisites.
 (emacsclientw${EXEEXT}, ntlib.o): New targets.
 (emacsclient.res): New target.

 lisp/subr.el (reveal-filename): New function.
 lisp/loadup.el: Compute Emacs executable versions on MS-Windows,
 where executables have the .exe extension.  Add a hard link
 emacs-XX.YY.ZZ.exe on MS-Windows.
 lisp/Makefile.in (XARGS_LIMIT): New variable.
 (custom-deps, finder-data, autoloads)
 ($(MH_E_DIR)/mh-loaddefs.el, $(TRAMP_DIR)/tramp-loaddefs.el)
 ($(CAL_DIR)/cal-loaddefs.el, $(CAL_DIR)/diary-loaddefs.el)
 ($(CAL_DIR)/hol-loaddefs.el): Use reveal-filename.
 (compile-main): Limit xargs according to $(XARGS_LIMIT).

 nt/msysconfig.sh: New file.
 nt/mingw-cfg.site: New file.
 nt/makefile.w32-in (LOCAL_FLAGS): Add -DOLD_PATHS=1.
 nt/inc/unistd.h: Include pwd.h and sys/types.h.
 nt/inc/sys/time.h (_TIMEVAL_DEFINED, timerisset, timercmp)
 (timerclear): Define.
 (gettimeofday): Adjust signature to be Posix compatible, by using
 the 'restrict' keyword.
 nt/inc/sys/stat.h (UTIME_NOW, UTIME_OMIT): Define.
 (struct _stat, struct _stati64): Define.
 nt/inc/sys/socket.h (timeval): Define only for MSVC.
 (FD_SET, FD_CLR, FD_ISSET, fd_set): Redefine only if
 EMACS_CONFIG_H is defined.
 (timeval): Undefine only for MSVC.
 nt/inc/ms-w32.h (HAVE___BUILTIN_UNWIND_INIT, restrict)
 (HAVE_WINDOW_SYSTEM, HAVE_MENUS, EMACS_CONFIGURATION)
 (EMACS_CONFIG_OPTIONS, HAVE_LONG_LONG_INT)
 (HAVE_UNSIGNED_LONG_LONG_INT): Define only if not already defined.
 (fileno): Move definition after including stdio.h.
 (sigset_t): Guard typedef by _W64.
 nt/gnulib.mk: New file.
 nt/epaths.nt: New file.
 nt/addpm.c [!OLD_PATHS]: Include src/epaths.h, instead of having a
 copy of the file names there.
 <env_vars> [!OLD_PATHS]: Use macros from epaths.h instead of
 literal strings.
 nt/Makefile.in: New file.
 nt/INSTALL.MSYS: New file.
 nt/INSTALL: Mention INSTALL.MSYS.

 src/w32.c: Include epaths.h.
 (init_environment): Use cmdproxy.exe without leading directories.
 Support emacs.exe in src; point SHELL to cmdproxy in ../nt in that
 case.
 (gettimeofday): Adjust signature and return value to Posix
 expectations.
 src/unexw32.c (open_output_file): Delete the existing emacs.exe
 before creating it, to break the hard link to the versioned
 executable.
 src/Makefile.in (EMACS_MANIFEST, CM_OBJ, TEMACS_POST_LINK)
 (ADDSECTION, EMACS_HEAPSIZE, MINGW_TEMACS_POST_LINK)
 (FIRSTFILE_OBJ): New variables.
 (W32_RES): Rename to EMACSRES.  All users changed.
 (base_obj): Use $(CM_OBJ).
 (ALLOBJS): Use $(FIRSTFILE_OBJ).
 (emacs$(EXEEXT)): Depend on $(ADDSECTION).
 (temacs$(EXEEXT)): Use $(TEMACS_POST_LINK), and move
 $(W32_RES_LINK) before $(LIBES).
 (emacs.res): Depend on $(EMACS_MANIFEST).  Put emacs.rc in nt.

5 files changed, 98 insertions, 29 deletions

diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index 63108cae9a9..6ff653b7be6 100644
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1,3 +1,27 @@
+2013-05-16  Eli Zaretskii  <eliz@gnu.org>
+
+        * update-game-score.c [WINDOWSNT]: Include "ntlib.h".
+
+        * ntlib.h (sleep): Update prototype.
+        (geteuid): Add prototype.
+
+        * ntlib.c (sleep): Now returns an unsigned value.
+        (getgid): New function.
+
+        * Makefile.in (CLIENTW, LIB_WSOCK32, LIBS_ECLIENT, NTLIB)
+        (CLIENTRES, WINDRES, NTINC, NTDEPS): New variables.
+        (INSTALLABLES): Add $(CLIENTW).
+        (LIBS_MOVE): Use $(LIB_WSOCK32).
+        ($(DESTDIR)${archlibdir}): Use $(EXEEXT) on update-game-score.
+        (test-distrib${EXEEXT}): Use $(EXEEXT) on test-distrib.
+        (etags${EXEEXT}, ebrowse${EXEEXT}, ctags${EXEEXT})
+        (profile${EXEEXT}, make-docfile${EXEEXT}, movemail${EXEEXT})
+        (emacsclient${EXEEXT}, hexl${EXEEXT}, update-game-score${EXEEXT}):
+        Add $(NTLIB) to prerequisites.  Use $(EXEEXT).
+        (pop.o): Add pop.h to prerequisites.
+        (emacsclientw${EXEEXT}, ntlib.o): New targets.
+        (emacsclient.res): New target.
+
 2013-05-15  Stefan Monnier  <monnier@iro.umontreal.ca>
 
         * makefile.w32-in ($(DOC)): Use DOC rather than DOC-X.
diff --git a/lib-src/Makefile.in b/lib-src/Makefile.in
index 7069af9767a..e0acea867b7 100644
--- a/lib-src/Makefile.in
+++ b/lib-src/Makefile.in
@@ -113,8 +113,11 @@ MKDIR_P = @MKDIR_P@
 
 # ========================== Lists of Files ===========================
 
+# emacsclientw.exe for MinGW, empty otherwise
+CLIENTW = @CLIENTW@
+
 # Things that a user might actually run, which should be installed in bindir.
-INSTALLABLES = etags${EXEEXT} ctags${EXEEXT} emacsclient${EXEEXT} \
+INSTALLABLES = etags${EXEEXT} ctags${EXEEXT} emacsclient${EXEEXT} $(CLIENTW) \
                ebrowse${EXEEXT}
 
 INSTALLABLE_SCRIPTS = grep-changelog
@@ -163,10 +166,21 @@ LIBS_MAIL=@LIBS_MAIL@
 LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
 ## empty or -lrt or -lposix4 if HAVE_FDATASYNC
 LIB_FDATASYNC = @LIB_FDATASYNC@
+## empty or -lwsock2 for MinGW
+LIB_WSOCK32=@LIB_WSOCK32@
 
 ## Extra libraries to use when linking movemail.
 LIBS_MOVE = $(LIBS_MAIL) $(KRB4LIB) $(DESLIB) $(KRB5LIB) $(CRYPTOLIB) \
-            $(COM_ERRLIB) $(LIBHESIOD) $(LIBRESOLV)
+            $(COM_ERRLIB) $(LIBHESIOD) $(LIBRESOLV) $(LIB_WSOCK32)
+
+## Extra libraries when linking emacsclient
+## (empty or -lcomctl32 for MinGW)
+LIBS_ECLIENT = @LIBS_ECLIENT@
+
+## Extra object files for linking for MinGW
+NTLIB = @NTLIB@
+CLIENTRES = @CLIENTRES@
+WINDRES = @WINDRES@
 
 ## Some systems define this to request special libraries.
 LIBS_SYSTEM = @LIBS_SYSTEM@
@@ -227,7 +241,7 @@ $(DESTDIR)${archlibdir}: all
         umask 022; ${MKDIR_P} $(DESTDIR)${gamedir}; \
         touch $(DESTDIR)${gamedir}/snake-scores; \
         touch $(DESTDIR)${gamedir}/tetris-scores
-        -if chown ${gameuser} $(DESTDIR)${archlibdir}/update-game-score && chmod u+s $(DESTDIR)${archlibdir}/update-game-score; then \
+        -if chown ${gameuser} $(DESTDIR)${archlibdir}/update-game-score${EXEEXT} && chmod u+s $(DESTDIR)${archlibdir}/update-game-score${EXEEXT}; then \
           chown ${gameuser} $(DESTDIR)${gamedir}; \
           chmod u=rwx,g=rwx,o=rx $(DESTDIR)${gamedir}; \
         fi
@@ -292,7 +306,7 @@ TAGS: etags${EXEEXT}
 ## distribute Emacs.  If they were clobbered, all the .elc files were
 ## clobbered too.
 test-distrib${EXEEXT}: ${srcdir}/test-distrib.c
-        $(CC) ${ALL_CFLAGS} -o test-distrib ${srcdir}/test-distrib.c
+        $(CC) ${ALL_CFLAGS} -o test-distrib${EXEEXT} ${srcdir}/test-distrib.c
         ./test-distrib ${srcdir}/testfile
 
 ../lib/libgnu.a: $(config_h)
@@ -302,47 +316,68 @@ regex.o: $(srcdir)/../src/regex.c $(srcdir)/../src/regex.h $(config_h)
         ${CC} -c ${CPP_CFLAGS} -DCONFIG_BROKETS -DINHIBIT_STRING_HEADER \
           ${srcdir}/../src/regex.c
 
-etags${EXEEXT}: ${srcdir}/etags.c regex.o $(config_h)
+etags${EXEEXT}: ${srcdir}/etags.c regex.o $(NTLIB) $(config_h)
         $(CC) ${ALL_CFLAGS} -DEMACS_NAME="\"GNU Emacs\"" \
           -DVERSION="\"${version}\"" ${srcdir}/etags.c \
-          regex.o $(LOADLIBES) -o etags
+          regex.o $(LOADLIBES) $(NTLIB) -o etags${EXEEXT}
 
-ebrowse${EXEEXT}: ${srcdir}/ebrowse.c ${srcdir}/../lib/min-max.h $(config_h)
+ebrowse${EXEEXT}: ${srcdir}/ebrowse.c ${srcdir}/../lib/min-max.h $(NTLIB) \
+                   $(config_h)
         $(CC) ${ALL_CFLAGS} -DVERSION="\"${version}\"" \
-          ${srcdir}/ebrowse.c $(LOADLIBES) -o ebrowse
+          ${srcdir}/ebrowse.c $(LOADLIBES) $(NTLIB) -o ebrowse${EXEEXT}
 
 ## We depend on etags to assure that parallel makes do not write two
 ## etags.o files on top of each other.
 ctags${EXEEXT}: etags${EXEEXT}
         $(CC) ${ALL_CFLAGS} -DCTAGS -DEMACS_NAME="\"GNU Emacs\"" \
           -DVERSION="\"${version}\"" ${srcdir}/etags.c \
-          regex.o $(LOADLIBES) -o ctags
+          regex.o $(LOADLIBES) $(NTLIB) -o ctags${EXEEXT}
 
-profile${EXEEXT}: ${srcdir}/profile.c $(config_h)
+profile${EXEEXT}: ${srcdir}/profile.c $(NTLIB) $(config_h)
         $(CC) ${ALL_CFLAGS} ${srcdir}/profile.c \
-          $(LOADLIBES) $(LIB_CLOCK_GETTIME) -o profile
+          $(LOADLIBES) $(NTLIB) $(LIB_CLOCK_GETTIME) -o profile${EXEEXT}
 
-make-docfile${EXEEXT}: ${srcdir}/make-docfile.c $(config_h)
-        $(CC) ${ALL_CFLAGS} ${srcdir}/make-docfile.c $(LOADLIBES) \
-          -o make-docfile
+make-docfile${EXEEXT}: ${srcdir}/make-docfile.c $(NTLIB) $(config_h)
+        $(CC) ${ALL_CFLAGS} ${srcdir}/make-docfile.c $(LOADLIBES) $(NTLIB) \
+          -o make-docfile${EXEEXT}
 
-movemail${EXEEXT}: ${srcdir}/movemail.c pop.o $(config_h)
+movemail${EXEEXT}: ${srcdir}/movemail.c pop.o $(NTLIB) $(config_h)
         $(CC) ${ALL_CFLAGS} ${MOVE_FLAGS} ${srcdir}/movemail.c pop.o \
-          $(LOADLIBES) $(LIBS_MOVE) -o movemail
+          $(LOADLIBES) $(NTLIB) $(LIBS_MOVE) -o movemail${EXEEXT}
 
-pop.o: ${srcdir}/pop.c ${srcdir}/../lib/min-max.h $(config_h)
+pop.o: ${srcdir}/pop.c ${srcdir}/pop.h ${srcdir}/../lib/min-max.h $(config_h)
         $(CC) -c ${CPP_CFLAGS} ${MOVE_FLAGS} ${srcdir}/pop.c
 
-emacsclient${EXEEXT}: ${srcdir}/emacsclient.c $(config_h)
+emacsclient${EXEEXT}: ${srcdir}/emacsclient.c $(NTLIB) $(config_h)
         $(CC) ${ALL_CFLAGS} ${srcdir}/emacsclient.c \
-           -DVERSION="\"${version}\"" \
-           $(LOADLIBES) $(LIB_FDATASYNC) -o emacsclient
+           -DVERSION="\"${version}\"" $(NTLIB) $(LOADLIBES) $(LIB_FDATASYNC) \
+           $(LIB_WSOCK32) $(LIBS_ECLIENT) -o emacsclient${EXEEXT}
+
+emacsclientw${EXEEXT}: ${srcdir}/emacsclient.c $(NTLIB) $(CLIENTRES) $(config_h)
+        $(CC) ${ALL_CFLAGS} $(CLIENTRES) -mwindows ${srcdir}/emacsclient.c \
+           -DVERSION="\"${version}\"" $(LOADLIBES) $(LIB_FDATASYNC) \
+           $(LIB_WSOCK32) $(LIBS_ECLIENT) -o emacsclientw${EXEEXT}
 
-hexl${EXEEXT}: ${srcdir}/hexl.c $(config_h)
-        $(CC) ${ALL_CFLAGS} ${srcdir}/hexl.c $(LOADLIBES) -o hexl
+NTINC = ${srcdir}/../nt/inc
+NTDEPS = $(NTINC)/ms-w32.h $(NTINC)/sys/stat.h $(NTINC)/inttypes.h \
+ $(NTINC)/stdint.h $(NTINC)/pwd.h $(NTINC)/sys/time.h $(NTINC)/stdbool.h \
+ $(NTINC)/sys/wait.h $(NTINC)/unistd.h $(NTINC)/sys/file.h $(NTINC)/netdb.h
 
-update-game-score${EXEEXT}: ${srcdir}/update-game-score.c $(config_h)
+# The dependency on $(NTDEPS) is a trick intended to cause recompile of
+# programs on MinGW whenever some private header in nt/inc is modified.
+ntlib.o: ${srcdir}/ntlib.c ${srcdir}/ntlib.h $(NTDEPS)
+        $(CC) -c ${CPP_CFLAGS} ${srcdir}/ntlib.c
+
+hexl${EXEEXT}: ${srcdir}/hexl.c $(NTLIB) $(config_h)
+        $(CC) ${ALL_CFLAGS} ${srcdir}/hexl.c $(LOADLIBES) -o hexl${EXEEXT}
+
+update-game-score${EXEEXT}: ${srcdir}/update-game-score.c $(NTLIB) $(config_h)
         $(CC) ${ALL_CFLAGS} -DHAVE_SHARED_GAME_DIR="\"$(gamedir)\"" \
-          ${srcdir}/update-game-score.c $(LOADLIBES) -o update-game-score
+          ${srcdir}/update-game-score.c $(LOADLIBES) $(NTLIB) \
+          -o update-game-score${EXEEXT}
+
+emacsclient.res: $(NTINC)/../emacsclient.rc
+        $(WINDRES) -O coff --include-dir=$(NTINC)/.. -o emacsclient.res \
+          $(NTINC)/../emacsclient.rc
 
 ## Makefile ends here.
diff --git a/lib-src/ntlib.c b/lib-src/ntlib.c
index 849abc2ede5..41b4e3a0cbc 100644
--- a/lib-src/ntlib.c
+++ b/lib-src/ntlib.c
@@ -49,10 +49,11 @@ struct timezone
 /* Emulate sleep...we could have done this with a define, but that
    would necessitate including windows.h in the files that used it.
    This is much easier.  */
-void
-sleep (unsigned long seconds)
+unsigned
+sleep (unsigned seconds)
 {
   Sleep (seconds * 1000);
+  return 0;
 }
 
 /* Get the current working directory.  */
@@ -138,6 +139,12 @@ getuid (void)
 }
 
 unsigned
+geteuid (void)
+{
+  return getuid ();
+}
+
+unsigned
 getgid (void)
 {
   return 0;
@@ -415,4 +422,3 @@ lstat (const char * path, struct stat * buf)
 {
   return stat (path, buf);
 }
-
diff --git a/lib-src/ntlib.h b/lib-src/ntlib.h
index 1b2f57f35e5..3e48d2997e0 100644
--- a/lib-src/ntlib.h
+++ b/lib-src/ntlib.h
@@ -16,7 +16,6 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
-
 #include <pwd.h>
 #include <malloc.h>
 
@@ -29,12 +28,13 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #ifdef sleep
 #undef sleep
 #endif
-void sleep (unsigned long seconds);
+unsigned sleep (unsigned seconds);
 char *getwd (char *dir);
 int getppid (void);
 char * getlogin (void);
 char * cuserid (char * s);
 unsigned getuid (void);
+unsigned geteuid (void);
 unsigned getegid (void);
 unsigned getgid (void);
 int setuid (unsigned uid);
diff --git a/lib-src/update-game-score.c b/lib-src/update-game-score.c
index 29c81a8936c..ec8b4317770 100644
--- a/lib-src/update-game-score.c
+++ b/lib-src/update-game-score.c
@@ -46,6 +46,10 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <sys/stat.h>
 #include <getopt.h>
 
+#ifdef WINDOWSNT
+#include "ntlib.h"
+#endif
+
 #define MAX_ATTEMPTS 5
 #define MAX_SCORES 200
 #define MAX_DATA_LEN 1024