diff --git a/Makefile.in b/Makefile.in
index 6e4c96ab3..90b9d4aaf 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -16,9 +16,6 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.181 2007/05/24 04:07:11 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
 # This version string is only used in the version message printed
@@ -51,6 +48,9 @@ INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
 LEX = @LEX@
 YACC = @YACC@
+MAN = @MAN@
+PS2PDF = @PS2PDF@
+GIT = @GIT@
 
 CPPFLAGS = @ident_support@ @DEFS@ -I. -I$(srcdir) @CPPFLAGS@
 CXXFLAGS = -Wall @CXXFLAGS@
@@ -65,7 +65,7 @@ all: dep version.h ivl@EXEEXT@
 
 # In the windows world, the installer will need a dosify program to
 # dosify text files.
-ifeq (@MING32@,yes)
+ifeq (@MINGW32@,yes)
 all: dep dosify.exe
 dosify.exe: dosify.c
 	$(CC) -o dosify.exe dosify.c
@@ -177,19 +177,22 @@ lexor_keyword.cc: lexor_keyword.gperf
 	gperf -o -i 7 -C -k 1-4,$$ -L ANSI-C -H keyword_hash -N check_identifier -t $(srcdir)/lexor_keyword.gperf > lexor_keyword.cc || (rm -f lexor_keyword.cc ; false)
 
 iverilog-vpi.ps: $(srcdir)/iverilog-vpi.man
-	man -t $(srcdir)/iverilog-vpi.man > iverilog-vpi.ps
+	$(MAN) -t $(srcdir)/iverilog-vpi.man > iverilog-vpi.ps
 
 iverilog-vpi.pdf: iverilog-vpi.ps
-	ps2pdf iverilog-vpi.ps iverilog-vpi.pdf
+	$(PS2PDF) iverilog-vpi.ps iverilog-vpi.pdf
 
 # For VERSION_TAG in driver/main.c, first try git-describe, then look for a
 # version.h file in the source tree (included in snapshots and releases), and
 # finally use nothing.
 .PHONY: version.h
 version.h:
+ifeq ($(GIT),none)
+	@echo '#define VERSION_TAG ""' > $@;
+else
 	@if test -d $(srcdir)/.git; then \
 	    echo "Using git-describe for VERSION_TAG"; \
-	    tmp=`git --git-dir $(srcdir)/.git describe \
+	    tmp=`$(GIT) --git-dir $(srcdir)/.git describe \
 		   | sed -e 's;\(.*\);#define VERSION_TAG "\1";'`; \
 	    echo "$$tmp" | diff - $@ > /dev/null 2>&1 || echo "$$tmp" > $@ || exit 1; \
 	elif test -r $(srcdir)/$@; then \
@@ -199,11 +202,20 @@ version.h:
 	    echo "Using empty VERSION_TAG"; \
 	    echo '#define VERSION_TAG ""' > $@; \
 	fi
+endif
 
-ifeq (@MING32@,yes)
+ifeq (@MINGW32@,yes)
+ifeq ($(MAN),none)
+INSTALL_DOC = $(mandir)/man1/iverilog-vpi.1
+else
+ifeq ($(PS2PDF),none)
+INSTALL_DOC = $(mandir)/man1/iverilog-vpi.1
+else
 INSTALL_DOC = $(prefix)/iverilog-vpi.pdf $(mandir)/man1/iverilog-vpi.1
-INSTALL_DOCDIR = $(mandir)/man1
 all: dep iverilog-vpi.pdf
+endif
+endif
+INSTALL_DOCDIR = $(mandir)/man1
 else
 INSTALL_DOC = $(mandir)/man1/iverilog-vpi.1
 INSTALL_DOCDIR = $(mandir)/man1
diff --git a/cadpli/Makefile.in b/cadpli/Makefile.in
index e98089888..9d8885847 100644
--- a/cadpli/Makefile.in
+++ b/cadpli/Makefile.in
@@ -16,12 +16,9 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.13 2007/02/06 05:07:31 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
-VERSION = 0.0
+VERSION = 0.9.devel
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -63,7 +60,7 @@ dep:
 O = cadpli.o
 
 SYSTEM_VPI_LDFLAGS = -L../vvp -lvpi
-ifeq (@MING32@,yes)
+ifeq (@MINGW32@,yes)
     SYSTEM_VPI_LDFLAGS += @EXTRALIBS@
 endif
 
diff --git a/configure.in b/configure.in
index 4f4220c69..46529fbe9 100644
--- a/configure.in
+++ b/configure.in
@@ -9,6 +9,9 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_CHECK_TOOL(STRIP, strip, true)
 AC_CHECK_PROGS(XGPERF,gperf,none)
+AC_CHECK_PROGS(MAN,man,none)
+AC_CHECK_PROGS(PS2PDF,ps2pdf,none)
+AC_CHECK_PROGS(GIT,git,none)
 if test "$XGPERF" = "none"
 then
 	echo ""
diff --git a/driver-vpi/Makefile.in b/driver-vpi/Makefile.in
index f9cd6def6..a33053ae1 100644
--- a/driver-vpi/Makefile.in
+++ b/driver-vpi/Makefile.in
@@ -16,12 +16,9 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.7.2.1 2006/10/04 17:08:59 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
-VERSION = 0.8.3
+VERSION = 0.9.devel
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -48,6 +45,8 @@ LDFLAGS = @LDFLAGS@
 
 all: iverilog-vpi@EXEEXT@
 
+check: all
+
 clean:
 	rm -f *.o config.h
 	rm -f iverilog-vpi@EXEEXT@
diff --git a/driver/Makefile.in b/driver/Makefile.in
index 9968923e9..254b65dfd 100644
--- a/driver/Makefile.in
+++ b/driver/Makefile.in
@@ -16,9 +16,6 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.26 2007/02/06 05:07:31 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
 VERSION = 0.9.devel
@@ -41,6 +38,8 @@ CC = @CC@
 INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
+MAN = @MAN@
+PS2PDF = @PS2PDF@
 
 CPPFLAGS = @ident_support@ -I. -I.. -I$(srcdir)/.. -I$(srcdir) -DVERSION='"$(VERSION)"' @CPPFLAGS@ @DEFS@
 CFLAGS = -Wall @CFLAGS@
@@ -76,15 +75,23 @@ cflexor.o: cflexor.c cfparse.h cfparse_misc.h globals.h
 cfparse.o: cfparse.c globals.h cfparse_misc.h
 
 iverilog.ps: $(srcdir)/iverilog.man
-	man -t $(srcdir)/iverilog.man > iverilog.ps
+	$(MAN) -t $(srcdir)/iverilog.man > iverilog.ps
 
 iverilog.pdf: iverilog.ps
-	ps2pdf iverilog.ps iverilog.pdf
+	$(PS2PDF) iverilog.ps iverilog.pdf
 
-ifeq (@MING32@,yes)
+ifeq (@MINGW32@,yes)
+ifeq ($(MAN),none)
+INSTALL_DOC = $(mandir)/man1/iverilog.1
+else
+ifeq ($(PS2PDF),none)
+INSTALL_DOC = $(mandir)/man1/iverilog.1
+else
 INSTALL_DOC = $(prefix)/iverilog.pdf $(mandir)/man1/iverilog.1
-INSTALL_DOCDIR = $(mandir)/man1
 all: iverilog.pdf
+endif
+endif
+INSTALL_DOCDIR = $(mandir)/man1
 else
 INSTALL_DOC = $(mandir)/man1/iverilog.1
 INSTALL_DOCDIR = $(mandir)/man1
diff --git a/driver/main.c b/driver/main.c
index a9f5236e4..55fac84b3 100644
--- a/driver/main.c
+++ b/driver/main.c
@@ -327,6 +327,9 @@ static int t_default(char*cmd, unsigned ncmd)
 	    remove(defines_path);
 	    remove(compiled_defines_path);
       }
+#ifdef __MINGW32__  /* MinGW just returns the exit status, so return it! */
+      return rc;
+#else
 
       if (rc != 0) {
 	    if (rc == 127) {
@@ -342,6 +345,7 @@ static int t_default(char*cmd, unsigned ncmd)
       }
 
       return 0;
+#endif
 }
 
 
diff --git a/ivlpp/lexor.lex b/ivlpp/lexor.lex
index 08bdc3f66..2997e371c 100644
--- a/ivlpp/lexor.lex
+++ b/ivlpp/lexor.lex
@@ -1616,7 +1616,11 @@ static int load_next_input()
 static void do_dump_precompiled_defines(FILE* out, struct define_t* table)
 {
     if (!table->keyword)
+#ifdef __MINGW32__  /* MinGW does not know about z. */
+        fprintf(out, "%s:%d:%d:%s\n", table->name, table->argc, strlen(table->value), table->value);
+#else
         fprintf(out, "%s:%d:%zd:%s\n", table->name, table->argc, strlen(table->value), table->value);
+#endif
 
     if (table->left)
         do_dump_precompiled_defines(out, table->left);
diff --git a/tgt-null/Makefile.in b/tgt-null/Makefile.in
index cba6d9c16..204e6a00c 100644
--- a/tgt-null/Makefile.in
+++ b/tgt-null/Makefile.in
@@ -16,12 +16,9 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.11 2004/02/10 19:25:01 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
-VERSION = 0.0
+VERSION = 0.9.devel
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -44,6 +41,8 @@ LDFLAGS = @LDFLAGS@
 
 all: dep null.tgt
 
+check: all
+
 dep:
 	mkdir dep
 
diff --git a/tgt-stub/Makefile.in b/tgt-stub/Makefile.in
index b93a8452b..fd726431d 100644
--- a/tgt-stub/Makefile.in
+++ b/tgt-stub/Makefile.in
@@ -16,12 +16,9 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.20 2007/02/06 05:07:32 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
-VERSION = 0.0
+VERSION = 0.9.devel
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -44,6 +41,8 @@ LDFLAGS = @LDFLAGS@
 
 all: dep stub.tgt
 
+check: all
+
 dep:
 	mkdir dep
 
diff --git a/tgt-vvp/draw_vpi.c b/tgt-vvp/draw_vpi.c
index 43821385f..89c6f3771 100644
--- a/tgt-vvp/draw_vpi.c
+++ b/tgt-vvp/draw_vpi.c
@@ -25,6 +25,10 @@
 # include  <stdlib.h>
 # include  <assert.h>
 
+#ifdef __MINGW32__  /* MinGW has inconsistent %p output. */
+#define snprintf _snprintf
+#endif
+
 static const char* magic_sfuncs[] = {
       "$time",
       "$stime",
diff --git a/tgt-vvp/modpath.c b/tgt-vvp/modpath.c
index 07b37df22..031257f70 100644
--- a/tgt-vvp/modpath.c
+++ b/tgt-vvp/modpath.c
@@ -22,6 +22,10 @@
 # include  <stdlib.h>
 # include  <assert.h>
 
+#ifdef __MINGW32__  /* MinGW has inconsistent %p output. */
+#define snprintf _snprintf
+#endif
+
 static ivl_signal_t find_path_source_port(ivl_delaypath_t path)
 {
       int idx;
diff --git a/tgt-vvp/vvp_scope.c b/tgt-vvp/vvp_scope.c
index 05944f639..1d361934d 100644
--- a/tgt-vvp/vvp_scope.c
+++ b/tgt-vvp/vvp_scope.c
@@ -27,6 +27,10 @@
 # include  <inttypes.h>
 # include  <assert.h>
 
+#ifdef __MINGW32__  /* MinGW has inconsistent %p output. */
+#define snprintf _snprintf
+#endif
+
 struct vvp_nexus_data {
 	/* draw_net_input uses this */
       const char*net_input;
@@ -1759,7 +1763,11 @@ static void draw_lpm_add(ivl_lpm_t net)
 		  type = "pow.s";
 		  if (width > 8*sizeof(long)) {
 			fprintf(stderr, "%s:%u: sorry (vvp-tgt): Signed power "
+#ifdef __MINGW32__  /* MinGW does not know about z. */
+				"result must be no more than %u bits.\n",
+#else
 				"result must be no more than %zu bits.\n",
+#endif
 				ivl_lpm_file(net), ivl_lpm_lineno(net),
 				8*sizeof(long));
 			exit(1);
diff --git a/vpi/Makefile.in b/vpi/Makefile.in
index ed719718b..4b8bca964 100644
--- a/vpi/Makefile.in
+++ b/vpi/Makefile.in
@@ -16,12 +16,9 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.61 2007/02/06 05:07:32 steve Exp $"
-#
-#
 SHELL = /bin/sh
 
-VERSION = 0.0
+VERSION = 0.9.devel
 
 prefix = @prefix@
 exec_prefix = @exec_prefix@
@@ -48,6 +45,8 @@ LDFLAGS = @LDFLAGS@
 
 all: dep system.vpi va_math.vpi $(ALL32)
 
+check: all
+
 dep:
 	mkdir dep
 
@@ -75,7 +74,7 @@ V = va_math.o
 LIBS = @LIBS@
 SYSTEM_VPI_LDFLAGS = $(LIBS)
 VA_MATH_LDFLAGS = 
-ifeq (@MING32@,yes)
+ifeq (@MINGW32@,yes)
     SYSTEM_VPI_LDFLAGS += @EXTRALIBS@
     VA_MATH_LDFLAGS += @EXTRALIBS@
 endif
diff --git a/vvp/Makefile.in b/vvp/Makefile.in
index 65cab97f4..fdc199431 100644
--- a/vvp/Makefile.in
+++ b/vvp/Makefile.in
@@ -43,6 +43,8 @@ INSTALL_DATA = @INSTALL_DATA@
 RANLIB = @RANLIB@
 LEX = @LEX@
 YACC = @YACC@
+MAN = @MAN@
+PS2PDF = @PS2PDF@
 
 CPPFLAGS = @ident_support@ -I. -I.. -I $(srcdir) -I$(srcdir)/.. @CPPFLAGS@ @DEFS@
 CXXFLAGS = -Wall @CXXFLAGS@
@@ -133,12 +135,20 @@ lexor.cc: $(srcdir)/lexor.lex
 	$(LEX) -s -olexor.cc $(srcdir)/lexor.lex
 
 vvp.pdf: $(srcdir)/vvp.man
-	man -t $(srcdir)/vvp.man | ps2pdf - vvp.pdf
+	$(MAN) -t $(srcdir)/vvp.man | $(PS2PDF) - vvp.pdf
 
-ifeq (@MING32@,yes)
+ifeq (@MINGW32@,yes)
+ifeq ($(MAN),none)
+INSTALL_DOC = $(mandir)/man1/vvp.1
+else
+ifeq ($(PS2PDF),none)
+INSTALL_DOC = $(mandir)/man1/vvp.1
+else
 INSTALL_DOC = $(prefix)/vvp.pdf $(mandir)/man1/vvp.1
-INSTALL_DOCDIR = $(mandir)/man1
 all: vvp.pdf
+endif
+endif
+INSTALL_DOCDIR = $(mandir)/man1
 else
 INSTALL_DOC = $(mandir)/man1/vvp.1
 INSTALL_DOCDIR = $(mandir)/man1
diff --git a/vvp/configure.in b/vvp/configure.in
index 6d11b2a99..a9ae1799b 100644
--- a/vvp/configure.in
+++ b/vvp/configure.in
@@ -5,6 +5,8 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_RANLIB
 AC_CHECK_TOOL(STRIP, strip, true)
+AC_CHECK_PROGS(MAN,man,none)
+AC_CHECK_PROGS(PS2PDF,ps2pdf,none)
 
 AC_EXEEXT
 AC_SUBST(EXEEXT)
diff --git a/vvp/udp.cc b/vvp/udp.cc
index da041c183..4bee78c3d 100644
--- a/vvp/udp.cc
+++ b/vvp/udp.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005-2007 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2005-2008 Stephen Williams (steve@icarus.com)
  *
  * (This is a rewrite of code that was ...
  * Copyright (c) 2001 Stephan Boettcher <stephan@nevis.columbia.edu>)
@@ -19,9 +19,6 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
-#ifdef HAVE_CVS_IDENT
-#ident "$Id: udp.cc,v 1.35 2007/03/04 06:26:33 steve Exp $"
-#endif
 
 #include "udp.h"
 #include "schedule.h"
@@ -228,7 +225,11 @@ void vvp_udp_comb_s::compile_table(char**tab)
 	    cur.maskx = 0;
 	    if (port_count() > 8*sizeof(cur.mask0)) {
 		  fprintf(stderr, "internal error: primitive port count=%u "
+#ifdef __MINGW32__  /* MinGW does not know about z. */
+			  " > %u\n", port_count(), sizeof(cur.mask0));
+#else
 			  " > %zu\n", port_count(), sizeof(cur.mask0));
+#endif
 		  assert(port_count() <= 8*sizeof(cur.mask0));
 	    }
 	    for (unsigned pp = 0 ;  pp < port_count() ;  pp += 1) {
@@ -954,4 +955,3 @@ void compile_udp_functor(char*label, char*type,
       wide_inputs_connect(core, argc, argv);
       free(argv);
 }
-
diff --git a/vvp/vpi_mcd.cc b/vvp/vpi_mcd.cc
index b72406630..f81e1d381 100644
--- a/vvp/vpi_mcd.cc
+++ b/vvp/vpi_mcd.cc
@@ -152,7 +152,15 @@ vpi_mcd_vprintf(PLI_UINT32 mcd, const char*fmt, va_list ap)
 		    mcd, fmt);
       }
 
+#ifdef __MINGW32__
+	/*
+	 * The MinGW runtime (version 3.14) fixes some things, but breaks
+	 * %f for us, so we have to us the underlying version.
+	 */
+      rc = _vsnprintf(buffer, sizeof buffer, fmt, ap);
+#else
       rc = vsnprintf(buffer, sizeof buffer, fmt, ap);
+#endif
 
       for(int i = 0; i < 31; i++) {
 	    if((mcd>>i) & 1) {