Update configure and Makefiles for cross compiling.

There are still a couple issues with cross compiling, but this patch
addresses most of the issues.

Makefile.in

@@ -70,6 +70,7 @@ dllib=@DLLIB@
 CC = @CC@
 HOSTCC = @CC@
 CXX = @CXX@
+DLLTOOL = @DLLTOOL@
 INSTALL = @INSTALL@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
@@ -120,7 +121,7 @@ all: dep config.h _pli_types.h version_tag.h ivl@EXEEXT@ version.exe iverilog-vp
 ifeq (@MINGW32@,yes)
 all: dosify.exe
 dosify.exe: $(srcdir)/dosify.c
-	$(CC) -o dosify.exe $(srcdir)/dosify.c
+	$(HOSTCC) -o dosify.exe $(srcdir)/dosify.c
 endif
 
 # This rule rules the compiler in the trivial hello.vl program to make
@@ -203,7 +204,7 @@ ifeq (@WIN32@,yes)
 # that really exports the things that the import library imports.
 ivl@EXEEXT@: $O $(srcdir)/ivl.def
 	$(CXX) -o ivl@EXEEXT@ $O $(dllib) @EXTRALIBS@
-	dlltool --dllname ivl@EXEEXT@ --def $(srcdir)/ivl.def \
+	$(DLLTOOL) --dllname ivl@EXEEXT@ --def $(srcdir)/ivl.def \
 		--output-lib libivl.a --output-exp ivl.exp
 	$(CXX) $(LDFLAGS) -o ivl@EXEEXT@ ivl.exp $O $(dllib) @EXTRALIBS@
 else

configure.in

@@ -21,7 +21,11 @@ AC_PREREQ([2.60])
 AC_PROG_CC_C99
 AC_PROG_CXX
 AC_PROG_RANLIB
+AC_CHECK_TOOL(LD, ld, false)
+AC_CHECK_TOOL(AR, ar, false)
+AC_CHECK_TOOL(DLLTOOL, dlltool, false)
 AC_CHECK_TOOL(STRIP, strip, true)
+AC_CHECK_TOOL(WINDRES,windres,false)
 AC_CHECK_PROGS(XGPERF,gperf,none)
 AC_CHECK_PROGS(MAN,man,none)
 AC_CHECK_PROGS(PS2PDF,ps2pdf,none)

driver-vpi/Makefile.in

@@ -37,6 +37,7 @@ mandir = @mandir@
 dllib=@DLLIB@
 
 CC = @CC@
+WINDRES = @WINDRES@
 INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
@@ -88,7 +89,7 @@ res.rc: $(srcdir)/res.rc.in ../version.exe
 	$(srcdir)/res.rc.in > $@
 
 res.o: res.rc
-	windres -i res.rc -o res.o
+	$(WINDRES) -i res.rc -o res.o
 #
 
 install: all installdirs $(bindir)/iverilog-vpi$(suffix)@EXEEXT@

libveriuser/Makefile.in

@@ -31,6 +31,9 @@ libdir = @libdir@
 includedir = $(prefix)/include
 
 CC = @CC@
+RANLIB = @RANLIB@
+AR = @AR@
+LD = @LD@
 INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
@@ -44,7 +47,6 @@ endif
 CPPFLAGS = $(INCLUDE_PATH) @CPPFLAGS@ @DEFS@ @PICFLAG@
 CFLAGS = @WARNING_FLAGS@ @CFLAGS@
 LDFLAGS = @LDFLAGS@
-RANLIB = @RANLIB@
 
 A = a_close.o a_compare_handles.o a_configure.o a_fetch_argc.o \
     a_fetch_argv.o a_fetch_dir.o a_fetch_fullname.o a_fetch_location.o \
@@ -90,7 +92,7 @@ libveriuser.o: $O
 
 libveriuser.a: libveriuser.o
 	rm -f $@
-	ar cvq $@ libveriuser.o
+	$(AR) cvq $@ libveriuser.o
 	$(RANLIB) $@
 
 %.o: %.c config.h

vvp/Makefile.in

@@ -35,11 +35,13 @@ includedir = @includedir@
 CC = @CC@
 HOSTCC = @CC@
 CXX = @CXX@
+DLLTOOL = @DLLTOOL@
+AR = @AR@
+RANLIB = @RANLIB@
 INSTALL = @INSTALL@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
-RANLIB = @RANLIB@
 LEX = @LEX@
 YACC = @YACC@
 MAN = @MAN@
@@ -118,7 +120,7 @@ ifeq (@WIN32@,yes)
 # executable to build the library.
 vvp@EXEEXT@ libvpi.a: $O $(srcdir)/vvp.def
 	$(CXX) -o vvp$(suffix)@EXEEXT@ $(LDFLAGS) $O $(dllib) $(LIBS)
-	dlltool --dllname vvp$(suffix)@EXEEXT@ --def $(srcdir)/vvp.def \
+	$(DLLTOOL) --dllname vvp$(suffix)@EXEEXT@ --def $(srcdir)/vvp.def \
 		--output-lib libvpi.a --output-exp vvp.exp
 	rm -f vvp$(suffix)@EXEEXT@
 	$(CXX) $(LDFLAGS) -o vvp@EXEEXT@ vvp.exp $(LDFLAGS) $O $(dllib) $(LIBS)
@@ -126,7 +128,7 @@ else
 libvpi.a: libvpi.c
 	$(CC) $(CFLAGS) -c $<
 	rm -f libvpi.a
-	ar cqv libvpi.a libvpi.o
+	$(AR) cqv libvpi.a libvpi.o
 	$(RANLIB) libvpi.a
 
 vvp@EXEEXT@: $O
@@ -142,9 +144,9 @@ endif
 	mv $*.d dep/$*.d
 
 tables.cc: $(srcdir)/draw_tt.c
-	$(HOSTCC) @WARNING_FLAGS@ -o draw_tt $(srcdir)/draw_tt.c
-	./draw_tt > tables.cc
-	rm draw_tt@EXEEXT@
+	$(HOSTCC) @WARNING_FLAGS@ -o draw_tt.exe $(srcdir)/draw_tt.c
+	./draw_tt.exe > tables.cc
+	rm draw_tt.exe
 
 lexor.o: lexor.cc parse.h