Fixed configure.sh and Makefile

Two things:

* Previous commit had an sh syntax error (when I added "support" for
  OpenBSD)

* OpenBSD's make doesn't have .sinclude

Both of these are fixed in this commit.

src/Makefile.in

@@ -11,7 +11,8 @@
 
 # Read in local settings, such as C compiler settings, or optional inclusions
 # (eg, WITH_LFSR)
-.sinclude "local.mk"
+# .sinclude fails on OpenBSD!
+.include "local.mk"
 
 CFLAGS=		-O2 -Wall -fomit-frame-pointer ${ARCH_C} ${DEBUG}
 LDFLAGS=	${ARCH_LD}
@@ -42,11 +43,6 @@ DEPFILES=	$(makefiles) muforth.h env.h public.h
 
 all : muforth
 
-# Since everyting depends on local.mk, let's make one if it doesn't exist
-# already.
-local.mk :
-	touch ${.TARGET}
-
 ${ALLOBJS} : ${DEPFILES}
 
 # Only make a new public.h - upon which _all_ .o files depend, and so will

src/configure.sh

@@ -152,7 +152,7 @@ EOF
     fi
 fi
 
-if [ "$os" = "FreeBSD" -o "$os" = "NetBSD" -o "$os" = "OpenBSD"]; then
+if [ "$os" = "FreeBSD" -o "$os" = "NetBSD" -o "$os" = "OpenBSD" ]; then
     archobjs="file.o main.o time.o tty.o select.o pty.o usb-netbsd.o usb-freebsd.o"
     if [ "$cpu" = "amd64" ]; then
         Wnarrowing=""
@@ -208,6 +208,11 @@ sed ${sedext} \
   ../scripts/do_sed.sh.in > ../scripts/do_sed.sh
 chmod 755 ../scripts/do_sed.sh
 
+# Touch local.mk, which we'll need regardless of which kind of Make the
+# user has. Also, this allows us to use .include rather than .sinclude,
+# which doesn't exist in OpenBSD.
+touch local.mk
+
 # Figure out which version of make we're using (most likely GNU or BSD) and
 # set up an appropriate Makefile.