add a pth FLAVOR to the MySQL port which makes it use the GNU Portable

Threads port for the threads library, this is primarily intended for users
of the SPARC architecture though it will work on all other archs too.

databases/mysql/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.25 2000/07/04 02:49:34 krw Exp $
+# $OpenBSD: Makefile,v 1.26 2000/07/28 22:04:25 brad Exp $
 # $FreeBSD: Makefile,v 1.44 1999/03/04 21:27:58 dirk Exp $
 
 #BROKEN=	installs files automatically in /etc
@@ -24,10 +24,6 @@ PERMIT_PACKAGE_FTP=	Yes
 PERMIT_DISTFILES_CDROM=	Yes
 PERMIT_DISTFILES_FTP=	Yes
 
-.if ${MACHINE_ARCH} == "sparc"
-BROKEN=		"pthreads are currently not working on the SPARC architecture"
-.endif
-
 CONFIGURE_STYLE= gnu
 CONFIGURE_ARGS+= ${CONFIGURE_SHARED}
 CONFIGURE_ARGS+= --enable-static \
@@ -38,8 +34,21 @@ CONFIGURE_ARGS+= --enable-static \
 		 --without-bench \
 		 --without-mit-threads \
 		 --with-unix-socket-path="/var/mysql/mysql.sock"
+
+FLAVORS=	pth
+FLAVOR?=
+
+.if ${FLAVOR:L} == "pth"
+LIB_DEPENDS=	pthread.13::devel/pth
+CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
+		LDFLAGS="-L${LOCALBASE}/lib"
+.else
+. if ${MACHINE_ARCH} == "sparc"
+BROKEN=		"pthreads are currently not working on the SPARC architecture"
+. endif
 CONFIGURE_ENV=	CFLAGS="${CFLAGS} -pthread" \
 		CXXFLAGS="${CXXFLAGS} -pthread"
+.endif
 
 pre-build:      
 	@echo ""