From maintainer:

The way the hevea port is installed now, if it is
installed as a package, then chances are hevea.sty
will not be visible to latex.  What I have done is -
instead of having the port copy hevea.sty to a place
where latex can find it, I give instructions as a
message for the user to put it there.

PR:		16149
Submitted by:	maintainer

textproc/hevea/Makefile

@@ -1,6 +1,6 @@
 # New ports collection makefile for:	hevea
 # Version required:	1.0.4
-# Date created:		Novemeber 28 1999
+# Date created:		November 28 1999
 # Whom:			Stephen Montgomery-Smith <stephen@math.missouri.edu>
 #
 # $FreeBSD$
@@ -20,13 +20,6 @@ TEXHASH=		${PREFIX}/bin/texhash
 post-install:
 	strip ${PREFIX}/bin/hevea
 	strip ${PREFIX}/bin/hacha
-# This is a hack to get hevea.sty put in a place where latex
-# will find it.  If you have a better way to do this, please
-# tell me about it.
-	${MKDIR} ${TEX_DIR}/hevea
-	${CP} ${PREFIX}/lib/hevea/hevea.sty ${TEX_DIR}/hevea/hevea.sty
-.if exists(${TEXHASH})
-	${TEXHASH}
-.endif
+	${CAT} ${MASTERDIR}/pkg/MESSAGE
 
 .include <bsd.port.mk>

textproc/hevea/pkg-message

@@ -0,0 +1,9 @@
+==============================================================
+You may like to put the file hevea.sty in a place where latex
+can find it.  For example, if you are using teTeX from the
+ports, the following commands will do the job:
+
+mkdir -p /usr/local/share/texmf/tex/latex/hevea
+cp /usr/local/lib/hevea/hevea.sty /usr/local/share/texmf/tex/latex/hevea
+texhash
+==============================================================

textproc/hevea/pkg-plist

@@ -32,9 +32,7 @@ lib/hevea/text/hevea.hva
 lib/hevea/text/report.hva
 lib/hevea/text/seminar.hva
 lib/hevea/text/symb.hva
-share/texmf/tex/latex/hevea/hevea.sty
 @dirrm lib/hevea/html
 @dirrm lib/hevea/info
 @dirrm lib/hevea/text
 @dirrm lib/hevea
-@dirrm share/texmf/tex/latex/hevea