- math/gnuplot/Makefile fails to find emacs or xemacs
	  ( .include <bsd.port.per.mk> is in a wrong place)
	- the path for elisps is wrong

Fix: 

-.if exists(${PREFIX}/bin/emacs) || exists(${PREFIX}/bin/xemacs) || exists(/usr/local/bin/emacs)
+.include <bsd.port.pre.mk>
+
+.if exists(${PREFIX}/bin/emacs) || exists(${PREFIX}/bin/xemacs)
 USE_EMACS=     yes
 EMACS_PORT_NAME=       emacs21
 EMACS_NO_BUILD_DEPENDS=        yes
@@ -41,8 +43,6 @@
 CONFIGURE_ARGS+=       --without-lisp-files
 .endif

-.include <bsd.port.pre.mk>
-
 .if !defined(WITHOUT_READLINE)
 .if ${OSVERSION} < 500018
 LIB_DEPENDS+=          readline.5:${PORTSDIR}/devel/readline
@@ -106,7 +106,7 @@
 post-install:
        ${INSTALL_SCRIPT} ${WRKSRC}/src/lasergnu ${PREFIX}/bin
 .if exists(${PREFIX}/bin/emacs) || exists(${PREFIX}/bin/xemacs)
-       ${INSTALL_DATA} ${WRKSRC}/lisp/gnuplot*.el ${EMACS_SITE_LISPDIR}
+       ${INSTALL_DATA} ${WRKSRC}/lisp/gnuplot*.el ${PREFIX}${EMACS_SITE_LISPDIR}
 .endif
 .if !defined(NOPORTDOCS)
        @${MKDIR} ${EXAMPLESDIR}--qMg83emKMXNiqvDkwFQWk34gcLyAxsXiMHdwWN1UUrWkTwJC
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--- Makefile.orig       Thu Dec 21 18:47:22 2006
+++ Makefile    Thu Dec 21 19:01:28 2006
@@ -30,7 +30,9 @@
 MAN1=          gnuplot.1 lasergnu.1
 INFO=          gnuplot
How-To-Repeat: 	Everytime