diff --git a/math/dcdflib/Makefile b/math/dcdflib/Makefile
index 95805a50f248..415cca96b1fa 100644
--- a/math/dcdflib/Makefile
+++ b/math/dcdflib/Makefile
@@ -11,7 +11,9 @@ MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Library of C Routines for Cumulative Distribution Functions
 
 WRKSRC=		${WRKDIR}/dcdflib.c/src
+USES=		uidfix
 USE_LDCONFIG=	yes
+MAKEFILE=	${FILESDIR}/Makefile.lib
 DOCSDIR=	${PREFIX}/share/doc/${PORTNAME:S/.c//}
 OPTIONS_DEFINE= DOCS
 
@@ -21,9 +23,6 @@ PLIST_SUB+=	PROFILE="@comment "
 PLIST_SUB+=	PROFILE=""
 .endif
 
-post-extract:
-	@${CP} ${FILESDIR}/Makefile.lib ${WRKSRC}/Makefile
-
 post-install:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	@${INSTALL_DATA} ${WRKSRC}/../doc/dcdflib.chs ${STAGEDIR}${DOCSDIR}
diff --git a/math/dcdflib/files/Makefile.lib b/math/dcdflib/files/Makefile.lib
index 0c25a8b5b423..895578c8cbf4 100644
--- a/math/dcdflib/files/Makefile.lib
+++ b/math/dcdflib/files/Makefile.lib
@@ -10,7 +10,7 @@ SRCS=		dcdflib.c ipmpar.c
 CFLAGS?=	-O2
 
 beforeinstall:
-	${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/../doc/dcdflib.h \
-		${PREFIX}/include
+	${BSD_INSTALL_DATA} ${.CURDIR}/../doc/dcdflib.h \
+		${DESTDIR}${PREFIX}/include
 
 .include <bsd.lib.mk>
diff --git a/math/dcdflib/files/patch-Makefile b/math/dcdflib/files/patch-Makefile
deleted file mode 100644
index ee928e158b6d..000000000000
--- a/math/dcdflib/files/patch-Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
---- Makefile.orig	2014-08-14 18:12:38.651021563 +0800
-+++ Makefile	2014-08-14 18:12:47.362022248 +0800
-@@ -11,6 +11,6 @@ CFLAGS?=	-O2
- 
- beforeinstall:
- 	${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 ${.CURDIR}/../doc/dcdflib.h \
--		${PREFIX}/include
-+		$(DESTDIR)${PREFIX}/include
- 
- .include <bsd.lib.mk>