diff --git a/math/gmp/Makefile b/math/gmp/Makefile
index 0130a0973503..2f759a714b0e 100644
--- a/math/gmp/Makefile
+++ b/math/gmp/Makefile
@@ -1,56 +1,58 @@
 PORTNAME=	gmp
 PORTVERSION=	6.3.0
 CATEGORIES=	math devel
 MASTER_SITES=	GNU
 
 MAINTAINER=	ale@FreeBSD.org
 COMMENT=	Free library for arbitrary precision arithmetic
 WWW=		https://gmplib.org/
 
 LICENSE=	LGPL3
 
-USES=		cpe libtool makeinfo tar:xz pathfix
-
+USES=		cpe libtool tar:xz pathfix
 CPE_VENDOR=	gmplib
-
-OPTIONS_DEFINE=	CPU_OPTS
-CPU_OPTS_DESC=	Enable assembly optimizations for your CPU
+USE_LDCONFIG=	yes
 
 HAS_CONFIGURE=	yes
-CONFIGURE_ENV=	MAKEINFO="${MAKEINFO} --no-split"
 CONFIGURE_ARGS=	--prefix=${PREFIX} \
-		--infodir=${PREFIX}/${INFO_PATH} \
-		--mandir=${PREFIX}/man \
 		--enable-cxx
 
-USE_LDCONFIG=	yes
-
-INFO=		gmp
-
 INSTALL_TARGET=	install-strip
 TEST_TARGET=	check
 
+OPTIONS_DEFINE=	CPU_OPTS INFO
+OPTIONS_DEFAULT=	INFO
+
+CPU_OPTS_DESC=	Enable assembly optimizations for your CPU
+
+INFO_USES=	makeinfo
+INFO_CONFIGURE_ENV=	MAKEINFO="${MAKEINFO} --no-split"
+INFO_INFO=		gmp
+
 .include <bsd.port.pre.mk>
 
 .if ${ARCH:Mmips*}
 MAKE_JOBS_UNSAFE=yes
 .endif
 
 .if ! ${PORT_OPTIONS:MCPU_OPTS}
 CONFIGURE_ARGS+=--build=${CONFIGURE_TARGET}
 .elif ${ARCH:S/64//} != ${ARCH}
 .if ${ARCH:Mpowerpc64*}
 CONFIGURE_ENV+=	ABI="mode64"
 .elif ${ARCH:Mriscv64*}
 CONFIGURE_ENV+=	ABI="standard"
 .else
 CONFIGURE_ENV+=	ABI="64"
 .endif
 .else
 CONFIGURE_ENV+=	ABI="32"
 .endif
 
-post-extract:
+post-extract-INFO-on:
 	@${RM} ${WRKSRC}/doc/gmp.info*
 
+post-patch-INFO-off:
+	${REINPLACE_CMD} -e '/^SUBDIRS/ s|doc||' ${WRKSRC}/Makefile.in
+
 .include <bsd.port.post.mk>