diff --git a/audio/ccaudio2/Makefile b/audio/ccaudio2/Makefile
index 8af68f94deb0..c508927b411c 100644
--- a/audio/ccaudio2/Makefile
+++ b/audio/ccaudio2/Makefile
@@ -17,6 +17,7 @@ LIB_DEPENDS=	ccgnu2:${PORTSDIR}/devel/commoncpp \
 
 CONFLICTS=	ccaudio-[0-9]*
 
+USE_PKGCONFIG=	build
 USE_GNOME=	gnomehack
 USE_CMAKE=	yes
 CMAKE_OUTSOURCE=yes
diff --git a/audio/swhplugins/Makefile b/audio/swhplugins/Makefile
index a4dccee2d6b8..0b85ab619817 100644
--- a/audio/swhplugins/Makefile
+++ b/audio/swhplugins/Makefile
@@ -22,6 +22,7 @@ LIB_DEPENDS=	fftw3f:${PORTSDIR}/math/fftw3-float
 # includes assembler code
 ONLY_FOR_ARCHS=	i386 amd64
 
+USE_PKGCONFIG=	build
 USE_AUTOTOOLS=	libtool
 USE_GMAKE=	yes
 GNU_CONFIGURE=	yes
diff --git a/devel/lua-sysctl/Makefile b/devel/lua-sysctl/Makefile
index f2248735edc3..e13035599635 100644
--- a/devel/lua-sysctl/Makefile
+++ b/devel/lua-sysctl/Makefile
@@ -8,6 +8,7 @@ MASTER_SITES=	http://files.kaworu.ch/
 MAINTAINER=	garga@FreeBSD.org
 COMMENT=	A small sysctl(3) interface for lua
 
+USE_PKGCONFIG=	build
 USE_LUA=	yes
 PLIST_FILES=	%%LUA_MODSHAREDIR%%/sysctl.lua \
 		%%LUA_MODLIBDIR%%/sysctl/core.so
diff --git a/www/volta/Makefile b/www/volta/Makefile
index 4577591f575a..77a4972b6710 100644
--- a/www/volta/Makefile
+++ b/www/volta/Makefile
@@ -20,6 +20,7 @@ LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	cdb:${PORTSDIR}/databases/tinycdb
 
+USE_PKGCONFIG=	build
 USE_GMAKE=	yes
 USE_LUA=	5.1
 ALL_TARGET=	${PORTNAME}