Index: Mk/Uses/curl.mk
===================================================================
--- Mk/Uses/curl.mk
+++ Mk/Uses/curl.mk
@@ -0,0 +1,32 @@
+# $FreeBSD$
+#
+# Handle dependency on curl
+#
+# Feature:	curl
+# Usage:	USES=curl or USES=curl:ARGS
+# Valid ARGS:	lib (default, implicit), build, run, both
+#
+# MAINTAINER: portmgr@FreeBSD.org
+
+.if !defined(_INCLUDE_USES_CURL_MK)
+_INCLUDE_USES_CURL_MK=	yes
+CURL_PORT=ftp/curl
+
+.if empty(curl_ARGS)
+curl_ARGS=	lib
+.endif
+
+.if ${curl_ARGS} == lib
+LIB_DEPENDS+=	libcurl.so:${CURL_PORT}
+.elif ${curl_ARGS} == build
+BUILD_DEPENDS+=	curl:${CURL_PORT}
+.elif ${curl_ARGS} == run
+RUN_DEPENDS+=	curl:${CURL_PORT}
+.elif ${curl_ARGS} == both
+BUILD_DEPENDS+=	curl:${CURL_PORT}
+RUN_DEPENDS+=	curl:${CURL_PORT}
+.else
+IGNORE=		USES=curl - invalid args: [${curl_ARGS}] specified
+.endif
+
+.endif
Index: ports-mgmt/portlint/src/portlint.pl
===================================================================
--- ports-mgmt/portlint/src/portlint.pl
+++ ports-mgmt/portlint/src/portlint.pl
@@ -1253,6 +1253,13 @@
 					"USES[+]=iconv.");
 			}
 
+			# check USES=curl
+			if ($m{'dep'} =~ /^(curl\.\d+)$/) {
+				&perror("WARN", $file, -1, "dependency to $1 ".
+					"listed in $j.  consider using ".
+					"USES[+]=curl.");
+			}
+
 			# check USES=gettext
 			if ($m{'dep'} =~ /^(intl\.\d+)$/) {
 				&perror("WARN", $file, -1, "dependency to $1 ".