Index: Mk/Uses/execinfo.mk
===================================================================
--- Mk/Uses/execinfo.mk
+++ Mk/Uses/execinfo.mk
@@ -5,13 +5,23 @@
 # Feature:	execinfo
 # Usage:	USES=execinfo
 #
-# Take no arguments
+# Takes no arguments
+#
+# Exported variables:
+#
+# EXECINFO_CPPFLAGS - preprocessor flags needed to correctly use
+#                     execinfo library
+# EXECINFO_LDFLAGS  - linker flags needed to correctly use
+#                     execinfo library
+#
 
 .if !defined(_INCLUDE_USES_EXECINFO_MK)
 _INCLUDE_USES_EXECINFO_MK=	yes
 
 .if !exists(/usr/lib/libexecinfo.so)
 LIB_DEPENDS+=	libexecinfo.so:${PORTSDIR}/devel/libexecinfo
+EXECINFO_CPPFLAGS=	-I${LOCALBASE}/include
+EXECINFO_LDFLAGS=	-L${LOCALBASE}/lib
 .endif
 
 .endif