Index: devel/googletest/Makefile
===================================================================
--- devel/googletest/Makefile
+++ devel/googletest/Makefile
@@ -4,7 +4,7 @@
 PORTNAME=	googletest
 DISTVERSIONPREFIX=	release-
 DISTVERSION=	1.8.1
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel
 
 MAINTAINER=	jbeich@FreeBSD.org
@@ -26,6 +26,12 @@
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 
+# googletest requires pthread in order to function and does not properly
+# detect pthread support.
+#
+# See: https://github.com/google/googletest/issues/2162.
+LIBS+=		-lpthread
+
 post-patch:
 # enable vendor make install again (revert 661758e)
 	@${REINPLACE_CMD} -E 's/install-(exec|data)-local/&-dummy/' \