Index: usr.bin/clang/llvm-cov/Makefile
===================================================================
--- usr.bin/clang/llvm-cov/Makefile
+++ usr.bin/clang/llvm-cov/Makefile
@@ -1,7 +1,16 @@
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 PROG_CXX=	llvm-cov
 
+# llvm-cov acts as a drop-in replacement for gcov, if argv[0] is gcov.
+# Install llvm-cov as gcov if GNU gcov is not being installed.
+.if ${MK_GCC} == "no" || ${MK_GCOV} == "no"
+LINKS=		${BINDIR}/llvm-cov	${BINDIR}/gcov
+MLINKS=		llvm-cov.1		gcov.1
+.endif
+
 SRCDIR=		tools/llvm-cov
 SRCS+=		CodeCoverage.cpp
 SRCS+=		CoverageExporterJson.cpp