The $< variable is not defined in explicit rules on FreeBSD10 and causes Kea build to fail. This change was reviewed and agreed on jabber.
@@ -7,4 +7,4 @@ libgtest_a_CXXFLAGS = $(GTEST_INCLUDES) $(AM_CXXFLAGS)
nodist_libgtest_a_SOURCES = gtest-all.cc
gtest-all.cc: $(GTEST_SOURCE)/src/gtest-all.cc
- cp -p $< $@
+ cp -p $(GTEST_SOURCE)/src/gtest-all.cc $@