message: Disable -Wmissing-field-initializers to appease gcc 4.8.4
  Unfortunately gcc 4.8.4 warns on "Foo foo = {}":
  This appears to be fixed in gcc 5 but Travis uses gcc 4.8.4.
diff: @@ -8,7 +8,7 @@ OBJECTS=$(SOURCES:%=$(BUILD)/%.o)
  EXECUTABLE=$(BUILD)/meshoptimizer
  -CXXFLAGS=-g -Wall -Wextra -Werror -std=c++11 -O3 -DNDEBUG
  +CXXFLAGS=-g -Wall -Wextra -Wno-missing-field-initializers -Werror -std=c++11 -O3 -DNDEBUG
  LDFLAGS=
  all: $(EXECUTABLE)
  