CC=gcc
CXX=g++
CXXFLAGS=-Wall -g -I$(GTEST_DIR)/include $(EIGEN_CXXFLAGS) $(GLEW_CXXFLAGS)
-LDFLAGS=-lSDL -lSDL_image -lGL -lrt -lpthread $(GLEW_LIBS)
+LDFLAGS=-lSDL -lSDL_image -lGL -lrt -lpthread -lpng $(GLEW_LIBS)
RANLIB=ranlib
ifeq ($(COVERAGE),1)
TESTS += deconvolution_sharpen_effect_test
TESTS += blur_effect_test
TESTS += unsharp_mask_effect_test
+TESTS += glow_effect_test
TESTS += diffusion_effect_test
TESTS += white_balance_effect_test
TESTS += lift_gamma_gain_effect_test