Link against -lpng, since we can now write screenshots in PNG format.

diff --git a/Makefile b/Makefile
index 8bfaf9fa6c5bac3796388c16cf3ed68d852ec3bb..c905c599393972fec0ce2b71046772967f2faf4c 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ endif
 CC=gcc
 CXX=g++
 CXXFLAGS=-Wall -g -I$(GTEST_DIR)/include $(EIGEN_CXXFLAGS) $(GLEW_CXXFLAGS)
 CC=gcc
 CXX=g++
 CXXFLAGS=-Wall -g -I$(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)
 RANLIB=ranlib
 
 ifeq ($(COVERAGE),1)