--- a/GNUmakefile
+++ b/GNUmakefile
@@ -2,6 +2,12 @@
 # Trigger Rally GNUmakefile for Linux users
 #
 
+PKG_CONFIG ?= pkg-config
+SDL2_CFLAGS = $(shell ${PKG_CONFIG} --cflags sdl2)
+SDL2_LIBS = $(shell ${PKG_CONFIG} --libs sdl2)
+SDL2_IMAGE_CFLAGS = $(shell ${PKG_CONFIG} --cflags SDL2_image)
+SDL2_IMAGE_LIBS = $(shell ${PKG_CONFIG} --libs SDL2_image)
+
 # standard GNU and custom variables
 DISTNAME        := trigger-rally
 DISTVER         := 0.6.6.1
@@ -25,8 +31,8 @@
 DMACROS         := -DNDEBUG -DUNIX -DPACKAGE_VERSION=\"$(DISTVER)\"
 INCDIRS         := -I'./include'
 CXXFLAGS        += -std=c++11 $(WARNINGS) $(OPTIMS)
-CPPFLAGS        += $(DMACROS) $(INCDIRS)
-EXTRA_LIBS      := -lSDL2main -lGL -lGLU -lGLEW -lSDL2 -lSDL2_image -lphysfs -lopenal -lalut -lpthread -ltinyxml2
+CPPFLAGS        += $(DMACROS) $(INCDIRS) $(SDL2_CFLAGS) $(SDL2_IMAGE_CFLAGS)
+EXTRA_LIBS      := $(SDL2_LIBS) $(SDL2_IMAGE_LIBS) -lSDL2main -lGL -lGLU -lGLEW -lSDL2 -lSDL2_image -lphysfs -lopenal -lalut -lpthread -ltinyxml2
 LDFLAGS         += $(EXTRA_LIBS)
 INSTALL_PROGRAM := install --mode=0755
 INSTALL_DATA    := install --mode=0644