Bash Make examples

pi@raspberrypi:~/Downloads/raylib/raylib-master/examples $ make

gcc -o core_basic_window core_basic_window.c -O2 -Wall -std=c99 -I. -I../src -I../external/glfw3/include -I../external/glew/include -I../external/openal_soft/include -L. -L../src -L../external/glfw3/lib/linux -L../external/openal_soft/lib/linux -L../external/glew/lib/linux -lraylib -lglfw3 -lGLEW -lGL -lopenal -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor -lm -pthread -DPLATFORM_DESKTOP

../external/glfw3/lib/linux/libglfw3.a: error adding symbols: File format not recognized

collect2: error: ld returned 1 exit status

makefile:207: recipe for target 'core_basic_window' failed

make: *** [core_basic_window] Error 1