obs-studio/libobs-opengl/makefile.am

AUTOMAKE_OPTIONS = subdir-objects
AM_CFLAGS = -DGLEW_NO_GLU -DGLEW_STATIC -isystem$(top_srcdir)/libobs -isystem./glew/include

if OS_WIN
if ARCH_X86
libobs_opengldir = ../build/bin/32bit
else
libobs_opengldir = ../build/bin/64bit
endif
else
libobs_opengldir = $(libdir)
endif

libobs_opengl_LTLIBRARIES = libobs-opengl.la

libobs_opengl_la_LDFLAGS = -no-undefined
libobs_opengl_la_LIBADD = ../libobs/libobs.la
if OS_WIN
libobs_opengl_la_LDFLAGS += -mwindows -avoid-version
libobs_opengl_la_LIBADD += -lopengl32
endif
libobs_opengl_la_SOURCES = gl-helpers.c \
			   gl-indexbuffer.c \
			   gl-shader.c \
			   gl-shaderparser.c \
			   gl-stagesurf.c \
			   gl-subsystem.c \
			   gl-texture2d.c \
			   gl-texturecube.c \
			   gl-vertexbuffer.c \
			   gl-zstencil.c \
			   glew/src/glew.c

if OS_OSX
libobs_opengl_la_SOURCES += gl-cocoa.m
libobs_opengl_la_LDFLAGS += -framework Cocoa -framework IOSurface
endif

if OS_WIN
libobs_opengl_la_SOURCES += gl-windows.c
endif

if OS_NIX
libobs_opengl_la_SOURCES += gl-x11.c
endif