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								#**************************************************************************************************
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								#
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								#   raylib makefile for desktop platforms, Raspberry Pi and HTML5 (emscripten)
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								#
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								#   Copyright (c) 2014 Ramon Santamaria (@raysan5)
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								#    
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								#   This software is provided "as-is", without any express or implied warranty. In no event 
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								#   will the authors be held liable for any damages arising from the use of this software.
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								#
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								#   Permission is granted to anyone to use this software for any purpose, including commercial 
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								#   applications, and to alter it and redistribute it freely, subject to the following restrictions:
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								#
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								#     1. The origin of this software must not be misrepresented; you must not claim that you 
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								#     wrote the original software. If you use this software in a product, an acknowledgment 
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								#     in the product documentation would be appreciated but is not required.
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								#
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								#     2. Altered source versions must be plainly marked as such, and must not be misrepresented
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								#     as being the original software.
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								#
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								#     3. This notice may not be removed or altered from any source distribution.
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								#
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								#**************************************************************************************************
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								# define raylib platform to compile for
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								# possible platforms: PLATFORM_DESKTOP PLATFORM_RPI PLATFORM_WEB
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								PLATFORM ?= PLATFORM_DESKTOP
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								# determine PLATFORM_OS in case PLATFORM_DESKTOP selected
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								ifeq ($(PLATFORM),PLATFORM_DESKTOP)
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								    # No uname.exe on MinGW!, but OS=Windows_NT on Windows! ifeq ($(UNAME),Msys) -> Windows
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								    ifeq ($(OS),Windows_NT)
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								        PLATFORM_OS=WINDOWS
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								    else
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								        UNAMEOS:=$(shell uname)
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								        ifeq ($(UNAMEOS),Linux)
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								            PLATFORM_OS=LINUX
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								        else
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								        ifeq ($(UNAMEOS),Darwin)
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								            PLATFORM_OS=OSX
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								        endif
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								        endif
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								    endif
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								endif
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								# define raylib graphics api depending on selected platform
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								ifeq ($(PLATFORM),PLATFORM_RPI)
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								    # define raylib graphics api to use (on RPI, OpenGL ES 2.0 must be used)
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								    GRAPHICS = GRAPHICS_API_OPENGL_ES2
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								else
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								    # define raylib graphics api to use (OpenGL 1.1 by default)
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								    GRAPHICS ?= GRAPHICS_API_OPENGL_11
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								    #GRAPHICS = GRAPHICS_API_OPENGL_33  # Uncomment to use OpenGL 3.3
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								endif
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								ifeq ($(PLATFORM),PLATFORM_WEB)
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								    GRAPHICS = GRAPHICS_API_OPENGL_ES2
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								endif
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								# NOTE: makefiles targets require tab indentation
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								# define compiler: gcc for C program, define as g++ for C++
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								ifeq ($(PLATFORM),PLATFORM_WEB)
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								    # define emscripten compiler
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								    CC = emcc
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								else
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								    # define default gcc compiler
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								    CC = gcc
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								endif
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								# define compiler flags:
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								#  -O1              defines optimization level
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								#  -Wall            turns on most, but not all, compiler warnings
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								#  -std=c99         defines C language mode (standard C from 1999 revision)
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								#  -std=gnu99       defines C language mode (GNU C from 1999 revision)
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								#  -fgnu89-inline   declaring inline functions support (GCC optimized, faster)
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								CFLAGS = -O1 -Wall -std=gnu99 -fgnu89-inline
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								#CFLAGSEXTRA = -Wextra -Wmissing-prototypes -Wstrict-prototypes
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								# define any directories containing required header files
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								ifeq ($(PLATFORM),PLATFORM_RPI)
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								    INCLUDES = -I. -I/opt/vc/include -I/opt/vc/include/interface/vmcs_host/linux -I/opt/vc/include/interface/vcos/pthreads
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								else
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								    INCLUDES = -I. -I../src
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								# external libraries headers
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								# GLFW3
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								    INCLUDES += -I../external/glfw3/include
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								# GLEW
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								    INCLUDES += -I../external/glew/include
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								# OpenAL Soft
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								    INCLUDES += -I../external/openal_soft/include
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								endif
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								# define all object files required
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								OBJS = core.o rlgl.o glad.o shapes.o text.o textures.o models.o audio.o utils.o camera.o gestures.o stb_vorbis.o
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								# typing 'make' will invoke the first target entry in the file,
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								# in this case, the 'default' target entry is raylib
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								default: raylib
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								# compile raylib library
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								raylib: $(OBJS)
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								ifeq ($(PLATFORM),PLATFORM_WEB)
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									emcc -O1 $(OBJS) -o libraylib.bc
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								else
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									ar rcs libraylib.a $(OBJS)
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								endif
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								# compile core module
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								# emcc core.c -o core.bc -DPLATFORM_DESKTOP
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								core.o: core.c
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									$(CC) -c core.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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								# compile rlgl module
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								rlgl.o: rlgl.c
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									$(CC) -c rlgl.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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								# compile glad module
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								glad.o: glad.c
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									$(CC) -c glad.c $(CFLAGS) $(INCLUDES)
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								# compile shapes module
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								shapes.o: shapes.c
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									$(CC) -c shapes.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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								# compile textures module
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								textures.o: textures.c
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									$(CC) -c textures.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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								# compile text module
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								text.o: text.c
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									$(CC) -c text.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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								# compile models module
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								models.o: models.c
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									$(CC) -c models.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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								# compile audio module
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								audio.o: audio.c
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									$(CC) -c audio.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM)
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								# compile stb_vorbis library
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								stb_vorbis.o: stb_vorbis.c
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									$(CC) -c stb_vorbis.c -O1 $(INCLUDES) -D$(PLATFORM)
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								# compile utils module
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								utils.o: utils.c
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									$(CC) -c utils.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM)
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								# compile camera module
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								camera.o: camera.c
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									$(CC) -c camera.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM)
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								# compile gestures module
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								gestures.o: gestures.c
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									$(CC) -c gestures.c $(CFLAGS) $(INCLUDES) -D$(PLATFORM)
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								# clean everything
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								clean:
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								ifeq ($(PLATFORM),PLATFORM_DESKTOP)
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								    ifeq ($(PLATFORM_OS),OSX)
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										rm -f *.o libraylib.a
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								    else
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								    ifeq ($(PLATFORM_OS),LINUX)
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										find -type f -executable | xargs file -i | grep -E 'x-object|x-archive|x-sharedlib|x-executable' | rev | cut -d ':' -f 2- | rev | xargs rm -f
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								    else
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										del *.o libraylib.a
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								    endif
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								    endif
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								endif
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								ifeq ($(PLATFORM),PLATFORM_RPI)
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									rm -f *.o libraylib.a
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								endif
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								ifeq ($(PLATFORM),PLATFORM_WEB)
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									del *.o libraylib.bc
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								endif
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									@echo Cleaning done
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								# instead of defining every module one by one, we can define a pattern
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								# this pattern below will automatically compile every module defined on $(OBJS)
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								#%.o : %.c
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								#	$(CC) -c $< $(CFLAGS) $(INCLUDES) -D$(PLATFORM) -D$(GRAPHICS)
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