Makefile

#**************************************************************************************************
#
#   raylib makefile for Desktop platforms, Raspberry Pi, Android and HTML5
#
#   Copyright (c) 2013-2023 Ramon Santamaria (@raysan5)
#
#   This software is provided "as-is", without any express or implied warranty. In no event
#   will the authors be held liable for any damages arising from the use of this software.
#
#   Permission is granted to anyone to use this software for any purpose, including commercial
#   applications, and to alter it and redistribute it freely, subject to the following restrictions:
#
#     1. The origin of this software must not be misrepresented; you must not claim that you
#     wrote the original software. If you use this software in a product, an acknowledgment
#     in the product documentation would be appreciated but is not required.
#
#     2. Altered source versions must be plainly marked as such, and must not be misrepresented
#     as being the original software.
#
#     3. This notice may not be removed or altered from any source distribution.
#
#**************************************************************************************************

.PHONY: all clean

# Define required raylib variables
PROJECT_NAME       ?= main
RAYLIB_VERSION     ?= 4.0.0
RAYLIB_PATH        ?= C:/raylib/raylib
COMPILER_PATH      ?= C:/raylib/w64devkit/bin
BUILD_MODE         ?= RELEASE
EXT				   ?= .exe
PLATFORM           ?= PLATFORM_DESKTOP
# One of PLATFORM_DESKTOP, PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB

DESTDIR ?= /usr/local
RAYLIB_INSTALL_PATH ?= $(DESTDIR)/lib
RAYLIB_H_INSTALL_PATH ?= $(DESTDIR)/include
RAYLIB_LIBTYPE        ?= STATIC
USE_EXTERNAL_GLFW     ?= FALSE
USE_WAYLAND_DISPLAY   ?= FALSE

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(OS),Windows_NT)
        PLATFORM_OS=WINDOWS
        export PATH := $(COMPILER_PATH):$(PATH)
    else
        UNAMEOS=$(shell uname)
        ifeq ($(UNAMEOS),Linux)
            PLATFORM_OS=LINUX
        endif
        ifeq ($(UNAMEOS),FreeBSD)
            PLATFORM_OS=BSD
        endif
        ifeq ($(UNAMEOS),OpenBSD)
            PLATFORM_OS=BSD
        endif
        ifeq ($(UNAMEOS),NetBSD)
            PLATFORM_OS=BSD
        endif
        ifeq ($(UNAMEOS),DragonFly)
            PLATFORM_OS=BSD
        endif
        ifeq ($(UNAMEOS),Darwin)
            PLATFORM_OS=OSX
        endif
    endif
endif
ifeq ($(PLATFORM),PLATFORM_RPI)
    UNAMEOS=$(shell uname)
    ifeq ($(UNAMEOS),Linux)
        PLATFORM_OS=LINUX
    endif
endif

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),LINUX)
        RAYLIB_PREFIX ?= ..
        RAYLIB_PATH    = $(realpath $(RAYLIB_PREFIX))
    endif
endif
ifeq ($(PLATFORM),PLATFORM_RPI)
    RAYLIB_PATH       ?= /home/pi/raylib
endif

ifeq ($(PLATFORM),PLATFORM_WEB)
    EMSDK_PATH          ?= C:/emsdk
    EMSCRIPTEN_VERSION  ?= 1.38.31
    CLANG_VERSION       = e$(EMSCRIPTEN_VERSION)_64bit
    PYTHON_VERSION      = 2.7.13.1_64bit\python-2.7.13.amd64
    NODE_VERSION        = 8.9.1_64bit
    export PATH         = $(EMSDK_PATH);$(EMSDK_PATH)\clang\$(CLANG_VERSION);$(EMSDK_PATH)\node\$(NODE_VERSION)\bin;$(EMSDK_PATH)\python\$(PYTHON_VERSION);$(EMSDK_PATH)\emscripten\$(EMSCRIPTEN_VERSION);C:\raylib\MinGW\bin:$$(PATH)
    EMSCRIPTEN          = $(EMSDK_PATH)\emscripten\$(EMSCRIPTEN_VERSION)
endif

RAYLIB_RELEASE_PATH 	?= $(RAYLIB_PATH)/src
EXAMPLE_RUNTIME_PATH   ?= $(RAYLIB_RELEASE_PATH)

# NOTE: define g++ compiler if using C++
CC = gcc

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),OSX)
        CC = clang
    endif
    ifeq ($(PLATFORM_OS),BSD)
        CC = clang
    endif
endif
ifeq ($(PLATFORM),PLATFORM_RPI)
    ifeq ($(USE_RPI_CROSS_COMPILER),TRUE)
        CC = $(RPI_TOOLCHAIN)/bin/arm-linux-gnueabihf-gcc
    endif
endif
ifeq ($(PLATFORM),PLATFORM_WEB)
    CC = emcc
endif

MAKE = mingw32-make

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),LINUX)
        MAKE = make
    endif
    ifeq ($(PLATFORM_OS),OSX)
        MAKE = make
    endif
endif

# Define compiler flags:
#  -O0                  defines optimization level (no optimization, better for debugging)
#  -O1                  defines optimization level
#  -g                   include debug information on compilation
#  -s                   strip unnecessary data from build -> do not use in debug builds
#  -Wall                turns on most, but not all, compiler warnings
#  -std=c99             defines C language mode (standard C from 1999 revision)
#  -std=gnu99           defines C language mode (GNU C from 1999 revision)
#  -Wno-missing-braces  ignore invalid warning (GCC bug 53119)
#  -D_DEFAULT_SOURCE    use with -std=c99 on Linux and PLATFORM_WEB, required for timespec
CFLAGS += -Wall -std=c99 -D_DEFAULT_SOURCE -Wno-missing-braces

ifeq ($(BUILD_MODE),DEBUG)
    CFLAGS += -g -O0
else
    CFLAGS += -s -O1
endif

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),LINUX)
        ifeq ($(RAYLIB_LIBTYPE),STATIC)
            CFLAGS += -D_DEFAULT_SOURCE
        endif
        ifeq ($(RAYLIB_LIBTYPE),SHARED)
            CFLAGS += -Wl,-rpath,$(EXAMPLE_RUNTIME_PATH)
        endif
    endif
endif
ifeq ($(PLATFORM),PLATFORM_RPI)
    CFLAGS += -std=gnu99
endif
ifeq ($(PLATFORM),PLATFORM_WEB)
    # -Os                        # size optimization
    # -O2                        # optimization level 2, if used, also set --memory-init-file 0
    # -s USE_GLFW=3              # Use glfw3 library (context/input management)
    # -s ALLOW_MEMORY_GROWTH=1   # to allow memory resizing -> WARNING: Audio buffers could FAIL!
    # -s TOTAL_MEMORY=16777216   # to specify heap memory size (default = 16MB)
    # -s USE_PTHREADS=1          # multithreading support
    # -s WASM=0                  # disable Web Assembly, emitted by default
    # -s EMTERPRETIFY=1          # enable emscripten code interpreter (very slow)
    # -s EMTERPRETIFY_ASYNC=1    # support synchronous loops by emterpreter
    # -s FORCE_FILESYSTEM=1      # force filesystem to load/save files data
    # -s ASSERTIONS=1            # enable runtime checks for common memory allocation errors (-O1 and above turn it off)
    # --profiling                # include information for code profiling
    # --memory-init-file 0       # to avoid an external memory initialization code file (.mem)
    # --preload-file resources   # specify a resources folder for data compilation
    CFLAGS += -Os -s USE_GLFW=3 -s TOTAL_MEMORY=16777216 --preload-file resources
    ifeq ($(BUILD_MODE), DEBUG)
        CFLAGS += -s ASSERTIONS=1 --profiling
    endif

    # Define a custom shell .html and output extension
    CFLAGS += --shell-file $(RAYLIB_PATH)/src/shell.html
    EXT = .html
endif

INCLUDE_PATHS = -I. -I$(RAYLIB_PATH)/src -I$(RAYLIB_PATH)/src/external

ifeq ($(PLATFORM),PLATFORM_RPI)
    INCLUDE_PATHS += -I/opt/vc/include
    INCLUDE_PATHS += -I/opt/vc/include/interface/vmcs_host/linux
    INCLUDE_PATHS += -I/opt/vc/include/interface/vcos/pthreads
endif
ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),BSD)
        INCLUDE_PATHS += -I/usr/local/include
    endif
    ifeq ($(PLATFORM_OS),LINUX)
        INCLUDE_PATHS = -I$(RAYLIB_H_INSTALL_PATH) -isystem. -isystem$(RAYLIB_PATH)/src -isystem$(RAYLIB_PATH)/release/include -isystem$(RAYLIB_PATH)/src/external
    endif
endif

LDFLAGS = -L. -L$(RAYLIB_RELEASE_PATH) -L$(RAYLIB_PATH)/src

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),WINDOWS)
        LDFLAGS += $(RAYLIB_PATH)/src/raylib.rc.data
		ifeq ($(BUILD_MODE),RELEASE)
        	# -Wl,--subsystem,windows hides the console window
            LDFLAGS += -Wl,--subsystem,windows
		endif
    endif
    ifeq ($(PLATFORM_OS),BSD)
        LDFLAGS += -L. -Lsrc -L/usr/local/lib
    endif
    ifeq ($(PLATFORM_OS),LINUX)
        LDFLAGS = -L. -L$(RAYLIB_INSTALL_PATH) -L$(RAYLIB_RELEASE_PATH)
    endif
endif

ifeq ($(PLATFORM),PLATFORM_RPI)
    LDFLAGS += -L/opt/vc/lib
endif

ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),WINDOWS)
        LDLIBS = -lraylib -lopengl32 -lgdi32 -lwinmm
        # Required for physac examples
        #LDLIBS += -static -lpthread
    endif
    ifeq ($(PLATFORM_OS),LINUX)
        LDLIBS = -lraylib -lGL -lm -lpthread -ldl -lrt
        
        LDLIBS += -lX11
        
        ifeq ($(USE_WAYLAND_DISPLAY),TRUE)
            LDLIBS += -lwayland-client -lwayland-cursor -lwayland-egl -lxkbcommon
        endif
        ifeq ($(RAYLIB_LIBTYPE),SHARED)
            LDLIBS += -lc
        endif
    endif
    ifeq ($(PLATFORM_OS),OSX)
        LDLIBS = -lraylib -framework OpenGL -framework OpenAL -framework Cocoa
    endif
    ifeq ($(PLATFORM_OS),BSD)
        LDLIBS = -lraylib -lGL -lpthread -lm

        LDLIBS += -lX11 -lXrandr -lXinerama -lXi -lXxf86vm -lXcursor
    endif
    ifeq ($(USE_EXTERNAL_GLFW),TRUE)
        LDLIBS += -lglfw
    endif
endif
ifeq ($(PLATFORM),PLATFORM_RPI)
    LDLIBS = -lraylib -lbrcmGLESv2 -lbrcmEGL -lpthread -lrt -lm -lbcm_host -ldl
endif
ifeq ($(PLATFORM),PLATFORM_WEB)
    LDLIBS = $(RAYLIB_RELEASE_PATH)/libraylib.bc
endif

SRC_DIR = src
OBJ_DIR = obj

SRC = $(wildcard $(SRC_DIR)/*.c)
OBJS = $(SRC:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o)

ifeq ($(PLATFORM),PLATFORM_ANDROID)
    MAKEFILE_PARAMS = -f Makefile.Android 
    export PROJECT_NAME
    export SRC_DIR
else
    MAKEFILE_PARAMS = $(PROJECT_NAME)
endif

all:
	$(MAKE) $(MAKEFILE_PARAMS)

$(PROJECT_NAME): $(OBJS)
	$(CC) -o $(PROJECT_NAME)$(EXT) $(OBJS) $(CFLAGS) $(INCLUDE_PATHS) $(LDFLAGS) $(LDLIBS) -D$(PLATFORM)

$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
	$(CC) -c $< -o $@ $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM)

clean:
ifeq ($(PLATFORM),PLATFORM_DESKTOP)
    ifeq ($(PLATFORM_OS),WINDOWS)
		del *.o *.exe /s
    endif
    ifeq ($(PLATFORM_OS),LINUX)
	find -type f -executable | xargs file -i | grep -E 'x-object|x-archive|x-sharedlib|x-executable' | rev | cut -d ':' -f 2- | rev | xargs rm -fv
    endif
    ifeq ($(PLATFORM_OS),OSX)
		find . -type f -perm +ugo+x -delete
		rm -f *.o
    endif
endif
ifeq ($(PLATFORM),PLATFORM_RPI)
	find . -type f -executable -delete
	rm -fv *.o
endif
ifeq ($(PLATFORM),PLATFORM_WEB)
	del *.o *.html *.js
endif
	@echo Cleaning done