Improve Makefile organization

2 files changed, 63 insertions, 51 deletions

diff --git a/examples/Makefile b/examples/Makefile
index f0bb6404..d33dc212 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -22,18 +22,18 @@
 #**************************************************************************************************
 
 .PHONY: all clean
+# Define required environment variables
+#------------------------------------------------------------------------------------------------
 
 # Define required raylib variables
 PROJECT_NAME       ?= raylib_examples
 RAYLIB_VERSION     ?= 4.0.0
 RAYLIB_PATH        ?= ..
 
-# Define default options
-
 # One of PLATFORM_DESKTOP, PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB
 PLATFORM           ?= PLATFORM_DESKTOP
 
-# Locations of your newly installed library and associated headers. See ../src/Makefile
+# Locations of your newly installed library and associated headers.
 # On Linux, if you have installed raylib but cannot compile the examples, check that
 # the *_INSTALL_PATH values here are the same as those in src/Makefile or point to known locations.
 # To enable system-wide compile-time and runtime linking to libraylib.so, run ../src/$ sudo make install RAYLIB_LIBTYPE_SHARED.
@@ -75,39 +75,39 @@ ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     # No uname.exe on MinGW!, but OS=Windows_NT on Windows!
     # ifeq ($(UNAME),Msys) -> Windows
     ifeq ($(OS),Windows_NT)
-        PLATFORM_OS=WINDOWS
+        PLATFORM_OS = WINDOWS
     else
-        UNAMEOS=$(shell uname)
+        UNAMEOS = $(shell uname)
         ifeq ($(UNAMEOS),Linux)
-            PLATFORM_OS=LINUX
+            PLATFORM_OS = LINUX
         endif
         ifeq ($(UNAMEOS),FreeBSD)
-            PLATFORM_OS=BSD
+            PLATFORM_OS = BSD
         endif
         ifeq ($(UNAMEOS),OpenBSD)
-            PLATFORM_OS=BSD
+            PLATFORM_OS = BSD
         endif
         ifeq ($(UNAMEOS),NetBSD)
-            PLATFORM_OS=BSD
+            PLATFORM_OS = BSD
         endif
         ifeq ($(UNAMEOS),DragonFly)
-            PLATFORM_OS=BSD
+            PLATFORM_OS = BSD
         endif
         ifeq ($(UNAMEOS),Darwin)
-            PLATFORM_OS=OSX
+            PLATFORM_OS = OSX
         endif
     endif
 endif
 ifeq ($(PLATFORM),PLATFORM_RPI)
-    UNAMEOS=$(shell uname)
+    UNAMEOS = $(shell uname)
     ifeq ($(UNAMEOS),Linux)
-        PLATFORM_OS=LINUX
+        PLATFORM_OS = LINUX
     endif
 endif
 ifeq ($(PLATFORM),PLATFORM_DRM)
-    UNAMEOS=$(shell uname)
+    UNAMEOS = $(shell uname)
     ifeq ($(UNAMEOS),Linux)
-        PLATFORM_OS=LINUX
+        PLATFORM_OS = LINUX
     endif
 endif
 
@@ -158,8 +158,8 @@ RAYLIB_RELEASE_PATH 	?= $(RAYLIB_PATH)/src
 # Look for libraylib.so.1 => $(RAYLIB_INSTALL_PATH)/libraylib.so.1 or similar listing.
 EXAMPLE_RUNTIME_PATH   ?= $(RAYLIB_RELEASE_PATH)
 
-# Define default C compiler: gcc
-# NOTE: define g++ compiler if using C++
+# Define default C compiler: CC
+#------------------------------------------------------------------------------------------------
 CC = gcc
 
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
@@ -186,7 +186,8 @@ ifeq ($(PLATFORM),PLATFORM_WEB)
     CC = emcc
 endif
 
-# Define default make program
+# Define default make program: MAKE
+#------------------------------------------------------------------------------------------------
 MAKE ?= make
 
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
@@ -201,7 +202,8 @@ ifeq ($(PLATFORM),PLATFORM_WEB)
     MAKE = mingw32-make
 endif
 
-# Define compiler flags:
+# Define compiler flags: CFLAGS
+#------------------------------------------------------------------------------------------------
 #  -O1                  defines optimization level
 #  -g                   include debug information on compilation
 #  -s                   strip unnecessary data from build
@@ -245,7 +247,8 @@ ifeq ($(PLATFORM),PLATFORM_DRM)
     CFLAGS += -std=gnu99 -DEGL_NO_X11
 endif
 
-# Define include paths for required headers
+# Define include paths for required headers: INCLUDE_PATHS
+#------------------------------------------------------------------------------------------------
 # NOTE: Some external/extras libraries could be required (stb, physac, easings...)
 INCLUDE_PATHS = -I. -I$(RAYLIB_PATH)/src -I$(RAYLIB_PATH)/src/external -I$(RAYLIB_PATH)/src/extras
 
@@ -270,7 +273,8 @@ ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     endif
 endif
 
-# Define library paths containing required libs.
+# Define library paths containing required libs: LDFLAGS
+#------------------------------------------------------------------------------------------------
 LDFLAGS = -L. -L$(RAYLIB_RELEASE_PATH) -L$(RAYLIB_PATH)/src
 
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
@@ -322,8 +326,9 @@ ifeq ($(PLATFORM),PLATFORM_RPI)
     LDFLAGS += -L$(RPI_TOOLCHAIN_SYSROOT)/opt/vc/lib
 endif
 
-# Define any libraries required on linking
-# if you want to link libraries (libname.so or libname.a), use the -lname
+# Define libraries required on linking: LDLIBS
+# NOTE: To link libraries (lib<name>.so or lib<name>.a), use -l<name>
+#------------------------------------------------------------------------------------------------
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     ifeq ($(PLATFORM_OS),WINDOWS)
         # Libraries for Windows desktop compilation
@@ -387,7 +392,8 @@ ifeq ($(PLATFORM),PLATFORM_WEB)
     LDLIBS = $(RAYLIB_RELEASE_PATH)/libraylib.a
 endif
 
-# Define all object files required
+# Define source code object files required
+#------------------------------------------------------------------------------------------------
 CORE = \
     core/core_basic_window \
     core/core_basic_screen_manager \
@@ -526,6 +532,8 @@ PHYSICS = \
 
 CURRENT_MAKEFILE = $(lastword $(MAKEFILE_LIST))
 
+# Define processes to execute
+#------------------------------------------------------------------------------------------------
 # Default target entry
 all: $(CORE) $(SHAPES) $(TEXT) $(TEXTURES) $(MODELS) $(SHADERS) $(AUDIO) $(PHYSICS)
 
diff --git a/src/Makefile b/src/Makefile
index 4ecad6f8..23eac580 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -15,33 +15,33 @@
 #  Many thanks to Milan Nikolic (@gen2brain) for implementing Android platform pipeline.
 #  Many thanks to Emanuele Petriglia for his contribution on GNU/Linux pipeline.
 #
-#  Copyright (c) 2014-2022 Ramon Santamaria (@raysan5)
+#   Copyright (c) 2013-2022 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.
+#   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:
+#   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.
+#     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.
+#     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.
+#     3. This notice may not be removed or altered from any source distribution.
 #
-#******************************************************************************
+#**************************************************************************************************
 
 # Please read the wiki to know how to compile raylib, because there are different methods.
 # https://github.com/raysan5/raylib/wiki
 
 .PHONY: all clean install uninstall
 
+# Define required environment variables
+#------------------------------------------------------------------------------------------------
+
 # Define required raylib variables
 RAYLIB_VERSION        = 4.0.0
 RAYLIB_API_VERSION    = 400
@@ -220,7 +220,8 @@ ifeq ($(PLATFORM),PLATFORM_ANDROID)
     GRAPHICS = GRAPHICS_API_OPENGL_ES2
 endif
 
-# Define default C compiler and archiver to pack library
+# Define default C compiler and archiver to pack library: CC, AR
+#------------------------------------------------------------------------------------------------
 CC = gcc
 AR = ar
 
@@ -266,7 +267,8 @@ ifeq ($(PLATFORM),PLATFORM_ANDROID)
     AR = $(ANDROID_TOOLCHAIN)/bin/llvm-ar
 endif
 
-# Define compiler flags:
+# Define compiler flags: CFLAGS
+#------------------------------------------------------------------------------------------------
 #  -O1                      defines optimization level
 #  -g                       include debug information on compilation
 #  -s                       strip unnecessary data from build
@@ -377,7 +379,8 @@ ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     endif
 endif
 
-# Define include paths for required headers
+# Define include paths for required headers: INCLUDE_PATHS
+#------------------------------------------------------------------------------------------------
 # NOTE: Several external required libraries (stb and others)
 INCLUDE_PATHS = -I. -Iexternal/glfw/include -Iexternal/glfw/deps/mingw
 
@@ -418,7 +421,9 @@ ifeq ($(PLATFORM),PLATFORM_ANDROID)
     endif
 endif
 
-# Define linker flags (required for dynamic library generation)
+# Define library paths containing required libs: LDFLAGS
+# NOTE: This is only required for dynamic library generation
+#------------------------------------------------------------------------------------------------
 LDFLAGS = -L. -L$(RAYLIB_RELEASE_PATH)
 
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
@@ -452,7 +457,9 @@ ifeq ($(PLATFORM),PLATFORM_ANDROID)
     LDFLAGS += -Wl,-undefined,dynamic_lookup
 endif
 
-# Define linker libraries (required for dynamic library generation)
+# Define libraries required on linking: LDLIBS
+# NOTE: This is only required for dynamic library generation
+#------------------------------------------------------------------------------------------------
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     ifeq ($(PLATFORM_OS),WINDOWS)
         LDLIBS = -static-libgcc -lopengl32 -lgdi32 -lwinmm
@@ -485,13 +492,8 @@ ifeq ($(PLATFORM),PLATFORM_ANDROID)
     LDLIBS = -llog -landroid -lEGL -lGLESv2 -lOpenSLES -lc -lm
 endif
 
-# Define all object files required with a wildcard
-# The wildcard takes all files that finish with ".c",
-# and replaces extentions with ".o", that are the object files
-# NOTE: Some objects depend on the PLATFORM to be added or not!
-# OBJS = $(patsubst %.c, %.o, $(wildcard *.c))
-
-# Define object required on compilation
+# Define source code object files required
+#------------------------------------------------------------------------------------------------
 OBJS = rcore.o \
        rshapes.o \
        rtextures.o \
@@ -520,6 +522,8 @@ ifeq ($(PLATFORM),PLATFORM_ANDROID)
     OBJS += android_native_app_glue.o
 endif
 
+# Define processes to execute
+#------------------------------------------------------------------------------------------------
 # Default target entry
 all: raylib