This is a GNU makefile framework which helps your development in environment without support of IDE.

This gnu-make-framework-zen has these features,

• Make dependencies automatically
• Make library at each directory
• Separating Source and Binary
• Supporting Multiple Binary Trees
• Multi platform, GNU/Linux, Mac OS X, MSYS2（Windows）

File tree is as following. It has sample programs, simple spinner and embunit. （embunit is a test framework for embedded systems)

├── GNUmakefile        --- Top Makfile
├── LICENSE.txt        --- License file
├── README.md          --- This file
├── build
│   ├── clean_all.mk            --- To clean all generated objects
│   ├── clear_local_variable.mk --- To initialize variables of submakefiles
│   ├── create_executable.mk    --- Define macro that create executable files
│   ├── create_library.mk       --- Define macro that create libraries
│   ├── define_macro.mk         --- Define util macros
│   ├── define_pattern_rule.mk  --- Define pattern rules
│   ├── define_suffix_rule.mk   --- Define suffix rules
│   └── set_toolchain.mk        --- Set toolchain
└── src
    ├── modules
    │   ├── embunit
    │   │   ├── module.mk       --- Set libraries name and set sources that depend it
    │   │   ├── *.c
    │   │   └── *.h
    │   └── spinner_progressbar
    │       ├── module.mk
    │       ├── *.c
    │       └── *.h
    └── targets
        ├── sample_embunit
        │   ├── target.mk       --- Set executable file name and set source or libraries that depend it
        │   ├── *.c
        │   └── *.h
        └── sample_spinner
            ├── target.mk
            └── *.c

• Make directory under src/modules/
• Put sources at it
• Make module.mk

For example, embunit's module.mk is as following.

local_directory := $(subdirectory)
include $(CLEAR_LOCAL_VARIABLE)

local_module    := embunit

local_sources   := AssertImpl.c
local_sources   += TestCaller.c
local_sources   += TestResult.c
local_sources   += TestSuite.c
local_sources   += RepeatedTest.c
local_sources   += TestCase.c
local_sources   += TestRunner.c
local_sources   += stdImpl.c

local_includes  := $(local_directory)
local_cflags    :=
local_libraries :=

include $(CREATE_LIBRARY)

First, don't change top of 2 lines, "local_directory := $(subdirectory)", "include $(CLEAR_LOCAL_VARIABLE) ". And, don't change last line, "include $(CREATE_LIBRARY)". Other lines should be set as following.

• Make directory under src/targets/
• Put sources at it
• Make module.mk

For example, sample embunit's module.mk is as following.

local_directory := $(subdirectory)
include $(CLEAR_LOCAL_VARIABLE)

local_target    := sample_embunit

local_libraries := embunit
local_ld_entry  := $(local_directory)/AllTests.c
local_sources   :=
local_sources   += counter.c
local_sources   += counterTest.c
local_sources   += person.c
local_sources   += personTest.c

local_includes  := modules/embunit

include $(CREATE_EXECUTABLE)

First, don't change top of 2 lines, "local_directory := $(subdirectory)", "include $(CLEAR_LOCAL_VARIABLE)". And, don't change last line, "include $(CREATE_EXECUTABLE)". Other lines should be set as following.

$ mkdir outputs
$ cd outputs
$ make -f ../GNUmakefile
$ export LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH
$ ./sample_programs

MIT License

Copyright (c) [2017] [NAGAYASU Shinya]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

MIT/X Consortium License

http://embunit.sourceforge.net/embunit/

https://www.oreilly.com/openbook/make3/book/index.csp