MS-Windows MakeFIles - c

Question

I am trying to write makefile for ms-windows application. The idea is very simple. I have to generate the output .o, .exe files into the build directory. I have written makefile which will compile source directory, but is not able to generate the build directory and compilation process is perfectly working.
Please have a look for the makefile. It looks like i am not able to generate the build directory using mkdir command.
CC= gcc
CFLAG= -g -Wall
TARGET_EXEC ?= test.exe
RELEASE= Release
RELEASE_BIN= bin
RELEASE_CNFG= config
RELEASE_LOG= log
RELEASE_DATA=data
BUILD_DIR ?= build
SRC_DIRS ?= src
#OS dependent cleaning command
ifdef OS
RM = rd /s /q
else
ifeq ($(shell uname), Linux)
RM = rm -f
endif
endif
SRCS := $(wildcard $(SRC_DIRS)/*.c)
OBJS := $(SRCS:%=$(BUILD_DIR)/%.o)
DEPS := $(OBJS:.o=.d)
INC_DIRS := $(wildcard $(SRC_DIRS) -type d)
INC_FLAGS := $(addprefix -I,$(INC_DIRS))
#find the directory for the include file
#this is best otpion to search curl directory
USR_INC := /usr/include
FILES :=
INCLUDES = -Iinclude
LIBS= -lm
CPPFLAGS ?= $(INC_FLAGS) -MMD -MP
$(BUILD_DIR)/$(TARGET_EXEC): $(OBJS)
$(CC) $(OBJS) -o $# $(LIBS) $(LLFLAGS)
# c source
$(BUILD_DIR)/%.c.o: %.c
#echo Compiling $<
# here I am trying to generate the file into the build/src/xxxc.o
# $(MKDIR_P) $#
$(CC) $(CFLAG) -c $< -o $# $(INCLUDES)
.PHONY: install
install:
# echo "Installing..........."
# echo "Creating $(RELEASE) Directory..."
# $(MKDIR_P) $(RELEASE)
# echo "Creating $(RELEASE)/$(RELEASE_BIN) Directory.."
# $(MKDIR_P) $(RELEASE)/$(RELEASE_BIN)
# echo "Creating $(RELEASE)/$(RELEASE_CNFG) Directory..."
# $(MKDIR_P) $(RELEASE)/$(RELEASE_CNFG)
# echo "Creating $(RELEASE)/$(RELEASE_LOG) Directory..."
# $(MKDIR_P) $(RELEASE)/$(RELEASE_LOG)
# echo "Creating $(RELEASE)/$(RELEASE_DATA) Directory..."
# $(MKDIR_P) $(RELEASE)/$(RELEASE_DATA)
# echo "Makking Release folder ready.."
#cp $(BUILD_DIR)/$(TARGET_EXEC) $(RELEASE)/$(RELEASE_BIN)
# echo "copy certificate file to Release"
#cp -r cert $(RELEASE)
# echo "copy .ini file to Release"
#cp -r config/*.ini $(RELEASE)/$(RELEASE_CNFG)
.PHONY: clean
clean:
$(RM) $(BUILD_DIR) $(RELEASE)
-include $(DEPS)
MKDIR_P ?= mkdir

Answer 1

I do understand what your are trying. But please be aware that some differences in platforms and dependencies will force you to create something that is similar to a "configure" and "make" step.
So you will start to generate a custom Makefile in a tool to be invented by you sooner or later :).
It is mentioned in the comments: This has already been done and cmake is now "industrial standard"
It works on Windows, Linux, OSX and so on with great toolchain support. Have a look at it!
Example:
cmake_minimum_required(VERSION 3.4)
project(HelloWorldCMake)
set(MY_SOURCES
hello_world.c
)
add_executable(HelloWorldCMake
${MY_SOURCES}
)
And hello_world.c
#include <stdio.h>
int main()
{
printf("Hello world (cmake)");
}
If you want to link additional libraries, please research
the CMake command: target_link_libraries
https://cmake.org/cmake/help/latest/command/target_link_libraries.html