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Variables in make can come from the environment in which make is run. Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. However, an explicit assignment in the makefile, or with a command argument, overrides the environment. Now I need to allow the user of my makefile to be able to pass arbitrary macro definitions from the “make.exe commandline” to “source code” right away, without having to change anything in the makefile. And be sure to use $(CFLAGS) in your compile command in the Makefile. As @jørgensen mentioned, putting the variable assignment after the make command will override the CFLAGS value already defined in the Makefile.
Specifying path to “makefile” using “make” command
I know its a little late but other people with similar problem might get some help. By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy. But there is also the option of self compiling. And if you have to install make, which is used for compiling, this should be a valid option. If you’re using Windows 10, it is built into the Linux subsystem feature. Just launch a Bash prompt (press the Windows key, type bash and choose “Bash on Ubuntu on Windows”), cd to the directory you want to make, and type make.
What’s the difference between := and = in Makefile?
Paste the command in the Makefile directly to the command line and see what gcc says. Installation from GnuWin32 or via winget are good and easy options. This version lacks the very important option -O, which handles the output correctly when compiling multithreaded. You can use the -C flag to specify the path to your makefile. This way you can execute it from a different directory.The -f flag has a different use.
On Linux machine most probably make will by GNU and to make user’s life isier make is soft linked to gmake. By using ‘gmake’ specifically you can use GNU make extensions without worrying about them being misinterpreted by some other make implementation. If you are familiar with programming in Linux, I highly recommend msys2. The purpose of “add path” is for convenience for your later use. From GNU Make error appendix, as you see this is not a Make error but an error coming from gcc.
Your Answer
Besides compiling source files you can use make to perform any task that can be play plinko described by shell commands. Another alternative is if you already installed MinGW and added the bin folder to the Path environment variable, you can use “mingw32-make” instead of “make”. There are multiple rules-of-thumb, but I guess that setting to total amount to + 1 is the most common.