c++ - How to add #define in Makefile? - Stack Overflow
Nov 13, 2018 · Let's say you want a replacement for #define MYDEF. In your makefile you have the compiler command line, something like (simplest example): g++ -o myfile.cpp To get that …
How to define a C++ preprocessor variable in Makefile
Jan 24, 2024 · Technically, because you can do it from the commandline, it can be done from the makefile -- just put the relevant command in the makefile. (pedantry aside, this comment may …
Passing C/C++ #defines to makefile - Stack Overflow
Jan 20, 2010 · For GCC use -D define. OP commented below that he wants to pass the define into make and have it pass it on to GCC. Make does not allow this. Typically you just add …
c - How can I define #define in my Make files - Stack Overflow
Sep 28, 2016 · If you modify Makefile.in to always define them, then you are making the assumption that your code is only being built on machines where those features are available. …
Define in Makefile - Stack Overflow
Mar 15, 2025 · Define in Makefile. Ask Question Asked 9 years, 9 months ago. Modified 7 years, 6 months ago. Viewed 5k ...
Change Makefile variable value inside the target body
Apr 26, 2010 · Docs: "Be aware that a given prerequisite will only be built once per invocation of make, at most.If the same file is a prerequisite of multiple targets, and each of those targets …
Is it possible to define a C macro in a makefile? - Stack Overflow
Mar 14, 2011 · Even more cute if the fact the CFLAGS=...above can be used on the command line rather than written in the Makefile (read man(1) manual page); this allows for easy …
#ifdef and conditional compilation with Makefile - Stack Overflow
May 14, 2018 · Makefile. The variable WITH_ATS is not empty when running make WITH_ATS=0, and therefore ifdef WITH_ATS in the makefile evaluates to true (i.e., not what …
makefile - How to use ifeq inside of a define in GNU Make
Apr 11, 2020 · @CraigRinger -- just looking at this. If you do an ifeq ($1,) inside of the macro, the $1 is not expanded until the $(call is expanded, and thus it is valid to use the ifeq inside of the …
makefile里面如何运用 #define - CSDN社区
Dec 29, 2009 · makefile_define补充 对 makefile 里的 define 补充说明 makefile 里可能会用到 define 来打包一些可能会重用的指令，但是因为 makefile 里实际上会重用代码的情况并不多…