c - 从源代码(GNU 编译器)与构建窗口对话

Question

是否可以从源代码向 GNU 构建窗口传递消息？像这样的东西:

foo.c(不是 makefile)

#ifdef DEBUG
   Echo "The Debug flag is set"

// more code here

Answer 1

查看 gcc 中的诊断编译指示:

http://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Pragmas.html

例如

GCC also offers a simple mechanism for printing messages during compilation. `#pragma message string` Prints string as a compiler message on compilation. The message is informational only, and is neither a compilation warning nor an error.

          #pragma message "Compiling " __FILE__ "..."