How to define macro for C project in autotools?

Question

How do I define macros on a per-project, or per file level in a C project using autotools?

Presently I have this: mount_cpfs_CPPFLAGS = -DFUSE_USE_VERSION=28 , but I'm not sure that this is the "portable" way to define a C macro.

Answer 1

考虑将生成的头文件与AC_DEFINE 。