Samuel Thibault, le lun. 03 févr. 2025 07:39:25 +0100, a ecrit: > Yuqian Yang, le lun. 03 févr. 2025 14:37:16 +0800, a ecrit: > > On 2025-02-03 14:24, Zhaoming Luo wrote: > > > Cool how to you find it? > > > > Not a very wise way. Track codes, search with grep or other tools. > > > > gcc preprocessor can do this with gcc -E. But it does not work for > > system headers. > > You can #define BSD foobar and check the conflicting error message.
or some grep -e '\<BSD\>' /usr/include | grep '#define'