Here is a list of all macros with links to the files they belong to:

A

C

D

E

F

H

I

L

M

N

O

P

R

S

T

U

W

X

Y

Z

_

- _ -

• _ : Gettext.h
• __zypp_defer_concatenate : AutoDispose.h
• __zypp_defer_declarator : AutoDispose.h
• _GNU_SOURCE : ExternalDataSource.cc, ExternalProgram.cc