Defined in 3 files as a macro:

• build-aux/warn-on-use.h, line 88 (as a macro)
• build-aux/warn-on-use.h, line 93 (as a macro)
• build-aux/warn-on-use.h, line 96 (as a macro)

Referenced in 2 files:

• build-aux/c++defs.h, line 256
• build-aux/warn-on-use.h, line 86