__glibc_has_attribute   44 maint/gnulib/lib/cdefs.h # define __glibc_has_attribute(attr) __has_attribute (attr)
__glibc_has_attribute   46 maint/gnulib/lib/cdefs.h # define __glibc_has_attribute(attr) 0
__glibc_has_attribute  147 maint/gnulib/lib/libc-config.h # undef __glibc_has_attribute