__glibc_clang_prereq   66 maint/gnulib/lib/libc-config.h #   define __glibc_clang_prereq(maj, min) \
__glibc_clang_prereq   69 maint/gnulib/lib/libc-config.h #   define __glibc_clang_prereq(maj, min) \
__glibc_clang_prereq   73 maint/gnulib/lib/libc-config.h #  define __glibc_clang_prereq(maj, min) 0