_GL_CONCAT         74 maint/gnulib/lib/stack.h #define _GL_STACK_PREFIX(name) _GL_CONCAT(GL_STACK_NAME, _GL_CONCAT(_, name))
_GL_CONCAT        170 maint/gnulib/lib/verify.h #define _GL_GENSYM(prefix) _GL_CONCAT (prefix, _GL_COUNTER)