re PR libstdc++/17505 (<cmath> calls acosf(), ceilf(), and other functions missing from system libraries)


	PR libstdc++/17505
	* config/linker-map.gnu: Synchronize the current list of stub
	functions from libmath.

Co-Authored-By: Eric Botcazou <ebotcazou@libertysurf.fr>

From-SVN: r88540