[Bug c/47330] libdecnumber/Makefile.in overrides CFLAGS set by sub make invocation

[sch...@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47330

--- Comment #3 from Andreas Schwab <sch...@linux-m68k.org> 2011-01-17 16:25:25 
UTC ---
Those who ignore libtool are forced to reimplement it.