it's not clear that -O3 helps them, and gcc seems to have floating
point optimization bugs that introduce additional failures when -O3 is
used on some of these files.
esac
test "$optimize" = no || tryflag CFLAGS_AUTO -Os || tryflag CFLAGS_AUTO -O2
-test "$optimize" = yes && optimize="internal,malloc,math,string"
+test "$optimize" = yes && optimize="internal,malloc,string"
if fnmatch 'no|size' "$optimize" ; then :
else