test $$skip_next = yes && { skip_next=no; continue; }; \
case $$flg in \
*=*|--*) continue;; \
+##
## GNU make 3.83 has changed the format of $MFLAGS, and removed the space
## between an option and its argument (e.g., from "-I dir" to "-Idir").
-## So we need to handle both formats.
-## TODO: we might need to handle similar other cases as well; but let's
-## wait until the need arises.
+## So we need to handle both formats, at least for options valid in GNU
+## make. OTOH, BSD make formats $(MAKEFLAGS) by separating all options,
+## and separating any option from its argument, so things are easier
+## there.
+##
+## For GNU make and BSD make.
-*I) strip_trailopt 'I'; skip_next=yes;; \
-*I?*) strip_trailopt 'I';; \
+## For GNU make >= 3.83.
+ -*O) strip_trailopt 'O'; skip_next=yes;; \
+ -*O?*) strip_trailopt 'O';; \
+## For GNU make (possibly overkill, this one).
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+## For BSD make.
+ -[dEDm]) skip_next=yes;; \
+## For NetBSD make.
+ -[JT]) skip_next=yes;; \
esac; \
case $$flg in \
*$$target_option*) has_opt=yes; break;; \