File: autoconf.info,  Node: VPATH and Double-colon,  Next: $< in Explicit Rules,  Prev: Variables listed in VPATH,  Up: VPATH and Make

12.18.2 ‘VPATH’ and Double-colon Rules
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With ancient versions of Sun ‘make’, any assignment to ‘VPATH’ causes
‘make’ to execute only the first set of double-colon rules.  However,
this problem is no longer of practical concern.