Bug 216181 - make(1) -n is confused
Summary: make(1) -n is confused
Status: Closed Overcome By Events
Alias: None
Product: Base System
Classification: Unclassified
Component: bin (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-01-17 14:26 UTC by Poul-Henning Kamp
Modified: 2019-04-09 19:11 UTC (History)
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Description Poul-Henning Kamp freebsd_committer freebsd_triage 2017-01-17 14:26:22 UTC 
Make(1) with the -n argument seems to be confused, or at least
confusable:

    phk> make all

    phk> make -n all | wc -l
         176

    phk> gmake -n all
    gmake: Nothing to be done for 'all'.

    phk> make -n all | head -1
    cc -o lib/libvarnish/binary_heap.o [...]

    phk> make -n lib/libvarnish/binary_heap.o
    cc -o lib/libvarnish/binary_heap.o [...]

    phk> make  lib/libvarnish/binary_heap.o
    `lib/libvarnish/binary_heap.o' is up to date.

    phk> gmake -n lib/libvarnish/binary_heap.o
    gmake: 'lib/libvarnish/binary_heap.o' is up to date.

    phk> gmake lib/libvarnish/binary_heap.o
    gmake: 'lib/libvarnish/binary_heap.o' is up to date.

    phk> ls -l  lib/libvarnish/binary_heap.c
    -rw-rw-r--  1 phk  wheel  14505 Jan 16 13:12 lib/libvarnish/binary_heap.c

    phk> ls -l  lib/libvarnish/binary_heap.o
    -rw-rw-r--  1 phk  wheel  18160 Jan 17 14:05 lib/libvarnish/binary_heap.o

The makefile is huge (7k lines) but utterly trivial, being emitted by a program.