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include-main.mk revision 1.5 
      1 # $NetBSD: include-main.mk,v 1.5 2020/09/05 18:18:05 rillig Exp $
      2 #
      3 # Until 2020-09-05, the .INCLUDEDFROMFILE magic variable did not behave
      4 # as described in the manual page.
      5 #
      6 # The manual page says that it is the "filename of the file this Makefile
      7 # was included from", while before 2020-09-05 it was the "filename in which
      8 # the latest .include happened". See parse.c, function ParseSetIncludeFile.
      9 #
     10 # Since 2020-09-05, the .INCLUDEDFROMDIR and .INCLUDEDFROMFILE variables
     11 # properly handle nested includes and even .for loops.
     12 
     13 .if !defined(.INCLUDEDFROMFILE)
     14 .  info main-before-ok
     15 .else
     16 .  warning main-before-fail(${.INCLUDEDFROMFILE})
     17 .endif
     18 
     19 .for i in once
     20 .  if !defined(${.INCLUDEDFROMFILE})
     21 .    info main-before-for-ok
     22 .  else
     23 .    warning main-before-for-fail(${.INCLUDEDFROMFILE})
     24 .  endif
     25 .endfor
     26 
     27 .include "include-sub.mk"
     28 
     29 .if !defined(.INCLUDEDFROMFILE)
     30 .  info main-after-ok
     31 .else
     32 .  warning main-after-fail(${.INCLUDEDFROMFILE})
     33 .endif
     34 
     35 .for i in once
     36 .  if !defined(${.INCLUDEDFROMFILE})
     37 .    info main-after-for-ok
     38 .  else
     39 .    warning main-after-for-fail(${.INCLUDEDFROMFILE})
     40 .  endif
     41 .endfor
     42 
     43 all:	# nothing
     44