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(Commands): Add warning about "blank" line starting with a tab.

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This commit is contained in:
Roland McGrath 1994-10-17 00:02:27 +00:00
parent 0e352e4bf7
commit a543a2ae9f
1 changed files with 8 additions and 6 deletions
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14
make.texinfo
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@ -8,10 +8,10 @@
@c FSF publishers: format makebook.texi instead of using this file directly.
@set RCSID $Id$
@set EDITION 0.46
@set EDITION 0.47 DRAFT
@set VERSION 3.72 Beta
@set UPDATED 5 July 1994
@set UPDATE-MONTH July 1994
@set UPDATED 16 October 1994
@set UPDATE-MONTH October 1994
@set ISBN 1-882114-50-7
@c finalout
@ -2643,11 +2643,13 @@ with no further work from you. @xref{Remaking Makefiles}.
@cindex rule commands
@cindex writing rule commands
The commands of a rule consist of shell command lines to be executed one by
one. Each command line must start with a tab, except that the first
The commands of a rule consist of shell command lines to be executed one
by one. Each command line must start with a tab, except that the first
command line may be attached to the target-and-dependencies line with a
semicolon in between. Blank lines and lines of just comments may appear
among the command lines; they are ignored.
among the command lines; they are ignored. (But beware, an apparently
``blank'' line that begins with a tab is @emph{not} blank! It is an
empty command; @pxref{Empty Commands}.)
Users use many different shell programs, but commands in makefiles are
always interpreted by @file{/bin/sh} unless the makefile specifies