diff options
Diffstat (limited to 'make.texinfo')
| -rw-r--r-- | make.texinfo | 92 |
1 files changed, 70 insertions, 22 deletions
diff --git a/make.texinfo b/make.texinfo index 175493a..6b16027 100644 --- a/make.texinfo +++ b/make.texinfo @@ -8,10 +8,10 @@ @c FSF publishers: format makebook.texi instead of using this file directly. @set RCSID $Id$ -@set EDITION 0.54 -@set VERSION 3.78.1 -@set UPDATED 09 September 1999 -@set UPDATE-MONTH September 1999 +@set EDITION 0.55 +@set VERSION 3.79 +@set UPDATED 04 April 2000 +@set UPDATE-MONTH April 2000 @comment The ISBN number might need to change on next publication. @set ISBN 1-882114-80-9 @c CHANGE THIS BEFORE PRINTING AGAIN! --psmith 16jul98 @@ -37,7 +37,7 @@ and issues the commands to recompile them. This is Edition @value{EDITION}, last updated @value{UPDATED}, of @cite{The GNU Make Manual}, for @code{make}, Version @value{VERSION}. -Copyright (C) 1988, '89, '90, '91, '92, '93, '94, '95, '96, '97, '98, '99 +Copyright (C) 1988, '89, '90, '91, '92, '93, '94, '95, '96, '97, '98, '99, 2000 Free Software Foundation, Inc. Permission is granted to make and distribute verbatim copies of @@ -73,7 +73,7 @@ by the Free Software Foundation. @author Richard M. Stallman and Roland McGrath @page @vskip 0pt plus 1filll -Copyright @copyright{} 1988, '89, '90, '91, '92, '93, '94, '95, '96, '97, '98 +Copyright @copyright{} 1988, '89, '90, '91, '92, '93, '94, '95, '96, '97, '98, '99, 2000 Free Software Foundation, Inc. @sp 2 Published by the Free Software Foundation @* @@ -134,7 +134,7 @@ This manual describes @code{make} and contains the following chapters:@refill * Missing:: What GNU @code{make} lacks from other @code{make}s. * Makefile Conventions:: Conventions for makefiles in GNU programs. * Quick Reference:: A quick reference for experienced users. -* Make Errors:: A list of common errors generated by @code{make}. +* Error Messages:: A list of common errors generated by @code{make}. * Complex Makefile:: A real example of a straightforward, but nontrivial, makefile. * Concept Index:: Index of Concepts @@ -2479,7 +2479,7 @@ Sub-@code{make}}. If @code{.NOTPARALLEL} is mentioned as a target, then this invocation of @code{make} will be run serially, even if the @samp{-j} option is given. Any recursively invoked @code{make} command will still be run in -parallel if its makefile doesn't contain this target. Any prerequisites +parallel (unless its makefile contains this target). Any prerequisites on this target are ignored. @end table @@ -5854,8 +5854,7 @@ ending with word @var{e} (inclusive). The legitimate values of @var{s} and @var{e} start from 1. If @var{s} is bigger than the number of words in @var{text}, the value is empty. If @var{e} is bigger than the number of words in @var{text}, words up to the end of @var{text} are returned. -If @var{s} is greater than @var{e}, @code{make} swaps them for you. For -example, +If @var{s} is greater than @var{e}, nothing is returned. For example, @example $(wordlist 2, 3, foo bar baz) @@ -6060,6 +6059,12 @@ If @var{variable} is the name of a builtin function, the builtin function is always invoked (even if a @code{make} variable by that name also exists). +The @code{call} function expands the @var{param} arguments before +assigning them to temporary variables. This means that @var{variable} +values containing references to builtin functions that have special +expansion rules, like @code{foreach} or @code{if}, may not work as you +expect. + Some examples may make this clearer. This macro simply reverses its arguments: @@ -6067,12 +6072,11 @@ This macro simply reverses its arguments: @smallexample reverse = $(2) $(1) -foo = a b -bar = $(call reverse,$(foo)) +foo = $(call reverse,a,b) @end smallexample @noindent -Here @var{bar} will contain @samp{b a}. +Here @var{foo} will contain @samp{b a}. This one is slightly more interesting: it defines a macro to search for the first instance of a program in @code{PATH}: @@ -6803,8 +6807,6 @@ This is typically used with recursive invocations of @code{make} @item -d @cindex @code{-d} -@itemx --debug -@cindex @code{--debug} @c Extra blank line here makes the table look better. Print debugging information in addition to normal processing. The @@ -6812,7 +6814,46 @@ debugging information says which files are being considered for remaking, which file-times are being compared and with what results, which files actually need to be remade, which implicit rules are considered and which are applied---everything interesting about how -@code{make} decides what to do. +@code{make} decides what to do. The @code{-d} option is equivalent to +@samp{--debug=a} (see below). + +@item --debug[=@var{options}] +@cindex @code{--debug} +@c Extra blank line here makes the table look better. + +Print debugging information in addition to normal processing. Various +levels and types of output can be chosen. With no arguments, print the +``basic'' level of debugging. Possible arguments are below; only the +first character is considered, and values must be comma- or +space-separated. + +@table @code +@item a@var{ll} +All types of debugging output is enabled. This is equivalent to using +@samp{-d}. + +@item b@var{asic} +Basic debugging prints each target that was found to be out-of-date, and +whether the build was successful or not. + +@item v@var{erbose} +A level above @samp{basic}; includes messages about which makefiles were +parsed, prerequisites that did not need to be rebuilt, etc. This option +also enables @samp{basic} messages. + +@item i@var{mplicit} +Prints messages describing the implicit rule searches for each target. +This option also enables @samp{basic} messages. + +@item j@var{obs} +Prints messages giving details on the invocation of specific subcommands. + +@item m@var{akefile} +By default, the above messages are not enabled while trying to remake +the makefiles. This option enables messages while rebuilding makefiles, +too. Note that the @samp{all} option does enable this option. This +option also enables @samp{basic} messages. +@end table @item -e @cindex @code{-e} @@ -6857,7 +6898,7 @@ searched in the order specified. @item -j [@var{jobs}] @cindex @code{-j} -@itemx --jobs=[@var{jobs}] +@itemx --jobs[=@var{jobs}] @cindex @code{--jobs} Specifies the number of jobs (commands) to run simultaneously. With no argument, @code{make} runs as many jobs simultaneously as possible. If @@ -6920,7 +6961,9 @@ reading the makefiles; then execute as usual or as otherwise specified. This also prints the version information given by the @samp{-v} switch (see below). To print the data base without trying to remake any files, use @w{@samp{make -qp}}. To print the data base of predefined rules and -variables, use @w{@samp{make -p -f /dev/null}}. +variables, use @w{@samp{make -p -f /dev/null}}. The data base output +contains filename and linenumber information for command and variable +definitions, so it can be a useful debugging tool in complex environments. @item -q @cindex @code{-q} @@ -9107,7 +9150,7 @@ special treatment. @comment included by standards.texi. @include make-stds.texi -@node Quick Reference, Make Errors, Makefile Conventions, Top +@node Quick Reference, Error Messages, Makefile Conventions, Top @appendix Quick Reference This appendix summarizes the directives, text manipulation functions, @@ -9402,6 +9445,11 @@ The flags given to @code{make}. You can set this in the environment or a makefile to set flags.@* @xref{Options/Recursion, ,Communicating Options to a Sub-@code{make}}. +It is @emph{never} appropriate to use @code{MAKEFLAGS} directly on a +command line: its contents may not be quoted correctly for use in the +shell. Always allow recursive @code{make}'s to obtain these values +through the environment from its parent. + @item MAKECMDGOALS The targets given to @code{make} on the command line. Setting this @@ -9425,11 +9473,11 @@ order.@* @xref{Libraries/Search, ,Directory Search for Link Libraries}. @end table -@node Make Errors, Complex Makefile, Quick Reference, Top +@node Error Messages, Complex Makefile, Quick Reference, Top @comment node-name, next, previous, up @appendix Errors Generated by Make -Here is a list of the most common errors you might see generated by +Here is a list of the more common errors you might see generated by @code{make}, and some information about what they mean and how to fix them. @@ -9575,7 +9623,7 @@ sequential manner. @end table -@node Complex Makefile, Concept Index, Make Errors, Top +@node Complex Makefile, Concept Index, Error Messages, Top @appendix Complex Makefile Example Here is the makefile for the GNU @code{tar} program. This is a |