191 lines
3.2 KiB
Bash
191 lines
3.2 KiB
Bash
#!/bin/sh
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#
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# This file is in the public domain.
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ident='$FreeBSD$'
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#
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# usage: show { settings | options } ...
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#
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show()
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{
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mode=$1; shift
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case ${mode} in
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settings)
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yes_prefix=WITH
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no_prefix=WITHOUT
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;;
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options)
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yes_prefix=WITHOUT
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no_prefix=WITH
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;;
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*)
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echo "internal error" >/dev/stderr
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exit 1
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;;
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esac
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(
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cd ../../..
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make "$@" showconfig SRCCONF=/dev/null __MAKE_CONF=/dev/null
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) |
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while read var _ val; do
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opt=${var#MK_}
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case ${val} in
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yes)
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echo ${yes_prefix}_${opt}
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;;
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no)
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echo ${no_prefix}_${opt}
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;;
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*)
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echo "make showconfig broken" >/dev/stderr
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exit 1
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;;
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esac
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done
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}
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main()
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{
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trap 'rm -f _config _config2 _deps' exit
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ident=${ident#$}
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ident=${ident% $}
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fbsdid='$'FreeBSD'$'
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cat <<EOF
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.\" DO NOT EDIT-- this file is automatically generated.
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.\" from ${ident}
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.\" ${fbsdid}
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.Dd $(LC_TIME=C date +'%B %e, %Y')
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.Dt SRC.CONF 5
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.Os
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.Sh NAME
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.Nm src.conf
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.Nd "source build options"
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.Sh DESCRIPTION
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The
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.Nm
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file contains settings that will apply to every build involving the
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.Fx
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source tree; see
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.Xr build 7 .
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.Pp
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The
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.Nm
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file uses the standard makefile syntax.
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However,
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.Nm
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should not specify any dependencies to
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.Xr make 1 .
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Instead,
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.Nm
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is to set
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.Xr make 1
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variables that control the aspects of how the system builds.
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.Pp
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The default location of
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.Nm
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is
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.Pa /etc/src.conf ,
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though an alternative location can be specified in the
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.Xr make 1
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variable
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.Va SRCCONF .
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Overriding the location of
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.Nm
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maybe necessary if the system-wide settings are not suitable
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for a particular build.
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For instance, setting
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.Va SRCCONF
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to
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.Pa /dev/null
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effectively resets all build controls to their defaults.
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.Pp
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The only purpose of
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.Nm
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is to control the compilation of the
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.Fx
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source code, which is usually located in
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.Pa /usr/src .
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As a rule, the system administrator creates
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.Nm
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when the values of certain control variables need to be changed
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from their defaults.
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.Pp
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In addition, control variables can be specified
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for a particular build via the
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.Fl D
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option of
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.Xr make 1
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or in environment; see
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.Xr environ 7 .
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.Pp
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The values of variables are ignored regardless of their setting;
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even if they would be set to
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.Dq Li FALSE
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or
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.Dq Li NO .
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Just the existence of an option will cause
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it to be honoured by
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.Xr make 1 .
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.Pp
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The following list provides a name and short description for variables
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that can be used for source builds.
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.Bl -tag -width indent
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EOF
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show settings |sort >_config
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show options |
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while read opt; do
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if [ -f ${opt} ]; then
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cat <<EOF
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.It Va ${opt}
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EOF
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sed -e's/\$\(FreeBSD: .*\) \$/from \1/' ${opt}
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else
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echo "no description found for ${opt}, skipping" >/dev/stderr
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continue
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fi
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show settings -D${opt} |sort >_config2
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comm -13 _config _config2 |grep -v "^${opt}$" >_deps
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if [ -s _deps ]; then
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cat <<EOF
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When set, it also enforces the following options:
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.Pp
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.Bl -item -compact
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EOF
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cat _deps |while read opt2; do
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cat <<EOF
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.It
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.Va ${opt2}
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EOF
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done
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cat <<EOF
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.El
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EOF
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fi
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done
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cat <<EOF
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.El
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.Sh FILES
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.Bl -tag -compact
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.It Pa /etc/src.conf
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.It Pa /usr/share/mk/bsd.own.mk
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.El
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.Sh SEE ALSO
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.Xr make 1 ,
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.Xr make.conf 5 ,
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.Xr build 7 ,
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.Xr ports 7
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.Sh HISTORY
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The
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.Nm
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file appeared in
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.Fx 7.0 .
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.Sh AUTHORS
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This manual page was autogenerated.
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EOF
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}
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main
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