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# serial 3
# Copyright © 2005 Scott James Remnant <scott@netsplit.com>
# Copyright © 2007 Frank Lichtenheld <djpig@debian.org>
# Copyright © 2007-2023 Guillem Jover <guillem@debian.org>
# DPKG_PROG_SHELL
# ---------------
# Locate a POSIX shell interpreter to use in dpkg. It should support
# passing -- after -c for robust argument parsing.
AC_DEFUN([DPKG_PROG_SHELL], [
AC_ARG_VAR([DPKG_SHELL], [default POSIX shell interpreter used by dpkg])
AC_CACHE_CHECK([for a POSIX sh that supports -- after -c], [ac_cv_path_DPKG_SHELL], [
AC_PATH_PROGS_FEATURE_CHECK([DPKG_SHELL], [sh dash bsh ksh bash], [
shellcheck=$(test -x $ac_path_DPKG_SHELL && \
$ac_path_DPKG_SHELL -c -- "echo yes" 2>/dev/null)
AS_IF([test "x$shellcheck" = "xyes"], [
ac_cv_path_DPKG_SHELL="$(AS_BASENAME([$ac_path_DPKG_SHELL]))"
ac_path_DPKG_SHELL_found=:
])
], [
ac_cv_path_DPKG_SHELL=none
])
])
dnl We could not find any shell supporting --, fallback to sh.
AS_IF([test "$ac_cv_path_DPKG_SHELL" = "none"], [
DPKG_SHELL=sh
dpkg_shell_supports_dash_dash=0
], [
DPKG_SHELL=$ac_cv_path_DPKG_SHELL
dpkg_shell_supports_dash_dash=1
])
AC_SUBST([DPKG_DEFAULT_SHELL], [$DPKG_SHELL])
AC_DEFINE_UNQUOTED([DPKG_DEFAULT_SHELL], ["$DPKG_SHELL"],
[POSIX shell interpreter used by dpkg])
AC_DEFINE_UNQUOTED([HAVE_DPKG_SHELL_WITH_DASH_DASH],
[$dpkg_shell_supports_dash_dash],
[POSIX shell interpreter used by dpkg supports -- after -c])
])# DPKG_PROG_SHELL
# DPKG_PROG_PAGER
# ---------------
# Locate a pager program to use in dpkg, if none are found we default to cat.
AC_DEFUN([DPKG_PROG_PAGER], [
AC_ARG_VAR([DPKG_PAGER], [default pager program used by dpkg])
AC_CHECK_PROGS([DPKG_PAGER], [pager less more], [cat])
AC_SUBST([DPKG_DEFAULT_PAGER], [$DPKG_PAGER])
AC_DEFINE_UNQUOTED([DPKG_DEFAULT_PAGER], ["$DPKG_PAGER"],
[pager program used by dpkg])
])# DPKG_PROG_PAGER
# DPKG_PROG_PERL
# --------------
# Locate perl interpreter in the path
AC_DEFUN([DPKG_PROG_PERL], [
AC_ARG_VAR([PERL], [Perl interpreter])dnl
m4_define([_PERL_MIN_VERSION], [5.32.1])
AC_SUBST([PERL_MIN_VERSION], [_PERL_MIN_VERSION])
AC_CACHE_CHECK([for perl >= _PERL_MIN_VERSION], [ac_cv_path_PERL], [
AC_PATH_PROGS_FEATURE_CHECK([PERL], [perl], [
perlcheck=$(test -x $ac_path_PERL && \
$ac_path_PERL -MConfig -Mversion -e \
'my $r = qv("v$Config{version}") >= qv("_PERL_MIN_VERSION");
print "yes" if $r')
AS_IF([test "x$perlcheck" = "xyes"], [
ac_cv_path_PERL=$ac_path_PERL ac_path_PERL_found=:
])
], [
AC_MSG_ERROR([cannot find perl >= _PERL_MIN_VERSION])
])
])
AC_SUBST([PERL], [$ac_cv_path_PERL])
AC_ARG_VAR([PERL_LIBDIR], [Perl library directory])dnl
# Let the user override the variable.
AS_IF([test -z "$PERL_LIBDIR"], [
PERL_LIBDIR=$($PERL -MConfig -e \
'my $r = $Config{vendorlibexp};
$r =~ s/$Config{vendorprefixexp}/\$(prefix)/;
print $r')
])
DPKG_WITH_DIR([perllibdir], [${PERL_LIBDIR}],
[perl modules directory])
])# DPKG_PROG_PERL
# DPKG_PROG_PO4A
# --------------
AC_DEFUN([DPKG_PROG_PO4A], [
AC_REQUIRE([AM_NLS])
AC_REQUIRE([DPKG_PROG_PERL])
AC_ARG_VAR([PO4A], [po4a program])
m4_define([_PO4A_MIN_VERSION], [0.59])
AC_CACHE_CHECK([for po4a >= _PO4A_MIN_VERSION], [ac_cv_path_PO4A], [
AC_PATH_PROGS_FEATURE_CHECK([PO4A], [po4a], [
po4aversion=$(LC_ALL=C $ac_path_PO4A --version \
| $SED -ne 's/^po4a version \(.*\)\.$/\1/p')
AS_VERSION_COMPARE([$po4aversion], [_PO4A_MIN_VERSION],
[po4acheck=no], [po4acheck=yes], [po4acheck=yes])
AS_IF([test "x$po4acheck" = "xyes"], [
ac_cv_path_PO4A=$ac_path_PO4A ac_path_PO4A_found=:
])
], [
ac_cv_path_PO4A=no
])
])
AC_SUBST([PO4A], [$ac_cv_path_PO4A])
AS_IF([test "$USE_NLS" = "yes" && test "$ac_cv_path_PO4A" != "no"], [
USE_PO4A=yes
], [
USE_PO4A=no
])
AC_SUBST([USE_PO4A])
])# DPKG_PROG_PO4A
# DPKG_PROG_POD2MAN
# -----------------
AC_DEFUN([DPKG_PROG_POD2MAN], [
AC_ARG_VAR([POD2MAN], [pod2man program])
AC_CHECK_PROGS([POD2MAN], [pod2man])
AM_CONDITIONAL([BUILD_POD_DOC], [test "x$POD2MAN" != "x"])
])# DPKG_PROG_POD2MAN
# DPKG_PROG_TAR
# -------------
# Specify GNU tar program name to use by dpkg. On GNU systems this is
# usually simply tar, on BSD systems this is usually gnutar or gtar.
AC_DEFUN([DPKG_PROG_TAR], [
AC_ARG_VAR([TAR], [GNU tar program])
AC_CHECK_PROGS([TAR], [gnutar gtar tar], [tar])
AS_IF([! $TAR --version 2>/dev/null | grep -q '^tar (GNU tar)'], [
AC_MSG_ERROR([cannot find a GNU tar program])
])
AC_DEFINE_UNQUOTED([TAR], ["$TAR"], [GNU tar program])
])# DPKG_PROG_TAR
# DPKG_PROG_PATCH
# ---------------
# Specify GNU patch program name to use by dpkg-source. On GNU systems this
# is usually simply patch, on BSD systems this is usually gpatch.
# Even though most invocations would work with other patch implementations,
# currently only GNU patch is directory traversal resistant.
AC_DEFUN([DPKG_PROG_PATCH], [
AC_ARG_VAR([PATCH], [GNU patch program])
AC_CHECK_PROGS([PATCH], [gpatch patch], [patch])
AS_IF([! $PATCH --version 2>/dev/null | grep -q '^GNU patch'], [
AC_MSG_ERROR([cannot find a GNU patch program])
])
AC_DEFINE_UNQUOTED([PATCH], ["$PATCH"], [GNU patch program])
])# DPKG_PROG_PATCH
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