#							-*- Autotest -*-

AT_BANNER([Executables (autoheader, autoupdate...).])

# Copyright 2000, 2001 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.


## ----------------------------- ##
## Syntax of the shell scripts.  ##
## ----------------------------- ##

# We use `/bin/sh -n script' to check that there are no syntax errors
# in the scripts.  Although incredible, there are /bin/sh that go into
# endless loops with `-n', e.g., SunOS's:
#
#   $ uname -a
#   SunOS ondine 4.1.3 2 sun4m unknown
#   $ cat endless.sh
#   while false
#   do
#     :
#   done
#   exit 0
#   $ time sh endless.sh
#   sh endless.sh  0,02s user 0,03s system 78% cpu 0,064 total
#   $ time sh -nx endless.sh
#   ^Csh -nx endless.sh  3,67s user 0,03s system 63% cpu 5,868 total
#
# So before using `/bin/sh -n' to check our scripts, we first check
# that `/bin/sh -n' is not broken to death.

AT_SETUP([Syntax of the shell scripts])

# A script that never returns.  We don't care that it never returns,
# broken /bin/sh loop equally with `false', but it makes it easier to
# test the robustness in a good environment: just remove the `-n'.
AT_DATA([endless.sh],
[[while :
do
  :
done
]])

# A script in charge of testing `/bin/sh -n'.
AT_DATA([syntax.sh],
[[(/bin/sh -n endless.sh) &
sleep 2
if kill $! >/dev/null 2>&1; then
  # We managed to kill the child, which means that we probably
  # can't trust `/bin/sh -n', hence the test failed.
  exit 77
fi
]])

# If we can't trust sh, just skip.
AT_CHECK([/bin/sh ./syntax.sh])

# Specify the path to the tool, some shells don't honor PATH when
# running `sh PROG'.

AT_CHECK([/bin/sh -n $abs_top_builddir/bin/autoconf],   0)

# These are not built, they are in the src tree.
AT_CHECK([/bin/sh -n $abs_top_srcdir/config/install-sh], 0)
AT_CHECK([/bin/sh -n $abs_top_srcdir/config/mkinstalldirs], 0)
AT_CHECK([/bin/sh -n $abs_top_srcdir/config/missing], 0)

AT_CLEANUP




## ---------------------------- ##
## Syntax of the Perl scripts.  ##
## ---------------------------- ##

AT_SETUP([Syntax of the Perl scripts])

# Perl says things like:
# | % perl -c ./autom4te
# | ./autom4te syntax OK
# Ignore it, it might change between releases.
m4_define([AT_CHECK_PERL_SYNTAX],
[AT_CHECK([autom4te_perllibdir=$abs_top_srcdir/lib $PERL -c $abs_top_builddir/bin/$1],
          0, [], [ignore])])

AT_CHECK_PERL_SYNTAX([autoheader])
AT_CHECK_PERL_SYNTAX([autom4te])
AT_CHECK_PERL_SYNTAX([autoreconf])
AT_CHECK_PERL_SYNTAX([autoscan])
AT_CHECK_PERL_SYNTAX([autoupdate])
AT_CHECK_PERL_SYNTAX([ifnames])

AT_CLEANUP





## ------------------ ##
## autoconf --trace.  ##
## ------------------ ##


# autoconf --trace: user macros
# -----------------------------
AT_SETUP([autoconf --trace: user macros])


m4_pattern_allow([^m4_(define|shift)$])
AT_DATA([configure.ac],
[[m4_define([active], [ACTIVE])
m4_define([TRACE1], [TRACE2(m4_shift($@))])
m4_define([TRACE2], [[$2], $1])

# No arguments.
TRACE1
TRACE2

# With arguments, single line.
TRACE1(foo, bar, baz)
TRACE1(foo, TRACE1(bar, baz))
TRACE1(foo, active, baz)
TRACE1(foo, [active], TRACE1(active, [active]))

# With arguments, multiple lines.
TRACE1(foo
bar,
bar
foo)
]])

# Several --traces.
AT_CHECK_AUTOCONF([-t TRACE1 -t TRACE2], 0,
[[configure.ac:6:TRACE1:
configure.ac:6:TRACE2:
configure.ac:7:TRACE2:
configure.ac:10:TRACE1:foo:bar:baz
configure.ac:10:TRACE2:bar:baz
configure.ac:11:TRACE1:bar:baz
configure.ac:11:TRACE2:baz
configure.ac:11:TRACE1:foo::baz
configure.ac:11:TRACE2::baz
configure.ac:12:TRACE1:foo:ACTIVE:baz
configure.ac:12:TRACE2:ACTIVE:baz
configure.ac:13:TRACE1:ACTIVE:active
configure.ac:13:TRACE2:active
configure.ac:13:TRACE1:foo:active::ACTIVE
configure.ac:13:TRACE2:active::ACTIVE
configure.ac:19:TRACE1:foo bar:bar foo
configure.ac:19:TRACE2:bar foo
]])

# Several line requests.
AT_CHECK_AUTOCONF([[-t TRACE1:'
[$1], [$2], [$3].']], 0,
[[
[], [], [].

[foo], [bar], [baz].

[bar], [baz], [].

[foo], [], [baz].

[foo], [ACTIVE], [baz].

[ACTIVE], [active], [].

[foo], [active], [].

[foo
bar], [bar
foo], [].
]])

# ${sep}@.
AT_CHECK_AUTOCONF([-t TRACE2:'${)===(}@'], 0,
[[[]
[]
[bar])===([baz]
[baz]
[])===([baz]
[ACTIVE])===([baz]
[active]
[active])===([])===([ACTIVE]
[bar
foo]
]])

AT_CLEANUP


# autoconf --trace: builtins
# --------------------------
AT_SETUP([autoconf --trace: builtins])

AT_DATA([configure.ac],
[[define([active], [ACTIVE])
]])

AT_CHECK_AUTOCONF([[-t define | sed -n '$p']],
         0,
[[configure.ac:1:define:active:ACTIVE
]])

# FIXME: Without `$1' the following test dies.  Groumphf, once again to
# dive into obscure feature interaction...
# Note that using `-i' means we need the *.m4 files, not the *.m4f files,
# hence we need srcdir, not builddir.
AT_CHECK_AUTOCONF([[-t define:'$1' -i| sed -n '$p']],
         0,
[[active
]])

AT_CLEANUP



## ---------------------------- ##
## autoconf: forbidden tokens.  ##
## ---------------------------- ##


# autoconf: forbidden tokens, basic
# ---------------------------------
AT_SETUP([autoconf: forbidden tokens, basic])

AT_DATA_M4SH([configure.ac],
[[AS_INIT
m4_foo
_m4_bar
AS_FOO
_AS_BAR
[dnl]
]])

AT_DATA_M4SH([experr],
[[configure.ac:2: error: possibly undefined macro: m4_foo
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:3: error: possibly undefined macro: _m4_bar
configure.ac:4: error: possibly undefined macro: AS_FOO
configure.ac:5: error: possibly undefined macro: _AS_BAR
configure.ac:6: error: possibly undefined macro: dnl
]])

AT_CHECK_AUTOCONF([], 1, [], experr)

AT_CLEANUP


# autoconf: forbidden tokens, exceptions
# --------------------------------------
AT_SETUP([autoconf: forbidden tokens, exceptions])

AT_DATA_M4SH([configure.ac],
[[AS_INIT

# This is allowed in spite of the name.
# It is on purpose that we check the case where there are several
# tokens on the same line.
m4_pattern_allow([^AS_ALLOWED$])
NOT_AS_ALLOWED AS_ALLOWED AS_ALLOWED_NOT

# Test forbidding.
m4_pattern_forbid([^FORBIDDEN$])
NOT_FORBIDDEN FORBIDDEN FORBIDDEN_NOT

# Test Autoconf's patterns.
AS_THIS_IS_INVALID and _AS_THIS_IS_INVALID_TOO
BUT_AZ_THIS_IS_NOT ALTHOUGH_AS_THIS_IS
# This is legal, although there is `AS_DEFINE' in there.
BAS_DEFINE
# AS_THIS_IS_A_COMMENT so just shut up.
It would be very bad if Autoconf forgot to expand [AS_]INIT!
]])

AT_DATA_M4SH([experr],
[[configure.ac:1: error: possibly undefined macro: AS_INIT
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:7: error: possibly undefined macro: AS_ALLOWED_NOT
configure.ac:10: error: possibly undefined macro: FORBIDDEN
configure.ac:14: error: possibly undefined macro: AS_THIS_IS_INVALID
configure.ac:14: error: possibly undefined macro: _AS_THIS_IS_INVALID_TOO
]])

AT_CHECK_AUTOCONF([], 1, [], [experr])

AT_CLEANUP





## --------- ##
## ifnames.  ##
## --------- ##

AT_SETUP([ifnames])

AT_DATA([iftest1.c],
[[#ifdef DEF1
#ifndef DEF2
#if !defined(DEF3) && defined(DEF4) /* but not defined(DEF5) */
    # if SPACES
	#	if	TABS
/* #if C_COMMENTS */
// #if CXX_COMMENTS
#if LINE1 = \
LINE2
#if (VAL1*VAL2)==VAL3+VAL4 /* Not VAL5 !!! */
]])

AT_DATA([iftest2.c],
[[#ifdef IFTEST2
#if VAL1
]])

AT_CHECK([ifnames iftest1.c iftest2.c], 0,
[DEF1 iftest1.c
DEF2 iftest1.c
DEF3 iftest1.c
DEF4 iftest1.c
IFTEST2 iftest2.c
LINE1 iftest1.c
LINE2 iftest1.c
SPACES iftest1.c
TABS iftest1.c
VAL1 iftest1.c iftest2.c
VAL2 iftest1.c
VAL3 iftest1.c
VAL4 iftest1.c
], [])

AT_CLEANUP



## ------------ ##
## autoheader.  ##
## ------------ ##

# autoheader is intensively used in its modern form throughout this
# test suite.  But we also have to check that acconfig.h still works.
# autoheader uses autoconf --trace, so traces first.

AT_SETUP([autoheader])

AT_DATA([acconfig.h],
[[/* Define this to whatever you want. */
#undef this
]])


# 1. Check that `acconfig.h' is still honored.
AT_DATA([configure.ac],
[[AC_INIT
AC_CONFIG_HEADERS(config.h:config.hin)
AC_DEFINE(this, "whatever you want.")
]])

AT_CHECK_AUTOHEADER([], [], [], [ignore])
AT_CHECK([cat config.hin], 0,
[[/* config.hin.  Generated from configure.ac by autoheader.  */
/* Define this to whatever you want. */
#undef this

/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT

/* Define to the full name of this package. */
#undef PACKAGE_NAME

/* Define to the full name and version of this package. */
#undef PACKAGE_STRING

/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME

/* Define to the version of this package. */
#undef PACKAGE_VERSION
]])


# 2. Check that missing templates are a fatal error.
AT_DATA([configure.ac],
[[AC_INIT
AC_CONFIG_HEADERS(config.h:config.hin)
AC_DEFINE(that, "whatever you want.")
]])

# The test suite goes too fast for the cache time stamps...
# Pass --force.
AT_CHECK_AUTOHEADER([--force], [1], [], [ignore])


# 3. Check TOP and BOTTOM.
AT_DATA([acconfig.h],
[[/* Top from acconfig.h. */
@TOP@
/* Middle from acconfig.h. */
@BOTTOM@
/* Bottom from acconfig.h. */
]])

AT_DATA([configure.ac],
[[AC_INIT
AC_CONFIG_HEADERS(config.h:config.hin)
AH_TOP([Top1 from configure.ac.])
AH_TOP([Top2 from configure.ac.])
AH_VERBATIM([Middle], [Middle from configure.ac.])
AH_BOTTOM([Bottom1 from configure.ac.])
AH_BOTTOM([Bottom2 from configure.ac.])
]])


# Yes, that's right: the `middle' part of `acconfig.h' is still before
# the AH_TOP part.  But so what, you're not supposed to use the two
# together.
# Ignore STDERR which is the longuish complaint against autoheader junk
# files.
AT_CHECK_AUTOHEADER([--force], [], [], [ignore])
AT_CHECK([cat config.hin], 0,
[[/* config.hin.  Generated from configure.ac by autoheader.  */
/* Top from acconfig.h. */
/* Middle from acconfig.h. */

Top1 from configure.ac.

Top2 from configure.ac.

Middle from configure.ac.

/* Define to the address where bug reports for this package should be sent. */
#undef PACKAGE_BUGREPORT

/* Define to the full name of this package. */
#undef PACKAGE_NAME

/* Define to the full name and version of this package. */
#undef PACKAGE_STRING

/* Define to the one symbol short name of this package. */
#undef PACKAGE_TARNAME

/* Define to the version of this package. */
#undef PACKAGE_VERSION

Bottom1 from configure.ac.

Bottom2 from configure.ac.
/* Bottom from acconfig.h. */
]])

AT_CLEANUP




## ------------ ##
## autoupdate.  ##
## ------------ ##

# Check that AC_CANONICAL_SYSTEM and AC_OUTPUT are properly updated.
AT_SETUP([autoupdate])

AT_DATA([configure.ac],
[[AC_INIT(Test, 1.0)
AC_CANONICAL_SYSTEM
# The doc says 27 is a valid fubar.
fubar=27
AC_OUTPUT(Makefile, echo $fubar, fubar=$fubar)
]])

AT_DATA([expout],
[[AC_INIT([Test],[1.0])
AC_CANONICAL_TARGET([])
# The doc says 27 is a valid fubar.
fubar=27
AC_CONFIG_FILES([Makefile])
AC_CONFIG_COMMANDS([default],[[echo $fubar]],[[fubar=$fubar]])
AC_OUTPUT
]])

# Checking `autoupdate'.
AT_CHECK_AUTOUPDATE
AT_CHECK([cat configure.ac], 0, [expout])
# Checking that `autoupdate' is idempotent
AT_CHECK([autoupdate], 0, [],
         [autoupdate: `configure.ac' is unchanged
])
AT_CHECK([cat configure.ac], 0, [expout])

AT_CLEANUP(configure.ac~)


# autoupdating AC_LINK_FILES
# --------------------------
AT_SETUP([autoupdating AC_LINK_FILES])

AT_DATA([configure.ac],
[[AC_INIT
AC_LINK_FILES(dst1 dst2, src1 src2)
AC_OUTPUT
]])

AT_DATA([dst1], dst1
)
AT_DATA([dst2], dst2
)

# Checking `autoupdate'.
AT_CHECK_AUTOUPDATE
AT_CHECK_AUTOCONF
AT_CHECK_CONFIGURE
AT_CHECK([cat src1], 0, [dst1
])
AT_CHECK([cat src2], 0, [dst2
])

AT_CLEANUP(src1 src2 configure.ac~)


# autoupdating AC_PREREQ
# ----------------------
AT_SETUP([autoupdating AC_PREREQ])

# Produce `AC_PREREQ(<AUTOUPDATE VERSION>)'.
AT_CHECK([autoupdate --version | sed 's/.*) //;q'], 0, [stdout])
autoupdate_version=`cat stdout`
echo "AC_PREREQ($autoupdate_version)" >expout

AT_CHECK([echo "AC_PREREQ(1.0)" | autoupdate -],
         0, [expout], [])

AT_CHECK([echo "AC_PREREQ($autoupdate_version)" | autoupdate -],
         0, [expout], [])

AT_CHECK([echo "AC_PREREQ(999.99)" | autoupdate -],
         1, [], [ignore])

AT_CLEANUP
