xref: /openbsd/gnu/usr.bin/cvs/aclocal.m4 (revision 771fbea0)
1# aclocal.m4 generated automatically by aclocal 1.4e
2
3# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000
4# Free Software Foundation, Inc.
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14/* This program is free software; you can redistribute it and/or modify
15   it under the terms of the GNU General Public License as published by
16   the Free Software Foundation; either version 2, or (at your option)
17   any later version.
18
19   This program is distributed in the hope that it will be useful,
20   but WITHOUT ANY WARRANTY; without even the implied warranty of
21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22   GNU General Public License for more details.  */
23
24AC_DEFUN(ACX_WITH_GSSAPI,[
25#
26# Use --with-gssapi[=DIR] to enable GSSAPI support.
27#
28# defaults to enabled with DIR in default list below
29#
30# Search for /SUNHEA/ and read the comments about this default below.
31#
32AC_ARG_WITH([gssapi],
33	    [  --with-gssapi=value     GSSAPI directory],
34	    [acx_gssapi_withgssapi=$withval], [acx_gssapi_withgssapi=yes])dnl
35
36dnl
37dnl FIXME - cache withval and obliterate later cache values when options change
38dnl
39#
40# Try to locate a GSSAPI installation if no location was specified, assuming
41# GSSAPI was enabled (the default).
42#
43if test -n "$acx_gssapi_cv_gssapi"; then
44  # Granted, this is a slightly ugly way to print this info, but the
45  # AC_CHECK_HEADER used in the search for a GSSAPI installation makes using
46  # AC_CACHE_CHECK worse
47  AC_MSG_CHECKING([for GSSAPI])
48else :; fi
49AC_CACHE_VAL([acx_gssapi_cv_gssapi], [
50if test x$acx_gssapi_withgssapi = xyes; then
51  # --with but no location specified
52  # assume a gssapi.h or gssapi/gssapi.h locates our install.
53  #
54  # This isn't always strictly true.  For instance Solaris 7's SUNHEA (header)
55  # package installs gssapi.h whether or not the necessary libraries are
56  # installed.  I'm still not sure whether to consider this a bug.  The long
57  # way around is to not consider GSSPAI installed unless gss_import_name is
58  # found, but that brings up a lot of other hassles, like continuing to let
59  # gcc & ld generate the error messages when the user uses --with-gssapi=dir
60  # as a debugging aid.  The short way around is to disable GSSAPI by default,
61  # but I think Sun users have been faced with this for awhile and I haven't
62  # heard many complaints.
63  acx_gssapi_save_CPPFLAGS=$CPPFLAGS
64  for acx_gssapi_cv_gssapi in yes /usr/kerberos /usr/cygnus/kerbnet no; do
65    if test x$acx_gssapi_cv_gssapi = xno; then
66      break
67    fi
68    if test x$acx_gssapi_cv_gssapi = xyes; then
69      AC_CHECKING([for GSSAPI])
70    else
71      CPPFLAGS="$acx_gssapi_save_CPPFLAGS -I$acx_gssapi_cv_gssapi/include"
72      AC_CHECKING([for GSSAPI in $acx_gssapi_cv_gssapi])
73    fi
74    unset ac_cv_header_gssapi_h
75    unset ac_cv_header_gssapi_gssapi_h
76    AC_CHECK_HEADERS([gssapi.h gssapi/gssapi.h])
77    if test "$ac_cv_header_gssapi_h" = "yes" ||
78        test "$ac_cv_header_gssapi_gssapi_h" = "yes"; then
79      break
80    fi
81  done
82  CPPFLAGS=$acx_gssapi_save_CPPFLAGS
83else
84  acx_gssapi_cv_gssapi=$acx_gssapi_withgssapi
85fi
86AC_MSG_CHECKING([for GSSAPI])
87])dnl
88AC_MSG_RESULT([$acx_gssapi_cv_gssapi])
89
90#
91# Set up GSSAPI includes for later use.  We don't bother to check for
92# $acx_gssapi_cv_gssapi=no here since that will be caught later.
93#
94if test x$acx_gssapi_cv_gssapi = yes; then
95  # no special includes necessary
96  GSSAPI_INCLUDES=""
97else
98  # GSSAPI at $acx_gssapi_cv_gssapi (could be 'no')
99  GSSAPI_INCLUDES=" -I$acx_gssapi_cv_gssapi/include"
100fi
101
102#
103# Get the rest of the information CVS needs to compile with GSSAPI support
104#
105if test x$acx_gssapi_cv_gssapi != xno; then
106  # define HAVE_GSSAPI and set up the includes
107  AC_DEFINE([HAVE_GSSAPI],, [Define if you have GSSAPI with Kerberos version 5 available.])
108  includeopt=$includeopt$GSSAPI_INCLUDES
109
110  # locate any other headers
111  acx_gssapi_save_CPPFLAGS=$CPPFLAGS
112  CPPFLAGS=$CPPFLAGS$GSSAPI_INCLUDES
113  dnl We don't use HAVE_KRB5_H anywhere, but including it here might make it
114  dnl easier to spot errors by reading configure output
115  AC_CHECK_HEADERS([gssapi.h gssapi/gssapi.h gssapi/gssapi_generic.h krb5.h])
116  # And look through them for GSS_C_NT_HOSTBASED_SERVICE or its alternatives
117  AC_CACHE_CHECK([for GSS_C_NT_HOSTBASED_SERVICE], [acx_gssapi_cv_gss_c_nt_hostbased_service],
118   [acx_gssapi_cv_gss_c_nt_hostbased_service=no
119    if test "$ac_cv_header_gssapi_h" = "yes"; then
120      AC_EGREP_HEADER([GSS_C_NT_HOSTBASED_SERVICE], [gssapi.h],
121		      [acx_gssapi_cv_gss_c_nt_hostbased_service=yes],
122		      AC_EGREP_HEADER([gss_nt_service_name], [gssapi.h],
123				      [acx_gssapi_cv_gss_c_nt_hostbased_service=gss_nt_service_name]))
124    fi
125    if test $acx_gssapi_cv_gss_c_nt_hostbased_service = no &&
126        test "$ac_cv_header_gssapi_gssapi_h" = "yes"; then
127      AC_EGREP_HEADER([GSS_C_NT_HOSTBASED_SERVICE], [gssapi/gssapi.h],
128		      [acx_gssapi_cv_gss_c_nt_hostbased_service],
129		      AC_EGREP_HEADER([gss_nt_service_name], [gssapi/gssapi.h],
130				      [acx_gssapi_cv_gss_c_nt_hostbased_service=gss_nt_service_name]))
131    fi
132    if test $acx_gssapi_cv_gss_c_nt_hostbased_service = no &&
133        test "$ac_cv_header_gssapi_gssapi_generic_h" = "yes"; then
134      AC_EGREP_HEADER([GSS_C_NT_HOSTBASED_SERVICE], [gssapi/gssapi_generic.h],
135		      [acx_gssapi_cv_gss_c_nt_hostbased_service],
136		      AC_EGREP_HEADER([gss_nt_service_name], [gssapi/gssapi_generic.h],
137				      [acx_gssapi_cv_gss_c_nt_hostbased_service=gss_nt_service_name]))
138    fi])
139  if test $acx_gssapi_cv_gss_c_nt_hostbased_service != yes &&
140      test $acx_gssapi_cv_gss_c_nt_hostbased_service != no; then
141    # don't define for yes since that means it already means something and
142    # don't define for no since we'd rather the compiler catch the error
143    AC_DEFINE_UNQUOTED([GSS_C_NT_HOSTBASED_SERVICE], [$acx_gssapi_cv_gss_c_nt_hostbased_service],
144[Define to an alternative value if GSS_C_NT_HOSTBASED_SERVICE isn't defined
145in the gssapi.h header file.  MIT Kerberos 1.2.1 requires this.  Only relevant
146when using GSSAPI.])
147  fi
148  CPPFLAGS=$acx_gssapi_save_CPPFLAGS
149
150  # Expect the libs to be installed parallel to the headers
151  #
152  # We could try once with and once without, but I'm not sure it's worth the
153  # trouble.
154  if test x$acx_gssapi_cv_gssapi != xyes; then
155    if test -z "$LIBS"; then
156      LIBS="-L$acx_gssapi_cv_gssapi/lib"
157    else
158      LIBS="-L$acx_gssapi_cv_gssapi/lib $LIBS"
159    fi
160  else :; fi
161
162  dnl What happens if we want to enable, say, krb5 and some other GSSAPI
163  dnl authentication method at the same time?
164  #
165  # Some of the order below is particular due to library dependencies
166  #
167
168  #
169  # des			Heimdal K 0.3d, but Heimdal seems to be set up such
170  #			that it could have been installed from elsewhere.
171  #
172  AC_SEARCH_LIBS([des_set_odd_parity], [des])
173
174  #
175  # com_err		Heimdal K 0.3d
176  #
177  # com_err		MIT K5 v1.2.2-beta1
178  #
179  AC_SEARCH_LIBS([com_err], [com_err])
180
181  #
182  # asn1		Heimdal K 0.3d		-lcom_err
183  #
184  AC_SEARCH_LIBS([initialize_asn1_error_table_r], [asn1])
185
186  #
187  # resolv		required, but not installed by Heimdal K 0.3d
188  #
189  # resolv		MIT K5 1.2.2-beta1
190  # 			Linux 2.2.17
191  #
192  AC_SEARCH_LIBS([__dn_expand], [resolv])
193
194  #
195  # roken		Heimdal K 0.3d		-lresolv
196  #
197  AC_SEARCH_LIBS([roken_gethostbyaddr], [roken])
198
199  #
200  # k5crypto		MIT K5 v1.2.2-beta1
201  #
202  AC_SEARCH_LIBS([valid_enctype], [k5crypto])
203
204  #
205  # gen			? ? ?			Needed on Irix 5.3 with some
206  #			Irix 5.3		version of Kerberos.  I'm not
207  #						sure which since Irix didn't
208  #						get any testing this time
209  #						around.  Original comment:
210  #
211  # This is necessary on Irix 5.3, in order to link against libkrb5 --
212  # there, an_to_ln.o refers to things defined only in -lgen.
213  #
214  AC_SEARCH_LIBS([compile], [gen])
215
216  #
217  # krb5		? ? ?			-lgen -l???
218  #			Irix 5.3
219  #
220  # krb5		MIT K5 v1.1.1
221  #
222  # krb5		MIT K5 v1.2.2-beta1	-lcrypto -lcom_err
223  # 			Linux 2.2.17
224  #
225  # krb5		MIT K5 v1.2.2-beta1	-lcrypto -lcom_err -lresolv
226  #
227  # krb5		Heimdal K 0.3d		-lasn1 -lroken -ldes
228  #
229  AC_SEARCH_LIBS([krb5_free_context], [krb5])
230
231  #
232  # gssapi_krb5		Only lib needed with MIT K5 v1.2.1, so find it first in
233  #			order to prefer MIT Kerberos.  If both MIT & Heimdal
234  #			Kerberos are installed and in the path, this will leave
235  #			some of the libraries above in LIBS unnecessarily, but
236  #			noone would ever do that, right?
237  #
238  # gssapi_krb5		MIT K5 v1.2.2-beta1	-lkrb5
239  #
240  # gssapi		Heimdal K 0.3d		-lkrb5
241  #
242  AC_SEARCH_LIBS([gss_import_name], [gssapi_krb5 gssapi])
243fi
244])dnl
245
246# Do all the work for Automake.  This macro actually does too much --
247# some checks are only needed if your package does certain things.
248# But this isn't really a big deal.
249
250# serial 5
251
252# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
253# written in clear, in which case automake, when reading aclocal.m4,
254# will think it sees a *use*, and therefore will trigger all it's
255# C support machinery.  Also note that it means that autoscan, seeing
256# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
257
258
259# We require 2.13 because we rely on SHELL being computed by configure.
260AC_PREREQ([2.13])
261
262# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
263# -----------------------------------------------------------
264# If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED.
265# The purpose of this macro is to provide the user with a means to
266# check macros which are provided without letting her know how the
267# information is coded.
268# If this macro is not defined by Autoconf, define it here.
269ifdef([AC_PROVIDE_IFELSE],
270      [],
271      [define([AC_PROVIDE_IFELSE],
272              [ifdef([AC_PROVIDE_$1],
273                     [$2], [$3])])])
274
275
276# AM_INIT_AUTOMAKE(PACKAGE,VERSION, [NO-DEFINE])
277# ----------------------------------------------
278AC_DEFUN([AM_INIT_AUTOMAKE],
279[AC_REQUIRE([AC_PROG_INSTALL])dnl
280# test to see if srcdir already configured
281if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" &&
282   test -f $srcdir/config.status; then
283  AC_MSG_ERROR([source directory already configured; run \"make distclean\" there first])
284fi
285
286# Define the identity of the package.
287PACKAGE=$1
288AC_SUBST(PACKAGE)dnl
289VERSION=$2
290AC_SUBST(VERSION)dnl
291ifelse([$3],,
292[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
293AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])
294
295# Autoconf 2.50 wants to disallow AM_ names.  We explicitly allow
296# the ones we care about.
297ifdef([m4_pattern_allow],
298      [m4_pattern_allow([^AM_(C|CPP|CXX|OBJC|F|R|GCJ)FLAGS])])dnl
299
300# Some tools Automake needs.
301AC_REQUIRE([AM_SANITY_CHECK])dnl
302AC_REQUIRE([AC_ARG_PROGRAM])dnl
303AM_MISSING_PROG(ACLOCAL, aclocal)
304AM_MISSING_PROG(AUTOCONF, autoconf)
305AM_MISSING_PROG(AUTOMAKE, automake)
306AM_MISSING_PROG(AUTOHEADER, autoheader)
307AM_MISSING_PROG(MAKEINFO, makeinfo)
308AM_MISSING_PROG(AMTAR, tar)
309AM_MISSING_INSTALL_SH
310AM_PROG_INSTALL_STRIP
311# We need awk for the "check" target.  The system "awk" is bad on
312# some platforms.
313AC_REQUIRE([AC_PROG_AWK])dnl
314AC_REQUIRE([AC_PROG_MAKE_SET])dnl
315AC_REQUIRE([AM_PROG_ETAGS])dnl
316AC_REQUIRE([AM_DEP_TRACK])dnl
317AC_REQUIRE([AM_SET_DEPDIR])dnl
318AC_PROVIDE_IFELSE([AC_PROG_][CC],
319                  [AM_DEPENDENCIES(CC)],
320                  [define([AC_PROG_][CC],
321                          defn([AC_PROG_][CC])[AM_DEPENDENCIES(CC)])])dnl
322AC_PROVIDE_IFELSE([AC_PROG_][CXX],
323                  [AM_DEPENDENCIES(CXX)],
324                  [define([AC_PROG_][CXX],
325                          defn([AC_PROG_][CXX])[AM_DEPENDENCIES(CXX)])])dnl
326])
327
328#
329# Check to make sure that the build environment is sane.
330#
331
332# serial 3
333
334# AM_SANITY_CHECK
335# ---------------
336AC_DEFUN([AM_SANITY_CHECK],
337[AC_MSG_CHECKING([whether build environment is sane])
338# Just in case
339sleep 1
340echo timestamp > conftest.file
341# Do `set' in a subshell so we don't clobber the current shell's
342# arguments.  Must try -L first in case configure is actually a
343# symlink; some systems play weird games with the mod time of symlinks
344# (eg FreeBSD returns the mod time of the symlink's containing
345# directory).
346if (
347   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
348   if test "$[*]" = "X"; then
349      # -L didn't work.
350      set X `ls -t $srcdir/configure conftest.file`
351   fi
352   if test "$[*]" != "X $srcdir/configure conftest.file" \
353      && test "$[*]" != "X conftest.file $srcdir/configure"; then
354
355      # If neither matched, then we have a broken ls.  This can happen
356      # if, for instance, CONFIG_SHELL is bash and it inherits a
357      # broken ls alias from the environment.  This has actually
358      # happened.  Such a system could not be considered "sane".
359      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
360alias in your environment])
361   fi
362
363   test "$[2]" = conftest.file
364   )
365then
366   # Ok.
367   :
368else
369   AC_MSG_ERROR([newly created file is older than distributed files!
370Check your system clock])
371fi
372rm -f conftest*
373AC_MSG_RESULT(yes)])
374
375
376# serial 2
377
378# AM_MISSING_PROG(NAME, PROGRAM)
379# ------------------------------
380AC_DEFUN([AM_MISSING_PROG],
381[AC_REQUIRE([AM_MISSING_HAS_RUN])
382$1=${$1-"${am_missing_run}$2"}
383AC_SUBST($1)])
384
385
386# AM_MISSING_INSTALL_SH
387# ---------------------
388# Like AM_MISSING_PROG, but only looks for install-sh.
389AC_DEFUN([AM_MISSING_INSTALL_SH],
390[AC_REQUIRE([AM_MISSING_HAS_RUN])
391if test -z "$install_sh"; then
392   for install_sh in "$ac_aux_dir/install-sh" \
393                     "$ac_aux_dir/install.sh" \
394                     "${am_missing_run}${ac_auxdir}/install-sh";
395   do
396     test -f "$install_sh" && break
397   done
398   # FIXME: an evil hack: we remove the SHELL invocation from
399   # install_sh because automake adds it back in.  Sigh.
400   install_sh=`echo $install_sh | sed -e 's/\${SHELL}//'`
401fi
402AC_SUBST(install_sh)])
403
404
405# AM_MISSING_HAS_RUN
406# ------------------
407# Define MISSING if not defined so far and test if it supports --run.
408# If it does, set am_missing_run to use it, otherwise, to nothing.
409AC_DEFUN([AM_MISSING_HAS_RUN],
410[test x"${MISSING+set}" = xset ||
411  MISSING="\${SHELL} `CDPATH=:; cd $ac_aux_dir && pwd`/missing"
412# Use eval to expand $SHELL
413if eval "$MISSING --run true"; then
414  am_missing_run="$MISSING --run "
415else
416  am_missing_run=
417  am_backtick='`'
418  AC_MSG_WARN([${am_backtick}missing' script is too old or missing])
419fi
420])
421
422# AM_AUX_DIR_EXPAND
423
424# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
425# $ac_aux_dir to ${srcdir}/foo.  In other projects, it is set to `.'.
426# Of course, Automake must honor this variable whenever it call a tool
427# from the auxiliary directory.  The problem is that $srcdir (hence
428# $ac_aux_dir) can be either an absolute path or a path relative to
429# $top_srcdir or absolute, this depends on how configure is run.  This
430# is pretty anoying since it makes $ac_aux_dir quite unusable in
431# subdirectories: on the top source directory, any form will work
432# fine, but in subdirectories relative pat needs to be adapted.
433# - calling $top_srcidr/$ac_aux_dir/missing would success if $srcdir is
434#   relative, but fail if $srcdir is absolute
435# - conversly, calling $ax_aux_dir/missing would fail if $srcdir is
436#   absolute, and success on relative paths.
437#
438# Consequently, we define and use $am_aux_dir, the "always absolute"
439# version of $ac_aux_dir.
440
441AC_DEFUN([AM_AUX_DIR_EXPAND], [
442# expand $ac_aux_dir to an absolute path
443am_aux_dir=`CDPATH=:; cd $ac_aux_dir && pwd`
444])
445
446# One issue with vendor `install' (even GNU) is that you can't
447# specify the program used to strip binaries.  This is especially
448# annoying in cross=compiling environments, where the build's strip
449# is unlikely to handle the host's binaries.
450# Fortunately install-sh will honor a STRIPPROG variable, so if we ever
451# need to use a non standard strip, we just have to make sure we use
452# install-sh with the STRIPPROG variable set.
453AC_DEFUN([AM_PROG_INSTALL_STRIP],
454[AC_REQUIRE([AM_MISSING_INSTALL_SH])
455dnl Don't test for $cross_compiling = yes, it might be `maybe'...
456# We'd like to do this but we can't because it will unconditionally
457# require config.guess.  One way would be if autoconf had the capability
458# to let us compile in this code only when config.guess was already
459# a possibility.
460#if test "$cross_compiling" != no; then
461#  # since we are cross-compiling, we need to check for a suitable `strip'
462#  AM_PROG_STRIP
463#  if test -z "$STRIP"; then
464#    AC_MSG_WARN([strip missing, install-strip will not strip binaries])
465#  fi
466#fi
467
468# If $STRIP is defined (either by the user, or by AM_PROG_STRIP),
469# instruct install-strip to use install-sh and the given $STRIP program.
470# Otherwise, just use ${INSTALL}: the idea is to use the vendor install
471# as much as possible, because it's faster.
472if test -z "$STRIP"; then
473  # The top level make will set INSTALL_PROGRAM=$(INSTALL_STRIP_PROGRAM)
474  # and the double dolard below is there to make sure that ${INSTALL}
475  # is substitued in the sub-makes, not at the top-level; this is
476  # needed if ${INSTALL} is a relative path (ajusted in each subdirectory
477  # by config.status).
478  INSTALL_STRIP_PROGRAM='$${INSTALL} -s'
479  INSTALL_STRIP_PROGRAM_ENV=''
480else
481  _am_dirpart="`echo $install_sh | sed -e 's,//*[[^/]]*$,,'`"
482  INSTALL_STRIP_PROGRAM="\${SHELL} \`CDPATH=: && cd $_am_dirpart && pwd\`/install-sh -c -s"
483  INSTALL_STRIP_PROGRAM_ENV="STRIPPROG='\$(STRIP)'"
484fi
485AC_SUBST([STRIP])
486AC_SUBST([INSTALL_STRIP_PROGRAM])
487AC_SUBST([INSTALL_STRIP_PROGRAM_ENV])])
488
489#AC_DEFUN([AM_PROG_STRIP],
490#[# Check for `strip', unless the installer
491# has set the STRIP environment variable.
492# Note: don't explicitly check for -z "$STRIP" here because
493# that will cause problems if AC_CANONICAL_* is AC_REQUIREd after
494# this macro, and anyway it doesn't have an effect anyway.
495#AC_CHECK_TOOL([STRIP],[strip])
496#])
497
498#
499# Find some information about the etags program
500#
501# Sets
502#	ETAGS = path to etags
503#	ETAGS_INCLUDE_OPTION = option to pass to etags with arg for includes
504#
505
506AC_DEFUN([AM_PROG_ETAGS],
507[AC_BEFORE([$0], [AM_PROG_ETAGS_WORKS])dnl
508AC_CHECK_PROG(ETAGS, etags, etags)
509if test -z "$ETAGS"; then
510  AC_CHECK_PROG(ETAGS, ctags, ctags -e)
511fi
512if test -n "$ETAGS"; then
513	AM_PROG_ETAGS_WORKS
514	if test "$am_cv_prog_etags_works" = yes ; then
515		AM_PROG_ETAGS_INCLUDE_OPTION
516	else
517		AM_MISSING_PROG(ETAGS, etags)
518	fi
519else
520	AM_MISSING_PROG(ETAGS, etags)
521fi])
522
523
524AC_DEFUN([AM_PROG_ETAGS_WORKS],
525[AC_CACHE_CHECK([whether ${ETAGS-etags} works], [am_cv_prog_etags_works],
526[cat >conftest.c <<EOF
527int globalvar;
528EOF
529if AC_TRY_COMMAND([${ETAGS-etags} -f - conftest.c |egrep ^int\ globalvar\; >&2]); then
530	am_cv_prog_etags_works=yes
531else
532	am_cv_prog_etags_works=no
533fi
534rm -f conftest.c])])
535
536AC_DEFUN([AM_PROG_ETAGS_INCLUDE_OPTION],
537[AC_REQUIRE([AM_PROG_ETAGS_WORKS])dnl
538if test "$am_cv_prog_etags_works" = yes ; then
539	AC_CACHE_CHECK([for etags include option],
540	[am_cv_prog_etags_include_option],
541	[cat >conftest.c <<EOF
542int globalvar;
543EOF
544	if AC_TRY_COMMAND([${ETAGS-etags} --etags-include=TAGS.inc -f - conftest.c |egrep ^TAGS.inc,include\$ >&2]); then
545		am_cv_prog_etags_include_option=--etags-include=
546	elif AC_TRY_COMMAND([${ETAGS-etags} -i TAGS.inc -f - conftest.c |egrep ^TAGS.inc,include\$ >&2]); then
547		am_cv_prog_etags_include_option='"-i "'
548	else :
549		# AC_MSG_ERROR(unfamiliar etags implementation)
550	fi
551	rm -f conftest.c])
552else
553	:
554fi
555ETAGS_INCLUDE_OPTION="$am_cv_prog_etags_include_option"
556AC_SUBST(ETAGS_INCLUDE_OPTION)])
557
558# serial 3
559
560# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
561# written in clear, in which case automake, when reading aclocal.m4,
562# will think it sees a *use*, and therefore will trigger all it's
563# C support machinery.  Also note that it means that autoscan, seeing
564# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
565
566# AM_DEPENDENCIES(NAME)
567# ---------------------
568# See how the compiler implements dependency checking.
569# NAME is "CC", "CXX" or "OBJC".
570# We try a few techniques and use that to set a single cache variable.
571AC_DEFUN([AM_DEPENDENCIES],
572[AC_REQUIRE([AM_SET_DEPDIR])dnl
573AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
574ifelse([$1], CC,
575       [AC_REQUIRE([AC_PROG_][CC])dnl
576AC_REQUIRE([AC_PROG_][CPP])
577depcc="$CC"
578depcpp="$CPP"],
579       [$1], CXX, [AC_REQUIRE([AC_PROG_][CXX])dnl
580AC_REQUIRE([AC_PROG_][CXXCPP])
581depcc="$CXX"
582depcpp="$CXXCPP"],
583       [$1], OBJC, [am_cv_OBJC_dependencies_compiler_type=gcc],
584       [AC_REQUIRE([AC_PROG_][$1])dnl
585depcc="$$1"
586depcpp=""])
587
588AC_REQUIRE([AM_MAKE_INCLUDE])
589
590AC_CACHE_CHECK([dependency style of $depcc],
591               [am_cv_$1_dependencies_compiler_type],
592[if test -z "$AMDEP"; then
593  # We make a subdir and do the tests there.  Otherwise we can end up
594  # making bogus files that we don't know about and never remove.  For
595  # instance it was reported that on HP-UX the gcc test will end up
596  # making a dummy file named `D' -- because `-MD' means `put the output
597  # in D'.
598  mkdir confdir
599  # Copy depcomp to subdir because otherwise we won't find it if we're
600  # using a relative directory.
601  cp "$am_depcomp" confdir
602  cd confdir
603
604  am_cv_$1_dependencies_compiler_type=none
605  for depmode in `sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < "./depcomp"`; do
606    # We need to recreate these files for each test, as the compiler may
607    # overwrite some of them when testing with obscure command lines.
608    # This happens at least with the AIX C compiler.
609    echo '#include "conftest.h"' > conftest.c
610    echo 'int i;' > conftest.h
611
612    case "$depmode" in
613    nosideeffect)
614      # after this tag, mechanisms are not by side-effect, so they'll
615      # only be used when explicitly requested
616      if test "x$enable_dependency_tracking" = xyes; then
617	continue
618      else
619	break
620      fi
621      ;;
622    none) break ;;
623    esac
624    # We check with `-c' and `-o' for the sake of the "dashmstdout"
625    # mode.  It turns out that the SunPro C++ compiler does not properly
626    # handle `-M -o', and we need to detect this.
627    if depmode="$depmode" \
628       source=conftest.c object=conftest.o \
629       depfile=conftest.Po tmpdepfile=conftest.TPo \
630       $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
631       grep conftest.h conftest.Po > /dev/null 2>&1; then
632      am_cv_$1_dependencies_compiler_type="$depmode"
633      break
634    fi
635  done
636
637  cd ..
638  rm -rf confdir
639else
640  am_cv_$1_dependencies_compiler_type=none
641fi
642])
643$1DEPMODE="depmode=$am_cv_$1_dependencies_compiler_type"
644AC_SUBST([$1DEPMODE])
645])
646
647
648# AM_SET_DEPDIR
649# -------------
650# Choose a directory name for dependency files.
651# This macro is AC_REQUIREd in AM_DEPENDENCIES
652AC_DEFUN([AM_SET_DEPDIR],
653[if test -d .deps || mkdir .deps 2> /dev/null || test -d .deps; then
654  DEPDIR=.deps
655  # We redirect because .deps might already exist and be populated.
656  # In this situation we don't want to see an error.
657  rmdir .deps > /dev/null 2>&1
658else
659  DEPDIR=_deps
660fi
661AC_SUBST(DEPDIR)
662])
663
664
665# AM_DEP_TRACK
666# ------------
667AC_DEFUN([AM_DEP_TRACK],
668[AC_ARG_ENABLE(dependency-tracking,
669[  --disable-dependency-tracking Speeds up one-time builds
670  --enable-dependency-tracking  Do not reject slow dependency extractors])
671if test "x$enable_dependency_tracking" != xno; then
672  am_depcomp="$ac_aux_dir/depcomp"
673  AMDEPBACKSLASH='\'
674fi
675AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
676pushdef([subst], defn([AC_SUBST]))
677subst(AMDEPBACKSLASH)
678popdef([subst])
679])
680
681# Generate code to set up dependency tracking.
682# This macro should only be invoked once -- use via AC_REQUIRE.
683# Usage:
684# AM_OUTPUT_DEPENDENCY_COMMANDS
685
686#
687# This code is only required when automatic dependency tracking
688# is enabled.  FIXME.  This creates each `.P' file that we will
689# need in order to bootstrap the dependency handling code.
690AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],[
691AC_OUTPUT_COMMANDS([
692test x"$AMDEP" != x"" ||
693for mf in $CONFIG_FILES; do
694  case "$mf" in
695  Makefile) dirpart=.;;
696  */Makefile) dirpart=`echo "$mf" | sed -e 's|/[^/]*$||'`;;
697  *) continue;;
698  esac
699  grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
700  # Extract the definition of DEP_FILES from the Makefile without
701  # running `make'.
702  DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
703  test -z "$DEPDIR" && continue
704  # When using ansi2knr, U may be empty or an underscore; expand it
705  U=`sed -n -e '/^U = / s///p' < "$mf"`
706  test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
707  # We invoke sed twice because it is the simplest approach to
708  # changing $(DEPDIR) to its actual value in the expansion.
709  for file in `sed -n -e '
710    /^DEP_FILES = .*\\\\$/ {
711      s/^DEP_FILES = //
712      :loop
713	s/\\\\$//
714	p
715	n
716	/\\\\$/ b loop
717      p
718    }
719    /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
720       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
721    # Make sure the directory exists.
722    test -f "$dirpart/$file" && continue
723    fdir=`echo "$file" | sed -e 's|/[^/]*$||'`
724    $ac_aux_dir/mkinstalldirs "$dirpart/$fdir" > /dev/null 2>&1
725    # echo "creating $dirpart/$file"
726    echo '# dummy' > "$dirpart/$file"
727  done
728done
729], [AMDEP="$AMDEP"
730ac_aux_dir="$ac_aux_dir"])])
731
732# AM_MAKE_INCLUDE()
733# -----------------
734# Check to see how make treats includes.
735AC_DEFUN([AM_MAKE_INCLUDE],
736[am_make=${MAKE-make}
737cat > confinc << 'END'
738doit:
739	@echo done
740END
741# If we don't find an include directive, just comment out the code.
742AC_MSG_CHECKING([for style of include used by $am_make])
743_am_include='#'
744_am_quote=
745_am_result=none
746# First try GNU make style include.
747echo "include confinc" > confmf
748if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
749   _am_include=include
750   _am_quote=
751   _am_result=GNU
752fi
753# Now try BSD make style include.
754if test "$_am_include" = "#"; then
755   echo '.include "confinc"' > confmf
756   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
757      _am_include=.include
758      _am_quote='"'
759      _am_result=BSD
760   fi
761fi
762AC_SUBST(_am_include)
763AC_SUBST(_am_quote)
764AC_MSG_RESULT($_am_result)
765rm -f confinc confmf
766])
767
768# serial 3
769
770# AM_CONDITIONAL(NAME, SHELL-CONDITION)
771# -------------------------------------
772# Define a conditional.
773#
774# FIXME: Once using 2.50, use this:
775# m4_match([$1], [^TRUE\|FALSE$], [AC_FATAL([$0: invalid condition: $1])])dnl
776AC_DEFUN([AM_CONDITIONAL],
777[ifelse([$1], [TRUE],
778        [errprint(__file__:__line__: [$0: invalid condition: $1
779])dnl
780m4exit(1)])dnl
781ifelse([$1], [FALSE],
782       [errprint(__file__:__line__: [$0: invalid condition: $1
783])dnl
784m4exit(1)])dnl
785AC_SUBST([$1_TRUE])
786AC_SUBST([$1_FALSE])
787if $2; then
788  $1_TRUE=
789  $1_FALSE='#'
790else
791  $1_TRUE='#'
792  $1_FALSE=
793fi])
794
795# Like AC_CONFIG_HEADER, but automatically create stamp file.
796
797# serial 3
798
799# When config.status generates a header, we must update the stamp-h file.
800# This file resides in the same directory as the config header
801# that is generated.  We must strip everything past the first ":",
802# and everything past the last "/".
803
804AC_PREREQ([2.12])
805
806AC_DEFUN([AM_CONFIG_HEADER],
807[ifdef([AC_FOREACH],dnl
808	 [dnl init our file count if it isn't already
809	 m4_ifndef([_AM_Config_Header_Index], m4_define([_AM_Config_Header_Index], [0]))
810	 dnl prepare to store our destination file list for use in config.status
811	 AC_FOREACH([_AM_File], [$1],
812		    [m4_pushdef([_AM_Dest], m4_patsubst(_AM_File, [:.*]))
813		    m4_define([_AM_Config_Header_Index], m4_incr(_AM_Config_Header_Index))
814		    dnl and add it to the list of files AC keeps track of, along
815		    dnl with our hook
816		    AC_CONFIG_HEADERS(_AM_File,
817dnl COMMANDS, [, INIT-CMDS]
818[# update the timestamp
819echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h]_AM_Config_Header_Index["
820][$2]m4_ifval([$3], [, [$3]]))dnl AC_CONFIG_HEADERS
821		    m4_popdef([_AM_Dest])])],dnl
822[AC_CONFIG_HEADER([$1])
823  AC_OUTPUT_COMMANDS(
824   ifelse(patsubst([$1], [[^ ]], []),
825	  [],
826	  [test -z "$CONFIG_HEADERS" || echo timestamp >dnl
827	   patsubst([$1], [^\([^:]*/\)?.*], [\1])stamp-h]),dnl
828[am_indx=1
829for am_file in $1; do
830  case " \$CONFIG_HEADERS " in
831  *" \$am_file "*)
832    am_dir=\`echo \$am_file |sed 's%:.*%%;s%[^/]*\$%%'\`
833    if test -n "\$am_dir"; then
834      am_tmpdir=\`echo \$am_dir |sed 's%^\(/*\).*\$%\1%'\`
835      for am_subdir in \`echo \$am_dir |sed 's%/% %'\`; do
836        am_tmpdir=\$am_tmpdir\$am_subdir/
837        if test ! -d \$am_tmpdir; then
838          mkdir \$am_tmpdir
839        fi
840      done
841    fi
842    echo timestamp > "\$am_dir"stamp-h\$am_indx
843    ;;
844  esac
845  am_indx=\`expr \$am_indx + 1\`
846done])
847])]) # AM_CONFIG_HEADER
848
849# _AM_DIRNAME(PATH)
850# -----------------
851# Like AS_DIRNAME, only do it during macro expansion
852AC_DEFUN([_AM_DIRNAME],
853       [m4_if(m4_regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,
854	      m4_if(m4_regexp([$1], [^//\([^/]\|$\)]), -1,
855		    m4_if(m4_regexp([$1], [^/.*]), -1,
856			  [.],
857			  m4_patsubst([$1], [^\(/\).*], [\1])),
858		    m4_patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),
859	      m4_patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl
860]) # _AM_DIRNAME
861
862