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comparison host/aclocal.m4 @ 283:f58bc1b2c2bc

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Reorganization of the host-side autoconfiscation support, and a couple of minor bug fixes. The main goal is to support per-package host-side software in addition to the generic host-side tools. For example, the synthetic target HAL and device driver packages can now have host subdirectories with support code.
author bartv
date Sun, 11 Aug 2002 21:40:50 +0000
parents 511f4dc167f6
children
comparison
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282:a29ee6c2dd3c 283:f58bc1b2c2bc
1 dnl aclocal.m4 generated automatically by aclocal 1.4 1 dnl aclocal.m4 generated automatically by aclocal 1.4-p5
2 2
3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc. 3 dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation 4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it, 5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved. 6 dnl with or without modifications, as long as this notice is preserved.
7 7
8 dnl This program is distributed in the hope that it will be useful, 8 dnl This program is distributed in the hope that it will be useful,
14 dnl process that with autoconf. 14 dnl process that with autoconf.
15 dnl ==================================================================== 15 dnl ====================================================================
16 dnl 16 dnl
17 dnl acinclude.m4 17 dnl acinclude.m4
18 dnl 18 dnl
19 dnl Various autoconf macros that are shared between different
20 dnl eCos packages.
21 dnl
22 dnl ==================================================================== 19 dnl ====================================================================
23 dnl####COPYRIGHTBEGIN#### 20 dnl ####ECOSHOSTGPLCOPYRIGHTBEGIN####
24 dnl
25 dnl ---------------------------------------------------------------------------- 21 dnl ----------------------------------------------------------------------------
26 dnl Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc. 22 dnl Copyright (C) 2002 Bart Veer
27 dnl 23 dnl
28 dnl This file is part of the eCos host tools. 24 dnl This file is part of the eCos host tools.
29 dnl 25 dnl
30 dnl This program is free software; you can redistribute it and/or modify it 26 dnl This program is free software; you can redistribute it and/or modify it
31 dnl under the terms of the GNU General Public License as published by the Free 27 dnl under the terms of the GNU General Public License as published by the Free
40 dnl You should have received a copy of the GNU General Public License along with 36 dnl You should have received a copy of the GNU General Public License along with
41 dnl this program; if not, write to the Free Software Foundation, Inc., 37 dnl this program; if not, write to the Free Software Foundation, Inc.,
42 dnl 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 38 dnl 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
43 dnl 39 dnl
44 dnl ---------------------------------------------------------------------------- 40 dnl ----------------------------------------------------------------------------
45 dnl 41 dnl ####ECOSHOSTGPLCOPYRIGHTEND####
46 dnl####COPYRIGHTEND####
47 dnl ==================================================================== 42 dnl ====================================================================
48 dnl#####DESCRIPTIONBEGIN#### 43 dnl#####DESCRIPTIONBEGIN####
49 dnl 44 dnl
50 dnl Author(s): bartv 45 dnl Author(s): bartv
51 dnl Contact(s): bartv 46 dnl Contact(s): bartv
52 dnl Date: 1998/12/16 47 dnl Date: 2002/08/03
53 dnl Version: 0.01 48 dnl Version: 0.01
54 dnl 49 dnl
55 dnl####DESCRIPTIONEND#### 50 dnl####DESCRIPTIONEND####
56 dnl ==================================================================== 51 dnl ====================================================================
57 52
58 dnl ==================================================================== 53 dnl Access shared macros.
59 dnl The AM_INIT_AUTOMAKE() will define a symbol VERSION for the 54 dnl AM_CONDITIONAL needs to be mentioned here or else aclocal does not
60 dnl package's version number. Unfortunately this symbol is rather 55 dnl incorporate the macro into aclocal.m4
61 dnl hard to share if several different packages are involved, so this 56 sinclude(../acsupport/acinclude.m4)
62 dnl macro is used to define an alternative symbol
63 57
64 AC_DEFUN(CYG_AC_SUBST_VERSION,[ 58 # Define a conditional.
65 AC_REQUIRE([AM_INIT_AUTOMAKE])
66 ifelse($#,1,,AC_MSG_ERROR([Invalid number of arguments passed to CYG AC_SUBST_VERSION]))
67 AC_DEFINE_UNQUOTED($1, "$VERSION")
68 ])
69 59
70 dnl ==================================================================== 60 AC_DEFUN([AM_CONDITIONAL],
71 dnl Provide support for an automake conditional MSVC. Also set a 61 [AC_SUBST($1_TRUE)
72 dnl variable MSVC to true or false, which may help other tests. 62 AC_SUBST($1_FALSE)
73 63 if $2; then
74 AC_DEFUN(CYG_AC_PROG_MSVC,[ 64 $1_TRUE=
75 AC_REQUIRE([AC_PROG_CC]) 65 $1_FALSE='#'
76 AC_REQUIRE([AC_PROG_CXX])
77
78 AC_MSG_CHECKING("for Visual C++")
79 MSVC="no";
80 if test "${CC}" = "cl" ; then
81 MSVC="yes"
82 fi
83 if test "${CXX}" = "cl" ; then
84 MSVC="yes"
85 fi
86 AM_CONDITIONAL(MSVC, test "${MSVC}" = "yes")
87 AC_MSG_RESULT(${MSVC})
88 ])
89
90 dnl ====================================================================
91 dnl Set up sensible flags for the various different compilers. This
92 dnl is achieved by manipulating AM-CFLAGS and AM-CXXFLAGS via a subst,
93 dnl plus undoing the setting of CFLAGS and CXXFLAGS done by
94 dnl the AC_PROC_CC and AC_PROG_CXX macros. Note that this relies
95 dnl on knowing about the internals of those macros.
96 dnl
97 dnl There is no point in checking the cache, this macro does
98 dnl not do any feature tests.
99 dnl
100 dnl The VC++ variant might benefit from -Za, but the header files
101 dnl shipped with the compiler are incompatible with this option.
102
103 AC_DEFUN(CYG_AC_PROG_STANDARD_COMPILER_FLAGS, [
104 AC_REQUIRE([AC_PROG_CC])
105 AC_REQUIRE([AC_PROG_CXX])
106 AC_REQUIRE([CYG_AC_PROG_MSVC])
107
108 AC_MSG_CHECKING("the default compiler flags")
109
110 dnl Add a user-settable flag to control whether or debugging info is
111 dnl incorporated at compile-time.
112 dnl
113 dnl NOTE: there may also have to be a flag to control whether or
114 dnl the VC++ multi-threading flags are enabled.
115 cygflags_enable_debug="no"
116 AC_ARG_ENABLE(debug,[ --enable-debug do a debug rather than a release build],
117 [case "${enableval}" in
118 yes) cygflags_enable_debug="yes" ;;
119 *) cygflags_enable_debug="no" ;;
120 esac])
121
122 dnl For VC++ builds also provide a flag for ANSI vs. unicode builds.
123 dnl For now this does not actually affect the compiler flags.
124 cygflags_enable_ansi="no"
125 if test "${MSVC}" = "yes" ; then
126 AC_ARG_ENABLE(ansi,[ --enable-ansi Do an ANSI rather than a unicode build],
127 [case "${enableval}" in
128 yes) cygflags_enable_ansi="yes" ;;
129 *) cygflags_enable_ansi="no" ;;
130 esac])
131 fi
132
133 dnl Now we know what the user is after.
134 if test "${GCC}" = "yes" ; then
135 cyg_CFLAGS="-pipe -Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs"
136 cyg_CXXFLAGS="-pipe -Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Woverloaded-virtual"
137 elif test "${MSVC}" = "yes" ; then
138 cyg_CFLAGS="-nologo -W3"
139 cyg_CXXFLAGS="-nologo -W3 -GR -GX"
140 else
141 AC_MSG_ERROR("default flags for ${CC} are not known")
142 fi
143
144 dnl Choose between debugging and optimization.
145 if test "${cygflags_enable_debug}" = "yes" ; then
146 if test "${GCC}" = "yes" ; then
147 cyg_CFLAGS="${cyg_CFLAGS} -g -O0"
148 cyg_CXXFLAGS="${cyg_CXXFLAGS} -g -O0"
149 elif test "${MSVC}" = "yes" ; then
150 cyg_CFLAGS="${cyg_CFLAGS} -MDd -Zi"
151 cyg_CXXFLAGS="${cyg_CXXFLAGS} -MDd -Zi"
152 fi
153 else
154 if test "${GCC}" = "yes" ; then
155 cyg_CFLAGS="${cyg_CFLAGS} -O0"
156 cyg_CXXFLAGS="${cyg_CXXFLAGS} -O0"
157 elif test "${MSVC}" = "yes" ; then
158 cyg_CFLAGS="${cyg_CFLAGS} -MD -O2"
159 cyg_CXXFLAGS="${cyg_CXXFLAGS} -MD -O2"
160 fi
161 fi
162
163 CFLAGS="${ac_save_CFLAGS}"
164 CXXFLAGS="${ac_save_CXXFLAGS}"
165 AC_SUBST(cyg_CFLAGS)
166 AC_SUBST(cyg_CXXFLAGS)
167 AC_MSG_RESULT(done)
168 ])
169
170 dnl --------------------------------------------------------------------
171 dnl User-settable options for assertions and tracing.
172 dnl
173 dnl The settable options are:
174 dnl --disable-asserts
175 dnl --disable-preconditions
176 dnl --disable-postconditions
177 dnl --disable-invariants
178 dnl --disable-loopinvariants
179 dnl --disable-tracing
180 dnl --disable-fntracing
181
182 AC_DEFUN(CYG_AC_ARG_INFRASTRUCTURE, [
183
184 AC_REQUIRE([CYG_AC_PROG_STANDARD_COMPILER_FLAGS])
185
186 if test "${cygflags_enable_debug}" = "yes" ; then
187 cyginfra_asserts=yes
188 cyginfra_preconditions=yes
189 cyginfra_postconditions=yes
190 cyginfra_invariants=yes
191 cyginfra_loopinvariants=yes
192 cyginfra_tracing=yes
193 cyginfra_fntracing=yes
194 else 66 else
195 cyginfra_asserts=no 67 $1_TRUE='#'
196 cyginfra_preconditions=no 68 $1_FALSE=
197 cyginfra_postconditions=no 69 fi])
198 cyginfra_invariants=no
199 cyginfra_loopinvariants=no
200 cyginfra_tracing=no
201 cyginfra_fntracing=no
202 fi
203
204 AC_ARG_ENABLE(asserts,[ --disable-asserts disable all assertions],
205 [case "${enableval}" in
206 yes) cyginfra_asserts=yes ;;
207 no) cyginfra_asserts=no ;;
208 *) AC_MSG_ERROR([bad value ${enableval} for disable-asserts option]) ;;
209 esac])
210 if test "${cyginfra_asserts}" = "yes"; then
211 AC_DEFINE(CYGDBG_USE_ASSERTS)
212 fi
213
214 AC_ARG_ENABLE(preconditions, [ --disable-preconditions disable a subset of the assertions],
215 [case "${enableval}" in
216 yes) cyginfra_preconditions=yes ;;
217 no) cyginfra_preconditions=no ;;
218 *) AC_MSG_ERROR([bad value ${enableval} for disable-preconditions option]) ;;
219 esac])
220 if test "${cyginfra_preconditions}" = "yes"; then
221 AC_DEFINE(CYGDBG_INFRA_DEBUG_PRECONDITIONS)
222 fi
223
224 AC_ARG_ENABLE(postconditions, [ --disable-postconditions disable a subset of the assertions],
225 [case "${enableval}" in
226 yes) cyginfra_postconditions=yes ;;
227 no) cyginfra_postconditions=no ;;
228 *) AC_MSG_ERROR([bad value ${enableval} for disable-postconditions option]) ;;
229 esac])
230 if test "${cyginfra_postconditions}" = "yes"; then
231 AC_DEFINE(CYGDBG_INFRA_DEBUG_POSTCONDITIONS)
232 fi
233
234 AC_ARG_ENABLE(invariants, [ --disable-invariants disable a subset of the assertions],
235 [case "${enableval}" in
236 yes) cyginfra_invariants=yes ;;
237 no) cyginfra_invariants=no ;;
238 *) AC_MSG_ERROR([bad value ${enableval} for disable-invariants option]) ;;
239 esac])
240 if test "${cyginfra_invariants}" = "yes"; then
241 AC_DEFINE(CYGDBG_INFRA_DEBUG_INVARIANTS)
242 fi
243
244 AC_ARG_ENABLE(loopinvariants, [ --disable-loopinvariants disable a subset of the assertions],
245 [case "${enableval}" in
246 yes) cyginfra_loopinvariants=yes ;;
247 no) cyginfra_loopinvariants=no ;;
248 *) AC_MSG_ERROR([bad value ${enableval} for disable-loopinvariants option]) ;;
249 esac])
250 if test "${cyginfra_loopinvariants}" = "yes"; then
251 AC_DEFINE(CYGDBG_INFRA_DEBUG_LOOP_INVARIANTS)
252 fi
253
254 AC_ARG_ENABLE(tracing,[ --disable-tracing disable tracing],
255 [case "${enableval}" in
256 yes) cyginfra_tracing=yes ;;
257 no) cyginfra_tracing=no ;;
258 *) AC_MSG_ERROR([bad value ${enableval} for disable-tracing option]) ;;
259 esac])
260 if test "${cyginfra_tracing}" = "yes"; then
261 AC_DEFINE(CYGDBG_USE_TRACING)
262 fi
263
264 AC_ARG_ENABLE(fntracing,[ --disable-fntracing disable function entry/exit tracing],
265 [case "${enableval}" in
266 yes) cyginfra_fntracing=yes ;;
267 no) cyginfra_fntracing=no ;;
268 *) AC_MSG_ERROR([bad value ${enableval} for disable-fntracing option]) ;;
269 esac])
270 if test "${cyginfra_fntracing}" = "yes"; then
271 AC_DEFINE(CYGDBG_INFRA_DEBUG_FUNCTION_REPORTS)
272 fi
273
274 ])
275
276 dnl ====================================================================
277 dnl Inspired by KDE's autoconfig
278 dnl This macro takes three Arguments like this:
279 dnl AC_FIND_FILE(foo.h, $incdirs, incdir)
280 dnl the filename to look for, the list of paths to check and
281 dnl the variable with the result.
282
283 AC_DEFUN(AC_FIND_FILE,
284 [
285 $3=NO
286 for i in $2;
287 do
288 for j in $1;
289 do
290 if test -r "$i/$j"; then
291 $3=$i
292 break 2
293 fi
294 done
295 done
296 ])
297
298
299 dnl --------------------------------------------------------------------
300 dnl Convert a cygwin pathname to something acceptable to VC++ (but
301 dnl still invoked from bash and cygwin's make). This means using
302 dnl the cygpath utility and then translating any backslashes into
303 dnl forward slashes to avoid confusing make.
304
305 AC_DEFUN(CYG_AC_MSVC_PATH, [
306 AC_REQUIRE([CYG_AC_PROG_MSVC])
307 ifelse($#, 1, , AC_MSG_ERROR("Invalid number of arguments passed to CYG AC_MSVC_PATH"))
308
309 if test "${MSVC}" = "yes" ; then
310 $1=`cygpath -w ${$1} | tr \\\\\\\\ /`
311 fi
312 ])
313
314
315 dnl --------------------------------------------------------------------
316 dnl Work out details of the Tcl installation that should be used.
317 dnl This adds two command-line options, --with-tcl=<prefix> to
318 dnl specify the Tcl install directory, and --with-tcl-version=<vsn>
319 dnl to control which version of Tcl should be used.
320 dnl
321 dnl On Unix systems and under cygwin there should be a file
322 dnl $(tcl_prefix)/lib/tclConfig.sh containing all the information
323 dnl needed for Tcl. This file are consulted and the appropriate
324 dnl variables extracted.
325 dnl
326 dnl To confuse matters, subtly different naming conventions are used
327 dnl under Unix and NT. Under Unix the Tcl library will be called
328 dnl libtcl8.0.a, libtcl8.1.a, etc. with a dot between the major and
329 dnl minor version. Under NT (including cygwin) the library will be
330 dnl called tcl80.lib, dnl tcl81.lib, libtcl80.a, libtcl81.a, etc.
331 dnl without a dot.
332 dnl
333 dnl The macro should really assume that it is running inside devo,
334 dnl with tcl and tcl8.1 directories present and already configured.
335 dnl This is tricky for a number of reasons, including confusion about
336 dnl the meaning of top_srcdir.
337 dnl
338 dnl This macro defines four new shell variables which will be
339 dnl substituted (typically into Makefile.in):
340 dnl
341 dnl cyg_ac_tcl_version - the version of Tcl that is to be used
342 dnl cyg_ac_tcl_incdir - location of <tcl.h> etc al
343 dnl cyg_ac_tcl_libdir - location of libtcl.a/tcl.lib etc.
344 dnl cyg_ac_tcl_libs - all of the libraries that are needed for Tcl
345
346 AC_DEFUN(CYG_AC_PATH_TCL, [
347
348 AC_REQUIRE([CYG_AC_PROG_MSVC])
349 AC_REQUIRE([AC_CYGWIN])
350
351 dnl Look for the version of Tcl. If none is specified, default to
352 dnl 8.0 under VC++ and cygwin, nothing under Unix. A version has to be
353 dnl specified under NT because there is no symbolic link from libtcl.a
354 dnl to whatever happens to be the most recent installed version.
355
356 AC_MSG_CHECKING(for Tcl version)
357 AC_ARG_WITH(tcl-version,[ --with-tcl-version=<vsn> version of Tcl to be used],[
358 cyg_ac_tcl_version=${with_tcl_version}
359 ],[
360 if test "${MSVC}" = "yes" ; then
361 cyg_ac_tcl_version=80
362 else
363 if test "${ac_cv_cygwin}" = "yes" ; then
364 cyg_ac_tcl_version=80
365 else
366 cyg_ac_tcl_version=""
367 fi
368 fi
369 ])
370 AC_MSG_RESULT(${cyg_ac_tcl_version})
371 AC_SUBST(cyg_ac_tcl_version)
372
373 dnl Where is the Tcl installation? By default assume Tcl is already
374 dnl installed in the same place as the eCos host-side.
375
376 AC_ARG_WITH(tcl,[ --with-tcl-header=<path> location of Tcl header])
377 AC_ARG_WITH(tcl,[ --with-tcl-lib=<path> location of Tcl libraries])
378 AC_ARG_WITH(tcl,[ --with-tcl=<path> location of Tcl header and libraries])
379
380 AC_MSG_CHECKING(for Tcl installation)
381
382 dnl If using VC++ then there are no sensible default directories
383 dnl to search for a Tcl installation. Instead the user must
384 dnl supply either --with-tcl, or both --with-tcl-header and
385 dnl --with-tcl-lib.
386 dnl
387 dnl Also when using VC++ there is no tclConfig.sh file to
388 dnl consult about which libraries are needed. Instead that
389 dnl information is hard-wired here.
390
391 if test "${MSVC}" = "yes" ; then
392 if test "${with_tcl_header+set}" = set; then
393 cyg_ac_tcl_incdir=${with_tcl_header}
394 else
395 if test "${with_tcl+set}" = set; then
396 cyg_ac_tcl_incdir="${with_tcl}/include"
397 else
398 AC_MSG_ERROR(You must specify a Tcl installation with either --with-tcl=<path> or --with-tcl-header=<path>)
399 fi
400 fi
401 if test "${with_tcl_lib+set}" = set; then
402 cyg_ac_tcl_libdir=${with_tcl_lib}
403 else
404 if test "${with_tcl+set}" = set; then
405 cyg_ac_tcl_libdir="${with_tcl}/lib"
406 else
407 AC_MSG_ERROR(You must specify a Tcl installation with either --with-tcl=<path> or --with-tcl-lib=<path>)
408 fi
409 fi
410 cyg_ac_tcl_libs="tcl${cyg_ac_tcl_version}.lib"
411 else
412 tcl_incdirs="${with_tcl_header} ${with_tcl}/include ${prefix}/include /usr/include/tcl$cyg_ac_tcl_version /usr/include"
413 AC_FIND_FILE(tcl.h, $tcl_incdirs, cyg_ac_tcl_incdir)
414 tcl_libdirs="${with_tcl_lib} ${with_tcl}/lib ${libdir} ${prefix}/lib /usr/lib/tcl$cyg_ac_tcl_version /usr/lib"
415 AC_FIND_FILE(tclConfig.sh, $tcl_libdirs, cyg_ac_tcl_libdir)
416 if test \! -r ${cyg_ac_tcl_libdir}/tclConfig.sh ; then
417 AC_MSG_ERROR(unable to locate Tcl config file tclConfig.sh)
418 else
419 . ${cyg_ac_tcl_libdir}/tclConfig.sh
420 cyg_ac_tcl_libs="-ltcl${cyg_ac_tcl_version} ${TCL_LIBS}"
421 fi
422 fi
423
424 dnl Sanity check, make sure that there is a tcl.h header file.
425 dnl If not then there is no point in proceeding.
426 if test \! -r ${cyg_ac_tcl_incdir}/tcl.h ; then
427 AC_MSG_ERROR(unable to locate Tcl header file tcl.h)
428 fi
429
430 if test "${MSVC}" = "yes" ; then
431 CYG_AC_MSVC_PATH(cyg_ac_tcl_incdir)
432 CYG_AC_MSVC_PATH(cyg_ac_tcl_libdir)
433 fi
434
435 AC_MSG_RESULT(${cyg_ac_tcl_libdir})
436
437 AC_SUBST(cyg_ac_tcl_incdir)
438 AC_SUBST(cyg_ac_tcl_libdir)
439 AC_SUBST(cyg_ac_tcl_libs)
440 AC_SUBST(cyg_ac_tk_libs)
441 ])
442
443
444
445 70
446 # Do all the work for Automake. This macro actually does too much -- 71 # Do all the work for Automake. This macro actually does too much --
447 # some checks are only needed if your package does certain things. 72 # some checks are only needed if your package does certain things.
448 # But this isn't really a big deal. 73 # But this isn't really a big deal.
449 74
450 # serial 1 75 # serial 1
451 76
452 dnl Usage: 77 dnl Usage:
453 dnl AM_INIT_AUTOMAKE(package,version, [no-define]) 78 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
454 79
455 AC_DEFUN(AM_INIT_AUTOMAKE, 80 AC_DEFUN([AM_INIT_AUTOMAKE],
456 [AC_REQUIRE([AC_PROG_INSTALL]) 81 [AC_REQUIRE([AC_PROG_INSTALL])
457 PACKAGE=[$1] 82 PACKAGE=[$1]
458 AC_SUBST(PACKAGE) 83 AC_SUBST(PACKAGE)
459 VERSION=[$2] 84 VERSION=[$2]
460 AC_SUBST(VERSION) 85 AC_SUBST(VERSION)
478 103
479 # 104 #
480 # Check to make sure that the build environment is sane. 105 # Check to make sure that the build environment is sane.
481 # 106 #
482 107
483 AC_DEFUN(AM_SANITY_CHECK, 108 AC_DEFUN([AM_SANITY_CHECK],
484 [AC_MSG_CHECKING([whether build environment is sane]) 109 [AC_MSG_CHECKING([whether build environment is sane])
485 # Just in case 110 # Just in case
486 sleep 1 111 sleep 1
487 echo timestamp > conftestfile 112 echo timestamp > conftestfile
488 # Do `set' in a subshell so we don't clobber the current shell's 113 # Do `set' in a subshell so we don't clobber the current shell's
519 rm -f conftest* 144 rm -f conftest*
520 AC_MSG_RESULT(yes)]) 145 AC_MSG_RESULT(yes)])
521 146
522 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) 147 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
523 dnl The program must properly implement --version. 148 dnl The program must properly implement --version.
524 AC_DEFUN(AM_MISSING_PROG, 149 AC_DEFUN([AM_MISSING_PROG],
525 [AC_MSG_CHECKING(for working $2) 150 [AC_MSG_CHECKING(for working $2)
526 # Run test in a subshell; some versions of sh will print an error if 151 # Run test in a subshell; some versions of sh will print an error if
527 # an executable is not found, even if stderr is redirected. 152 # an executable is not found, even if stderr is redirected.
528 # Redirect stdin to placate older versions of autoconf. Sigh. 153 # Redirect stdin to placate older versions of autoconf. Sigh.
529 if ($2 --version) < /dev/null > /dev/null 2>&1; then 154 if ($2 --version) < /dev/null > /dev/null 2>&1; then
533 $1="$3/missing $2" 158 $1="$3/missing $2"
534 AC_MSG_RESULT(missing) 159 AC_MSG_RESULT(missing)
535 fi 160 fi
536 AC_SUBST($1)]) 161 AC_SUBST($1)])
537 162
538 # Define a conditional.
539
540 AC_DEFUN(AM_CONDITIONAL,
541 [AC_SUBST($1_TRUE)
542 AC_SUBST($1_FALSE)
543 if $2; then
544 $1_TRUE=
545 $1_FALSE='#'
546 else
547 $1_TRUE='#'
548 $1_FALSE=
549 fi])
550
551 # Add --enable-maintainer-mode option to configure. 163 # Add --enable-maintainer-mode option to configure.
552 # From Jim Meyering 164 # From Jim Meyering
553 165
554 # serial 1 166 # serial 1
555 167
556 AC_DEFUN(AM_MAINTAINER_MODE, 168 AC_DEFUN([AM_MAINTAINER_MODE],
557 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) 169 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
558 dnl maintainer-mode is disabled by default 170 dnl maintainer-mode is disabled by default
559 AC_ARG_ENABLE(maintainer-mode, 171 AC_ARG_ENABLE(maintainer-mode,
560 [ --enable-maintainer-mode enable make rules and dependencies not useful 172 [ --enable-maintainer-mode enable make rules and dependencies not useful
561 (and sometimes confusing) to the casual installer], 173 (and sometimes confusing) to the casual installer],