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c22cc67be7
* NEWS: Document it. * doc/autoconf.texi (Present But Cannot Be Compiled): Document it. * lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): Implement it and adjust warning. * tests/semantics.at (AC_CHECK_HEADERS): Test new semantics.
675 lines
17 KiB
Plaintext
675 lines
17 KiB
Plaintext
# -*- Autotest -*-
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AT_BANNER([Semantics.])
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# Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006, 2007 Free Software
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# Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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## -------------------------------- ##
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## Members of the AC_CHECK family. ##
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## -------------------------------- ##
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# AC_CHECK_LIB
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# ------------
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# Well, I can't imagine a system where `cos' is neither in libc, nor
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# in libm. Nor can I imagine a lib more likely to exists than libm.
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# But there are systems without libm, on which we don't want to have
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# this test fail, so exit successfully if `cos' is in libc.
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AT_CHECK_MACRO([AC_CHECK_LIB],
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[AC_TRY_LINK_FUNC(cos,
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[AC_MSG_ERROR([`cos' is in `libc'], 77)])
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AC_CHECK_LIB(m, cos,,
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[AC_MSG_ERROR([cannot find `cos' in `libm'])])
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# No kidding, using variables was broken in 2.50 :(
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ac_sin=sin
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AC_CHECK_LIB(m, $ac_sin,,
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[AC_MSG_ERROR([cannot find `\$ac_sin' (= `$ac_sin') in `libm'])])
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ac_m=m
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AC_CHECK_LIB($ac_m, acos,,
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[AC_MSG_ERROR([cannot find `acos' in `\$ac_m' (= `$ac_m')])])
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ac_asin=asin
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AC_CHECK_LIB($ac_m, $ac_asin,,
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[AC_MSG_ERROR([cannot find `\$ac_asin' (= `$ac_asin') in `\$ac_m' (= `$ac_m')])])
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# But if the bug is in the caching mechanism, then be sure we
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# correctly detect failures.
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AC_CHECK_LIB(m, cossack,
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[AC_MSG_ERROR([found `cossack' in `libm'])])
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# No kidding, using variables was broken in 2.50 :(
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ac_sinner=sinner
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AC_CHECK_LIB(m, $ac_sinner,
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[AC_MSG_ERROR([found `\$ac_sinner' (= `$ac_sinner') in `libm'])])
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ac_m=m
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AC_CHECK_LIB($ac_m, acossack,
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[AC_MSG_ERROR([found `acossack' in `\$ac_m' (= `$ac_m')])])
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ac_asinner=asinner
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AC_CHECK_LIB($ac_m, $ac_asinner,
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[AC_MSG_ERROR([found `\$ac_asinner' (= `$ac_asinner') in `\$ac_m' (= `$ac_m')])])
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])
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# AC_SEARCH_LIBS
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# --------------
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AT_CHECK_MACRO([AC_SEARCH_LIBS],
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[
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AC_SEARCH_LIBS(cos, oser m ust,,
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[AC_MSG_ERROR([cannot find `cos'])])
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case "$ac_cv_search_cos" in
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-loser|-lust) AC_MSG_ERROR([jeez, $ac_cv_search_cos must be a cool library!]) ;;
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esac
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])
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# AC_SEARCH_LIBS (none needed)
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# ----------------------------
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AT_CHECK_MACRO([AC_SEARCH_LIBS (none needed)],
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[
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AC_SEARCH_LIBS(printf, oser c ust,,
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[AC_MSG_ERROR([cannot find `printf'])])
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case "$ac_cv_search_printf" in
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-loser|-lust) AC_MSG_ERROR([jeez, $ac_cv_search_printf must be a cool library!]) ;;
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-lc) AC_MSG_ERROR([huh, you need to give -lc?])
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esac
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])
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# AC_CHECK_DECLS
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# --------------
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# Check that it performs the correct actions:
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AT_CHECK_MACRO([AC_CHECK_DECLS],
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[[AC_CHECK_DECLS([yes, no, myenum, mystruct, myfunc, mymacro1, mymacro2],,,
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[[int yes = 1;
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enum { myenum };
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struct { int x[20]; } mystruct;
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extern int myfunc();
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#define mymacro1(arg) arg
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#define mymacro2]])]],
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[AT_CHECK_DEFINES(
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[#define HAVE_DECL_MYENUM 1
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#define HAVE_DECL_MYFUNC 1
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#define HAVE_DECL_MYMACRO1 1
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#define HAVE_DECL_MYMACRO2 1
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#define HAVE_DECL_MYSTRUCT 1
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#define HAVE_DECL_NO 0
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#define HAVE_DECL_YES 1
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])])
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# AC_CHECK_FUNCS
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# --------------
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# Check that it performs the correct actions:
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# Must define HAVE_PRINTF, but not HAVE_AUTOCONF_FTNIRP
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AT_CHECK_MACRO([AC_CHECK_FUNCS],
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[AC_CHECK_FUNCS(printf autoconf_ftnirp)],
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[AT_CHECK_DEFINES(
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[/* #undef HAVE_AUTOCONF_FTNIRP */
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#define HAVE_PRINTF 1
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])])
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# AC_REPLACE_FUNCS
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# ----------------
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# Check that it performs the correct actions: autoconf_ftnirp.c must
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# be compiled, and must define HAVE_PRINTF, but not HAVE_AUTOCONF_FTNIRP
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# FIXME: Maybe check the traces?
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AT_SETUP([AC_REPLACE_FUNCS])
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AT_DATA([config.in],
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[@LIBOBJS@
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])
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AT_CONFIGURE_AC(
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[AC_CONFIG_FILES(config.libobjs:config.in)
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AC_REPLACE_FUNCS(printf autoconf_ftnirp)])
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AT_CHECK_AUTOCONF([-W obsolete])
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AT_CHECK_AUTOHEADER
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AT_CHECK_CONFIGURE
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AT_CHECK_ENV
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AT_CHECK_DEFINES(
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[/* #undef HAVE_AUTOCONF_FTNIRP */
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#define HAVE_PRINTF 1
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])
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AT_CHECK([sed 's/ */ /g;s/^ //;s/ $//' config.libobjs], [],
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[${LIBOBJDIR}autoconf_ftnirp$U.o
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])
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AT_CLEANUP
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# AC_CHECK_HEADERS
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# ----------------
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# Check that it performs the correct actions:
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# Must define HAVE_STDIO_H, but not HAVE_AUTOCONF_IO_H.
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AT_SETUP([AC_CHECK_HEADERS])
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AT_DATA([autoconf_io.h],
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[blah blah
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])
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AT_CONFIGURE_AC([AC_CHECK_HEADERS(stdio.h autoconf_io.h)])
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AT_CHECK_AUTOCONF([-W obsolete])
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AT_CHECK_AUTOHEADER
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AT_CHECK_CONFIGURE([CPPFLAGS=-I.], [0], [ignore],
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[configure: WARNING: autoconf_io.h: present but cannot be compiled
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configure: WARNING: autoconf_io.h: check for missing prerequisite headers?
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configure: WARNING: autoconf_io.h: see the Autoconf documentation
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configure: WARNING: autoconf_io.h: section "Present But Cannot Be Compiled"
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configure: WARNING: autoconf_io.h: proceeding with the compiler's result
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])
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AT_CHECK_ENV
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AT_CHECK_DEFINES(
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[/* #undef HAVE_AUTOCONF_IO_H */
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#define HAVE_STDIO_H 1
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])
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AT_CLEANUP
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# AC_CHECK_HEADERS_OLD
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# --------------------
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# Check that it performs the correct actions:
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# Must not check prerequisites, hence define header2.h
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AT_SETUP([AC_CHECK_HEADERS (preprocessor test)])
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AT_DATA([header1.h],
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[typedef int foo;
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])
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AT_DATA([header2.h],
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[typedef foo bar;
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])
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AT_CONFIGURE_AC([AC_CHECK_HEADERS(header2.h, [], [], -)])
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AT_CHECK_AUTOCONF([-W obsolete])
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AT_CHECK_AUTOHEADER
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AT_CHECK_CONFIGURE([CPPFLAGS=-I.])
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AT_CHECK_ENV
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AT_CHECK_DEFINES(
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[#define HAVE_HEADER2_H 1
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])
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AT_CLEANUP
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# AC_CHECK_HEADERS_NEW
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# --------------------
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# Check that it performs the correct actions:
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# Must check prerequisites, hence define header2.h but not header3.h
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AT_SETUP([AC_CHECK_HEADERS (compiler test)])
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AT_DATA([header1.h],
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[typedef int foo;
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])
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AT_DATA([header2.h],
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[typedef foo bar;
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])
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AT_DATA([header3.h],
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[typedef bar wow;
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])
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AT_CONFIGURE_AC(
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[AC_CHECK_HEADERS(header2.h header3.h, [], [], [[@%:@include "header1.h"]])])
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AT_CHECK_AUTOCONF([-W obsolete])
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AT_CHECK_AUTOHEADER
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AT_CHECK_CONFIGURE([CPPFLAGS=-I.])
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AT_CHECK_ENV
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AT_CHECK_DEFINES(
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[#define HAVE_HEADER2_H 1
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/* #undef HAVE_HEADER3_H */
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])
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AT_CLEANUP
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# AC_CHECK_MEMBERS
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# ----------------
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# Check that it performs the correct actions.
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# Must define HAVE_STRUCT_YES_S_YES, but not HAVE_STRUCT_YES_S_NO.
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AT_CHECK_MACRO([AC_CHECK_MEMBERS],
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[[AC_CHECK_MEMBERS([struct yes_s.yes, struct yes_s.no, struct yes_s.substruct],,,
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[struct sub { int x; };
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struct yes_s { int yes; struct sub substruct; };])]],
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[AT_CHECK_DEFINES(
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[/* #undef HAVE_STRUCT_YES_S_NO */
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#define HAVE_STRUCT_YES_S_SUBSTRUCT 1
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#define HAVE_STRUCT_YES_S_YES 1
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])])
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# AC_CHECK_ALIGNOF
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# ----------------
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AT_CHECK_MACRO_CROSS([AC_CHECK_ALIGNOF],
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[[AC_CHECK_ALIGNOF(char)
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AC_CHECK_ALIGNOF(charchar,
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[[#include <stddef.h>
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#include <stdio.h>
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typedef char charchar[2];]])
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AC_CHECK_ALIGNOF(charcharchar)
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]],
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[AT_CHECK_DEFINES(
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[#define ALIGNOF_CHAR 1
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#define ALIGNOF_CHARCHAR 1
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#define ALIGNOF_CHARCHARCHAR 0
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])])
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# AC_CHECK_ALIGNOF struct
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# -----------------------
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AT_CHECK_MACRO_CROSS([AC_CHECK_ALIGNOF struct],
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[[AC_CHECK_ALIGNOF([struct { char c; }])
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AC_CHECK_ALIGNOF([struct nosuchstruct])
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]],
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[AT_CHECK([[grep "#define ALIGNOF_STRUCT___CHAR_C___ [^0]" config.h]],
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0, ignore)
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AT_CHECK([[grep "#define ALIGNOF_STRUCT_NOSUCHSTRUCT 0" config.h]],
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0, ignore)
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])
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# AC_CHECK_SIZEOF
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# ---------------
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AT_CHECK_MACRO_CROSS([AC_CHECK_SIZEOF],
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[[AC_CHECK_SIZEOF(char)
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AC_CHECK_SIZEOF(charchar,,
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[[#include <stdio.h>
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typedef char charchar[2];]])
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AC_CHECK_SIZEOF(charcharchar)
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]],
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[AT_CHECK_DEFINES(
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[#define SIZEOF_CHAR 1
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#define SIZEOF_CHARCHAR 2
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#define SIZEOF_CHARCHARCHAR 0
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])])
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# AC_CHECK_SIZEOF struct
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# ----------------------
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AT_CHECK_MACRO_CROSS([AC_CHECK_SIZEOF struct],
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[[AC_C_CONST
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AC_CHECK_SIZEOF([struct x], [], [struct x { char c; int x; };])
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AC_CHECK_SIZEOF([const struct x], [], [struct x { const char *p; int x; };])
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AC_CHECK_SIZEOF([struct nosuchstruct])
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]],
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[AT_CHECK([[grep "#define SIZEOF_STRUCT_X [^0]" config.h]],
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0, ignore)
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AT_CHECK([[grep "#define SIZEOF_CONST_STRUCT_X [^0]" config.h]],
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0, ignore)
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AT_CHECK([[grep "#define SIZEOF_STRUCT_NOSUCHSTRUCT 0" config.h]],
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0, ignore)
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])
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# AC_CHECK_TYPES
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# --------------
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# Check that it performs the correct actions.
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# Must define HAVE_STRUCT_YES_S, HAVE_INT, but not HAVE_STRUCT_NO_S.
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# `int' and `struct yes_s' are both checked to test both the compiler
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# builtin types, and defined types.
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AT_CHECK_MACRO([AC_CHECK_TYPES],
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[[AC_CHECK_TYPES([int, struct yes_s, struct no_s],,,
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[struct yes_s { int yes ;} ;])]],
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[AT_CHECK_DEFINES(
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[#define HAVE_INT 1
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/* #undef HAVE_STRUCT_NO_S */
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#define HAVE_STRUCT_YES_S 1
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])])
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# AC_CHECK_TYPES
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# --------------
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# Check that we properly dispatch properly to the old implementation
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# or to the new one.
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AT_SETUP([AC_CHECK_TYPES: backward compatibility])
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AT_DATA([configure.ac],
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[[AC_INIT
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define([_AC_CHECK_TYPE_NEW], [NEW])
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define([_AC_CHECK_TYPE_OLD], [OLD])
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#(cut-from-here
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AC_CHECK_TYPE(ptrdiff_t)
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AC_CHECK_TYPE(ptrdiff_t, int)
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AC_CHECK_TYPE(quad, long long int)
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AC_CHECK_TYPE(table_42, [int[42]])
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# Nice machine!
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AC_CHECK_TYPE(uint8_t, uint65536_t)
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AC_CHECK_TYPE(a,b,c,d)
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#to-here)
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AC_OUTPUT
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]])
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AT_CHECK_AUTOCONF
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AT_CHECK([[sed -e '/^#(cut-from-here/,/^#to-here)/!d' -e '/^#/d' configure]],
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0,
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[NEW
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OLD
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OLD
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OLD
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OLD
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NEW
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])
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AT_CLEANUP
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# AC_CHECK_FILES
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# --------------
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# FIXME: To really test HAVE_AC_EXISTS2 and HAVE_AC_MISSING2 we need to
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# open AH_TEMPLATE to `configure.ac', which is not yet the case.
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AT_CHECK_MACRO([AC_CHECK_FILES],
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[touch at-exists1 at-exists2
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ac_exists2=at-exists2
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ac_missing2=at-missing2
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AC_CHECK_FILES(at-exists1 at-missing1 $ac_exists2 $ac_missing2)
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rm at-exists1 at-exists2],
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[AT_CHECK_DEFINES(
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[#define HAVE_AT_EXISTS1 1
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/* #undef HAVE_AT_MISSING1 */
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])])
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## ------------------------------ ##
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## AC_CHECK_PROG & AC_PATH_PROG. ##
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## ------------------------------ ##
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# AT_CHECK_PROGS_PREPARE
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# ----------------------
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# Create a sub directory `path' with 6 subdirs which all 7 contain
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# an executable `tool'. `6' contains a `better' tool.
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m4_define([AT_CHECK_PROGS_PREPARE],
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[mkdir path
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cat >path/tool <<\EOF
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#! /bin/sh
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exit 0
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EOF
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chmod +x path/tool
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for i in 1 2 3 4 5 6
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do
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mkdir path/$i
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cp path/tool path/$i
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done
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cp path/tool path/6/better])
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# -------------------------------- #
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# AC_CHECK_PROG & AC_CHECK_PROGS. #
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# -------------------------------- #
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AT_SETUP([AC_CHECK_PROG & AC_CHECK_PROGS])
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AT_CHECK_PROGS_PREPARE
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AT_DATA([configure.ac],
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[[AC_INIT
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pwd=`pwd`
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p="1${PATH_SEPARATOR}2${PATH_SEPARATOR}3${PATH_SEPARATOR}4${PATH_SEPARATOR}5${PATH_SEPARATOR}6"
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path=`echo $p | sed -e 's,\([[0-9]]\),'"$pwd"'/path/\1,g'`
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fail=false
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AC_CHECK_PROG(TOOL1, tool, found, not-found, $path)
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test "$TOOL1" = found || fail=:
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# Yes, the semantics of this macro is weird.
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AC_CHECK_PROG(TOOL2, tool,, not-found, $path)
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test "$TOOL2" = not-found || fail=:
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AC_CHECK_PROG(TOOL3, tool, tool, not-found, $path, $pwd/path/1/tool)
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test "$TOOL3" = "$pwd/path/2/tool" || fail=:
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AC_CHECK_PROG(TOOL4, better, better, not-found, $path, $pwd/path/1/tool)
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test "$TOOL4" = better || fail=:
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# When a tool is not found, and no value is given for not-found,
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# the variable is left empty.
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AC_CHECK_PROGS(TOOL5, missing,, $path)
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test -z "$TOOL5" || fail=:
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AC_CHECK_PROGS(TOOL6, missing tool better,, $path)
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test "$TOOL6" = tool || fail=:
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# No AC-OUTPUT, we don't need config.status.
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$fail &&
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AC_MSG_ERROR([[CHECK_PROG failed]])
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AS_EXIT(0)
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]])
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AT_CHECK_AUTOCONF
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AT_CHECK_CONFIGURE
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AT_CLEANUP
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## ---------------- ##
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## AC_C_BIGENDIAN. ##
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## ---------------- ##
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AT_SETUP([AC_C_BIGENDIAN])
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AT_KEYWORDS([cross])
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# Make sure that AC_C_BIGENDIAN behave the same whether we are
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# cross-compiling or not.
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_AT_CHECK_AC_MACRO(
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[[AC_C_BIGENDIAN(
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[ac_endian=big],
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[ac_endian=little],
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[ac_endian=unknown],
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[ac_endian=universal])
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echo $ac_endian > at-endian
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]])
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rm -f config.hin # So that next run of autoheader is quiet.
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_AT_CHECK_AC_MACRO(
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[[# Force cross compiling.
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|
cross_compiling=yes
|
|
ac_tool_warned=yes
|
|
AC_C_BIGENDIAN(
|
|
[ac_endian=big],
|
|
[ac_endian=little],
|
|
[ac_endian=unknown],
|
|
[ac_endian=universal])
|
|
ac_prevendian=`cat at-endian`
|
|
# Check that we have found the same result as in the previous run
|
|
# or unknown (because the cross-compiling check is allowed to fail;
|
|
# although it might be interesting to suppress this comparison, just
|
|
# to know on which system it fails if it ever does).
|
|
if test $ac_endian != $ac_prevendian && test $ac_endian != unknown; then
|
|
AC_MSG_ERROR([unexpected endianness: first run found '$ac_prevendian' but second run found '$ac_endian'])
|
|
fi
|
|
]])
|
|
|
|
# Make sure AC_C_BIGENDIAN with no argument will create a config.h template
|
|
# containing "WORDS_BIGENDIAN".
|
|
AT_CONFIGURE_AC([[AC_C_BIGENDIAN]])
|
|
# --force is necessary, the computer might be too fast.
|
|
AT_CHECK_AUTOHEADER([--force])
|
|
AT_CHECK([grep WORDS_BIGENDIAN config.hin], [], [ignore])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
# ------------------------------ #
|
|
# AC_PATH_PROG & AC_PATH_PROGS. #
|
|
# ------------------------------ #
|
|
|
|
AT_SETUP([AC_PATH_PROG & AC_PATH_PROGS])
|
|
|
|
AT_CHECK_PROGS_PREPARE
|
|
|
|
AT_DATA([configure.ac],
|
|
[[AC_INIT
|
|
pwd=`pwd`
|
|
p="1${PATH_SEPARATOR}2${PATH_SEPARATOR}3${PATH_SEPARATOR}4${PATH_SEPARATOR}5${PATH_SEPARATOR}6"
|
|
path=`echo $p | sed -e 's,\([[0-9]]\),'"$pwd"'/path/\1,g'`
|
|
fail=false
|
|
|
|
AC_PATH_PROG(TOOL1, tool, not-found, $path)
|
|
test "$TOOL1" = "$pwd/path/1/tool" || fail=:
|
|
|
|
AC_PATH_PROG(TOOL2, better, not-found, $path)
|
|
test "$TOOL2" = "$pwd/path/6/better" || fail=:
|
|
|
|
# When a tool is not found, and no value is given for not-found,
|
|
# the variable is left empty.
|
|
AC_PATH_PROGS(TOOL3, missing,, $path)
|
|
test -z "$TOOL3" || fail=:
|
|
|
|
AC_PATH_PROGS(TOOL4, missing tool better,, $path)
|
|
test "$TOOL4" = "$pwd/path/1/tool" || fail=:
|
|
|
|
# No AC-OUTPUT, we don't need config.status.
|
|
$fail &&
|
|
AC_MSG_ERROR([[PATH_PROG failed]])
|
|
AS_EXIT(0)
|
|
]])
|
|
|
|
AT_CHECK_AUTOCONF
|
|
AT_CHECK_CONFIGURE
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
# ----------------------------- #
|
|
# AC_PATH_PROGS_FEATURE_CHECK. #
|
|
# ----------------------------- #
|
|
|
|
AT_SETUP([AC_PATH_PROGS_FEATURE_CHECK])
|
|
|
|
# This test doesn't work if `pwd` contains white space
|
|
case `pwd` in
|
|
*\ * | *\ *) AT_CHECK([exit 77]) ;;
|
|
esac
|
|
|
|
AT_CHECK_PROGS_PREPARE
|
|
|
|
AT_DATA([configure.ac],
|
|
[[AC_INIT
|
|
pwd=`pwd`
|
|
p="1${PATH_SEPARATOR}2${PATH_SEPARATOR}3${PATH_SEPARATOR}4${PATH_SEPARATOR}5${PATH_SEPARATOR}6"
|
|
path=`echo $p | sed -e 's,\([[0-9]]\),'"$pwd"'/path/\1,g'`
|
|
fail=false
|
|
|
|
# Find first candidate and stop search
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL1, [tool better],
|
|
[$ac_path_TOOL1 && ac_cv_path_TOOL1=$ac_path_TOOL1 ac_path_TOOL1_found=:],
|
|
fail=:, $path)
|
|
test -z "$TOOL1" || fail=:
|
|
test "$ac_cv_path_TOOL1" = "$pwd/path/1/tool" || fail=:
|
|
|
|
# Keep searching each candidate
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL2, [tool better],
|
|
[$ac_path_TOOL2 && ac_cv_path_TOOL2=$ac_path_TOOL2],
|
|
fail=:, $path)
|
|
test "$ac_cv_path_TOOL2" = "$pwd/path/6/better" || fail=:
|
|
|
|
# Only accept better candidate
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL3, [tool better],
|
|
[case "$ac_path_TOOL3" in #(
|
|
*better) ac_cv_path_TOOL3=$ac_path_TOOL3;;
|
|
esac],
|
|
fail=:, $path)
|
|
test "$ac_cv_path_TOOL3" = "$pwd/path/6/better" || fail=:
|
|
|
|
# When a tool is not found, and no action is given for not-found,
|
|
# the variable is left empty.
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL4, missing,
|
|
[ac_cv_path_TOOL4=$ac_path_TOOL4], [], $path)
|
|
test -z "$ac_cv_path_TOOL4" || fail=:
|
|
|
|
# Test action when tool is not found
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL5, missing, [],
|
|
[ac_cv_path_TOOL5='not found'], $path)
|
|
test "$ac_cv_path_TOOL5" = "not found" || fail=:
|
|
|
|
# Test that pre-set tool bypasses feature test
|
|
TOOL6=$pwd/path/6/better
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL6, tool, fail=:, fail=:, $path)
|
|
test "$ac_cv_path_TOOL6" = "$pwd/path/6/better" || fail=:
|
|
|
|
# A blank pre-set does not bypass feature test
|
|
TOOL7=
|
|
AC_PATH_PROGS_FEATURE_CHECK(TOOL7, [tool better],
|
|
[$ac_path_TOOL7 && ac_cv_path_TOOL7=$ac_path_TOOL7 ac_path_TOOL7_found=:],
|
|
fail=:, $path)
|
|
test -z "$TOOL7" || fail=:
|
|
test "$ac_cv_path_TOOL7" = "$pwd/path/1/tool" || fail=:
|
|
|
|
# No AC-OUTPUT, we don't need config.status.
|
|
$fail &&
|
|
AC_MSG_ERROR([[PATH_PROG failed]])
|
|
AS_EXIT(0)
|
|
]])
|
|
|
|
AT_CHECK_AUTOCONF
|
|
AT_CHECK_CONFIGURE
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
|
|
## -------------- ##
|
|
## AC_PATH_XTRA. ##
|
|
## -------------- ##
|
|
|
|
|
|
AT_SETUP([AC_PATH_XTRA])
|
|
|
|
_AT_CHECK_AC_MACRO([AC_PATH_XTRA])
|
|
|
|
# Check X_DISPLAY_MISSING.
|
|
AT_CHECK_CONFIGURE([--without-x])
|
|
AT_CHECK_DEFINES(
|
|
[#define X_DISPLAY_MISSING 1
|
|
])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ------------------------------- ##
|
|
## Obsolete non-updatable macros. ##
|
|
## ------------------------------- ##
|
|
|
|
|
|
AT_CHECK_MACRO([AC_SYS_RESTARTABLE_SYSCALLS], , ,[-W no-obsolete])
|
|
AT_CHECK_MACRO([AC_FUNC_SETVBUF_REVERSED], , ,[-W no-obsolete])
|
|
AT_CHECK_MACRO([AC_FUNC_WAIT3], , ,[-W no-obsolete])
|