| 1 | # -*- Autotest -*-
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| 2 |
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| 3 | AT_BANNER([Semantics.])
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| 4 |
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| 5 | # Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006 Free Software
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| 6 | # Foundation, Inc.
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| 7 | #
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| 8 | # This program is free software; you can redistribute it and/or modify
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| 9 | # it under the terms of the GNU General Public License as published by
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| 10 | # the Free Software Foundation; either version 2, or (at your option)
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| 11 | # any later version.
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| 12 | #
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| 13 | # This program is distributed in the hope that it will be useful,
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| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | # GNU General Public License for more details.
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| 17 | #
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| 18 | # You should have received a copy of the GNU General Public License
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| 19 | # along with this program; if not, write to the Free Software
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| 20 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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| 21 | # 02110-1301, USA.
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| 22 |
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| 23 |
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| 24 | ## -------------------------------- ##
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| 25 | ## Members of the AC_CHECK family. ##
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| 26 | ## -------------------------------- ##
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| 27 |
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| 28 |
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| 29 | # AC_CHECK_LIB
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| 30 | # ------------
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| 31 | # Well, I can't imagine a system where `cos' is neither in libc, nor
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| 32 | # in libm. Nor can I imagine a lib more likely to exists than libm.
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| 33 | # But there are systems without libm, on which we don't want to have
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| 34 | # this test fail, so exit successfully if `cos' is in libc.
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| 35 | AT_CHECK_MACRO([AC_CHECK_LIB],
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| 36 | [AC_TRY_LINK_FUNC(cos,
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| 37 | [AC_MSG_ERROR([`cos' is in `libc'], 77)])
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| 38 |
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| 39 | AC_CHECK_LIB(m, cos,,
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| 40 | [AC_MSG_ERROR([cannot find `cos' in `libm'])])
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| 41 |
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| 42 | # No kidding, using variables was broken in 2.50 :(
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| 43 | ac_sin=sin
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| 44 | AC_CHECK_LIB(m, $ac_sin,,
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| 45 | [AC_MSG_ERROR([cannot find `\$ac_sin' (= `$ac_sin') in `libm'])])
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| 46 |
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| 47 | ac_m=m
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| 48 | AC_CHECK_LIB($ac_m, acos,,
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| 49 | [AC_MSG_ERROR([cannot find `acos' in `\$ac_m' (= `$ac_m')])])
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| 50 |
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| 51 | ac_asin=asin
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| 52 | AC_CHECK_LIB($ac_m, $ac_asin,,
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| 53 | [AC_MSG_ERROR([cannot find `\$ac_asin' (= `$ac_asin') in `\$ac_m' (= `$at_m')])])
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| 54 |
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| 55 | # But if the bug is in the caching mechanism, then be sure we
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| 56 | # correctly detect failures.
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| 57 |
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| 58 | AC_CHECK_LIB(m, cossack,
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| 59 | [AC_MSG_ERROR([found `cossack' in `libm'])])
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| 60 |
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| 61 | # No kidding, using variables was broken in 2.50 :(
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| 62 | ac_sinner=sinner
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| 63 | AC_CHECK_LIB(m, $ac_sinner,
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| 64 | [AC_MSG_ERROR([found `\$ac_sinner' (= `$ac_sinner') in `libm'])])
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| 65 |
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| 66 | ac_m=m
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| 67 | AC_CHECK_LIB($ac_m, acossack,
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| 68 | [AC_MSG_ERROR([found `acossack' in `\$ac_m' (= `$ac_m')])])
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| 69 |
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| 70 | ac_asinner=asinner
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| 71 | AC_CHECK_LIB($ac_m, $ac_asinner,
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| 72 | [AC_MSG_ERROR([found `\$ac_asinner' (= `$ac_asinner') in `\$ac_m' (= `$at_m')])])
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| 73 |
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| 74 | ])
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| 75 |
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| 76 |
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| 77 | # AC_SEARCH_LIBS
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| 78 | # --------------
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| 79 | AT_CHECK_MACRO([AC_SEARCH_LIBS],
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| 80 | [
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| 81 | AC_SEARCH_LIBS(cos, oser m ust,,
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| 82 | [AC_MSG_ERROR([cannot find `cos'])])
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| 83 |
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| 84 | case "$ac_cv_search_cos" in
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| 85 | -loser|-lust) AC_MSG_ERROR([jeez, $ac_cv_search_cos must be a cool library!]) ;;
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| 86 | esac
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| 87 | ])
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| 88 |
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| 89 |
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| 90 | # AC_SEARCH_LIBS (none needed)
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| 91 | # ----------------------------
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| 92 | AT_CHECK_MACRO([AC_SEARCH_LIBS (none needed)],
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| 93 | [
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| 94 | AC_SEARCH_LIBS(printf, oser c ust,,
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| 95 | [AC_MSG_ERROR([cannot find `printf'])])
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| 96 |
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| 97 | case "$ac_cv_search_printf" in
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| 98 | -loser|-lust) AC_MSG_ERROR([jeez, $ac_cv_search_printf must be a cool library!]) ;;
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| 99 | -lc) AC_MSG_ERROR([huh, you need to give -lc?])
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| 100 | esac
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| 101 | ])
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| 102 |
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| 103 |
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| 104 | # AC_CHECK_DECLS
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| 105 | # --------------
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| 106 | # Check that it performs the correct actions:
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| 107 | AT_CHECK_MACRO([AC_CHECK_DECLS],
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| 108 | [[AC_CHECK_DECLS([yes, no, myenum, mystruct, myfunc, mymacro1, mymacro2],,,
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| 109 | [[int yes = 1;
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| 110 | enum { myenum };
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| 111 | struct { int x[20]; } mystruct;
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| 112 | extern int myfunc();
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| 113 | #define mymacro1(arg) arg
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| 114 | #define mymacro2]])]],
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| 115 | [AT_CHECK_DEFINES(
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| 116 | [#define HAVE_DECL_MYENUM 1
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| 117 | #define HAVE_DECL_MYFUNC 1
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| 118 | #define HAVE_DECL_MYMACRO1 1
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| 119 | #define HAVE_DECL_MYMACRO2 1
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| 120 | #define HAVE_DECL_MYSTRUCT 1
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| 121 | #define HAVE_DECL_NO 0
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| 122 | #define HAVE_DECL_YES 1
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| 123 | ])])
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| 124 |
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| 125 |
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| 126 | # AC_CHECK_FUNCS
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| 127 | # --------------
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| 128 | # Check that it performs the correct actions:
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| 129 | # Must define HAVE_PRINTF, but not HAVE_AUTOCONF_FTNIRP
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| 130 | AT_CHECK_MACRO([AC_CHECK_FUNCS],
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| 131 | [AC_CHECK_FUNCS(printf autoconf_ftnirp)],
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| 132 | [AT_CHECK_DEFINES(
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| 133 | [/* #undef HAVE_AUTOCONF_FTNIRP */
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| 134 | #define HAVE_PRINTF 1
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| 135 | ])])
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| 136 |
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| 137 |
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| 138 | # AC_REPLACE_FUNCS
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| 139 | # ----------------
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| 140 | # Check that it performs the correct actions: autoconf_ftnirp.c must
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| 141 | # be compiled, and must define HAVE_PRINTF, but not HAVE_AUTOCONF_FTNIRP
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| 142 | # FIXME: Maybe check the traces?
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| 143 | AT_SETUP([AC_REPLACE_FUNCS])
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| 144 |
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| 145 | AT_DATA([config.in],
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| 146 | [@LIBOBJS@
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| 147 | ])
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| 148 |
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| 149 | AT_CONFIGURE_AC(
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| 150 | [AC_CONFIG_FILES(config.libobjs:config.in)
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| 151 | AC_REPLACE_FUNCS(printf autoconf_ftnirp)])
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| 152 |
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| 153 | AT_CHECK_AUTOCONF([-W obsolete])
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| 154 | AT_CHECK_AUTOHEADER
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| 155 | AT_CHECK_CONFIGURE
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| 156 | AT_CHECK_ENV
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| 157 | AT_CHECK_DEFINES(
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| 158 | [/* #undef HAVE_AUTOCONF_FTNIRP */
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| 159 | #define HAVE_PRINTF 1
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| 160 | ])
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| 161 |
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| 162 | AT_CHECK([sed 's/ */ /g;s/^ //;s/ $//' config.libobjs], [],
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| 163 | [${LIBOBJDIR}autoconf_ftnirp$U.o
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| 164 | ])
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| 165 |
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| 166 | AT_CLEANUP([config.libobjs])
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| 167 |
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| 168 |
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| 169 | # AC_CHECK_HEADERS
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| 170 | # ----------------
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| 171 | # Check that it performs the correct actions:
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| 172 | # Must define HAVE_STDIO_H, but not HAVE_AUTOCONF_IO_H.
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| 173 | AT_CHECK_MACRO([AC_CHECK_HEADERS],
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| 174 | [AC_CHECK_HEADERS(stdio.h autoconf_io.h)],
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| 175 | [AT_CHECK_DEFINES(
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| 176 | [/* #undef HAVE_AUTOCONF_IO_H */
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| 177 | #define HAVE_STDIO_H 1
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| 178 | ])])
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| 179 |
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| 180 |
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| 181 | # AC_CHECK_HEADERS_OLD
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| 182 | # --------------------
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| 183 | # Check that it performs the correct actions:
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| 184 | # Must not check prerequisites, hence define header2.h
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| 185 | AT_SETUP([AC_CHECK_HEADERS_OLD])
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| 186 |
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| 187 | AT_DATA([header1.h],
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| 188 | [typedef int foo;
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| 189 | ])
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| 190 |
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| 191 | AT_DATA([header2.h],
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| 192 | [typedef foo bar;
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| 193 | ])
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| 194 |
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| 195 | AT_CONFIGURE_AC([AC_CHECK_HEADERS(header2.h, [], [], -)])
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| 196 |
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| 197 | AT_CHECK_AUTOCONF([-W obsolete])
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| 198 | AT_CHECK_AUTOHEADER
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| 199 | AT_CHECK_CONFIGURE([CPPFLAGS=-I.])
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| 200 | AT_CHECK_ENV
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| 201 | AT_CHECK_DEFINES(
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| 202 | [#define HAVE_HEADER2_H 1
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| 203 | ])
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| 204 |
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| 205 | AT_CLEANUP([header1.h header2.h])
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| 206 |
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| 207 |
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| 208 | # AC_CHECK_HEADERS_NEW
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| 209 | # --------------------
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| 210 | # Check that it performs the correct actions:
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| 211 | # Must check prerequisites, hence define header2.h but not header3.h
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| 212 | AT_SETUP([AC_CHECK_HEADERS_NEW])
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| 213 |
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| 214 | AT_DATA([header1.h],
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| 215 | [typedef int foo;
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| 216 | ])
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| 217 |
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| 218 | AT_DATA([header2.h],
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| 219 | [typedef foo bar;
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| 220 | ])
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| 221 |
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| 222 | AT_DATA([header3.h],
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| 223 | [typedef bar wow;
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| 224 | ])
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| 225 |
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| 226 | AT_CONFIGURE_AC(
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| 227 | [AC_CHECK_HEADERS(header2.h header3.h, [], [], [[@%:@include "header1.h"]])])
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| 228 |
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| 229 | AT_CHECK_AUTOCONF([-W obsolete])
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| 230 | AT_CHECK_AUTOHEADER
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| 231 | AT_CHECK_CONFIGURE([CPPFLAGS=-I.])
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| 232 | AT_CHECK_ENV
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| 233 | AT_CHECK_DEFINES(
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| 234 | [#define HAVE_HEADER2_H 1
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| 235 | /* #undef HAVE_HEADER3_H */
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| 236 | ])
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| 237 |
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| 238 | AT_CLEANUP([header1.h header2.h header3.h])
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| 239 |
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| 240 |
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| 241 | # AC_CHECK_MEMBERS
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| 242 | # ----------------
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| 243 | # Check that it performs the correct actions.
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| 244 | # Must define HAVE_STRUCT_YES_S_YES, but not HAVE_STRUCT_YES_S_NO.
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| 245 | AT_CHECK_MACRO([AC_CHECK_MEMBERS],
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| 246 | [[AC_CHECK_MEMBERS([struct yes_s.yes, struct yes_s.no, struct yes_s.substruct],,,
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| 247 | [struct sub { int x; };
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| 248 | struct yes_s { int yes; struct sub substruct; };])]],
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| 249 | [AT_CHECK_DEFINES(
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| 250 | [/* #undef HAVE_STRUCT_YES_S_NO */
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| 251 | #define HAVE_STRUCT_YES_S_SUBSTRUCT 1
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| 252 | #define HAVE_STRUCT_YES_S_YES 1
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| 253 | ])])
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| 254 |
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| 255 |
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| 256 | # AC_CHECK_ALIGNOF
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| 257 | # ----------------
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| 258 | AT_CHECK_MACRO_CROSS([AC_CHECK_ALIGNOF],
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| 259 | [[AC_CHECK_ALIGNOF(char)
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| 260 | AC_CHECK_ALIGNOF(charchar,
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| 261 | [[#include <stddef.h>
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| 262 | #include <stdio.h>
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| 263 | typedef char charchar[2];]])
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| 264 | AC_CHECK_ALIGNOF(charcharchar)
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| 265 | ]],
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| 266 | [AT_CHECK_DEFINES(
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| 267 | [#define ALIGNOF_CHAR 1
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| 268 | #define ALIGNOF_CHARCHAR 1
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| 269 | #define ALIGNOF_CHARCHARCHAR 0
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| 270 | ])])
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| 271 |
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| 272 |
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| 273 | # AC_CHECK_ALIGNOF struct
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| 274 | # -----------------------
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| 275 | AT_CHECK_MACRO_CROSS([AC_CHECK_ALIGNOF struct],
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| 276 | [[AC_CHECK_ALIGNOF([struct { char c; }])
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| 277 | AC_CHECK_ALIGNOF([struct nosuchstruct])
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| 278 | ]],
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| 279 | [AT_CHECK([[grep "#define ALIGNOF_STRUCT___CHAR_C___ [^0]" config.h]],
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| 280 | 0, ignore)
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| 281 | AT_CHECK([[grep "#define ALIGNOF_STRUCT_NOSUCHSTRUCT 0" config.h]],
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| 282 | 0, ignore)
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| 283 | ])
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| 284 |
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| 285 | # AC_CHECK_SIZEOF
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| 286 | # ---------------
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| 287 | AT_CHECK_MACRO_CROSS([AC_CHECK_SIZEOF],
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| 288 | [[AC_CHECK_SIZEOF(char)
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| 289 | AC_CHECK_SIZEOF(charchar,,
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| 290 | [[#include <stdio.h>
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| 291 | typedef char charchar[2];]])
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| 292 | AC_CHECK_SIZEOF(charcharchar)
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| 293 | ]],
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| 294 | [AT_CHECK_DEFINES(
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| 295 | [#define SIZEOF_CHAR 1
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| 296 | #define SIZEOF_CHARCHAR 2
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| 297 | #define SIZEOF_CHARCHARCHAR 0
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| 298 | ])])
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| 299 |
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| 300 |
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| 301 | # AC_CHECK_SIZEOF struct
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| 302 | # ----------------------
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| 303 | AT_CHECK_MACRO_CROSS([AC_CHECK_SIZEOF struct],
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| 304 | [[AC_C_CONST
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| 305 | AC_CHECK_SIZEOF([struct { char c; int x; }])
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| 306 | AC_CHECK_SIZEOF([const struct { const char *p; int x; }])
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| 307 | AC_CHECK_SIZEOF([struct nosuchstruct])
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| 308 | ]],
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| 309 | [AT_CHECK([[grep "#define SIZEOF_STRUCT___CHAR_C__INT_X___ [^0]" config.h]],
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| 310 | 0, ignore)
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| 311 | AT_CHECK([[grep "#define SIZEOF_CONST_STRUCT___CONST_CHAR_PP__INT_X___ [^0]" config.h]],
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| 312 | 0, ignore)
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| 313 | AT_CHECK([[grep "#define SIZEOF_STRUCT_NOSUCHSTRUCT 0" config.h]],
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| 314 | 0, ignore)
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| 315 | ])
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| 316 |
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| 317 |
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| 318 | # AC_CHECK_TYPES
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| 319 | # --------------
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| 320 | # Check that it performs the correct actions.
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| 321 | # Must define HAVE_STRUCT_YES_S, HAVE_INT, but not HAVE_STRUCT_NO_S.
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| 322 | # `int' and `struct yes_s' are both checked to test both the compiler
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| 323 | # builtin types, and defined types.
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| 324 | AT_CHECK_MACRO([AC_CHECK_TYPES],
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| 325 | [[AC_CHECK_TYPES([int, struct yes_s, struct no_s],,,
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| 326 | [struct yes_s { int yes ;} ;])]],
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| 327 | [AT_CHECK_DEFINES(
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| 328 | [#define HAVE_INT 1
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| 329 | /* #undef HAVE_STRUCT_NO_S */
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| 330 | #define HAVE_STRUCT_YES_S 1
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| 331 | ])])
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| 332 |
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| 333 |
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| 334 | # AC_CHECK_TYPES
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| 335 | # --------------
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| 336 | # Check that we properly dispatch properly to the old implementation
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| 337 | # or to the new one.
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| 338 | AT_SETUP([AC_CHECK_TYPES: backward compatibility])
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| 339 |
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| 340 | AT_DATA([configure.ac],
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| 341 | [[AC_INIT
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| 342 | define([_AC_CHECK_TYPE_NEW], [NEW])
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| 343 | define([_AC_CHECK_TYPE_OLD], [OLD])
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| 344 | #(cut-from-here
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| 345 | AC_CHECK_TYPE(ptrdiff_t)
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| 346 | AC_CHECK_TYPE(ptrdiff_t, int)
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| 347 | AC_CHECK_TYPE(quad, long long int)
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| 348 | AC_CHECK_TYPE(table_42, [int[42]])
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| 349 | # Nice machine!
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| 350 | AC_CHECK_TYPE(uint8_t, uint65536_t)
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| 351 | AC_CHECK_TYPE(a,b,c,d)
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| 352 | #to-here)
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| 353 | AC_OUTPUT
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| 354 | ]])
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| 355 |
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| 356 | AT_CHECK_AUTOCONF
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| 357 | AT_CHECK([[sed -e '/^#(cut-from-here/,/^#to-here)/!d' -e '/^#/d' configure]],
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| 358 | 0,
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| 359 | [NEW
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| 360 | OLD
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| 361 | OLD
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| 362 | OLD
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| 363 | OLD
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| 364 | NEW
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| 365 | ])
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| 366 |
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| 367 | AT_CLEANUP
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| 368 |
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| 369 |
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| 370 | # AC_CHECK_FILES
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| 371 | # --------------
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| 372 | # FIXME: To really test HAVE_AC_EXISTS2 and HAVE_AC_MISSING2 we need to
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| 373 | # open AH_TEMPLATE to `configure.ac', which is not yet the case.
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| 374 | AT_CHECK_MACRO([AC_CHECK_FILES],
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| 375 | [touch at-exists1 at-exists2
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| 376 | ac_exists2=at-exists2
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| 377 | ac_missing2=at-missing2
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| 378 | AC_CHECK_FILES(at-exists1 at-missing1 $ac_exists2 $ac_missing2)
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| 379 | rm at-exists1 at-exists2],
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| 380 | [AT_CHECK_DEFINES(
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| 381 | [#define HAVE_AT_EXISTS1 1
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| 382 | /* #undef HAVE_AT_MISSING1 */
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| 383 | ])])
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| 384 |
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| 385 |
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| 386 |
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| 387 | ## ------------------------------ ##
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| 388 | ## AC_CHECK_PROG & AC_PATH_PROG. ##
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| 389 | ## ------------------------------ ##
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| 390 |
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| 391 |
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| 392 | # AT_CHECK_PROGS_PREPARE
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| 393 | # ----------------------
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| 394 | # Create a sub directory `path' with 6 subdirs which all 7 contain
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| 395 | # an executable `tool'. `6' contains a `better' tool.
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| 396 | m4_define([AT_CHECK_PROGS_PREPARE],
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| 397 | [mkdir path
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| 398 |
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| 399 | cat >path/tool <<\EOF
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| 400 | #! /bin/sh
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| 401 | exit 0
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| 402 | EOF
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| 403 | chmod +x path/tool
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| 404 |
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| 405 | for i in 1 2 3 4 5 6
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| 406 | do
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| 407 | mkdir path/$i
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| 408 | cp path/tool path/$i
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| 409 | done
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| 410 | cp path/tool path/6/better])
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| 411 |
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| 412 |
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| 413 | # -------------------------------- #
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| 414 | # AC_CHECK_PROG & AC_CHECK_PROGS. #
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| 415 | # -------------------------------- #
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| 416 |
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| 417 | AT_SETUP([AC_CHECK_PROG & AC_CHECK_PROGS])
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| 418 |
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| 419 | AT_CHECK_PROGS_PREPARE
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| 420 |
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| 421 | AT_DATA([configure.ac],
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| 422 | [[AC_INIT
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| 423 | pwd=`pwd`
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| 424 | p="1${PATH_SEPARATOR}2${PATH_SEPARATOR}3${PATH_SEPARATOR}4${PATH_SEPARATOR}5${PATH_SEPARATOR}6"
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| 425 | path=`echo $p | sed -e 's,\([[0-9]]\),'"$pwd"'/path/\1,g'`
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| 426 | fail=false
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| 427 |
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| 428 | AC_CHECK_PROG(TOOL1, tool, found, not-found, $path)
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| 429 | test "$TOOL1" = found || fail=:
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| 430 |
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| 431 | # Yes, the semantics of this macro is weird.
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| 432 | AC_CHECK_PROG(TOOL2, tool,, not-found, $path)
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| 433 | test "$TOOL2" = not-found || fail=:
|
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| 434 |
|
|---|
| 435 | AC_CHECK_PROG(TOOL3, tool, tool, not-found, $path, $pwd/path/1/tool)
|
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| 436 | test "$TOOL3" = "$pwd/path/2/tool" || fail=:
|
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| 437 |
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| 438 | AC_CHECK_PROG(TOOL4, better, better, not-found, $path, $pwd/path/1/tool)
|
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| 439 | test "$TOOL4" = better || fail=:
|
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| 440 |
|
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| 441 | # When a tool is not found, and no value is given for not-found,
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| 442 | # the variable is left empty.
|
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| 443 | AC_CHECK_PROGS(TOOL5, missing,, $path)
|
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| 444 | test -z "$TOOL5" || fail=:
|
|---|
| 445 |
|
|---|
| 446 | AC_CHECK_PROGS(TOOL6, missing tool better,, $path)
|
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| 447 | test "$TOOL6" = tool || fail=:
|
|---|
| 448 |
|
|---|
| 449 | # No AC-OUTPUT, we don't need config.status.
|
|---|
| 450 | $fail &&
|
|---|
| 451 | AC_MSG_ERROR([[CHECK_PROG failed]])
|
|---|
| 452 | AS_EXIT(0)
|
|---|
| 453 | ]])
|
|---|
| 454 |
|
|---|
| 455 | AT_CHECK_AUTOCONF
|
|---|
| 456 | AT_CHECK_CONFIGURE
|
|---|
| 457 |
|
|---|
| 458 | AT_CLEANUP(path)
|
|---|
| 459 |
|
|---|
| 460 |
|
|---|
| 461 |
|
|---|
| 462 | ## ---------------- ##
|
|---|
| 463 | ## AC_C_BIGENDIAN. ##
|
|---|
| 464 | ## ---------------- ##
|
|---|
| 465 |
|
|---|
| 466 | AT_SETUP([AC_C_BIGENDIAN])
|
|---|
| 467 | AT_KEYWORDS([cross])
|
|---|
| 468 |
|
|---|
| 469 | # Make sure that AC_C_BIGENDIAN behave the same whether we are
|
|---|
| 470 | # cross-compiling or not.
|
|---|
| 471 |
|
|---|
| 472 | _AT_CHECK_AC_MACRO(
|
|---|
| 473 | [[AC_C_BIGENDIAN([ac_endian=big],[ac_endian=little],[ac_endian=unknown])
|
|---|
| 474 | echo $ac_endian > at-endian
|
|---|
| 475 | ]])
|
|---|
| 476 |
|
|---|
| 477 | rm -f config.hin # So that next run of autoheader is quiet.
|
|---|
| 478 | _AT_CHECK_AC_MACRO(
|
|---|
| 479 | [[# Force cross compiling.
|
|---|
| 480 | cross_compiling=yes
|
|---|
| 481 | ac_tool_warned=yes
|
|---|
| 482 | AC_C_BIGENDIAN([ac_endian=big],[ac_endian=little],[ac_endian=unknown])
|
|---|
| 483 | ac_prevendian=`cat at-endian`
|
|---|
| 484 | # Check that we have found the same result as in the previous run
|
|---|
| 485 | # or unknown (because the cross-compiling check is allowed to fail;
|
|---|
| 486 | # although it might be interesting to suppress this comparison, just
|
|---|
| 487 | # to know on which system it fails if it ever does).
|
|---|
| 488 | if test $ac_endian != $ac_prevendian && test $ac_endian != unknown; then
|
|---|
| 489 | AC_MSG_ERROR([unexpected endianness: first run found '$ac_prevendian' but second run found '$ac_endian'])
|
|---|
| 490 | fi
|
|---|
| 491 | ]])
|
|---|
| 492 |
|
|---|
| 493 | # Make sure AC_C_BIGENDIAN with no argument will define WORDS_BIGENDIAN
|
|---|
| 494 | AT_CONFIGURE_AC([[AC_C_BIGENDIAN]])
|
|---|
| 495 | # --force is necessary, the computer might be too fast.
|
|---|
| 496 | AT_CHECK_AUTOHEADER([--force])
|
|---|
| 497 | AT_CHECK([grep WORDS_BIGENDIAN config.hin], [], [ignore])
|
|---|
| 498 |
|
|---|
| 499 | AT_CLEANUP(at-endian)
|
|---|
| 500 |
|
|---|
| 501 |
|
|---|
| 502 | # ------------------------------ #
|
|---|
| 503 | # AC_PATH_PROG & AC_PATH_PROGS. #
|
|---|
| 504 | # ------------------------------ #
|
|---|
| 505 |
|
|---|
| 506 | AT_SETUP([AC_PATH_PROG & AC_PATH_PROGS])
|
|---|
| 507 |
|
|---|
| 508 | AT_CHECK_PROGS_PREPARE
|
|---|
| 509 |
|
|---|
| 510 | AT_DATA([configure.ac],
|
|---|
| 511 | [[AC_INIT
|
|---|
| 512 | pwd=`pwd`
|
|---|
| 513 | p="1${PATH_SEPARATOR}2${PATH_SEPARATOR}3${PATH_SEPARATOR}4${PATH_SEPARATOR}5${PATH_SEPARATOR}6"
|
|---|
| 514 | path=`echo $p | sed -e 's,\([[0-9]]\),'"$pwd"'/path/\1,g'`
|
|---|
| 515 | fail=false
|
|---|
| 516 |
|
|---|
| 517 | AC_PATH_PROG(TOOL1, tool, not-found, $path)
|
|---|
| 518 | test "$TOOL1" = "$pwd/path/1/tool" || fail=:
|
|---|
| 519 |
|
|---|
| 520 | AC_PATH_PROG(TOOL2, better, not-found, $path)
|
|---|
| 521 | test "$TOOL2" = "$pwd/path/6/better" || fail=:
|
|---|
| 522 |
|
|---|
| 523 | # When a tool is not found, and no value is given for not-found,
|
|---|
| 524 | # the variable is left empty.
|
|---|
| 525 | AC_PATH_PROGS(TOOL3, missing,, $path)
|
|---|
| 526 | test -z "$TOOL3" || fail=:
|
|---|
| 527 |
|
|---|
| 528 | AC_PATH_PROGS(TOOL4, missing tool better,, $path)
|
|---|
| 529 | test "$TOOL4" = "$pwd/path/1/tool" || fail=:
|
|---|
| 530 |
|
|---|
| 531 | # No AC-OUTPUT, we don't need config.status.
|
|---|
| 532 | $fail &&
|
|---|
| 533 | AC_MSG_ERROR([[PATH_PROG failed]])
|
|---|
| 534 | AS_EXIT(0)
|
|---|
| 535 | ]])
|
|---|
| 536 |
|
|---|
| 537 | AT_CHECK_AUTOCONF
|
|---|
| 538 | AT_CHECK_CONFIGURE
|
|---|
| 539 |
|
|---|
| 540 | AT_CLEANUP(path)
|
|---|
| 541 |
|
|---|
| 542 |
|
|---|
| 543 |
|
|---|
| 544 |
|
|---|
| 545 | ## -------------- ##
|
|---|
| 546 | ## AC_PATH_XTRA. ##
|
|---|
| 547 | ## -------------- ##
|
|---|
| 548 |
|
|---|
| 549 |
|
|---|
| 550 | AT_SETUP([AC_PATH_XTRA])
|
|---|
| 551 |
|
|---|
| 552 | _AT_CHECK_AC_MACRO([AC_PATH_XTRA])
|
|---|
| 553 |
|
|---|
| 554 | # Check X_DISPLAY_MISSING.
|
|---|
| 555 | AT_CHECK_CONFIGURE([--without-x])
|
|---|
| 556 | AT_CHECK_DEFINES(
|
|---|
| 557 | [#define X_DISPLAY_MISSING 1
|
|---|
| 558 | ])
|
|---|
| 559 |
|
|---|
| 560 | AT_CLEANUP
|
|---|
| 561 |
|
|---|
| 562 |
|
|---|
| 563 | ## ------------------------------- ##
|
|---|
| 564 | ## Obsolete non-updatable macros. ##
|
|---|
| 565 | ## ------------------------------- ##
|
|---|
| 566 |
|
|---|
| 567 |
|
|---|
| 568 | AT_CHECK_MACRO([AC_SYS_RESTARTABLE_SYSCALLS], , ,[-W no-obsolete])
|
|---|
| 569 | AT_CHECK_MACRO([AC_FUNC_WAIT3], , ,[-W no-obsolete])
|
|---|
