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Annotation of embedaddon/libiconv/m4/endian.m4, revision 1.1

1.1     ! misho       1: dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
        !             2: dnl This file is free software, distributed under the terms of the GNU
        !             3: dnl General Public License.  As a special exception to the GNU General
        !             4: dnl Public License, this file may be distributed as part of a program
        !             5: dnl that contains a configuration script generated by Autoconf, under
        !             6: dnl the same distribution terms as the rest of that program.
        !             7: 
        !             8: dnl From Bruno Haible, Marcus Daniels.
        !             9: 
        !            10: AC_PREREQ(2.13)
        !            11: 
        !            12: AC_DEFUN([CL_WORDS_LITTLEENDIAN],
        !            13: [AC_CACHE_CHECK(byte ordering, cl_cv_sys_endian, [
        !            14: AC_TRY_RUN([int main () {
        !            15:   /* Are we little or big endian?  From Harbison&Steele.  */
        !            16:   union
        !            17:   {
        !            18:     long l;
        !            19:     char c[sizeof (long)];
        !            20:   } u;
        !            21:   u.l = 1;
        !            22:   exit (u.c[0] == 1);
        !            23: }],
        !            24: cl_cv_sys_endian="big endian",
        !            25: cl_cv_sys_endian="little endian",
        !            26: : # must guess the endianness
        !            27: )
        !            28: if test -z "$cl_cv_sys_endian"; then
        !            29: AC_EGREP_CPP(yes,[#if defined(m68k) || defined(__m68k__) || defined(mc68000) || defined(mc68020) || defined(__mc68020__) || defined(sparc) || defined(__sparc__) || defined(MIPSEB) || defined(__MIPSEB__) || defined(hppa) || defined(__hppa) || defined(m88000) || defined(__m88k__)
        !            30:   yes
        !            31: #endif
        !            32: ], cl_cv_sys_endian="big endian")
        !            33: fi
        !            34: if test -z "$cl_cv_sys_endian"; then
        !            35: AC_EGREP_CPP(yes,[#if defined(i386) || defined(__i386) || defined(__i386__) || defined(_I386) || defined(MIPSEL) || defined(__MIPSEL__) || defined(__alpha)
        !            36:   yes
        !            37: #endif
        !            38: ], cl_cv_sys_endian="little endian")
        !            39: fi
        !            40: if test -z "$cl_cv_sys_endian"; then
        !            41: cl_cv_sys_endian="guessing little endian"
        !            42: fi
        !            43: ])
        !            44: case "$cl_cv_sys_endian" in
        !            45:   *little*)
        !            46:     AC_DEFINE(WORDS_LITTLEENDIAN, 1,
        !            47:       [Define if the machine's byte ordering is little endian.]) ;;
        !            48:   *big*) ;;
        !            49: esac
        !            50: ])