| 1 | AC_DEFUN([AC_COMPILE_CHECK_SIZEOF],
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| 2 | [changequote(<<, >>)dnl
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| 3 | dnl The name to #define.
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| 4 | define(<<AC_TYPE_NAME>>, translit(sizeof_$1, [a-z *], [A-Z_P]))dnl
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| 5 | dnl The cache variable name.
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| 6 | define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$1, [ *], [_p]))dnl
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| 7 | changequote([, ])dnl
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| 8 | AC_MSG_CHECKING(size of $1)
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| 9 | AC_CACHE_VAL(AC_CV_NAME,
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| 10 | [for ac_size in 4 8 1 2 16 12 $2 ; do # List sizes in rough order of prevalence.
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| 11 | AC_TRY_COMPILE([#include "confdefs.h"
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| 12 | #include <sys/types.h>
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| 13 | $2
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| 14 | ], [switch (0) case 0: case (sizeof ($1) == $ac_size):;], AC_CV_NAME=$ac_size)
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| 15 | if test x$AC_CV_NAME != x ; then break; fi
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| 16 | done
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| 17 | ])
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| 18 | if test x$AC_CV_NAME = x ; then
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| 19 | AC_MSG_ERROR([cannot determine a size for $1])
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| 20 | fi
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| 21 | AC_MSG_RESULT($AC_CV_NAME)
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| 22 | AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The number of bytes in type $1])
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| 23 | undefine([AC_TYPE_NAME])dnl
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| 24 | undefine([AC_CV_NAME])dnl
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| 25 | ])
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| 26 |
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| 27 | AC_DEFUN(LIBGCJ_CONFIGURE,
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| 28 | [
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| 29 | dnl Default to --enable-multilib
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| 30 | AC_ARG_ENABLE(multilib,
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| 31 | [ --enable-multilib build many library versions (default)],
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| 32 | [case "${enableval}" in
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| 33 | yes) multilib=yes ;;
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| 34 | no) multilib=no ;;
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| 35 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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| 36 | esac], [multilib=yes])dnl
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| 37 |
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| 38 | dnl We may get other options which we don't document:
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| 39 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
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| 40 |
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| 41 | # When building with srcdir == objdir, links to the source files will
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