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dnl AC_FUNC_SCANDIR64_ARGTYPES
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dnl -------------------------
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dnl Determine the correct type to be passed to each of the `scandir64'
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dnl function's arguments, and define those types in `SCANDIR64_TYPE_ARG1',
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dnl `SCANDIR64_TYPE_ARG2', `SCANDIR64_TYPE_ARG3' and `SCANDIR64_TYPE_ARG4'.
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AN_FUNCTION([scandir64], [AC_FUNC_SCANDIR64_ARGTYPES])
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AC_DEFUN([AC_FUNC_SCANDIR64_ARGTYPES],
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[AC_CHECK_HEADERS(dirent.h)
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AC_CACHE_CHECK([types of arguments for scandir64],
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[ac_cv_func_scandir64_args],
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[for ac_return in 'int'; do
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for ac_arg1 in 'const char *name'; do
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for ac_arg2 in 'struct dirent64 ***name'; do
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for ac_arg3 in 'int(*name)(const struct dirent64 *)' 'int(*name)(struct dirent64 *)'; do
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for ac_arg4 in 'int(*name)(const void *,const void *)' 'int(*name)(const struct dirent64 **, const struct dirent64 **)'; do
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#define ac_arg1(name) $ac_arg1
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#define ac_arg2(name) $ac_arg2
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#define ac_arg3(name) $ac_arg3
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#define ac_arg4(name) $ac_arg4
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extern $ac_return scandir64 (ac_arg1(dirp), ac_arg2(namelist), ac_arg3(filter), ac_arg4(compar));])],
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[ac_cv_func_scandir64_args="$ac_return;$ac_arg1;$ac_arg2;$ac_arg3;$ac_arg4"; break 5])
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# Provide a safe default value.
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: ${ac_cv_func_scandir64_args='(default) int;const char *name;struct dirent64 ***name;int(*name)(const struct dirent64 *);int(*name)(const void *,const void *)'}
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ac_save_IFS=$IFS; IFS=';'
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set dummy `echo "$ac_cv_func_scandir64_args" | sed 's/^(default) //' | sed 's/\*/\*/g'`
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AC_DEFINE_UNQUOTED(SCANDIR64_TYPE_RETURN, $[1],
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[Define to the type of return value for `scandir64'.])
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AC_DEFINE_UNQUOTED(SCANDIR64_TYPE_ARG1(name), $[2],
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[Define to the type of arg 1 for `scandir64'.])
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AC_DEFINE_UNQUOTED(SCANDIR64_TYPE_ARG2(name), $[3],
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[Define to the type of arg 2 for `scandir64'.])
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AC_DEFINE_UNQUOTED(SCANDIR64_TYPE_ARG3(name), $[4],
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[Define to the type of arg 3 for `scandir64'.])
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AC_DEFINE_UNQUOTED(SCANDIR64_TYPE_ARG4(name), $[5],
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[Define to the type of arg 4 for `scandir64'.])
added
removed
m4/scandir64_argtypes.m4
