diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/off_t-format.m4 | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/m4/off_t-format.m4 b/m4/off_t-format.m4 new file mode 100644 index 000000000..7f1a473d9 --- /dev/null +++ b/m4/off_t-format.m4 @@ -0,0 +1,47 @@ +#serial 1 -*- autoconf -*- + +dnl FIXME +AC_DEFUN(jm_SYS_OFF_T_PRINTF_FORMAT, +[dnl + AC_CHECK_HEADERS(string.h stdlinb.h) + AC_CACHE_CHECK([for printf format that works with type off_t], + jm_cv_sys_off_t_printf_format, + [ + for i in '' L ll q; do + jm_OFF_T_FORMAT="$i" + export jm_OFF_T_FORMAT + AC_TRY_RUN([ +# include <sys/types.h> +# include <stdio.h> +# if HAVE_STDLIB_H +# include <stdlib.h> +# endif +# if HAVE_STRING_H +# include <string.h> +# endif + int + main() + { + char buf[50]; + static off_t x[] = {1, 255, 65535, 99999999}; + char fmt[50]; + + /* this envvar should have one of these values: "", "L", "ll", "q" */ + char *f = getenv ("jm_OFF_T_FORMAT"); + sprintf (fmt, "%%%sd %%%sx %%%sx %%%sd", f, f, f, f); + + sprintf (buf, fmt, x[0], x[1], x[2], x[3]); + exit (strcmp (buf, "1 ff ffff 99999999")); + } + ], jm_cv_sys_off_t_printf_format=yes dnl The library version works. + , jm_cv_sys_off_t_printf_format=no dnl The library version does NOT work. + , jm_cv_sys_off_t_printf_format=no dnl We're cross compiling. + ) + done + ]) + fi + + if test $am_cv_func_working_getline = no; then + AC_LIBOBJ(getline) + fi +]) |