m4/header_major_fixed.m4

   1 AC_DEFUN([AC_HEADER_MAJOR_FIXED],
   2 [AC_CACHE_CHECK(whether sys/types.h defines makedev,
   3                 ac_cv_header_sys_types_h_makedev,
   4 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[@%:@include <sys/types.h>]],
   5                                  [[return makedev(0, 0);]])],
   6                 [if grep sys/sysmacros.h conftest.err >/dev/null; then
   7                    ac_cv_header_sys_types_h_makedev=no
   8                  else
   9                    ac_cv_header_sys_types_h_makedev=yes
  10                  fi],
  11                 [ac_cv_header_sys_types_h_makedev=no])
  12 ])
  13
  14 if test $ac_cv_header_sys_types_h_makedev = no; then
  15 AC_CHECK_HEADER(sys/mkdev.h,
  16                 [AC_DEFINE(MAJOR_IN_MKDEV, 1,
  17                            [Define to 1 if `major', `minor', and `makedev' are
  18                             declared in <mkdev.h>.])])
  19
  20   if test $ac_cv_header_sys_mkdev_h = no; then
  21     AC_CHECK_HEADER(sys/sysmacros.h,
  22                     [AC_DEFINE(MAJOR_IN_SYSMACROS, 1,
  23                                [Define to 1 if `major', `minor', and `makedev'
  24                                 are declared in <sysmacros.h>.])])
  25   fi
  26 fi
  27 ])