cirros-testvm/src-cirros/buildroot-2015.05/package/openpgm/0002-cross-compile.patch

   1 configure.ac: cross-compilation fix
   2
   3 This patch enables to configure the package when cross-compiling in a way
   4 recommended by Autoconf manual (see manual for version 2.69, Section 6.6
   5 Checking Runtime Behavior).
   6
   7 Signed-off-by: Alexander Lukichev <alexander.lukichev@gmail.com>
   8
   9 --- a/openpgm/pgm/configure.ac  2011-09-27 20:59:08.000000000 +0300
  10 +++ b/openpgm/pgm/configure.ac  2013-02-12 10:33:53.000000000 +0200
  11 @@ -272,14 +272,19 @@ uint32_t add32_with_carry (uint32_t a, u
  12         ;;
  13  esac
  14  # ticket spinlock friendly: unaligned pointers & atomic ops (excl. Sun Pro)
  15 -AC_MSG_CHECKING([for unaligned pointers])
  16 -AC_RUN_IFELSE(
  17 -       [AC_LANG_PROGRAM([[char* nezumi = "mouse";]],
  18 -               [[short x = *(short*)(nezumi + 2)]])],
  19 -       [AC_MSG_RESULT([yes])
  20 -               pgm_unaligned_pointers=yes],
  21 -       [AC_MSG_RESULT([no])
  22 -               pgm_unaligned_pointers=no])
  23 +AC_CACHE_CHECK([if unaligned access fails], [ac_cv_lbl_unaligned_fail],
  24 +       [AC_RUN_IFELSE(
  25 +               [AC_LANG_PROGRAM([[char* nezumi = "mouse";]],
  26 +                       [[short x = *(short*)(nezumi + 2)]])],
  27 +               [ac_cv_lbl_unaligned_fail=no],
  28 +               [ac_cv_lbl_unaligned_fail=yes],
  29 +               [ac_cv_lbl_unaligned_fail=yes])
  30 +       ])
  31 +if test "$ac_cv_lbl_unaligned_fail" = yes; then
  32 +       pgm_unaligned_pointers=no
  33 +else
  34 +       pgm_unaligned_pointers=yes
  35 +fi
  36  AC_MSG_CHECKING([for intrinsic atomic ops])
  37  # AC_PREPROC_IFELSE not always portable
  38  AC_COMPILE_IFELSE(