diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/configure.ac b/configure.ac index ac464b6d2f..1976530df9 100644 --- a/configure.ac +++ b/configure.ac @@ -1182,22 +1182,23 @@ if test "$ac_cv_sizeof_void_p" -eq 8 ; then if test "x$EnableLargeAddressSpace" = "xyes" ; then if test "$ghc_host_os" = "darwin" ; then use_large_address_space=yes - elif test "$ghc_host_os" = "openbsd" ; then - # as of OpenBSD 5.8 (2015), OpenBSD does not support mmap with MAP_NORESERVE. - # The flag MAP_NORESERVE is supported for source compatibility reasons, - # but is completely ignored by OS mmap + elif test "$ghc_host_os" = "openbsd" ; then + # as of OpenBSD 5.8 (2015), OpenBSD does not support mmap with MAP_NORESERVE. + # The flag MAP_NORESERVE is supported for source compatibility reasons, + # but is completely ignored by OS mmap use_large_address_space=no else - AC_CHECK_DECLS([MAP_NORESERVE, MADV_FREE, MADV_DONTNEED],[],[], + AC_CHECK_DECLS([MAP_NORESERVE, MAP_GUARD, MADV_FREE, MADV_DONTNEED],[],[], [ #include <unistd.h> #include <sys/types.h> #include <sys/mman.h> #include <fcntl.h> ]) - if test "$ac_cv_have_decl_MAP_NORESERVE" = "yes" && - test "$ac_cv_have_decl_MADV_FREE" = "yes" || - test "$ac_cv_have_decl_MADV_DONTNEED" = "yes" ; then + if ( test "$ac_cv_have_decl_MAP_NORESERVE" = "yes" || + test "$ac_cv_have_decl_MAP_GUARD" = "yes" ) && + ( test "$ac_cv_have_decl_MADV_FREE" = "yes" || + test "$ac_cv_have_decl_MADV_DONTNEED" = "yes" ) ; then use_large_address_space=yes fi fi |