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| author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-05-06 11:15:24 +0900 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-05-06 11:30:37 +0900 |
| commit | a1fdc5f71cf0ad8254282e34b2a8b7dce11722ba (patch) | |
| tree | 728ffbd8e6bab095993ed9e226d04efb0856f25a /configure.ac | |
| parent | 921d8ac99d264fec26e15b75ea4fbe024aef281b (diff) | |
Check only whether PAGE_SIZE is compile-time const
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/configure.ac b/configure.ac index dd553b22a4..e781da0a31 100644 --- a/configure.ac +++ b/configure.ac @@ -2732,24 +2732,18 @@ AS_CASE([$target_os], [AC_CHECK_HEADERS([sys/user.h])] ) AS_IF([test "x$ac_cv_func_mmap:$ac_cv_header_sys_user_h" = xyes:yes], [ - AC_CACHE_CHECK([PAGE_SIZE is defined], rb_cv_page_size, + AC_CACHE_CHECK([whether PAGE_SIZE is compile-time const], rb_cv_const_page_size, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ @%:@include <sys/user.h> typedef char conftest_page[PAGE_SIZE]; ]], [[]])], - [rb_cv_page_size=const], - [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - @%:@include <sys/user.h> - ]], [[ - int page_size = (int)PAGE_SIZE; - (void)page_size; - ]])], - [rb_cv_page_size=variable], [rb_cv_page_size=no])])]) - AS_IF([test "x$rb_cv_page_size" = xconst], - [AC_DEFINE(HAVE_CONST_PAGE_SIZE, 1)], - [AC_DEFINE(HAVE_CONST_PAGE_SIZE, 0)] - ) -], [AC_DEFINE(HAVE_CONST_PAGE_SIZE, 0)]) + [rb_cv_const_page_size=yes], + [rb_cv_const_page_size=no])]) +]) +AS_IF([test "x$rb_cv_const_page_size" = xyes], + [AC_DEFINE(HAVE_CONST_PAGE_SIZE, 1)], + [AC_DEFINE(HAVE_CONST_PAGE_SIZE, 0)] +) } : "runtime section" && { |