diff options
Diffstat (limited to 'tool/m4/ruby_replace_type.m4')
| -rw-r--r-- | tool/m4/ruby_replace_type.m4 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/tool/m4/ruby_replace_type.m4 b/tool/m4/ruby_replace_type.m4 index 70674b6cc7..3df0f3994f 100644 --- a/tool/m4/ruby_replace_type.m4 +++ b/tool/m4/ruby_replace_type.m4 @@ -6,6 +6,13 @@ AC_DEFUN([RUBY_REPLACE_TYPE], [dnl [n="patsubst([$2],["],[\\"])"], [$4]) AC_CACHE_CHECK([for convertible type of [$1]], rb_cv_[$1]_convertible, [ + AC_COMPILE_IFELSE( + [AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([$4])] + [typedef $n rbcv_conftest_target_type; + extern rbcv_conftest_target_type rbcv_conftest_var; + ], [sizeof(&*rbcv_conftest_var)])], + [rb_cv_[$1]_convertible=PTR], + [ u= t= AS_CASE(["$n "], [*" signed "*], [ ], @@ -37,6 +44,7 @@ AC_DEFUN([RUBY_REPLACE_TYPE], [dnl [ t=INT]) rb_cv_[$1]_convertible=${u}${t}]) + ]) AS_IF([test "${AS_TR_SH(ac_cv_type_[$1])}" = "yes"], [ n="$1" ], [ @@ -48,11 +56,13 @@ AC_DEFUN([RUBY_REPLACE_TYPE], [dnl AS_CASE(["${rb_cv_[$1]_convertible}"], [U*], [n="unsigned $n"]) ]) - AS_CASE("${rb_cv_[$1]_convertible}", [U*], [u=+1], [u=-1]) + AS_CASE("${rb_cv_[$1]_convertible}", [PTR], [u=], [U*], [u=+1], [u=-1]) AC_DEFINE_UNQUOTED(rb_[$1], $n) + AS_IF([test $u], [ AC_DEFINE_UNQUOTED([SIGNEDNESS_OF_]AS_TR_CPP($1), $u) AC_DEFINE_UNQUOTED([$3]2NUM[(v)], [${rb_cv_[$1]_convertible}2NUM(v)]) AC_DEFINE_UNQUOTED(NUM2[$3][(v)], [NUM2${rb_cv_[$1]_convertible}(v)]) AC_DEFINE_UNQUOTED(PRI_[$3]_PREFIX, [PRI_`echo ${rb_cv_[$1]_convertible} | sed ['s/^U//']`_PREFIX]) + ]) ])dnl |