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author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2022-02-18 17:58:24 +0900 |
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committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2022-02-19 15:33:15 +0900 |
commit | 2ae35ad76611b0da21cef4c8444d9ff74368e874 (patch) | |
tree | ba81510ea3fd62c0020470d8f0b2ec68b330d8d8 /tool/m4 | |
parent | dfa17f46a899ed6d3bef1bb61642ffa62b5e00ec (diff) | |
download | ruby-2ae35ad76611b0da21cef4c8444d9ff74368e874.tar.gz |
RUBY_REPLACE_TYPE: check if the target type is a pointer
Diffstat (limited to 'tool/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 |