diff options
Diffstat (limited to 'tool/m4/ruby_defint.m4')
| -rw-r--r-- | tool/m4/ruby_defint.m4 | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tool/m4/ruby_defint.m4 b/tool/m4/ruby_defint.m4 new file mode 100644 index 0000000000..9e99ca80d6 --- /dev/null +++ b/tool/m4/ruby_defint.m4 @@ -0,0 +1,39 @@ +dnl RUBY_DEFINT TYPENAME, SIZE, [UNSIGNED], [INCLUDES = DEFAULT-INCLUDES] +AC_DEFUN([RUBY_DEFINT], [dnl +AS_VAR_PUSHDEF([cond], [rb_defint_cond])dnl +AS_VAR_PUSHDEF([type], [rb_defint_type])dnl +AC_CACHE_CHECK([for $1], [rb_cv_type_$1], +[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT([$4]) +typedef $1 t; int s = sizeof(t) == 42;])], + [rb_cv_type_$1=yes], + [AS_CASE([m4_bmatch([$2], [^[1-9][0-9]*$], $2, [$ac_cv_sizeof_]AS_TR_SH($2))], + ["1"], [ rb_cv_type_$1="m4_if([$3], [], [signed ], [$3 ])char"], + ["$ac_cv_sizeof_short"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])short"], + ["$ac_cv_sizeof_int"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])int"], + ["$ac_cv_sizeof_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long"], + ["$ac_cv_sizeof_long_long"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])long long"], + ["${ac_cv_sizeof___int64@%:@*:}"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int64"], + ["${ac_cv_sizeof___int128@%:@*:}"], [ rb_cv_type_$1="m4_if([$3], [], [], [$3 ])__int128"], + [ rb_cv_type_$1=no])])]) +AS_IF([test "${rb_cv_type_$1}" != no], [ + type="${rb_cv_type_$1@%:@@%:@unsigned }" + AS_IF([test "$type" != yes && eval 'test -n "${ac_cv_sizeof_'$type'+set}"'], [ + eval cond='"${ac_cv_sizeof_'$type'}"' + AS_CASE([$cond], [*:*], [ + cond=AS_TR_CPP($type) + echo "@%:@if defined SIZEOF_"$cond" && SIZEOF_"$cond" > 0" >> confdefs.h + ], [cond=]) + ], [cond=]) + AC_DEFINE([HAVE_]AS_TR_CPP($1), 1) + AS_IF([test "${rb_cv_type_$1}" = yes], [ + m4_bmatch([$2], [^[1-9][0-9]*$], [AC_CHECK_SIZEOF([$1], 0, [AC_INCLUDES_DEFAULT([$4])])], + [RUBY_CHECK_SIZEOF([$1], [$2], [], [AC_INCLUDES_DEFAULT([$4])])]) + ], [ + AC_DEFINE_UNQUOTED($1, [$rb_cv_type_$1]) + AC_DEFINE_UNQUOTED([SIZEOF_]AS_TR_CPP($1), [SIZEOF_]AS_TR_CPP([$type])) + ]) + test -n "$cond" && echo "@%:@endif /* $cond */" >> confdefs.h +]) +AS_VAR_POPDEF([cond])dnl +AS_VAR_POPDEF([type])dnl +])dnl |