diff --git a/pkg/oniguruma/types.zig b/pkg/oniguruma/types.zig
index 3eafc0e90..a47149ce0 100644
--- a/pkg/oniguruma/types.zig
+++ b/pkg/oniguruma/types.zig
@@ -2,52 +2,52 @@ const std = @import("std");
 const c = @import("c.zig");
 
 pub const Encoding = opaque {
-    pub const ascii: *Encoding = @ptrCast(c.ONIG_ENCODING_ASCII);
-    pub const iso_8859_1: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_1);
-    pub const iso_8859_2: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_2);
-    pub const iso_8859_3: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_3);
-    pub const iso_8859_4: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_4);
-    pub const iso_8859_5: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_5);
-    pub const iso_8859_6: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_6);
-    pub const iso_8859_7: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_7);
-    pub const iso_8859_8: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_8);
-    pub const iso_8859_9: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_9);
-    pub const iso_8859_10: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_10);
-    pub const iso_8859_11: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_11);
-    pub const iso_8859_13: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_13);
-    pub const iso_8859_14: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_14);
-    pub const iso_8859_15: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_15);
-    pub const iso_8859_16: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_16);
-    pub const utf8: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF8);
-    pub const utf16_be: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF16_BE);
-    pub const utf16_le: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF16_LE);
-    pub const utf32_be: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF32_BE);
-    pub const utf32_le: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF32_LE);
-    pub const euc_jp: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_JP);
-    pub const euc_tw: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_TW);
-    pub const euc_kr: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_KR);
-    pub const euc_cn: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_CN);
-    pub const sjis: *Encoding = @ptrCast(c.ONIG_ENCODING_SJIS);
-    pub const koi8: *Encoding = @ptrCast(c.ONIG_ENCODING_KOI8);
-    pub const koi8_r: *Encoding = @ptrCast(c.ONIG_ENCODING_KOI8_R);
-    pub const cp1251: *Encoding = @ptrCast(c.ONIG_ENCODING_CP1251);
-    pub const big5: *Encoding = @ptrCast(c.ONIG_ENCODING_BIG5);
-    pub const gb18030: *Encoding = @ptrCast(c.ONIG_ENCODING_GB18030);
+    pub const ascii: *Encoding = @ptrCast(c.ONIG_ENCODING_ASCII());
+    pub const iso_8859_1: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_1());
+    pub const iso_8859_2: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_2());
+    pub const iso_8859_3: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_3());
+    pub const iso_8859_4: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_4());
+    pub const iso_8859_5: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_5());
+    pub const iso_8859_6: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_6());
+    pub const iso_8859_7: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_7());
+    pub const iso_8859_8: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_8());
+    pub const iso_8859_9: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_9());
+    pub const iso_8859_10: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_10());
+    pub const iso_8859_11: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_11());
+    pub const iso_8859_13: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_13());
+    pub const iso_8859_14: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_14());
+    pub const iso_8859_15: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_15());
+    pub const iso_8859_16: *Encoding = @ptrCast(c.ONIG_ENCODING_ISO_8859_16());
+    pub const utf8: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF8());
+    pub const utf16_be: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF16_BE());
+    pub const utf16_le: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF16_LE());
+    pub const utf32_be: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF32_BE());
+    pub const utf32_le: *Encoding = @ptrCast(c.ONIG_ENCODING_UTF32_LE());
+    pub const euc_jp: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_JP());
+    pub const euc_tw: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_TW());
+    pub const euc_kr: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_KR());
+    pub const euc_cn: *Encoding = @ptrCast(c.ONIG_ENCODING_EUC_CN());
+    pub const sjis: *Encoding = @ptrCast(c.ONIG_ENCODING_SJIS());
+    pub const koi8: *Encoding = @ptrCast(c.ONIG_ENCODING_KOI8());
+    pub const koi8_r: *Encoding = @ptrCast(c.ONIG_ENCODING_KOI8_R());
+    pub const cp1251: *Encoding = @ptrCast(c.ONIG_ENCODING_CP1251());
+    pub const big5: *Encoding = @ptrCast(c.ONIG_ENCODING_BIG5());
+    pub const gb18030: *Encoding = @ptrCast(c.ONIG_ENCODING_GB18030());
 };
 
 pub const Syntax = opaque {
-    pub const default: *Syntax = @ptrCast(c.ONIG_SYNTAX_ONIGURUMA);
-    pub const asis: *Syntax = @ptrCast(c.ONIG_SYNTAX_ASIS);
-    pub const posix_basic: *Syntax = @ptrCast(c.ONIG_SYNTAX_POSIX_BASIC);
-    pub const posix_extended: *Syntax = @ptrCast(c.ONIG_SYNTAX_POSIX_EXTENDED);
-    pub const emacs: *Syntax = @ptrCast(c.ONIG_SYNTAX_EMACS);
-    pub const grep: *Syntax = @ptrCast(c.ONIG_SYNTAX_GREP);
-    pub const gnu_regex: *Syntax = @ptrCast(c.ONIG_SYNTAX_GNU_REGEX);
-    pub const java: *Syntax = @ptrCast(c.ONIG_SYNTAX_JAVA);
-    pub const perl: *Syntax = @ptrCast(c.ONIG_SYNTAX_PERL);
-    pub const perl_ng: *Syntax = @ptrCast(c.ONIG_SYNTAX_PERL_NG);
-    pub const ruby: *Syntax = @ptrCast(c.ONIG_SYNTAX_RUBY);
-    pub const oniguruma: *Syntax = @ptrCast(c.ONIG_SYNTAX_ONIGURUMA);
+    pub const default: *Syntax = @ptrCast(c.ONIG_SYNTAX_ONIGURUMA());
+    pub const asis: *Syntax = @ptrCast(c.ONIG_SYNTAX_ASIS());
+    pub const posix_basic: *Syntax = @ptrCast(c.ONIG_SYNTAX_POSIX_BASIC());
+    pub const posix_extended: *Syntax = @ptrCast(c.ONIG_SYNTAX_POSIX_EXTENDED());
+    pub const emacs: *Syntax = @ptrCast(c.ONIG_SYNTAX_EMACS());
+    pub const grep: *Syntax = @ptrCast(c.ONIG_SYNTAX_GREP());
+    pub const gnu_regex: *Syntax = @ptrCast(c.ONIG_SYNTAX_GNU_REGEX());
+    pub const java: *Syntax = @ptrCast(c.ONIG_SYNTAX_JAVA());
+    pub const perl: *Syntax = @ptrCast(c.ONIG_SYNTAX_PERL());
+    pub const perl_ng: *Syntax = @ptrCast(c.ONIG_SYNTAX_PERL_NG());
+    pub const ruby: *Syntax = @ptrCast(c.ONIG_SYNTAX_RUBY());
+    pub const oniguruma: *Syntax = @ptrCast(c.ONIG_SYNTAX_ONIGURUMA());
 };
 
 pub const Option = packed struct(c_uint) {