5 files changed, 39 insertions, 5 deletions
diff --git a/vendor/librune/include/builder.h b/vendor/librune/include/builder.h
new file mode 100644
index 0000000..b711f97
--- /dev/null
+++ b/vendor/librune/include/builder.h
@@ -0,0 +1,31 @@
+#ifndef RUNE_BUILDER_H
+#define RUNE_BUILDER_H
+
+#define _RUNE_NEEDS_U8VIEW 1
+#include "internal/types.h" /* IWYU pragma: export */
+
+struct u8buf {
+	char8_t *p;
+	size_t len, cap;
+};
+
+struct u8buf *u8strinit(struct u8buf *, size_t);
+struct u8buf *u8strgrow(struct u8buf *, size_t);
+struct u8buf *u8strfit(struct u8buf *);
+void u8strfree(struct u8buf);
+
+struct u8buf *u8strpushr(struct u8buf *, rune);
+struct u8buf *u8strpushstr(struct u8buf *, const char *);
+struct u8buf *u8strpushu8(struct u8buf *, struct u8view);
+
+#if __STDC_VERSION__ >= 201112L
+#	define u8strpush(b, x) \
+		_Generic((x), \
+		    char: u8strpushr, \
+		    int: u8strpushr, \
+		    rune: u8strpushr, \
+		    char *: u8strpushstr, \
+		    struct u8view: u8strpushu8)((b), (x))
+#endif
+
+#endif /* !RUNE_BUILDER_H */
diff --git a/vendor/librune/include/internal/common.h b/vendor/librune/include/internal/common.h
index 7107528..af490d3 100644
--- a/vendor/librune/include/internal/common.h
+++ b/vendor/librune/include/internal/common.h
@@ -1,6 +1,8 @@
 #ifndef RUNE_INTERNAL_COMMON_H
 #define RUNE_INTERNAL_COMMON_H
 
+/* IWYU pragma: private */
+
 #if __STDC_VERSION__ >= 202311L
 #	define RUNE_IS_23 1
 #endif
diff --git a/vendor/librune/include/internal/gbrk_lookup.h b/vendor/librune/include/internal/gbrk_lookup.h
index 39dfa8e..043be97 100644
--- a/vendor/librune/include/internal/gbrk_lookup.h
+++ b/vendor/librune/include/internal/gbrk_lookup.h
@@ -5,6 +5,7 @@
 #ifndef RUNE_INTERNAL_GBRK_LOOKUP_H
 #define RUNE_INTERNAL_GBRK_LOOKUP_H
 
+/* IWYU pragma: private */
 /* clang-format off */
 
 #include "types.h"
diff --git a/vendor/librune/include/internal/types.h b/vendor/librune/include/internal/types.h
index b2fa34c..b7ce6f1 100644
--- a/vendor/librune/include/internal/types.h
+++ b/vendor/librune/include/internal/types.h
@@ -1,5 +1,4 @@
-#ifndef RUNE_INTERNAL_TYPES_H
-#define RUNE_INTERNAL_TYPES_H
+/* IWYU pragma: private */
 
 #include <stddef.h> /* IWYU pragma: export */
 #include <stdint.h>
@@ -8,10 +7,11 @@ typedef unsigned char char8_t;
 typedef uint_least32_t rune;
 
 #if _RUNE_NEEDS_U8VIEW
+#	if !_RUNE_HAS_U8VIEW
 struct u8view {
 	const char8_t *p;
 	size_t len;
 };
+#		define _RUNE_HAS_U8VIEW 1
+#	endif
 #endif
-
-#endif /* !RUNE_INTERNAL_TYPES_H */
diff --git a/vendor/librune/include/utf8.h b/vendor/librune/include/utf8.h
index 0ebd745..1a91c24 100644
--- a/vendor/librune/include/utf8.h
+++ b/vendor/librune/include/utf8.h
@@ -18,7 +18,7 @@ int u8tor(rune *, const char8_t *);
 int u8tor_uc(rune *, const char8_t *);
 
 const char8_t *u8chk(const char8_t *, size_t);
-bool u8chkr(rune);
+_RUNE_UNSEQUENCED bool u8chkr(rune);
 
 _RUNE_UNSEQUENCED int u8wdth(rune);