For future me, diffs from upstream:
```patch @@ -1,10 +1,13 @@ #ifndef CMARK_H #define CMARK_H
+#include <stdbool.h> #include <stdio.h> -#include <cmark_export.h> #include <cmark_version.h>
+#define CMARK_EXPORT +#define CMARK_INLINE inline + #ifdef __cplusplus extern "C" { #endif ```
and
```patch @@ -1,7 +1,7 @@ #ifndef CMARK_VERSION_H #define CMARK_VERSION_H
-#define CMARK_VERSION ((@PROJECT_VERSION_MAJOR@ << 16) | (@PROJECT_VERSION_MINOR@ << 8) | @PROJECT_VERSION_PATCH@) -#define CMARK_VERSION_STRING "@PROJECT_VERSION_MAJOR@.@PROJECT_VERSION_MINOR@.@PROJECT_VERSION_PATCH@" +#define CMARK_VERSION ((0 << 16) | (28 << 8) | 3) +#define CMARK_VERSION_STRING "0.28.3"
#endif ```