Adapted from https://git.sr.ht/~kqz/repo/tree/b8808d806c887c0b800d3548f0c6201440b25a5e/item/server/lilo/patches/musl.patch
--- a/src/common.h
+++ b/src/common.h
@@ -23,12 +23,7 @@
 # define PAGE_SIZE 4096U
 #endif
 
-#ifdef O_ACCMODE
-# define O_NOACCESS O_ACCMODE
-#else
-/* open a file for "no access" */
-# define O_NOACCESS 3
-#endif
+#define O_NOACCESS O_RDONLY
 
 /* special for LILO, bypass the actual open in  dev_open( , ,-1)   */
 #define O_BYPASS -1