Regarding O_NOACCESS:

 > Using a value of 3 as the argument to open is a traditional Linux
 > extension for getting an fd that's usable only for ioctls. That's
 > reasonable. What's not reasonable or correct is using O_ACCMODE as a
 > way to get a 3.

https://www.openwall.com/lists/musl/2014/07/01/12

--- lilo-24.2/src/common.h	2015-11-21 17:50:23.000000000 -0600
+++ lilo-24.2/src/common.h	2020-03-19 07:32:52.429998369 -0500
@@ -26,12 +26,8 @@
 # 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 3
 
 /* special for LILO, bypass the actual open in  dev_open( , ,-1)   */
 #define O_BYPASS -1
--- lilo-24.2/src/config.h	2011-06-22 02:13:58.000000000 -0500
+++ lilo-24.2/src/config.h	2020-03-19 04:43:53.769503552 -0500
@@ -20,10 +20,6 @@
 #endif
 
 #if !__MSDOS__
-#if !defined(__GLIBC__) || (__GLIBC__ < 2) || \
-	 !defined(__GLIBC_MINOR__) || (__GLIBC_MINOR__ < 1)
-# warning "glibc version 2.1 or later is recommended"
-#endif /* !__MSDOS__ */
 
 #define TMP_DEV     "/tmp/dev.%d" /* temporary devices are created here */
 #define MAX_TMP_DEV 50 /* highest temp. device number */
--- lilo-24.2/src/lilo.c	2015-11-21 17:51:24.000000000 -0600
+++ lilo-24.2/src/lilo.c	2020-03-19 04:34:43.899511387 -0500
@@ -182,7 +182,6 @@ extern int has_partitions_beta(dev_t dev
                 printf("Without");
 #endif
                 printf(" device-mapper\n");
-		printf("\nglibc version %d.%d\n", __GLIBC__, __GLIBC_MINOR__);
 		printf("Kernel Headers included from  %d.%d.%d\n",
 			LINUX_VERSION_CODE>>16,
 			LINUX_VERSION_CODE>>8 & 255,
--- lilo-24.2/src/partition.c	2015-11-21 17:50:20.000000000 -0600
+++ lilo-24.2/src/partition.c	2020-03-19 04:41:05.339505952 -0500
@@ -31,30 +31,6 @@
 #include "boot.h"
 #include "loader.h"
 
-#if __GLIBC__ < 2 || __GLIBC_MINOR__ < 1
-#if defined(_syscall5) && defined(__NR__llseek)
-       
-       _syscall5(int,  _llseek,  unsigned int,  fd, unsigned int, hi,
-           unsigned int, lo, lloff_t *, res, unsigned int, wh);
-       int _llseek(unsigned int fd,  unsigned  int  offset_high,
-           unsigned  int  offset_low,  lloff_t * result, unsigned int whence);
-
-       lloff_t lseek64(unsigned int fd, lloff_t offs, unsigned int whence)
-       { lloff_t res;
-       	   return _llseek(fd, offs>>32, offs, &res, whence) < 0  ?
-       			 (lloff_t)(-1) : res;
-       }
-
-#else
-/* last ditch attempt on small disks, and very old systems */
-# warning "*****************************************"
-# warning "***** no 64 bit lseek is available ******"
-# warning "***** using 23 bit sector addresses *****"
-# warning "*****************************************"
-# define lseek64 lseek
-#endif
-#endif
-
 static
 int anywhere(unsigned char *buf, char *str)
 {