https://bugs.gentoo.org/712472

From: Mike Crute <mike@crute.us>
Date: Sun, 31 May 2020 19:26:32 +0000
Subject: [PATCH] Add glibc compatibility to nmon

musl is missing some compatibility with glibc which this patch adds to the nmon
source. The fstab.h header was not used and fails to build if it's included.

--- a/nmon.c
+++ b/nmon.c
@@ -42,6 +42,9 @@
 	pi_delayacct_blkio_ticks 
 */
 
+/* Fix compatibility for glibc */ 
+#define __STRING(x) #x
+
 /* note: RAW assumes you are using the index "i" to select the CPU */
 #define RAW(member)      (long)((long)(p->cpuN[i].member)   - (long)(q->cpuN[i].member))
 #define RAWTOTAL(member) (long)((long)(p->cpu_total.member) - (long)(q->cpu_total.member))
@@ -583,7 +586,6 @@
 int isroot = 0;
 
 #include <mntent.h>
-#include <fstab.h>
 #include <sys/stat.h>
 #include <sys/statfs.h>
 #include <net/if.h>