nmon: add new package

admin/nmon/Makefile

@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=nmon
+PKG_VERSION:=16n
+PKG_RELEASE:=1
+
+PKG_SOURCE:=lmon16n.c
+PKG_SOURCE_URL:=@SF/nmon
+PKG_HASH:=c0012cc2d925dee940c37ceae297abac64ba5a5c30e575e7418b04028613f5f2
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/nmon
+  SECTION:=admin
+  CATEGORY:=Administration
+  URL:=https://nmon.sourceforge.net/
+  TITLE:=Nigel's performance Monitor
+  DEPENDS:=@(arm||aarch64||powerpc||i386||x86_64) \
+	+libc +libncurses +lscpu
+endef
+
+define Package/nmon/description	
+nmon is short for Nigel's performance Monitor for Linux
+endef
+
+define Build/Prepare
+	$(CP) ./src/* $(PKG_BUILD_DIR)
+	$(CP) $(DL_DIR)/$(PKG_SOURCE) $(PKG_BUILD_DIR)
+	$(Build/Patch)
+endef
+
+define Package/nmon/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/nmon $(1)/usr/bin/
+endef
+
+$(eval $(call BuildPackage,nmon))

admin/nmon/patches/001-fix-musl-build.patch

@@ -0,0 +1,28 @@
+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 nmon source. The fstab.h header
+was not used and fails to build if it's included.
+
+--- a/lmon16n.c
++++ b/lmon16n.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>

admin/nmon/src/makefile

@@ -0,0 +1,18 @@
+# NOTE: link the curent working copy of the code to lmon.c for compiling
+CFLAGS=-g -O3 -Wall
+LDFLAGS=-lncurses -lm
+
+ifndef ARCH
+ARCH := $(shell uname -m)
+endif
+
+ifneq ($(findstring $(ARCH), arm aarch64),)
+	EXTRA_CFLAGS := -DARM
+else ifneq ($(findstring $(ARCH), i386 x86_64),)
+	EXTRA_CFLAGS := -DX86
+else ifneq ($(findstring $(ARCH), powerpc),)
+	EXTRA_CFLAGS := -DPOWER
+endif
+
+nmon:
+	$(CC) -o nmon lmon16n.c $(CFLAGS) $(LDFLAGS) $(EXTRA_CFLAGS)