lm_sensors: add musl patch from alpine.

Doesn't fix build yet due to use of unconventional
object file extensions (which shouldn't matter but do).

pkgs/os-specific/linux/lm-sensors/default.nix

@@ -20,6 +20,8 @@ stdenv.mkDerivation rec {
   buildInputs = [ bison flex which perl ]
    ++ stdenv.lib.optional sensord rrdtool;
 
+  patches = [ ./musl-fix-includes.patch ];
+
   preBuild = ''
     makeFlagsArray=(PREFIX=$out ETCDIR=$out/etc
     ${stdenv.lib.optionalString sensord "PROG_EXTRA=sensord"})

pkgs/os-specific/linux/lm-sensors/musl-fix-includes.patch

@@ -0,0 +1,62 @@
+--- lm_sensors-3.3.4.orig/prog/dump/isadump.c
++++ lm_sensors-3.3.4/prog/dump/isadump.c
+@@ -36,13 +36,7 @@
+ #include "util.h"
+ #include "superio.h"
+ 
+-
+-/* To keep glibc2 happy */
+-#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 0
+ #include <sys/io.h>
+-#else
+-#include <asm/io.h>
+-#endif
+ 
+ #ifdef __powerpc__
+ unsigned long isa_io_base = 0; /* XXX for now */
+--- lm_sensors-3.3.4.orig/prog/dump/isaset.c
++++ lm_sensors-3.3.4/prog/dump/isaset.c
+@@ -32,13 +32,7 @@
+ #include <string.h>
+ #include "util.h"
+ 
+-
+-/* To keep glibc2 happy */
+-#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 0
+ #include <sys/io.h>
+-#else
+-#include <asm/io.h>
+-#endif
+ 
+ #ifdef __powerpc__
+ unsigned long isa_io_base = 0; /* XXX for now */
+--- lm_sensors-3.3.4.orig/prog/dump/superio.c
++++ lm_sensors-3.3.4/prog/dump/superio.c
+@@ -20,12 +20,7 @@
+ */
+ 
+ #include <stdlib.h>
+-
+-#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 0
+ #include <sys/io.h>
+-#else
+-#include <asm/io.h>
+-#endif
+ 
+ #include "superio.h"
+ 
+--- lm_sensors-3.3.4.orig/prog/dump/util.c
++++ lm_sensors-3.3.4/prog/dump/util.c
+@@ -11,12 +11,7 @@
+ #include <stdio.h>
+ #include "util.h"
+ 
+-/* To keep glibc2 happy */
+-#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 0
+ #include <sys/io.h>
+-#else
+-#include <asm/io.h>
+-#endif
+ 
+ /* Return 1 if we should continue, 0 if we should abort */
+ int user_ack(int def)