net-snmp: Fix build with musl

The last patch 0012-Fix-configuration-of-NETSNMP_FD_MASK_TYPE.patch
brought in with 5.9.4 upgrade is not sufficient and infact has a regression
introduced for clang+musl builds.

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-protocols/net-snmp/net-snmp/0001-Android-Fix-the-build.patch

@@ -0,0 +1,83 @@
+From b4598662a39ff6974119c900ea56a4d020eac366 Mon Sep 17 00:00:00 2001
+From: Bart Van Assche <bvanassche@acm.org>
+Date: Wed, 20 Dec 2023 13:08:06 -0800
+Subject: [PATCH] Android: Fix the build
+
+Include <sys/select.h> for the fd_set type. In the configure script,
+check whether 'unsigned long' is the underlying type of fd_set. Use
+u_long instead of ulong.
+
+Upstream-Status: Backport [https://github.com/net-snmp/net-snmp/commit/b4598662a39ff6974119c900ea56a4d020eac366]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ agent/mibgroup/ip-mib/data_access/ipaddress_linux.c | 4 ++--
+ configure                                           | 2 +-
+ configure.d/config_project_types                    | 2 +-
+ include/net-snmp/types.h                            | 3 +++
+ 4 files changed, 7 insertions(+), 4 deletions(-)
+
+diff --git a/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c b/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c
+index b38beb57dd..232202d0f9 100644
+--- a/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c
++++ b/agent/mibgroup/ip-mib/data_access/ipaddress_linux.c
+@@ -50,7 +50,7 @@ int _load_v6(netsnmp_container *container, int idx_offset);
+ int
+ netsnmp_access_ipaddress_extra_prefix_info(int index,
+                                            u_long *preferedlt,
+-                                           ulong *validlt,
++                                           u_long *validlt,
+                                            char *addr);
+ #endif
+ 
+@@ -523,7 +523,7 @@ out:
+ 
+ int
+ netsnmp_access_ipaddress_extra_prefix_info(int index, u_long *preferedlt,
+-                                           ulong *validlt, char *addr)
++                                           u_long *validlt, char *addr)
+ {
+ 
+     struct {
+diff --git a/configure b/configure
+index e7bf859bba..48abcbab11 100755
+--- a/configure
++++ b/configure
+@@ -31577,7 +31577,7 @@ CFLAGS="$CFLAGS -Werror"
+ 
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the type of fd_set::fds_bits" >&5
+ printf %s "checking for the type of fd_set::fds_bits... " >&6; }
+-for type in __fd_mask __int32_t long\ int unknown; do
++for type in __fd_mask __int32_t long 'unsigned long' unknown; do
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+diff --git a/configure.d/config_project_types b/configure.d/config_project_types
+index a78e8ebb06..ac958d6712 100644
+--- a/configure.d/config_project_types
++++ b/configure.d/config_project_types
+@@ -66,7 +66,7 @@ netsnmp_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS -Werror"
+ 
+ AC_MSG_CHECKING([for the type of fd_set::fds_bits])
+-for type in __fd_mask __int32_t long\ int unknown; do
++for type in __fd_mask __int32_t long 'unsigned long' unknown; do
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+ #include <sys/select.h>
+ #include <stddef.h>
+diff --git a/include/net-snmp/types.h b/include/net-snmp/types.h
+index b78f53ffd7..6228170e5f 100644
+--- a/include/net-snmp/types.h
++++ b/include/net-snmp/types.h
+@@ -23,6 +23,9 @@
+ #endif
+ 
+ #include <sys/types.h>
++#ifdef __ANDROID__
++#include <sys/select.h>
++#endif
+ 
+ #if defined(WIN32) && !defined(cygwin)
+ typedef HANDLE netsnmp_pid_t;
+-- 
+2.44.0
+

meta-networking/recipes-protocols/net-snmp/net-snmp_5.9.4.bb

@@ -27,6 +27,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/net-snmp/net-snmp-${PV}.tar.gz \
            file://0010-net-snmp-Reproducibility-Don-t-check-build-host-for.patch \
            file://0011-ac_add_search_path.m4-keep-consistent-between-32bit-.patch \
            file://0012-Fix-configuration-of-NETSNMP_FD_MASK_TYPE.patch \
+           file://0001-Android-Fix-the-build.patch \
           "
 SRC_URI[sha256sum] = "8b4de01391e74e3c7014beb43961a2d6d6fa03acc34280b9585f4930745b0544"