Add the patches

0001-mpl-limit-scope-on-macos-.local-workaround.patch

@@ -0,0 +1,34 @@
+From fbb8f503df077c726b0c99d467bc984566273b92 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
+Date: Tue, 15 Sep 2020 14:20:17 +0200
+Subject: [PATCH 1/2] mpl: limit scope on macos .local workaround
+
+This was added in 62f4178981617384fc116da4c839baf469bef512.
+Assuming that "localhost" is equivalent to any name ending in .local
+is unwarranted. RFC6762 reserves the ".local" suffix for MulticastDNS use,
+but it is also used in other context for "local network" addresses and such.
+So let's at least limit the scope to not hurt other systems.
+---
+ src/mpl/src/sock/mpl_sockaddr.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/mpl/src/sock/mpl_sockaddr.c b/src/mpl/src/sock/mpl_sockaddr.c
+index 51e9f9973f..9334cc4fb2 100644
+--- a/src/mpl/src/sock/mpl_sockaddr.c
++++ b/src/mpl/src/sock/mpl_sockaddr.c
+@@ -75,6 +75,7 @@ int MPL_get_sockaddr(const char *s_hostname, MPL_sockaddr_t * p_addr)
+     struct addrinfo *ai_list;
+     int ret;
+ 
++#ifdef __APPLE__
+     /* Macos adds .local to hostname when network is unavailable or limited.
+      * This will result in long timeout in getaddrinfo below.
+      * Bypass it by resetting the hostname to "localhost"
+@@ -83,6 +84,7 @@ int MPL_get_sockaddr(const char *s_hostname, MPL_sockaddr_t * p_addr)
+     if (n > 6 && strcmp(s_hostname + n - 6, ".local") == 0) {
+         s_hostname = "localhost";
+     }
++#endif
+ 
+     /* NOTE: there is report that getaddrinfo implementations will call kernel
+      * even when s_hostname is entirely numerical string and it may cause

0002-mpl-do-not-require-non-loopback-networking.patch

@@ -0,0 +1,57 @@
+From ecb72e6699f4f8525115e0b42f81121a1cf8eefa Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
+Date: Tue, 15 Sep 2020 14:59:58 +0200
+Subject: [PATCH 2/2] mpl: do not require non-loopback networking
+
+getaddrinfo(3) says:
+  If hints.ai_flags includes the AI_ADDRCONFIG flag, then IPv4
+  addresses are returned in the list pointed to by res only if the
+  local system has at least one IPv4 address configured, and IPv6
+  addresses are returned only if the local system has at least one
+  IPv6 address configured. The loopback address is not considered for
+  this case as valid as a configured address.
+
+This means that MPL_get_sockaddr() will fail to resolve the local host
+(either as "localhost" or by the actual hostname) on a system that has
+no non-loopback networking. This break exection of mpirun e.g. in a
+container for tests and such.
+
+From https://bugzilla.redhat.com/show_bug.cgi?id=1839007:
+
+<mock-chroot> sh-5.0# hostname
+68da8e7c62a2404bb4bf75c9ce643e06
+<mock-chroot> sh-5.0# module load mpi/mpich-x86_64
+<mock-chroot> sh-5.0# mpirun ./a.out
+Fatal error in PMPI_Init: Other MPI error, error stack:
+MPIR_Init_thread(586)..............:
+MPID_Init(224).....................: channel initialization failed
+MPIDI_CH3_Init(105)................:
+MPID_nem_init(324).................:
+MPID_nem_tcp_init(175).............:
+MPID_nem_tcp_get_business_card(404):
+MPID_nem_tcp_init(375).............: gethostbyname failed, 68da8e7c62a2404bb4bf75c9ce643e06 (errno 0)
+
+<mock-chroot> sh-5.0# ip a
+1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
+    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
+    inet 127.0.0.1/8 scope host lo
+       valid_lft forever preferred_lft forever
+    inet6 ::1/128 scope host
+       valid_lft forever preferred_lft forever
+---
+ src/mpl/src/sock/mpl_sockaddr.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/mpl/src/sock/mpl_sockaddr.c b/src/mpl/src/sock/mpl_sockaddr.c
+index 9334cc4fb2..c0e991c68d 100644
+--- a/src/mpl/src/sock/mpl_sockaddr.c
++++ b/src/mpl/src/sock/mpl_sockaddr.c
+@@ -98,7 +98,7 @@ int MPL_get_sockaddr(const char *s_hostname, MPL_sockaddr_t * p_addr)
+     ai_hint.ai_family = af_type;
+     ai_hint.ai_socktype = SOCK_STREAM;
+     ai_hint.ai_protocol = IPPROTO_TCP;
+-    ai_hint.ai_flags = AI_ADDRCONFIG | AI_V4MAPPED;
++    ai_hint.ai_flags = AI_V4MAPPED;
+     ret = getaddrinfo(s_hostname, NULL, &ai_hint, &ai_list);
+     if (ret) {
+         return ret;