v4.1.x: Fix missed compiler warnings

ompi/mca/coll/base/coll_base_util.c

@@ -257,7 +257,7 @@ static int free_vecs_callback(struct ompi_request_t **rptr) {
 }
 
 int ompi_coll_base_retain_datatypes_w( ompi_request_t *req,
-                                       ompi_datatype_t *stypes[], ompi_datatype_t *rtypes[]) {
+                                       ompi_datatype_t *const stypes[], ompi_datatype_t *const rtypes[]) {
     ompi_coll_base_nbc_request_t *request = (ompi_coll_base_nbc_request_t *)req;
     bool retain = false;
     ompi_communicator_t *comm = request->super.req_mpi_object.comm;

ompi/mca/coll/base/coll_base_util.h

@@ -174,8 +174,8 @@ int ompi_coll_base_retain_datatypes( ompi_request_t *request,
  * (will be cast internally).
  */
 int ompi_coll_base_retain_datatypes_w( ompi_request_t *request,
-                                       ompi_datatype_t *stypes[],
-                                       ompi_datatype_t *rtypes[]);
+                                       ompi_datatype_t * const stypes[],
+                                       ompi_datatype_t * const rtypes[]);
 
 /* File reading function */
 int ompi_coll_base_file_getnext_long(FILE *fptr, int *fileline, long* val);

opal/mca/if/bsdx_ipv6/if_bsdx_ipv6.c

@@ -1,6 +1,8 @@
 /*
  * Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2010      Oracle and/or its affiliates.  All rights reserved.
+ * Copyright (c) 2018      Amazon.com, Inc. or its affiliates.  All Rights
+ *                         reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -36,23 +38,7 @@
 #include <arpa/inet.h>
 #endif
 #ifdef HAVE_NET_IF_H
-#if defined(__APPLE__) && defined(_LP64)
-/* Apple engineering suggested using options align=power as a
-   workaround for a bug in OS X 10.4 (Tiger) that prevented ioctl(...,
-   SIOCGIFCONF, ...) from working properly in 64 bit mode on Power PC.
-   It turns out that the underlying issue is the size of struct
-   ifconf, which the kernel expects to be 12 and natural 64 bit
-   alignment would make 16.  The same bug appears in 64 bit mode on
-   Intel macs, but align=power is a no-op there, so instead, use the
-   pack pragma to instruct the compiler to pack on 4 byte words, which
-   has the same effect as align=power for our needs and works on both
-   Intel and Power PC Macs. */
-#pragma pack(push,4)
-#endif
 #include <net/if.h>
-#if defined(__APPLE__) && defined(_LP64)
-#pragma pack(pop)
-#endif
 #endif
 #ifdef HAVE_NETDB_H
 #include <netdb.h>

opal/mca/if/if.h

@@ -3,6 +3,8 @@
  * Copyright (c) 2010-2013 Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2015      Los Alamos National Security, LLC. All rights
  *                         reserved.
+ * Copyright (c) 2018      Amazon.com, Inc. or its affiliates.  All Rights
+ *                         reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -39,23 +41,7 @@
 #include <arpa/inet.h>
 #endif
 #ifdef HAVE_NET_IF_H
-#if defined(__APPLE__) && defined(_LP64)
-/* Apple engineering suggested using options align=power as a
-   workaround for a bug in OS X 10.4 (Tiger) that prevented ioctl(...,
-   SIOCGIFCONF, ...) from working properly in 64 bit mode on Power PC.
-   It turns out that the underlying issue is the size of struct
-   ifconf, which the kernel expects to be 12 and natural 64 bit
-   alignment would make 16.  The same bug appears in 64 bit mode on
-   Intel macs, but align=power is a no-op there, so instead, use the
-   pack pragma to instruct the compiler to pack on 4 byte words, which
-   has the same effect as align=power for our needs and works on both
-   Intel and Power PC Macs. */
-#pragma pack(push,4)
-#endif
 #include <net/if.h>
-#if defined(__APPLE__) && defined(_LP64)
-#pragma pack(pop)
-#endif
 #endif
 #ifdef HAVE_NETDB_H
 #include <netdb.h>

opal/mca/if/linux_ipv6/if_linux_ipv6.c

@@ -1,6 +1,8 @@
 /*
  * Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved.
  * Copyright (c) 2010      Oracle and/or its affiliates.  All rights reserved.
+ * Copyright (c) 2018      Amazon.com, Inc. or its affiliates.  All Rights
+ *                         reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -34,23 +36,7 @@
 #include <arpa/inet.h>
 #endif
 #ifdef HAVE_NET_IF_H
-#if defined(__APPLE__) && defined(_LP64)
-/* Apple engineering suggested using options align=power as a
-   workaround for a bug in OS X 10.4 (Tiger) that prevented ioctl(...,
-   SIOCGIFCONF, ...) from working properly in 64 bit mode on Power PC.
-   It turns out that the underlying issue is the size of struct
-   ifconf, which the kernel expects to be 12 and natural 64 bit
-   alignment would make 16.  The same bug appears in 64 bit mode on
-   Intel macs, but align=power is a no-op there, so instead, use the
-   pack pragma to instruct the compiler to pack on 4 byte words, which
-   has the same effect as align=power for our needs and works on both
-   Intel and Power PC Macs. */
-#pragma pack(push,4)
-#endif
 #include <net/if.h>
-#if defined(__APPLE__) && defined(_LP64)
-#pragma pack(pop)
-#endif
 #endif
 #ifdef HAVE_NETDB_H
 #include <netdb.h>

opal/mca/memory/patcher/configure.m4

@@ -34,15 +34,27 @@ AC_DEFUN([MCA_opal_memory_patcher_COMPILE_MODE], [
 #                        [action-if-cant-compile])
 # ------------------------------------------------
 AC_DEFUN([MCA_opal_memory_patcher_CONFIG],[
-    AC_CONFIG_FILES([opal/mca/memory/patcher/Makefile])
-
-    AC_CHECK_FUNCS([__curbrk])
-
-    AC_CHECK_HEADERS([linux/mman.h sys/syscall.h])
+    # disable on MacOS/Darwin where it isn't used and the deprecated
+    # syscall interface causes compiler warnings.
+    AC_MSG_CHECKING([if memory patcher supports $host_os])
+    case $host_os in
+    darwin*)
+        opal_memory_patcher_happy=no
+    ;;
+    *)
+        opal_memory_patcher_happy=yes
+    ;;
+    esac
+    AC_MSG_RESULT([$opal_memory_patcher_happy])
+
+    AS_IF([test "$opal_memory_patcher_happy" == "yes"], [
+        AC_CHECK_FUNCS([__curbrk])
+	AC_CHECK_HEADERS([linux/mman.h sys/syscall.h])
+	AC_CHECK_DECLS([__mmap], [], [], [#include <sys/mman.h>])
+	AC_CHECK_FUNCS([__mmap])
+	AC_CHECK_DECLS([__syscall], [], [], [#include <sys/syscall.h>])
+	AC_CHECK_FUNCS([__syscall])
+        $1], [$2])
 
-    AC_CHECK_DECLS([__syscall], [], [], [#include <sys/syscall.h>])
-
-    AC_CHECK_FUNCS([__syscall])
-
-    [$1]
+    AC_CONFIG_FILES([opal/mca/memory/patcher/Makefile])
 ])

opal/util/if.c

@@ -16,6 +16,8 @@
  *                         reserved.
  * Copyright (c) 2015-2016 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
+ * Copyright (c) 2018      Amazon.com, Inc. or its affiliates.  All Rights
+ *                         reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -49,23 +51,7 @@
 #include <arpa/inet.h>
 #endif
 #ifdef HAVE_NET_IF_H
-#if defined(__APPLE__) && defined(_LP64)
-/* Apple engineering suggested using options align=power as a
-   workaround for a bug in OS X 10.4 (Tiger) that prevented ioctl(...,
-   SIOCGIFCONF, ...) from working properly in 64 bit mode on Power PC.
-   It turns out that the underlying issue is the size of struct
-   ifconf, which the kernel expects to be 12 and natural 64 bit
-   alignment would make 16.  The same bug appears in 64 bit mode on
-   Intel macs, but align=power is a no-op there, so instead, use the
-   pack pragma to instruct the compiler to pack on 4 byte words, which
-   has the same effect as align=power for our needs and works on both
-   Intel and Power PC Macs. */
-#pragma pack(push,4)
-#endif
 #include <net/if.h>
-#if defined(__APPLE__) && defined(_LP64)
-#pragma pack(pop)
-#endif
 #endif
 #ifdef HAVE_NETDB_H
 #include <netdb.h>

opal/util/net.c

@@ -15,6 +15,8 @@
  * Copyright (c) 2013      Intel, Inc.  All rights reserved.
  * Copyright (c) 2015      Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
+ * Copyright (c) 2018      Amazon.com, Inc. or its affiliates.  All Rights
+ *                         reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -49,23 +51,7 @@
 #include <arpa/inet.h>
 #endif
 #ifdef HAVE_NET_IF_H
-#if defined(__APPLE__) && defined(_LP64)
-/* Apple engineering suggested using options align=power as a
-   workaround for a bug in OS X 10.4 (Tiger) that prevented ioctl(...,
-   SIOCGIFCONF, ...) from working properly in 64 bit mode on Power PC.
-   It turns out that the underlying issue is the size of struct
-   ifconf, which the kernel expects to be 12 and natural 64 bit
-   alignment would make 16.  The same bug appears in 64 bit mode on
-   Intel macs, but align=power is a no-op there, so instead, use the
-   pack pragma to instruct the compiler to pack on 4 byte words, which
-   has the same effect as align=power for our needs and works on both
-   Intel and Power PC Macs. */
-#pragma pack(push,4)
-#endif
 #include <net/if.h>
-#if defined(__APPLE__) && defined(_LP64)
-#pragma pack(pop)
-#endif
 #endif
 #ifdef HAVE_NETDB_H
 #include <netdb.h>