build: glibc has removed rpc headers and rpcgen in Fedora28, use libtirpc

Other Linux distributions are doing the same; some others have already
done so.

Switch to libtirpc(-devel) and unbundled rpcgen packages. For now
rpcgen is still provided by the glibc-rpcgen RPM, but rpcsvc-proto's
rpcgen subpackage is available now but will not be used until
glibc-rpcgen is retired. (note, rpcsvc-proto's rpcgen is just named
rpcgen-...rpm. I.e. not rpcsvc-proto-rpcgen.) Right now either one
will satisfy the BuildRequires: rpcgen.

Also, when a .spec file has
  BuildRequires: foo-devel
it is not necessary to also have:
  BuildRequires: foo
or even:
  BuildRequires: foo foo-devel

The foo-devel package has a dependency on foo, which will install foo
automatically. It's usually also not necessary to have a corresponding
  Requires: foo
as the rpmbuild process will also automatically determine the
install-time dependencies.

And other minor glusterfs.spec.in cleanup of ipv6-default, including
sorting the argument definitions because the comment says "keep them
sorted" (Though nobody appears to have ever sorted them in the first
place.)

Change-Id: I86f847dfda0fef83e22c6e8b761342d652a2d9ba
BUG: 1538723
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
(cherry picked from commit 0c57232ae07f48bd6483bfe88a182f832377ef52)

2 files changed, 91 insertions, 51 deletions

diff --git a/configure.ac b/configure.ac
index 6bc5ebd39be..f8b89e1ff64 100644
--- a/configure.ac
+++ b/configure.ac
@@ -264,9 +264,9 @@ AC_CONFIG_FILES([Makefile
                 heal/Makefile
                 heal/src/Makefile
                 glusterfs.spec
-		tools/glusterfind/src/tool.conf
-	        tools/glusterfind/glusterfind
-	        tools/glusterfind/Makefile
+                tools/glusterfind/src/tool.conf
+                tools/glusterfind/glusterfind
+                tools/glusterfind/Makefile
                 tools/glusterfind/src/Makefile
                 tools/setgfid2path/Makefile
                 tools/setgfid2path/src/Makefile])
@@ -297,19 +297,19 @@ else
 fi
 
 AC_ARG_WITH([libtirpc],
-        AS_HELP_STRING([--with-libtirpc], [Use libtirpc as RPC implementation (instead of sunrpc)]),
-        [], [with_libtirpc=no])
+        [AC_HELP_STRING([--without-libtirpc], [Use legacy glibc RPC.])],
+        [], [with_libtirpc=yes])
+AC_MSG_RESULT([$with_libtirpc])
+
+AC_ARG_WITH([ipv6-default],
+        AC_HELP_STRING([--with-ipv6-default], [Set IPv6 as default.]),
+        [with_ipv6_default=$with_libtirpc], [with_ipv6_default=no])
+AC_MSG_RESULT([$with_ipv6_default])
 
-AC_ARG_WITH([ipv6-default], AC_HELP_STRING([--with-ipv6-default], [Set IPv6 as default.]))
-if test "x$with_ipv6_default" = "xyes"; then
-        IPV6_DEFAULT=yes
-else
-        IPV6_DEFAULT=no
-fi
 if test "x$ac_cv_file__etc_redhat_release" = "xyes"; then
         if rpm -qa centos-release | grep centos; then
                 if rpm -q centos-release | grep "release-6"; then
-                        IPV6_DEFAULT=no;
+                        with_ipv6_default=no
                 fi
         fi
 fi
@@ -1079,15 +1079,31 @@ AC_SUBST(GF_DISTRIBUTION)
 GF_HOST_OS=""
 GF_LDFLAGS="-rdynamic"
 
+DISABLE_LIBTIRPC=no
 dnl include tirpc for IPv6 builds
-if test "x$with_libtirpc" = "xyes" || test "x$IPV6_DEFAULT" = "xyes" ; then
+if test "x$with_libtirpc" = "xyes" || test "x$with_ipv6_default" = "xyes" ; then
     PKG_CHECK_MODULES([TIRPC], [libtirpc],
        [GF_CFLAGS="$GF_CFLAGS $TIRPC_CFLAGS"; GF_LDFLAGS="$GF_LDFLAGS $TIRPC_LIBS";],
-       [AC_MSG_ERROR([libtirpc requested or needed for IPv6 default but library not found])]
-    )
+       [DISABLE_LIBTIRPC=yes])
 fi
 
-if test "x$IPV6_DEFAULT" = "xyes" ; then
+if test "x$DISABLE_LIBTIRPC" = "xyes" ; then
+    with_libtirpc=no; with_ipv6_default=no
+    AC_CHECK_HEADERS([rpc/rpc.h],[
+        AC_MSG_WARN([
+            ---------------------------------------------------------------------------------
+            libtirpc or ipv6-default were enabled (by default) but libtirpc-devel is not
+            installed. Disabling libtirpc and ipv6-default and using legacy glibc rpc headers
+            This is a transistional warning message. Eventually it will be an error message
+            ---------------------------------------------------------------------------------])],[
+        AC_MSG_ERROR([
+            ---------------------------------------------------------------------------------
+            libtirpc or ipv6-default were enabled (by default) but libtirpc-devel is not
+            installed and there were no legacy glibc rpc headers and library to fall back to.
+            ---------------------------------------------------------------------------------])])
+fi
+
+if test "x$with_ipv6_default" = "xyes" ; then
    GF_CFLAGS="$GF_CFLAGS -DIPV6_DEFAULT"
 fi
 
@@ -1155,11 +1171,11 @@ fi
 
 old_prefix=$prefix
 if test "x$prefix" = xNONE; then
-	prefix=$ac_default_prefix
+        prefix=$ac_default_prefix
 fi
 old_exec_prefix=$exec_prefix
 if test "x$exec_prefix" = xNONE; then
-	exec_prefix="$(eval echo $prefix)"
+        exec_prefix="$(eval echo $prefix)"
 fi
 GLUSTERFS_LIBEXECDIR="$(eval echo $libexecdir)/glusterfs"
 GLUSTERFSD_MISCDIR="$(eval echo $prefix)/var/lib/misc/glusterfsd"
@@ -1630,4 +1646,6 @@ echo "EC dynamic support   : $EC_DYNAMIC_SUPPORT"
 echo "Use memory pools     : $USE_MEMPOOL"
 echo "Nanosecond m/atimes  : $BUILD_NANOSECOND_TIMESTAMPS"
 echo "Legacy gNFS server   : $BUILD_GNFS"
+echo "IPV6 default         : $with_ipv6_default"
+echo "Use TIRPC            : $with_libtirpc"
 echo
diff --git a/glusterfs.spec.in b/glusterfs.spec.in
index ec366bc8138..ba9bc9838e3 100644
--- a/glusterfs.spec.in
+++ b/glusterfs.spec.in
@@ -9,39 +9,36 @@
 ## All argument definitions should be placed here and keep them sorted
 ##
 
-# if you wish to compile an rpm with debugging...
-# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with debug
-%{?_with_debug:%global _with_debug --enable-debug}
-
-# if you wish to compile an rpm to run all processes under valgrind...
-# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with valgrind
-%{?_with_valgrind:%global _with_valgrind --enable-valgrind}
+# bd
+# if you wish to compile an rpm without the BD map support...
+# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without bd
+%{?_without_bd:%global _without_bd --disable-bd-xlator}
 
-# if you wish to compile an rpm with IPv6 default...
-# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with ipv6default
-%{?_with_ipv6default:%global _with_ipv6default --with-ipv6default}
+%if ( 0%{?rhel} && 0%{?rhel} < 6 || 0%{?sles_version} )
+%global _without_bd --disable-bd-xlator
+%endif
 
+# cmocka
 # if you wish to compile an rpm with cmocka unit testing...
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with cmocka
 %{?_with_cmocka:%global _with_cmocka --enable-cmocka}
 
-# if you wish to compile an rpm without rdma support, compile like this...
-# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without rdma
-%{?_without_rdma:%global _without_rdma --disable-ibverbs}
-
-# No RDMA Support on s390(x)
-%ifarch s390 s390x armv7hl
-%global _without_rdma --disable-ibverbs
-%endif
+# debug
+# if you wish to compile an rpm with debugging...
+# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with debug
+%{?_with_debug:%global _with_debug --enable-debug}
 
+# epoll
 # if you wish to compile an rpm without epoll...
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without epoll
 %{?_without_epoll:%global _without_epoll --disable-epoll}
 
+# fusermount
 # if you wish to compile an rpm without fusermount...
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without fusermount
 %{?_without_fusermount:%global _without_fusermount --disable-fusermount}
 
+# geo-rep
 # if you wish to compile an rpm without geo-replication support, compile like this...
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without georeplication
 %{?_without_georeplication:%global _without_georeplication --disable-georeplication}
@@ -51,14 +48,37 @@
 %global _without_georeplication --disable-georeplication
 %endif
 
+# gnfs
 # if you wish to compile an rpm with the legacy gNFS server xlator
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with gnfs
 %{?_with_gnfs:%global _with_gnfs --enable-gnfs}
 
+# ipv6default
+# if you wish to compile an rpm with IPv6 default...
+# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with ipv6default
+%{?_with_ipv6default:%global _with_ipv6default --with-ipv6-default}
+
+# libtirpc
+# if you wish to compile an rpm without TIRPC (i.e. use legacy glibc rpc)
+# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without libtirpc
+%{?_without_libtirpc:%global _without_libtirpc --without-libtirpc}
+
+# ocf
 # if you wish to compile an rpm without the OCF resource agents...
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without ocf
 %{?_without_ocf:%global _without_ocf --without-ocf}
 
+# rdma
+# if you wish to compile an rpm without rdma support, compile like this...
+# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without rdma
+%{?_without_rdma:%global _without_rdma --disable-ibverbs}
+
+# No RDMA Support on s390(x)
+%ifarch s390 s390x armv7hl
+%global _without_rdma --disable-ibverbs
+%endif
+
+# syslog
 # if you wish to build rpms without syslog logging, compile like this
 # rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without syslog
 %{?_without_syslog:%global _without_syslog --disable-syslog}
@@ -71,19 +91,17 @@
 %global _without_syslog --disable-syslog
 %endif
 
-# if you wish to compile an rpm without the BD map support...
-# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --without bd
-%{?_without_bd:%global _without_bd --disable-bd-xlator}
-
-%if ( 0%{?rhel} && 0%{?rhel} < 6 || 0%{?sles_version} )
-%global _without_bd --disable-bd-xlator
-%endif
-
+# tier
 # Disable data-tiering on EL5, sqlite is too old
 %if ( 0%{?rhel} && 0%{?rhel} < 6 )
 %global _without_tiering --disable-tiering
 %endif
 
+# valgrind
+# if you wish to compile an rpm to run all processes under valgrind...
+# rpmbuild -ta @PACKAGE_NAME@-@PACKAGE_VERSION@.tar.gz --with valgrind
+%{?_with_valgrind:%global _with_valgrind --enable-valgrind}
+
 ##-----------------------------------------------------------------------------
 ## All %%global definitions should be placed here and keep them sorted
 ##
@@ -219,8 +237,11 @@ BuildRequires:    python2-devel
 %if ( 0%{?fedora} && 0%{?fedora} < 26 ) || ( 0%{?rhel} )
 BuildRequires:    python-ctypes
 %endif
-%if ( 0%{?_with_ipv6default:1} )
-BuildRequires:    libtirpc libtirpc-devel
+%if ( 0%{?_with_ipv6default:1} ) && ( 0%{!?_without_libtirpc:1} )
+BuildRequires:    libtirpc-devel
+%endif
+%if ( 0%{?fedora} && 0%{?fedora} > 27 )
+BuildRequires:    rpcgen
 %endif
 BuildRequires:    userspace-rcu-devel >= 0.7
 %if ( 0%{?rhel} && 0%{?rhel} <= 6 )
@@ -560,9 +581,6 @@ Requires:         %{name}-cli%{?_isa} = %{version}-%{release}
 Requires:         %{name}-libs%{?_isa} = %{version}-%{release}
 # some daemons (like quota) use a fuse-mount, glusterfsd is part of -fuse
 Requires:         %{name}-fuse%{?_isa} = %{version}-%{release}
-%if ( 0%{?_with_ipv6default:1} )
-Requires:         libtirpc
-%endif
 # self-heal daemon, rebalance, nfs-server etc. are actually clients
 Requires:         %{name}-api%{?_isa} = %{version}-%{release}
 Requires:         %{name}-client-xlators%{?_isa} = %{version}-%{release}
@@ -684,7 +702,8 @@ export CFLAGS
         %{?_without_rdma} \
         %{?_without_syslog} \
         %{?_without_tiering} \
-        %{?_with_ipv6default}
+        %{?_with_ipv6default} \
+        %{?_without_libtirpc}
 
 # fix hardening and remove rpath in shlibs
 %if ( 0%{?fedora} && 0%{?fedora} > 17 ) || ( 0%{?rhel} && 0%{?rhel} > 6 )
@@ -1380,10 +1399,13 @@ exit 0
 %endif
 
 %changelog
+* Thu Jan 18 2018 Kaleb S. KEITHLEY <kkeithle@redhat.com>
+- Fedora 28 glibc has removed rpc headers and rpcgen, use libtirpc
+
 * Mon Dec 25 2017 Niels de Vos <ndevos@redhat.com>
 - Fedora 28 has renamed pyxattr
 
-* Wed Nov 10 2017 Mohit Agrawal <moagrawa@redhat.com>
+* Wed Sep 27 2017 Mohit Agrawal <moagrawa@redhat.com>
 - Added control-cpu-load.sh and control-mem.sh scripts to glusterfs-server section(#1496335)
 
 * Tue Aug 22 2017 Kaleb S. KEITHLEY <kkeithle@redhat.com>