diff --git a/config/ax_restore_flags.m4 b/config/ax_restore_flags.m4 new file mode 100644 index 000000000..cf03cae79 --- /dev/null +++ b/config/ax_restore_flags.m4 @@ -0,0 +1,31 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_restore_flags.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_RESTORE_FLAGS() +# +# DESCRIPTION +# +# Restore common compilation flags from temporary variables +# +# LICENSE +# +# Copyright (c) 2009 Filippo Giunchedi +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 3 + +AC_DEFUN([AX_RESTORE_FLAGS], [ + CPPFLAGS="${CPPFLAGS_save}" + CFLAGS="${CFLAGS_save}" + CXXFLAGS="${CXXFLAGS_save}" + OBJCFLAGS="${OBJCFLAGS_save}" + LDFLAGS="${LDFLAGS_save}" + LIBS="${LIBS_save}" +]) diff --git a/config/ax_save_flags.m4 b/config/ax_save_flags.m4 new file mode 100644 index 000000000..d2a054223 --- /dev/null +++ b/config/ax_save_flags.m4 @@ -0,0 +1,31 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_save_flags.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_SAVE_FLAGS() +# +# DESCRIPTION +# +# Save common compilation flags into temporary variables +# +# LICENSE +# +# Copyright (c) 2009 Filippo Giunchedi +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 3 + +AC_DEFUN([AX_SAVE_FLAGS], [ + CPPFLAGS_save="${CPPFLAGS}" + CFLAGS_save="${CFLAGS}" + CXXFLAGS_save="${CXXFLAGS}" + OBJCFLAGS_save="${OBJCFLAGS}" + LDFLAGS_save="${LDFLAGS}" + LIBS_save="${LIBS}" +]) diff --git a/config/find_system_library.m4 b/config/find_system_library.m4 new file mode 100644 index 000000000..9d22bcfab --- /dev/null +++ b/config/find_system_library.m4 @@ -0,0 +1,73 @@ +# find_system_lib.m4 - Macros to search for a system library. -*- Autoconf -*- + +dnl requires pkg.m4 from pkg-config +dnl requires ax_save_flags.m4 from autoconf-archive +dnl requires ax_restore_flags.m4 from autoconf-archive + +dnl FIND_SYSTEM_LIBRARY(VARIABLE-PREFIX, MODULE, HEADER, HEADER-PREFIXES, LIBRARY, FUNCTIONS, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) + +AC_DEFUN([FIND_SYSTEM_LIBRARY], [ + AC_REQUIRE([PKG_PROG_PKG_CONFIG]) + + _library_found= + + PKG_CHECK_MODULES([$1], [$2], [_library_found=1], [ + AS_IF([test -f /usr/include/[$3]], [ + AC_SUBST([$1][_CFLAGS], []) + AC_SUBST([$1][_LIBS], ["-l[$5]]") + _library_found=1 + ],[ AS_IF([test -f /usr/local/include/[$3]], [ + AC_SUBST([$1][_CFLAGS], ["-I/usr/local/include"]) + AC_SUBST([$1][_LIBS], ["-L/usr/local -l[$5]]") + _library_found=1 + ],[dnl ELSE + m4_foreach([prefix], [$4], [ + AS_IF([test "x$_library_found" != "x1"], [ + AS_IF([test -f [/usr/include/]prefix[/][$3]], [ + AC_SUBST([$1][_CFLAGS], ["[-I/usr/include/]prefix["]]) + AC_SUBST([$1][_LIBS], ["-l[$5]]") + _library_found=1 + ],[ AS_IF([test -f [/usr/local/include/]prefix[/][$3]], [ + AC_SUBST([$1][_CFLAGS], ["[-I/usr/local/include/]prefix["]]) + AC_SUBST([$1][_LIBS], ["-L/usr/local -l[$5]"]) + _library_found=1 + ])]) + ]) + ]) + ])]) + + AS_IF([test -z "$_library_found"], [ + AC_MSG_WARN([cannot find [$2] via pkg-config or in the standard locations]) + ]) + ]) + + dnl do some further sanity checks + + AS_IF([test -n "$_library_found"], [ + AX_SAVE_FLAGS + + CPPFLAGS="$CPPFLAGS $(echo $[$1][_CFLAGS] | sed 's/-include */-include-/g; s/^/ /; s/ [^-][^ ]*//g; s/ -[^Ii][^ ]*//g; s/-include-/-include /g; s/^ //;')" + CFLAGS="$CFLAGS $[$1][_CFLAGS]" + LDFLAGS="$LDFLAGS $[$1][_LIBS]" + + AC_CHECK_HEADER([$3], [], [ + AC_MSG_WARN([header [$3] for library [$2] is not usable]) + _library_found= + ]) + + m4_foreach([func], [$6], [ + AC_CHECK_LIB([$5], func, [], [ + AC_MSG_WARN([cannot find ]func[ in library [$5]]) + _library_found= + ]) + ]) + + AX_RESTORE_FLAGS + ]) + + AS_IF([test -n "$_library_found"], [ + :;$7 + ],[dnl ELSE + :;$8 + ]) +]) diff --git a/config/pkg.m4 b/config/pkg.m4 new file mode 100644 index 000000000..13a889017 --- /dev/null +++ b/config/pkg.m4 @@ -0,0 +1,275 @@ +# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- +# serial 12 (pkg-config-0.29.2) + +dnl Copyright © 2004 Scott James Remnant . +dnl Copyright © 2012-2015 Dan Nicholson +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 2 of the License, or +dnl (at your option) any later version. +dnl +dnl This program is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +dnl General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software +dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA +dnl 02111-1307, USA. +dnl +dnl As a special exception to the GNU General Public License, if you +dnl distribute this file as part of a program that contains a +dnl configuration script generated by Autoconf, you may include it under +dnl the same distribution terms that you use for the rest of that +dnl program. + +dnl PKG_PREREQ(MIN-VERSION) +dnl ----------------------- +dnl Since: 0.29 +dnl +dnl Verify that the version of the pkg-config macros are at least +dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's +dnl installed version of pkg-config, this checks the developer's version +dnl of pkg.m4 when generating configure. +dnl +dnl To ensure that this macro is defined, also add: +dnl m4_ifndef([PKG_PREREQ], +dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) +dnl +dnl See the "Since" comment for each macro you use to see what version +dnl of the macros you require. +m4_defun([PKG_PREREQ], +[m4_define([PKG_MACROS_VERSION], [0.29.2]) +m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, + [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) +])dnl PKG_PREREQ + +dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) +dnl ---------------------------------- +dnl Since: 0.16 +dnl +dnl Search for the pkg-config tool and set the PKG_CONFIG variable to +dnl first found in the path. Checks that the version of pkg-config found +dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is +dnl used since that's the first version where most current features of +dnl pkg-config existed. +AC_DEFUN([PKG_PROG_PKG_CONFIG], +[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) +m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) +m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) +AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) +AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) +AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) + +if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then + AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) +fi +if test -n "$PKG_CONFIG"; then + _pkg_min_version=m4_default([$1], [0.9.0]) + AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) + if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + PKG_CONFIG="" + fi +fi[]dnl +])dnl PKG_PROG_PKG_CONFIG + +dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ------------------------------------------------------------------- +dnl Since: 0.18 +dnl +dnl Check to see whether a particular set of modules exists. Similar to +dnl PKG_CHECK_MODULES(), but does not set variables or print errors. +dnl +dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +dnl only at the first occurence in configure.ac, so if the first place +dnl it's called might be skipped (such as if it is within an "if", you +dnl have to call PKG_CHECK_EXISTS manually +AC_DEFUN([PKG_CHECK_EXISTS], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +if test -n "$PKG_CONFIG" && \ + AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then + m4_default([$2], [:]) +m4_ifvaln([$3], [else + $3])dnl +fi]) + +dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) +dnl --------------------------------------------- +dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting +dnl pkg_failed based on the result. +m4_define([_PKG_CONFIG], +[if test -n "$$1"; then + pkg_cv_[]$1="$$1" + elif test -n "$PKG_CONFIG"; then + PKG_CHECK_EXISTS([$3], + [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` + test "x$?" != "x0" && pkg_failed=yes ], + [pkg_failed=yes]) + else + pkg_failed=untried +fi[]dnl +])dnl _PKG_CONFIG + +dnl _PKG_SHORT_ERRORS_SUPPORTED +dnl --------------------------- +dnl Internal check to see if pkg-config supports short errors. +AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) +if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then + _pkg_short_errors_supported=yes +else + _pkg_short_errors_supported=no +fi[]dnl +])dnl _PKG_SHORT_ERRORS_SUPPORTED + + +dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +dnl [ACTION-IF-NOT-FOUND]) +dnl -------------------------------------------------------------- +dnl Since: 0.4.0 +dnl +dnl Note that if there is a possibility the first call to +dnl PKG_CHECK_MODULES might not happen, you should be sure to include an +dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac +AC_DEFUN([PKG_CHECK_MODULES], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl +AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl + +pkg_failed=no +AC_MSG_CHECKING([for $2]) + +_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) +_PKG_CONFIG([$1][_LIBS], [libs], [$2]) + +m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS +and $1[]_LIBS to avoid the need to call pkg-config. +See the pkg-config man page for more details.]) + +if test $pkg_failed = yes; then + AC_MSG_RESULT([no]) + _PKG_SHORT_ERRORS_SUPPORTED + if test $_pkg_short_errors_supported = yes; then + $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` + else + $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` + fi + # Put the nasty error message in config.log where it belongs + echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD + + m4_default([$4], [AC_MSG_ERROR( +[Package requirements ($2) were not met: + +$$1_PKG_ERRORS + +Consider adjusting the PKG_CONFIG_PATH environment variable if you +installed software in a non-standard prefix. + +_PKG_TEXT])[]dnl + ]) +elif test $pkg_failed = untried; then + AC_MSG_RESULT([no]) + m4_default([$4], [AC_MSG_FAILURE( +[The pkg-config script could not be found or is too old. Make sure it +is in your PATH or set the PKG_CONFIG environment variable to the full +path to pkg-config. + +_PKG_TEXT + +To get pkg-config, see .])[]dnl + ]) +else + $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS + $1[]_LIBS=$pkg_cv_[]$1[]_LIBS + AC_MSG_RESULT([yes]) + $3 +fi[]dnl +])dnl PKG_CHECK_MODULES + + +dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], +dnl [ACTION-IF-NOT-FOUND]) +dnl --------------------------------------------------------------------- +dnl Since: 0.29 +dnl +dnl Checks for existence of MODULES and gathers its build flags with +dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags +dnl and VARIABLE-PREFIX_LIBS from --libs. +dnl +dnl Note that if there is a possibility the first call to +dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to +dnl include an explicit call to PKG_PROG_PKG_CONFIG in your +dnl configure.ac. +AC_DEFUN([PKG_CHECK_MODULES_STATIC], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +_save_PKG_CONFIG=$PKG_CONFIG +PKG_CONFIG="$PKG_CONFIG --static" +PKG_CHECK_MODULES($@) +PKG_CONFIG=$_save_PKG_CONFIG[]dnl +])dnl PKG_CHECK_MODULES_STATIC + + +dnl PKG_INSTALLDIR([DIRECTORY]) +dnl ------------------------- +dnl Since: 0.27 +dnl +dnl Substitutes the variable pkgconfigdir as the location where a module +dnl should install pkg-config .pc files. By default the directory is +dnl $libdir/pkgconfig, but the default can be changed by passing +dnl DIRECTORY. The user can override through the --with-pkgconfigdir +dnl parameter. +AC_DEFUN([PKG_INSTALLDIR], +[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) +m4_pushdef([pkg_description], + [pkg-config installation directory @<:@]pkg_default[@:>@]) +AC_ARG_WITH([pkgconfigdir], + [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, + [with_pkgconfigdir=]pkg_default) +AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) +m4_popdef([pkg_default]) +m4_popdef([pkg_description]) +])dnl PKG_INSTALLDIR + + +dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) +dnl -------------------------------- +dnl Since: 0.27 +dnl +dnl Substitutes the variable noarch_pkgconfigdir as the location where a +dnl module should install arch-independent pkg-config .pc files. By +dnl default the directory is $datadir/pkgconfig, but the default can be +dnl changed by passing DIRECTORY. The user can override through the +dnl --with-noarch-pkgconfigdir parameter. +AC_DEFUN([PKG_NOARCH_INSTALLDIR], +[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) +m4_pushdef([pkg_description], + [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) +AC_ARG_WITH([noarch-pkgconfigdir], + [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, + [with_noarch_pkgconfigdir=]pkg_default) +AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) +m4_popdef([pkg_default]) +m4_popdef([pkg_description]) +])dnl PKG_NOARCH_INSTALLDIR + + +dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, +dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ------------------------------------------- +dnl Since: 0.28 +dnl +dnl Retrieves the value of the pkg-config variable for the given module. +AC_DEFUN([PKG_CHECK_VAR], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl + +_PKG_CONFIG([$1], [variable="][$3]["], [$2]) +AS_VAR_COPY([$1], [pkg_cv_][$1]) + +AS_VAR_IF([$1], [""], [$5], [$4])dnl +])dnl PKG_CHECK_VAR diff --git a/config/user-libtirpc.m4 b/config/user-libtirpc.m4 index 5f929061f..19c02c9d5 100644 --- a/config/user-libtirpc.m4 +++ b/config/user-libtirpc.m4 @@ -4,27 +4,27 @@ dnl # AC_DEFUN([ZFS_AC_CONFIG_USER_LIBTIRPC], [ AC_ARG_WITH([tirpc], [AS_HELP_STRING([--with-tirpc], - [use tirpc for xdr encoding @<:@default=check@:>@])], + [use tirpc for xdr encoding @<:@default=check@:>@])], [], [with_tirpc=check]) - LIBTIRPC= - LIBTIRPC_CFLAGS= + have_xdr= - AS_IF([test "x$with_tirpc" != xno], - [AC_CHECK_LIB([tirpc], [xdrmem_create], - [AC_SUBST([LIBTIRPC], [-ltirpc]) - AC_SUBST([LIBTIRPC_CFLAGS], [-I/usr/include/tirpc]) - AC_DEFINE([HAVE_LIBTIRPC], [1], [Define if you have libtirpc]) - ], - [if test "x$with_tirpc" != xcheck; then - AC_MSG_FAILURE( - [--with-tirpc was given, but test for tirpc failed]) - fi - AC_SEARCH_LIBS([xdrmem_create], [tirpc], [], [ - AC_MSG_FAILURE([xdrmem_create() requires tirpc or libc])]) - ])], - [AC_SEARCH_LIBS([xdrmem_create], [tirpc], [], [ - AC_MSG_FAILURE([xdrmem_create() requires libc])]) + AS_IF([test "x$with_tirpc" != "xyes"], [ + AC_SEARCH_LIBS([xdrmem_create], [], [have_xdr=1], [ + AS_IF([test "x$with_tirpc" = "xno"], [ + AC_MSG_FAILURE([xdrmem_create() requires sunrpc support in libc if not using libtirpc]) + ]) ]) + ]) + + AS_IF([test "x$have_xdr" = "x"], [ + FIND_SYSTEM_LIBRARY(LIBTIRPC, [libtirpc], [rpc/xdr.h], [tirpc], [tirpc], [xdrmem_create], [], [ + AS_IF([test "x$with_tirpc" = "xyes"], [ + AC_MSG_FAILURE([--with-tirpc was given, but libtirpc is not available, try installing libtirpc-devel]) + ],[dnl ELSE + AC_MSG_FAILURE([neither libc sunrpc support nor libtirpc is available, try installing libtirpc-devel]) + ]) + ]) + ]) ]) diff --git a/configure.ac b/configure.ac index 7a84c249a..3d9fd2848 100644 --- a/configure.ac +++ b/configure.ac @@ -48,6 +48,7 @@ AC_CONFIG_HEADERS([zfs_config.h], [ AC_PROG_INSTALL AC_PROG_CC AC_PROG_LIBTOOL +PKG_PROG_PKG_CONFIG AM_PROG_AS AM_PROG_CC_C_O AX_CODE_COVERAGE diff --git a/lib/libnvpair/Makefile.am b/lib/libnvpair/Makefile.am index 8d6519f30..6d59d7bfc 100644 --- a/lib/libnvpair/Makefile.am +++ b/lib/libnvpair/Makefile.am @@ -4,11 +4,9 @@ VPATH = \ $(top_srcdir)/module/nvpair \ $(top_srcdir)/lib/libnvpair -# Required CFLAGS for libtirpc -AM_CFLAGS += $(LIBTIRPC_CFLAGS) - # Includes kernel code, generate warnings for large stack frames -AM_CFLAGS += $(FRAME_LARGER_THAN) +# and required CFLAGS for libtirpc +AM_CFLAGS += $(FRAME_LARGER_THAN) $(LIBTIRPC_CFLAGS) DEFAULT_INCLUDES += \ -I$(top_srcdir)/include \ @@ -30,7 +28,7 @@ nodist_libnvpair_la_SOURCES = \ $(USER_C) \ $(KERNEL_C) -libnvpair_la_LIBADD = $(LIBTIRPC) +libnvpair_la_LIBADD = $(LIBTIRPC_LIBS) libnvpair_la_LDFLAGS = -version-info 1:1:0 EXTRA_DIST = $(USER_C) diff --git a/lib/libspl/Makefile.am b/lib/libspl/Makefile.am index 5fceaf6a5..cd74676dd 100644 --- a/lib/libspl/Makefile.am +++ b/lib/libspl/Makefile.am @@ -10,6 +10,8 @@ DIST_SUBDIRS = include asm-generic asm-i386 asm-x86_64 DEFAULT_INCLUDES += \ -I$(top_srcdir)/lib/libspl/include +AM_CFLAGS += $(LIBTIRPC_CFLAGS) + AM_CCASFLAGS = \ $(CFLAGS) @@ -35,6 +37,6 @@ nodist_libspl_la_SOURCES = \ $(USER_C) \ $(USER_ASM) -libspl_la_LIBADD = -lrt +libspl_la_LIBADD = -lrt $(LIBTIRPC_LIBS) EXTRA_DIST = $(USER_C) diff --git a/lib/libspl/include/rpc/xdr.h b/lib/libspl/include/rpc/xdr.h index 3c7c53fcc..27e4395c7 100644 --- a/lib/libspl/include/rpc/xdr.h +++ b/lib/libspl/include/rpc/xdr.h @@ -32,21 +32,12 @@ #ifndef LIBSPL_RPC_XDR_H #define LIBSPL_RPC_XDR_H -/* - * When available prefer libtirpc for xdr functionality. This library is - * mandatory when compiling with musl libc because it does not provide xdr. - */ -#if defined(HAVE_LIBTIRPC) +#include_next -#include -#ifdef xdr_control +#ifdef xdr_control /* if e.g. using tirpc */ #undef xdr_control #endif -#else -#include_next -#endif /* HAVE_LIBTIRPC */ - #define XDR_GET_BYTES_AVAIL 1 typedef struct xdr_bytesrec {