Remove duplicated thread/collection code and use new libimobiledevice-glue instead

9 files changed, 15 insertions, 983 deletions

diff --git a/configure.ac b/configure.ac
index 7617d61..d571f48 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,8 +19,10 @@ LIBIRECOVERY_SO_VERSION=3:0:0
 
 dnl Minimum package versions
 LIBUSB_VERSION=1.0.3
+LIMD_GLUE_VERSION=1.0.0
 
 AC_SUBST(LIBIRECOVERY_SO_VERSION)
+AC_SUBST(LIMD_GLUE_VERSION)
 
 # Checks for programs.
 AC_PROG_CC
@@ -28,6 +30,9 @@ AC_PROG_CC
 AM_PROG_CC_C_O
 LT_INIT
 
+# Checks for libraries.
+PKG_CHECK_MODULES(limd_glue, libimobiledevice-glue-1.0 >= $LIMD_GLUE_VERSION)
+
 # Checks for header files.
 AC_CHECK_HEADERS([stdint.h stdlib.h string.h])
 
@@ -58,7 +63,6 @@ case ${host_os} in
 				have_iokit=yes
 			], [])
 		], [])
-		AX_PTHREAD([], [AC_MSG_ERROR([pthread is required to build $PACKAGE])])
 	;;
 	mingw32*)
 		AC_MSG_RESULT([${host_os}])
@@ -74,7 +78,6 @@ case ${host_os} in
 	;;
 	*)
 		AC_MSG_RESULT([${host_os}])
-		AX_PTHREAD([], [AC_MSG_ERROR([pthread is required to build $PACKAGE])])
 	;;
 esac
 AM_CONDITIONAL(WIN32, test x$win32 = xtrue)
@@ -111,8 +114,7 @@ AS_IF([test "x$with_dummy" = "xyes"], [
 	])
 ])
 
-AS_COMPILER_FLAGS(GLOBAL_CFLAGS, "-Wall -Wextra -Wmissing-declarations -Wredundant-decls -Wshadow -Wpointer-arith -Wwrite-strings -Wswitch-default -Wno-unused-parameter -fvisibility=hidden $PTHREAD_CFLAGS")
-GLOBAL_LDFLAGS+=" $PTHREAD_LIBS"
+AS_COMPILER_FLAGS(GLOBAL_CFLAGS, "-Wall -Wextra -Wmissing-declarations -Wredundant-decls -Wshadow -Wpointer-arith -Wwrite-strings -Wswitch-default -Wno-unused-parameter -fvisibility=hidden")
 AC_SUBST(GLOBAL_CFLAGS)
 AC_SUBST(GLOBAL_LDFLAGS)
 
diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4
deleted file mode 100644
index 9f35d13..0000000
--- a/m4/ax_pthread.m4
+++ /dev/null
@@ -1,522 +0,0 @@
-# ===========================================================================
-#        https://www.gnu.org/software/autoconf-archive/ax_pthread.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
-#
-# DESCRIPTION
-#
-#   This macro figures out how to build C programs using POSIX threads. It
-#   sets the PTHREAD_LIBS output variable to the threads library and linker
-#   flags, and the PTHREAD_CFLAGS output variable to any special C compiler
-#   flags that are needed. (The user can also force certain compiler
-#   flags/libs to be tested by setting these environment variables.)
-#
-#   Also sets PTHREAD_CC and PTHREAD_CXX to any special C compiler that is
-#   needed for multi-threaded programs (defaults to the value of CC
-#   respectively CXX otherwise). (This is necessary on e.g. AIX to use the
-#   special cc_r/CC_r compiler alias.)
-#
-#   NOTE: You are assumed to not only compile your program with these flags,
-#   but also to link with them as well. For example, you might link with
-#   $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
-#   $PTHREAD_CXX $CXXFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
-#
-#   If you are only building threaded programs, you may wish to use these
-#   variables in your default LIBS, CFLAGS, and CC:
-#
-#     LIBS="$PTHREAD_LIBS $LIBS"
-#     CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-#     CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
-#     CC="$PTHREAD_CC"
-#     CXX="$PTHREAD_CXX"
-#
-#   In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
-#   has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to
-#   that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
-#
-#   Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
-#   PTHREAD_PRIO_INHERIT symbol is defined when compiling with
-#   PTHREAD_CFLAGS.
-#
-#   ACTION-IF-FOUND is a list of shell commands to run if a threads library
-#   is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
-#   is not found. If ACTION-IF-FOUND is not specified, the default action
-#   will define HAVE_PTHREAD.
-#
-#   Please let the authors know if this macro fails on any platform, or if
-#   you have any other suggestions or comments. This macro was based on work
-#   by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
-#   from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
-#   Alejandro Forero Cuervo to the autoconf macro repository. We are also
-#   grateful for the helpful feedback of numerous users.
-#
-#   Updated for Autoconf 2.68 by Daniel Richard G.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
-#   Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG>
-#   Copyright (c) 2019 Marc Stevens <marc.stevens@cwi.nl>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <https://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 31
-
-AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
-AC_DEFUN([AX_PTHREAD], [
-AC_REQUIRE([AC_CANONICAL_HOST])
-AC_REQUIRE([AC_PROG_CC])
-AC_REQUIRE([AC_PROG_SED])
-AC_LANG_PUSH([C])
-ax_pthread_ok=no
-
-# We used to check for pthread.h first, but this fails if pthread.h
-# requires special compiler flags (e.g. on Tru64 or Sequent).
-# It gets checked for in the link test anyway.
-
-# First of all, check if the user has set any of the PTHREAD_LIBS,
-# etcetera environment variables, and if threads linking works using
-# them:
-if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
-        ax_pthread_save_CC="$CC"
-        ax_pthread_save_CFLAGS="$CFLAGS"
-        ax_pthread_save_LIBS="$LIBS"
-        AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"])
-        AS_IF([test "x$PTHREAD_CXX" != "x"], [CXX="$PTHREAD_CXX"])
-        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-        LIBS="$PTHREAD_LIBS $LIBS"
-        AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS])
-        AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes])
-        AC_MSG_RESULT([$ax_pthread_ok])
-        if test "x$ax_pthread_ok" = "xno"; then
-                PTHREAD_LIBS=""
-                PTHREAD_CFLAGS=""
-        fi
-        CC="$ax_pthread_save_CC"
-        CFLAGS="$ax_pthread_save_CFLAGS"
-        LIBS="$ax_pthread_save_LIBS"
-fi
-
-# We must check for the threads library under a number of different
-# names; the ordering is very important because some systems
-# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
-# libraries is broken (non-POSIX).
-
-# Create a list of thread flags to try. Items with a "," contain both
-# C compiler flags (before ",") and linker flags (after ","). Other items
-# starting with a "-" are C compiler flags, and remaining items are
-# library names, except for "none" which indicates that we try without
-# any flags at all, and "pthread-config" which is a program returning
-# the flags for the Pth emulation library.
-
-ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
-
-# The ordering *is* (sometimes) important.  Some notes on the
-# individual items follow:
-
-# pthreads: AIX (must check this before -lpthread)
-# none: in case threads are in libc; should be tried before -Kthread and
-#       other compiler flags to prevent continual compiler warnings
-# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
-#           (Note: HP C rejects this with "bad form for `-t' option")
-# -pthreads: Solaris/gcc (Note: HP C also rejects)
-# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-#      doesn't hurt to check since this sometimes defines pthreads and
-#      -D_REENTRANT too), HP C (must be checked before -lpthread, which
-#      is present but should not be used directly; and before -mthreads,
-#      because the compiler interprets this as "-mt" + "-hreads")
-# -mthreads: Mingw32/gcc, Lynx/gcc
-# pthread: Linux, etcetera
-# --thread-safe: KAI C++
-# pthread-config: use pthread-config program (for GNU Pth library)
-
-case $host_os in
-
-        freebsd*)
-
-        # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-        # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-
-        ax_pthread_flags="-kthread lthread $ax_pthread_flags"
-        ;;
-
-        hpux*)
-
-        # From the cc(1) man page: "[-mt] Sets various -D flags to enable
-        # multi-threading and also sets -lpthread."
-
-        ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
-        ;;
-
-        openedition*)
-
-        # IBM z/OS requires a feature-test macro to be defined in order to
-        # enable POSIX threads at all, so give the user a hint if this is
-        # not set. (We don't define these ourselves, as they can affect
-        # other portions of the system API in unpredictable ways.)
-
-        AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING],
-            [
-#            if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
-             AX_PTHREAD_ZOS_MISSING
-#            endif
-            ],
-            [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])])
-        ;;
-
-        solaris*)
-
-        # On Solaris (at least, for some versions), libc contains stubbed
-        # (non-functional) versions of the pthreads routines, so link-based
-        # tests will erroneously succeed. (N.B.: The stubs are missing
-        # pthread_cleanup_push, or rather a function called by this macro,
-        # so we could check for that, but who knows whether they'll stub
-        # that too in a future libc.)  So we'll check first for the
-        # standard Solaris way of linking pthreads (-mt -lpthread).
-
-        ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags"
-        ;;
-esac
-
-# Are we compiling with Clang?
-
-AC_CACHE_CHECK([whether $CC is Clang],
-    [ax_cv_PTHREAD_CLANG],
-    [ax_cv_PTHREAD_CLANG=no
-     # Note that Autoconf sets GCC=yes for Clang as well as GCC
-     if test "x$GCC" = "xyes"; then
-        AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG],
-            [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
-#            if defined(__clang__) && defined(__llvm__)
-             AX_PTHREAD_CC_IS_CLANG
-#            endif
-            ],
-            [ax_cv_PTHREAD_CLANG=yes])
-     fi
-    ])
-ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
-
-
-# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
-
-# Note that for GCC and Clang -pthread generally implies -lpthread,
-# except when -nostdlib is passed.
-# This is problematic using libtool to build C++ shared libraries with pthread:
-# [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460
-# [2] https://bugzilla.redhat.com/show_bug.cgi?id=661333
-# [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468555
-# To solve this, first try -pthread together with -lpthread for GCC
-
-AS_IF([test "x$GCC" = "xyes"],
-      [ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"])
-
-# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first
-
-AS_IF([test "x$ax_pthread_clang" = "xyes"],
-      [ax_pthread_flags="-pthread,-lpthread -pthread"])
-
-
-# The presence of a feature test macro requesting re-entrant function
-# definitions is, on some systems, a strong hint that pthreads support is
-# correctly enabled
-
-case $host_os in
-        darwin* | hpux* | linux* | osf* | solaris*)
-        ax_pthread_check_macro="_REENTRANT"
-        ;;
-
-        aix*)
-        ax_pthread_check_macro="_THREAD_SAFE"
-        ;;
-
-        *)
-        ax_pthread_check_macro="--"
-        ;;
-esac
-AS_IF([test "x$ax_pthread_check_macro" = "x--"],
-      [ax_pthread_check_cond=0],
-      [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"])
-
-
-if test "x$ax_pthread_ok" = "xno"; then
-for ax_pthread_try_flag in $ax_pthread_flags; do
-
-        case $ax_pthread_try_flag in
-                none)
-                AC_MSG_CHECKING([whether pthreads work without any flags])
-                ;;
-
-                *,*)
-                PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"`
-                PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"`
-                AC_MSG_CHECKING([whether pthreads work with "$PTHREAD_CFLAGS" and "$PTHREAD_LIBS"])
-                ;;
-
-                -*)
-                AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag])
-                PTHREAD_CFLAGS="$ax_pthread_try_flag"
-                ;;
-
-                pthread-config)
-                AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
-                AS_IF([test "x$ax_pthread_config" = "xno"], [continue])
-                PTHREAD_CFLAGS="`pthread-config --cflags`"
-                PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
-                ;;
-
-                *)
-                AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag])
-                PTHREAD_LIBS="-l$ax_pthread_try_flag"
-                ;;
-        esac
-
-        ax_pthread_save_CFLAGS="$CFLAGS"
-        ax_pthread_save_LIBS="$LIBS"
-        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-        LIBS="$PTHREAD_LIBS $LIBS"
-
-        # Check for various functions.  We must include pthread.h,
-        # since some functions may be macros.  (On the Sequent, we
-        # need a special flag -Kthread to make this header compile.)
-        # We check for pthread_join because it is in -lpthread on IRIX
-        # while pthread_create is in libc.  We check for pthread_attr_init
-        # due to DEC craziness with -lpthreads.  We check for
-        # pthread_cleanup_push because it is one of the few pthread
-        # functions on Solaris that doesn't have a non-functional libc stub.
-        # We try pthread_create on general principles.
-
-        AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
-#                       if $ax_pthread_check_cond
-#                        error "$ax_pthread_check_macro must be defined"
-#                       endif
-                        static void *some_global = NULL;
-                        static void routine(void *a)
-                          {
-                             /* To avoid any unused-parameter or
-                                unused-but-set-parameter warning.  */
-                             some_global = a;
-                          }
-                        static void *start_routine(void *a) { return a; }],
-                       [pthread_t th; pthread_attr_t attr;
-                        pthread_create(&th, 0, start_routine, 0);
-                        pthread_join(th, 0);
-                        pthread_attr_init(&attr);
-                        pthread_cleanup_push(routine, 0);
-                        pthread_cleanup_pop(0) /* ; */])],
-            [ax_pthread_ok=yes],
-            [])
-
-        CFLAGS="$ax_pthread_save_CFLAGS"
-        LIBS="$ax_pthread_save_LIBS"
-
-        AC_MSG_RESULT([$ax_pthread_ok])
-        AS_IF([test "x$ax_pthread_ok" = "xyes"], [break])
-
-        PTHREAD_LIBS=""
-        PTHREAD_CFLAGS=""
-done
-fi
-
-
-# Clang needs special handling, because older versions handle the -pthread
-# option in a rather... idiosyncratic way
-
-if test "x$ax_pthread_clang" = "xyes"; then
-
-        # Clang takes -pthread; it has never supported any other flag
-
-        # (Note 1: This will need to be revisited if a system that Clang
-        # supports has POSIX threads in a separate library.  This tends not
-        # to be the way of modern systems, but it's conceivable.)
-
-        # (Note 2: On some systems, notably Darwin, -pthread is not needed
-        # to get POSIX threads support; the API is always present and
-        # active.  We could reasonably leave PTHREAD_CFLAGS empty.  But
-        # -pthread does define _REENTRANT, and while the Darwin headers
-        # ignore this macro, third-party headers might not.)
-
-        # However, older versions of Clang make a point of warning the user
-        # that, in an invocation where only linking and no compilation is
-        # taking place, the -pthread option has no effect ("argument unused
-        # during compilation").  They expect -pthread to be passed in only
-        # when source code is being compiled.
-        #
-        # Problem is, this is at odds with the way Automake and most other
-        # C build frameworks function, which is that the same flags used in
-        # compilation (CFLAGS) are also used in linking.  Many systems
-        # supported by AX_PTHREAD require exactly this for POSIX threads
-        # support, and in fact it is often not straightforward to specify a
-        # flag that is used only in the compilation phase and not in
-        # linking.  Such a scenario is extremely rare in practice.
-        #
-        # Even though use of the -pthread flag in linking would only print
-        # a warning, this can be a nuisance for well-run software projects
-        # that build with -Werror.  So if the active version of Clang has
-        # this misfeature, we search for an option to squash it.
-
-        AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],
-            [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG],
-            [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
-             # Create an alternate version of $ac_link that compiles and
-             # links in two steps (.c -> .o, .o -> exe) instead of one
-             # (.c -> exe), because the warning occurs only in the second
-             # step
-             ax_pthread_save_ac_link="$ac_link"
-             ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
-             ax_pthread_link_step=`AS_ECHO(["$ac_link"]) | sed "$ax_pthread_sed"`
-             ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
-             ax_pthread_save_CFLAGS="$CFLAGS"
-             for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
-                AS_IF([test "x$ax_pthread_try" = "xunknown"], [break])
-                CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
-                ac_link="$ax_pthread_save_ac_link"
-                AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
-                    [ac_link="$ax_pthread_2step_ac_link"
-                     AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
-                         [break])
-                    ])
-             done
-             ac_link="$ax_pthread_save_ac_link"
-             CFLAGS="$ax_pthread_save_CFLAGS"
-             AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no])
-             ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
-            ])
-
-        case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
-                no | unknown) ;;
-                *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
-        esac
-
-fi # $ax_pthread_clang = yes
-
-
-
-# Various other checks:
-if test "x$ax_pthread_ok" = "xyes"; then
-        ax_pthread_save_CFLAGS="$CFLAGS"
-        ax_pthread_save_LIBS="$LIBS"
-        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-        LIBS="$PTHREAD_LIBS $LIBS"
-
-        # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
-        AC_CACHE_CHECK([for joinable pthread attribute],
-            [ax_cv_PTHREAD_JOINABLE_ATTR],
-            [ax_cv_PTHREAD_JOINABLE_ATTR=unknown
-             for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-                 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
-                                                 [int attr = $ax_pthread_attr; return attr /* ; */])],
-                                [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break],
-                                [])
-             done
-            ])
-        AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
-               test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
-               test "x$ax_pthread_joinable_attr_defined" != "xyes"],
-              [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE],
-                                  [$ax_cv_PTHREAD_JOINABLE_ATTR],
-                                  [Define to necessary symbol if this constant
-                                   uses a non-standard name on your system.])
-               ax_pthread_joinable_attr_defined=yes
-              ])
-
-        AC_CACHE_CHECK([whether more special flags are required for pthreads],
-            [ax_cv_PTHREAD_SPECIAL_FLAGS],
-            [ax_cv_PTHREAD_SPECIAL_FLAGS=no
-             case $host_os in
-             solaris*)
-             ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
-             ;;
-             esac
-            ])
-        AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
-               test "x$ax_pthread_special_flags_added" != "xyes"],
-              [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
-               ax_pthread_special_flags_added=yes])
-
-        AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
-            [ax_cv_PTHREAD_PRIO_INHERIT],
-            [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
-                                             [[int i = PTHREAD_PRIO_INHERIT;
-                                               return i;]])],
-                            [ax_cv_PTHREAD_PRIO_INHERIT=yes],
-                            [ax_cv_PTHREAD_PRIO_INHERIT=no])
-            ])
-        AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
-               test "x$ax_pthread_prio_inherit_defined" != "xyes"],
-              [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])
-               ax_pthread_prio_inherit_defined=yes
-              ])
-
-        CFLAGS="$ax_pthread_save_CFLAGS"
-        LIBS="$ax_pthread_save_LIBS"
-
-        # More AIX lossage: compile with *_r variant
-        if test "x$GCC" != "xyes"; then
-            case $host_os in
-                aix*)
-                AS_CASE(["x/$CC"],
-                    [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
-                    [#handle absolute path differently from PATH based program lookup
-                     AS_CASE(["x$CC"],
-                         [x/*],
-                         [
-			   AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])
-			   AS_IF([test "x${CXX}" != "x"], [AS_IF([AS_EXECUTABLE_P([${CXX}_r])],[PTHREAD_CXX="${CXX}_r"])])
-			 ],
-                         [
-			   AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])
-			   AS_IF([test "x${CXX}" != "x"], [AC_CHECK_PROGS([PTHREAD_CXX],[${CXX}_r],[$CXX])])
-			 ]
-                     )
-                    ])
-                ;;
-            esac
-        fi
-fi
-
-test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
-test -n "$PTHREAD_CXX" || PTHREAD_CXX="$CXX"
-
-AC_SUBST([PTHREAD_LIBS])
-AC_SUBST([PTHREAD_CFLAGS])
-AC_SUBST([PTHREAD_CC])
-AC_SUBST([PTHREAD_CXX])
-
-# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test "x$ax_pthread_ok" = "xyes"; then
-        ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
-        :
-else
-        ax_pthread_ok=no
-        $2
-fi
-AC_LANG_POP
-])dnl AX_PTHREAD
diff --git a/src/Makefile.am b/src/Makefile.am
index 06a6374..f80ffa7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,19 +3,18 @@ AM_CPPFLAGS = -I$(top_srcdir)/include
 AM_CFLAGS = \
 	$(GLOBAL_CFLAGS) \
 	$(LFS_CFLAGS) \
+	$(limd_glue_CFLAGS) \
 	$(libusb_CFLAGS)
 
 AM_LDFLAGS = \
 	$(GLOBAL_LDFLAGS) \
+	$(limd_glue_LIBS) \
 	$(libusb_LIBS)
 
 lib_LTLIBRARIES = libirecovery-1.0.la
 libirecovery_1_0_la_CFLAGS = $(AM_CFLAGS)
 libirecovery_1_0_la_LDFLAGS = $(AM_LDFLAGS) -version-info $(LIBIRECOVERY_SO_VERSION) -no-undefined
-libirecovery_1_0_la_SOURCES = \
-	libirecovery.c \
-	utils.c utils.h \
-	thread.c thread.h
+libirecovery_1_0_la_SOURCES = libirecovery.c
 
 if WIN32
 libirecovery_1_0_la_LDFLAGS += -avoid-version
diff --git a/src/libirecovery-1.0.pc.in b/src/libirecovery-1.0.pc.in
index 25144da..e6c94a3 100644
--- a/src/libirecovery-1.0.pc.in
+++ b/src/libirecovery-1.0.pc.in
@@ -8,4 +8,4 @@ Description: A library to communicate with iBoot/iBSS on iOS devices via USB
 Version: @PACKAGE_VERSION@
 Libs: -L${libdir} -lirecovery-1.0
 Cflags: -I${includedir}
-Requires.private: @LIBUSB_REQUIRED@
+Requires.private: libimobiledevice-glue-1.0 >= @LIMD_GLUE_VERSION@ @LIBUSB_REQUIRED@
diff --git a/src/libirecovery.c b/src/libirecovery.c
index 2219f36..0446e01 100644
--- a/src/libirecovery.c
+++ b/src/libirecovery.c
@@ -32,11 +32,13 @@
 #include <unistd.h>
 #include <sys/stat.h>
 
+#include <libimobiledevice-glue/collection.h>
+#include <libimobiledevice-glue/thread.h>
+
 #ifndef USE_DUMMY
 #ifndef WIN32
 #ifndef HAVE_IOKIT
 #include <libusb.h>
-#include <pthread.h>
 #if (defined(LIBUSB_API_VERSION) && (LIBUSB_API_VERSION >= 0x01000102)) || (defined(LIBUSBX_API_VERSION) && (LIBUSBX_API_VERSION >= 0x01000102))
 #define HAVE_LIBUSB_HOTPLUG_API 1
 #endif
@@ -44,7 +46,6 @@
 #include <CoreFoundation/CoreFoundation.h>
 #include <IOKit/usb/IOUSBLib.h>
 #include <IOKit/IOCFPlugIn.h>
-#include <pthread.h>
 #endif
 #else
 #define WIN32_LEAN_AND_MEAN
@@ -67,8 +68,6 @@
 #endif
 
 #include "libirecovery.h"
-#include "utils.h"
-#include "thread.h"
 
 struct irecv_client_private {
 	int debug;
@@ -2977,8 +2976,8 @@ IRECV_API irecv_error_t irecv_trigger_limera1n_exploit(irecv_client_t client) {
 	// which can be accomplished by sending on another thread.
 
 	void *args[2] = { client->handle, &req };
-	pthread_t thread;
-	pthread_create(&thread, NULL, iokit_limera1n_usb_submit_request, args);
+	THREAD_T thread;
+	thread_new(&thread, iokit_limera1n_usb_submit_request, args);
 
 	usleep(5 * 1000);
 	result = (*client->handle)->USBDeviceAbortPipeZero(client->handle);
diff --git a/src/thread.c b/src/thread.c
deleted file mode 100644
index 796ea0b..0000000
--- a/src/thread.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/*
- * thread.c
- *
- * Copyright (c) 2012-2019 Nikias Bassen, All Rights Reserved.
- * Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "thread.h"
-
-int thread_new(THREAD_T *thread, thread_func_t thread_func, void* data)
-{
-#ifdef WIN32
-	HANDLE th = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)thread_func, data, 0, NULL);
-	if (th == NULL) {
-		return -1;
-	}
-	*thread = th;
-	return 0;
-#else
-	int res = pthread_create(thread, NULL, thread_func, data);
-	return res;
-#endif
-}
-
-void thread_detach(THREAD_T thread)
-{
-#ifdef WIN32
-	CloseHandle(thread);
-#else
-	pthread_detach(thread);
-#endif
-}
-
-void thread_free(THREAD_T thread)
-{
-#ifdef WIN32
-	CloseHandle(thread);
-#endif
-}
-
-int thread_join(THREAD_T thread)
-{
-	/* wait for thread to complete */
-#ifdef WIN32
-	return (int)WaitForSingleObject(thread, INFINITE);
-#else
-	return pthread_join(thread, NULL);
-#endif
-}
-
-int thread_alive(THREAD_T thread)
-{
-	if (!thread)
-		return 0;
-#ifdef WIN32
-	return WaitForSingleObject(thread, 0) == WAIT_TIMEOUT;
-#else
-	return pthread_kill(thread, 0) == 0;
-#endif
-}
-
-int thread_cancel(THREAD_T thread)
-{
-#ifdef WIN32
-	return -1;
-#else
-#ifdef HAVE_PTHREAD_CANCEL
-	return pthread_cancel(thread);
-#else
-	return -1;
-#endif
-#endif
-}
-
-void mutex_init(mutex_t* mutex)
-{
-#ifdef WIN32
-	InitializeCriticalSection(mutex);
-#else
-	pthread_mutex_init(mutex, NULL);
-#endif
-}
-
-void mutex_destroy(mutex_t* mutex)
-{
-#ifdef WIN32
-	DeleteCriticalSection(mutex);
-#else
-	pthread_mutex_destroy(mutex);
-#endif
-}
-
-void mutex_lock(mutex_t* mutex)
-{
-#ifdef WIN32
-	EnterCriticalSection(mutex);
-#else
-	pthread_mutex_lock(mutex);
-#endif
-}
-
-void mutex_unlock(mutex_t* mutex)
-{
-#ifdef WIN32
-	LeaveCriticalSection(mutex);
-#else
-	pthread_mutex_unlock(mutex);
-#endif
-}
-
-void thread_once(thread_once_t *once_control, void (*init_routine)(void))
-{
-#ifdef WIN32
-	while (InterlockedExchange(&(once_control->lock), 1) != 0) {
-		Sleep(1);
-	}
-	if (!once_control->state) {
-		once_control->state = 1;
-		init_routine();
-	}
-	InterlockedExchange(&(once_control->lock), 0);
-#else
-	pthread_once(once_control, init_routine);
-#endif
-}
-
-void cond_init(cond_t* cond)
-{
-#ifdef WIN32
-	cond->sem = CreateSemaphore(NULL, 0, 32767, NULL);
-#else
-	pthread_cond_init(cond, NULL);
-#endif
-}
-
-void cond_destroy(cond_t* cond)
-{
-#ifdef WIN32
-	CloseHandle(cond->sem);
-#else
-	pthread_cond_destroy(cond);
-#endif
-}
-
-int cond_signal(cond_t* cond)
-{
-#ifdef WIN32
-	int result = 0;
-	if (!ReleaseSemaphore(cond->sem, 1, NULL)) {
-		result = -1;
-	}
-	return result;
-#else
-	return pthread_cond_signal(cond);
-#endif
-}
-
-int cond_wait(cond_t* cond, mutex_t* mutex)
-{
-#ifdef WIN32
-	mutex_unlock(mutex);
-	DWORD res = WaitForSingleObject(cond->sem, INFINITE);
-	switch (res) {
-		case WAIT_OBJECT_0:
-			return 0;
-		default:
-			return -1;
-	}
-#else
-	return pthread_cond_wait(cond, mutex);
-#endif
-}
-
-int cond_wait_timeout(cond_t* cond, mutex_t* mutex, unsigned int timeout_ms)
-{
-#ifdef WIN32
-	mutex_unlock(mutex);
-	DWORD res = WaitForSingleObject(cond->sem, timeout_ms);
-	switch (res) {
-		case WAIT_OBJECT_0:
-		case WAIT_TIMEOUT:
-			return 0;
-		default:
-			return -1;
-	}
-#else
-	struct timespec ts;
-	struct timeval now;
-	gettimeofday(&now, NULL);
-
-	ts.tv_sec = now.tv_sec + timeout_ms / 1000;
-	ts.tv_nsec = now.tv_usec * 1000 + 1000 * 1000 * (timeout_ms % 1000);
-	ts.tv_sec += ts.tv_nsec / (1000 * 1000 * 1000);
-	ts.tv_nsec %= (1000 * 1000 * 1000);
-
-	return pthread_cond_timedwait(cond, mutex, &ts);
-#endif
-}
diff --git a/src/thread.h b/src/thread.h
deleted file mode 100644
index 2aadc6e..0000000
--- a/src/thread.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * thread.h
- *
- * Copyright (c) 2012-2019 Nikias Bassen, All Rights Reserved.
- * Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef __THREAD_H
-#define __THREAD_H
-
-#include <stddef.h>
-
-#ifdef WIN32
-#include <windows.h>
-typedef HANDLE THREAD_T;
-typedef CRITICAL_SECTION mutex_t;
-typedef struct {
-	HANDLE sem;
-} cond_t;
-typedef volatile struct {
-	LONG lock;
-	int state;
-} thread_once_t;
-#define THREAD_ONCE_INIT {0, 0}
-#define THREAD_ID GetCurrentThreadId()
-#define THREAD_T_NULL (THREAD_T)NULL
-#else
-#include <pthread.h>
-#include <signal.h>
-#include <sys/time.h>
-typedef pthread_t THREAD_T;
-typedef pthread_mutex_t mutex_t;
-typedef pthread_cond_t cond_t;
-typedef pthread_once_t thread_once_t;
-#define THREAD_ONCE_INIT PTHREAD_ONCE_INIT
-#define THREAD_ID pthread_self()
-#define THREAD_T_NULL (THREAD_T)NULL
-#endif
-
-typedef void* (*thread_func_t)(void* data);
-
-int thread_new(THREAD_T* thread, thread_func_t thread_func, void* data);
-void thread_detach(THREAD_T thread);
-void thread_free(THREAD_T thread);
-int thread_join(THREAD_T thread);
-int thread_alive(THREAD_T thread);
-
-int thread_cancel(THREAD_T thread);
-
-#ifdef WIN32
-#undef HAVE_THREAD_CLEANUP
-#else
-#ifdef HAVE_PTHREAD_CANCEL
-#define HAVE_THREAD_CLEANUP 1
-#define thread_cleanup_push(routine, arg) pthread_cleanup_push(routine, arg)
-#define thread_cleanup_pop(execute) pthread_cleanup_pop(execute)
-#endif
-#endif
-
-void mutex_init(mutex_t* mutex);
-void mutex_destroy(mutex_t* mutex);
-void mutex_lock(mutex_t* mutex);
-void mutex_unlock(mutex_t* mutex);
-
-void thread_once(thread_once_t *once_control, void (*init_routine)(void));
-
-void cond_init(cond_t* cond);
-void cond_destroy(cond_t* cond);
-int cond_signal(cond_t* cond);
-int cond_wait(cond_t* cond, mutex_t* mutex);
-int cond_wait_timeout(cond_t* cond, mutex_t* mutex, unsigned int timeout_ms);
-
-#endif
diff --git a/src/utils.c b/src/utils.c
deleted file mode 100644
index 826bfbe..0000000
--- a/src/utils.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * utils.c
- *
- * Copyright (C) 2009 Hector Martin <hector@marcansoft.com>
- * Copyright (C) 2009 Nikias Bassen <nikias@gmx.li>
- * Copyright (c) 2013 Federico Mena Quintero
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation, either version 2.1 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-
-#include "utils.h"
-
-#define CAPACITY_STEP 8
-
-void collection_init(struct collection *col)
-{
-	col->list = malloc(sizeof(void *) * CAPACITY_STEP);
-	memset(col->list, 0, sizeof(void *) * CAPACITY_STEP);
-	col->capacity = CAPACITY_STEP;
-}
-
-void collection_free(struct collection *col)
-{
-	free(col->list);
-	col->list = NULL;
-	col->capacity = 0;
-}
-
-void collection_add(struct collection *col, void *element)
-{
-	int i;
-	for(i=0; i<col->capacity; i++) {
-		if(!col->list[i]) {
-			col->list[i] = element;
-			return;
-		}
-	}
-	col->list = realloc(col->list, sizeof(void*) * (col->capacity + CAPACITY_STEP));
-	memset(&col->list[col->capacity], 0, sizeof(void *) * CAPACITY_STEP);
-	col->list[col->capacity] = element;
-	col->capacity += CAPACITY_STEP;
-}
-
-void collection_remove(struct collection *col, void *element)
-{
-	int i;
-	for(i=0; i<col->capacity; i++) {
-		if(col->list[i] == element) {
-			col->list[i] = NULL;
-			return;
-		}
-	}
-}
-
-int collection_count(struct collection *col)
-{
-	int i, cnt = 0;
-	for(i=0; i<col->capacity; i++) {
-		if(col->list[i])
-			cnt++;
-	}
-	return cnt;
-}
-
-void collection_copy(struct collection *dest, struct collection *src)
-{
-	if (!dest || !src) return;
-	dest->capacity = src->capacity;
-	dest->list = malloc(sizeof(void*) * src->capacity);
-	memcpy(dest->list, src->list, sizeof(void*) * src->capacity);
-}
diff --git a/src/utils.h b/src/utils.h
deleted file mode 100644
index ccb3a09..0000000
--- a/src/utils.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * utils.h
- *
- * Copyright (C) 2009 Hector Martin <hector@marcansoft.com>
- * Copyright (C) 2009 Nikias Bassen <nikias@gmx.li>
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation, either version 2.1 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef UTILS_H
-#define UTILS_H
-
-struct collection {
-	void **list;
-	int capacity;
-};
-
-void collection_init(struct collection *col);
-void collection_add(struct collection *col, void *element);
-void collection_remove(struct collection *col, void *element);
-int collection_count(struct collection *col);
-void collection_free(struct collection *col);
-void collection_copy(struct collection *dest, struct collection *src);
-
-#define MERGE_(a,b) a ## _ ## b
-#define LABEL_(a,b) MERGE_(a, b)
-#define UNIQUE_VAR(a) LABEL_(a, __LINE__)
-
-#define FOREACH(var, col) \
-	do { \
-		int UNIQUE_VAR(_iter); \
-		for(UNIQUE_VAR(_iter)=0; UNIQUE_VAR(_iter)<(col)->capacity; UNIQUE_VAR(_iter)++) { \
-			if(!(col)->list[UNIQUE_VAR(_iter)]) continue; \
-			var = (col)->list[UNIQUE_VAR(_iter)];
-
-#define ENDFOREACH \
-		} \
-	} while(0);
-
-#endif