Re: freeze exception qpdf versioned symbols?
Cyril Brulebois <kibi@debian.org> wrote:
> I must confess I'm not really fluent with symbol versioning, but I think
> a patch enabling it for the current package with no further changes
> could be worth an unblock. Feel free to propose a source debdiff (or to
> upload it), and we'll review that.
Okay, I've attached two files here. The first is a copy of
version-symbols.patch with the real changes, so this excludes the
changes to the regenerated configure file. The second file is a source
debdiff. The only changes are a shlibs bump and the addition of
versioned-symbols.patch. The patch includes changes from regeneration
of configure, which you can ignore since the relevant changes are to
configure.ac and most of the configure changes are from the change from
autoconf 2.68 to 2.69. The shlibs bump is needed to make sure packages
that built with the versioned library pull in the versioned library.
If it looks good, I'll proceed with the upload.
--
Jay Berkenbilt <qjb@debian.org>
Index: qpdf-2.3.1/autoconf.mk.in
===================================================================
--- qpdf-2.3.1.orig/autoconf.mk.in 2011-12-28 17:19:40.000000000 -0500
+++ qpdf-2.3.1/autoconf.mk.in 2012-07-18 10:08:07.677346374 -0400
@@ -31,3 +31,4 @@
VALIDATE_DOC=@VALIDATE_DOC@
SKIP_TEST_COMPARE_IMAGES=@SKIP_TEST_COMPARE_IMAGES@
BUILDRULES=@BUILDRULES@
+HAVE_LD_VERSION_SCRIPT=@HAVE_LD_VERSION_SCRIPT@
Index: qpdf-2.3.1/configure.ac
===================================================================
--- qpdf-2.3.1.orig/configure.ac 2011-12-28 17:19:40.000000000 -0500
+++ qpdf-2.3.1/configure.ac 2012-07-18 10:08:07.677346374 -0400
@@ -42,6 +42,40 @@
AC_TYPE_UINT32_T
AC_CHECK_FUNCS(random)
+# Check if LD supports linker scripts, and define conditional
+# HAVE_LD_VERSION_SCRIPT if so. This functionality is currently
+# constrained to compilers using GNU ld on ELF systems or systems
+# which provide an adequate emulation thereof.
+AC_ARG_ENABLE([ld-version-script],
+ AS_HELP_STRING([--enable-ld-version-script],
+ [enable linker version script (default is disabled)]),
+ [have_ld_version_script=$enableval], [have_ld_version_script=yes])
+if test "$have_ld_version_script" != no; then
+ AC_MSG_CHECKING([if LD -Wl,--version-script works])
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
+ cat > conftest.map <<EOF
+VERS_1 {
+ global: sym;
+};
+
+VERS_2 {
+ global: sym;
+} VERS_1;
+EOF
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
+ [have_ld_version_script=yes], [have_ld_version_script=no])
+ rm -f conftest.map
+ LDFLAGS="$save_LDFLAGS"
+ AC_MSG_RESULT($have_ld_version_script)
+fi
+if test "$have_ld_version_script" = "yes"; then
+ HAVE_LD_VERSION_SCRIPT=1
+else
+ HAVE_LD_VERSION_SCRIPT=0
+fi
+AC_SUBST(HAVE_LD_VERSION_SCRIPT)
+
AC_MSG_CHECKING(for gnu make >= 3.81)
make_okay=0
if make --version >/dev/null 2>&1; then
Index: qpdf-2.3.1/libqpdf.map
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ qpdf-2.3.1/libqpdf.map 2012-07-18 10:08:07.677346374 -0400
@@ -0,0 +1,4 @@
+LIBQPDF_3 {
+ global:
+ *;
+};
Index: qpdf-2.3.1/make/libtool.mk
===================================================================
--- qpdf-2.3.1.orig/make/libtool.mk 2011-12-28 17:19:40.000000000 -0500
+++ qpdf-2.3.1/make/libtool.mk 2012-07-18 10:08:07.677346374 -0400
@@ -15,6 +15,12 @@
# --- Private definitions ---
+ifeq ($(HAVE_LD_VERSION_SCRIPT), 1)
+LD_VERSION_FLAGS=-Wl,--version-script=libqpdf.map
+else
+LD_VERSION_FLAGS=
+endif
+
# Usage: $(call libdepflags,$(basename obj))
# Usage: $(call fixdeps,$(basename obj))
ifeq ($(GENDEPS),1)
@@ -80,7 +86,8 @@
# Usage: $(call makelib,objs,library,ldflags,libs,current,revision,age)
define makelib
$(LIBTOOL) --mode=link \
- $(CXX) $(CXXFLAGS) -o $(2) $(1) $(3) $(4) \
+ $(CXX) $(CXXFLAGS) $(LD_VERSION_FLAGS) \
+ -o $(2) $(1) $(3) $(4) \
-rpath $(libdir) -version-info $(5):$(6):$(7)
endef
diff -Nru qpdf-2.3.1/debian/changelog qpdf-2.3.1/debian/changelog
--- qpdf-2.3.1/debian/changelog 2012-05-19 09:21:52.000000000 -0400
+++ qpdf-2.3.1/debian/changelog 2012-07-18 10:20:10.000000000 -0400
@@ -1,3 +1,9 @@
+qpdf (2.3.1-5) unstable; urgency=low
+
+ * Enable versioned symbols.
+
+ -- Jay Berkenbilt <qjb@debian.org> Wed, 18 Jul 2012 10:20:10 -0400
+
qpdf (2.3.1-4) unstable; urgency=low
* Work around portability issues exposed by upgrading to gcc 4.7. The
diff -Nru qpdf-2.3.1/debian/libqpdf3.shlibs qpdf-2.3.1/debian/libqpdf3.shlibs
--- qpdf-2.3.1/debian/libqpdf3.shlibs 2012-04-22 10:25:08.000000000 -0400
+++ qpdf-2.3.1/debian/libqpdf3.shlibs 2012-07-18 10:20:43.000000000 -0400
@@ -1 +1 @@
-libqpdf 3 libqpdf3 (>= 2.3.0)
+libqpdf 3 libqpdf3 (>> 2.3.1-5~)
diff -Nru qpdf-2.3.1/debian/patches/series qpdf-2.3.1/debian/patches/series
--- qpdf-2.3.1/debian/patches/series 2012-05-19 09:18:54.000000000 -0400
+++ qpdf-2.3.1/debian/patches/series 2012-07-18 10:08:15.000000000 -0400
@@ -1,3 +1,4 @@
portability.patch
pcre.patch
man-typo.patch
+versioned-symbols.patch
diff -Nru qpdf-2.3.1/debian/patches/versioned-symbols.patch qpdf-2.3.1/debian/patches/versioned-symbols.patch
--- qpdf-2.3.1/debian/patches/versioned-symbols.patch 1969-12-31 19:00:00.000000000 -0500
+++ qpdf-2.3.1/debian/patches/versioned-symbols.patch 2012-07-18 10:08:30.000000000 -0400
@@ -0,0 +1,1044 @@
+Index: qpdf-2.3.1/autoconf.mk.in
+===================================================================
+--- qpdf-2.3.1.orig/autoconf.mk.in 2011-12-28 17:19:40.000000000 -0500
++++ qpdf-2.3.1/autoconf.mk.in 2012-07-18 10:08:07.677346374 -0400
+@@ -31,3 +31,4 @@
+ VALIDATE_DOC=@VALIDATE_DOC@
+ SKIP_TEST_COMPARE_IMAGES=@SKIP_TEST_COMPARE_IMAGES@
+ BUILDRULES=@BUILDRULES@
++HAVE_LD_VERSION_SCRIPT=@HAVE_LD_VERSION_SCRIPT@
+Index: qpdf-2.3.1/configure.ac
+===================================================================
+--- qpdf-2.3.1.orig/configure.ac 2011-12-28 17:19:40.000000000 -0500
++++ qpdf-2.3.1/configure.ac 2012-07-18 10:08:07.677346374 -0400
+@@ -42,6 +42,40 @@
+ AC_TYPE_UINT32_T
+ AC_CHECK_FUNCS(random)
+
++# Check if LD supports linker scripts, and define conditional
++# HAVE_LD_VERSION_SCRIPT if so. This functionality is currently
++# constrained to compilers using GNU ld on ELF systems or systems
++# which provide an adequate emulation thereof.
++AC_ARG_ENABLE([ld-version-script],
++ AS_HELP_STRING([--enable-ld-version-script],
++ [enable linker version script (default is disabled)]),
++ [have_ld_version_script=$enableval], [have_ld_version_script=yes])
++if test "$have_ld_version_script" != no; then
++ AC_MSG_CHECKING([if LD -Wl,--version-script works])
++ save_LDFLAGS="$LDFLAGS"
++ LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
++ cat > conftest.map <<EOF
++VERS_1 {
++ global: sym;
++};
++
++VERS_2 {
++ global: sym;
++} VERS_1;
++EOF
++ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
++ [have_ld_version_script=yes], [have_ld_version_script=no])
++ rm -f conftest.map
++ LDFLAGS="$save_LDFLAGS"
++ AC_MSG_RESULT($have_ld_version_script)
++fi
++if test "$have_ld_version_script" = "yes"; then
++ HAVE_LD_VERSION_SCRIPT=1
++else
++ HAVE_LD_VERSION_SCRIPT=0
++fi
++AC_SUBST(HAVE_LD_VERSION_SCRIPT)
++
+ AC_MSG_CHECKING(for gnu make >= 3.81)
+ make_okay=0
+ if make --version >/dev/null 2>&1; then
+Index: qpdf-2.3.1/libqpdf.map
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ qpdf-2.3.1/libqpdf.map 2012-07-18 10:08:07.677346374 -0400
+@@ -0,0 +1,4 @@
++LIBQPDF_3 {
++ global:
++ *;
++};
+Index: qpdf-2.3.1/make/libtool.mk
+===================================================================
+--- qpdf-2.3.1.orig/make/libtool.mk 2011-12-28 17:19:40.000000000 -0500
++++ qpdf-2.3.1/make/libtool.mk 2012-07-18 10:08:07.677346374 -0400
+@@ -15,6 +15,12 @@
+
+ # --- Private definitions ---
+
++ifeq ($(HAVE_LD_VERSION_SCRIPT), 1)
++LD_VERSION_FLAGS=-Wl,--version-script=libqpdf.map
++else
++LD_VERSION_FLAGS=
++endif
++
+ # Usage: $(call libdepflags,$(basename obj))
+ # Usage: $(call fixdeps,$(basename obj))
+ ifeq ($(GENDEPS),1)
+@@ -80,7 +86,8 @@
+ # Usage: $(call makelib,objs,library,ldflags,libs,current,revision,age)
+ define makelib
+ $(LIBTOOL) --mode=link \
+- $(CXX) $(CXXFLAGS) -o $(2) $(1) $(3) $(4) \
++ $(CXX) $(CXXFLAGS) $(LD_VERSION_FLAGS) \
++ -o $(2) $(1) $(3) $(4) \
+ -rpath $(libdir) -version-info $(5):$(6):$(7)
+ endef
+
+Index: qpdf-2.3.1/configure
+===================================================================
+--- qpdf-2.3.1.orig/configure 2011-12-28 17:20:43.000000000 -0500
++++ qpdf-2.3.1/configure 2012-07-18 10:08:25.257346605 -0400
+@@ -1,11 +1,9 @@
+ #! /bin/sh
+ # Guess values for system-dependent variables and create Makefiles.
+-# Generated by GNU Autoconf 2.68 for qpdf 2.3.1.
++# Generated by GNU Autoconf 2.69 for qpdf 2.3.1.
+ #
+ #
+-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+-# Foundation, Inc.
++# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+ #
+ #
+ # This configure script is free software; the Free Software Foundation
+@@ -134,6 +132,31 @@
+ # CDPATH.
+ (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
++# Use a proper internal environment variable to ensure we don't fall
++ # into an infinite loop, continuously re-executing ourselves.
++ if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
++ _as_can_reexec=no; export _as_can_reexec;
++ # We cannot yet assume a decent shell, so we have to provide a
++# neutralization value for shells without unset; and this also
++# works around shells that cannot unset nonexistent variables.
++# Preserve -v and -x to the replacement shell.
++BASH_ENV=/dev/null
++ENV=/dev/null
++(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
++case $- in # ((((
++ *v*x* | *x*v* ) as_opts=-vx ;;
++ *v* ) as_opts=-v ;;
++ *x* ) as_opts=-x ;;
++ * ) as_opts= ;;
++esac
++exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
++# Admittedly, this is quite paranoid, since all the known shells bail
++# out after a failed `exec'.
++$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
++as_fn_exit 255
++ fi
++ # We don't want this to propagate to other subprocesses.
++ { _as_can_reexec=; unset _as_can_reexec;}
+ if test "x$CONFIG_SHELL" = x; then
+ as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+ emulate sh
+@@ -167,7 +190,8 @@
+ else
+ exitcode=1; echo positional parameters were not saved.
+ fi
+-test x\$exitcode = x0 || exit 1"
++test x\$exitcode = x0 || exit 1
++test -x / || exit 1"
+ as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+ as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+ eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+@@ -212,21 +236,25 @@
+
+
+ if test "x$CONFIG_SHELL" != x; then :
+- # We cannot yet assume a decent shell, so we have to provide a
+- # neutralization value for shells without unset; and this also
+- # works around shells that cannot unset nonexistent variables.
+- # Preserve -v and -x to the replacement shell.
+- BASH_ENV=/dev/null
+- ENV=/dev/null
+- (unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+- export CONFIG_SHELL
+- case $- in # ((((
+- *v*x* | *x*v* ) as_opts=-vx ;;
+- *v* ) as_opts=-v ;;
+- *x* ) as_opts=-x ;;
+- * ) as_opts= ;;
+- esac
+- exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
++ export CONFIG_SHELL
++ # We cannot yet assume a decent shell, so we have to provide a
++# neutralization value for shells without unset; and this also
++# works around shells that cannot unset nonexistent variables.
++# Preserve -v and -x to the replacement shell.
++BASH_ENV=/dev/null
++ENV=/dev/null
++(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
++case $- in # ((((
++ *v*x* | *x*v* ) as_opts=-vx ;;
++ *v* ) as_opts=-v ;;
++ *x* ) as_opts=-x ;;
++ * ) as_opts= ;;
++esac
++exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
++# Admittedly, this is quite paranoid, since all the known shells bail
++# out after a failed `exec'.
++$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
++exit 255
+ fi
+
+ if test x$as_have_required = xno; then :
+@@ -328,6 +356,14 @@
+
+
+ } # as_fn_mkdir_p
++
++# as_fn_executable_p FILE
++# -----------------------
++# Test if FILE is an executable regular file.
++as_fn_executable_p ()
++{
++ test -f "$1" && test -x "$1"
++} # as_fn_executable_p
+ # as_fn_append VAR VALUE
+ # ----------------------
+ # Append the text in VALUE to the end of the definition contained in VAR. Take
+@@ -449,6 +485,10 @@
+ chmod +x "$as_me.lineno" ||
+ { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
++ # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
++ # already done that, so ensure we don't try to do so again and fall
++ # in an infinite loop. This has already happened in practice.
++ _as_can_reexec=no; export _as_can_reexec
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensitive to this).
+@@ -483,16 +523,16 @@
+ # ... but there are two gotchas:
+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+- # In both cases, we have to default to `cp -p'.
++ # In both cases, we have to default to `cp -pR'.
+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+- as_ln_s='cp -p'
++ as_ln_s='cp -pR'
+ elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+ else
+- as_ln_s='cp -p'
++ as_ln_s='cp -pR'
+ fi
+ else
+- as_ln_s='cp -p'
++ as_ln_s='cp -pR'
+ fi
+ rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+ rmdir conf$$.dir 2>/dev/null
+@@ -504,28 +544,8 @@
+ as_mkdir_p=false
+ fi
+
+-if test -x / >/dev/null 2>&1; then
+- as_test_x='test -x'
+-else
+- if ls -dL / >/dev/null 2>&1; then
+- as_ls_L_option=L
+- else
+- as_ls_L_option=
+- fi
+- as_test_x='
+- eval sh -c '\''
+- if test -d "$1"; then
+- test -d "$1/.";
+- else
+- case $1 in #(
+- -*)set "./$1";;
+- esac;
+- case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+- ???[sx]*):;;*)false;;esac;fi
+- '\'' sh
+- '
+-fi
+-as_executable_p=$as_test_x
++as_test_x='test -x'
++as_executable_p=as_fn_executable_p
+
+ # Sed expression to map a string onto a valid CPP name.
+ as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+@@ -761,6 +781,7 @@
+ SKIP_TEST_COMPARE_IMAGES
+ BUILDRULES
+ GENDEPS
++HAVE_LD_VERSION_SCRIPT
+ CXXCPP
+ OTOOL64
+ OTOOL
+@@ -851,6 +872,7 @@
+ with_gnu_ld
+ enable_libtool_lock
+ enable_external_libs
++enable_ld_version_script
+ with_buildrules
+ enable_werror
+ enable_test_compare_images
+@@ -1329,8 +1351,6 @@
+ if test "x$host_alias" != x; then
+ if test "x$build_alias" = x; then
+ cross_compiling=maybe
+- $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
+- If a cross compiler is detected then cross compile mode will be used" >&2
+ elif test "x$build_alias" != "x$host_alias"; then
+ cross_compiling=yes
+ fi
+@@ -1495,6 +1515,8 @@
+ optimize for fast installation [default=yes]
+ --disable-libtool-lock avoid locking (might break parallel builds)
+ --enable-external-libs whether to use external libraries distribution
++ --enable-ld-version-script
++ enable linker version script (default is disabled)
+ --enable-werror whether to use werror (default is no)
+ --enable-test-compare-images
+ whether to compare images in test suite; enabled by
+@@ -1597,9 +1619,9 @@
+ if $ac_init_version; then
+ cat <<\_ACEOF
+ qpdf configure 2.3.1
+-generated by GNU Autoconf 2.68
++generated by GNU Autoconf 2.69
+
+-Copyright (C) 2010 Free Software Foundation, Inc.
++Copyright (C) 2012 Free Software Foundation, Inc.
+ This configure script is free software; the Free Software Foundation
+ gives unlimited permission to copy, distribute and modify it.
+ _ACEOF
+@@ -1792,7 +1814,7 @@
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext && {
+ test "$cross_compiling" = yes ||
+- $as_test_x conftest$ac_exeext
++ test -x conftest$ac_exeext
+ }; then :
+ ac_retval=0
+ else
+@@ -1973,7 +1995,7 @@
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext && {
+ test "$cross_compiling" = yes ||
+- $as_test_x conftest$ac_exeext
++ test -x conftest$ac_exeext
+ }; then :
+ ac_retval=0
+ else
+@@ -2103,7 +2125,8 @@
+ main ()
+ {
+ static int test_array [1 - 2 * !((($ac_type) -1 >> ($2 / 2 - 1)) >> ($2 / 2 - 1) == 3)];
+-test_array [0] = 0
++test_array [0] = 0;
++return test_array [0];
+
+ ;
+ return 0;
+@@ -2136,7 +2159,7 @@
+ running configure, to aid debugging if configure makes a mistake.
+
+ It was created by qpdf $as_me 2.3.1, which was
+-generated by GNU Autoconf 2.68. Invocation command line was
++generated by GNU Autoconf 2.69. Invocation command line was
+
+ $ $0 $@
+
+@@ -2514,7 +2537,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}gcc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -2554,7 +2577,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="gcc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -2607,7 +2630,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}cc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -2648,7 +2671,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+ ac_prog_rejected=yes
+ continue
+@@ -2706,7 +2729,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -2750,7 +2773,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -3196,8 +3219,7 @@
+ /* end confdefs.h. */
+ #include <stdarg.h>
+ #include <stdio.h>
+-#include <sys/types.h>
+-#include <sys/stat.h>
++struct stat;
+ /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+ struct buf { int x; };
+ FILE * (*rcsopen) (struct buf *, struct stat *, int);
+@@ -3310,7 +3332,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -3354,7 +3376,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CXX="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -3694,7 +3716,7 @@
+ for ac_prog in grep ggrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+- { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
++ as_fn_executable_p "$ac_path_GREP" || continue
+ # Check for GNU ac_path_GREP and select it if it is found.
+ # Check for GNU $ac_path_GREP
+ case `"$ac_path_GREP" --version 2>&1` in
+@@ -3760,7 +3782,7 @@
+ for ac_prog in egrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+- { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
++ as_fn_executable_p "$ac_path_EGREP" || continue
+ # Check for GNU ac_path_EGREP and select it if it is found.
+ # Check for GNU $ac_path_EGREP
+ case `"$ac_path_EGREP" --version 2>&1` in
+@@ -4067,7 +4089,7 @@
+ for ac_prog in sed gsed; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+- { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
++ as_fn_executable_p "$ac_path_SED" || continue
+ # Check for GNU ac_path_SED and select it if it is found.
+ # Check for GNU $ac_path_SED
+ case `"$ac_path_SED" --version 2>&1` in
+@@ -4146,7 +4168,7 @@
+ for ac_prog in fgrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+- { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
++ as_fn_executable_p "$ac_path_FGREP" || continue
+ # Check for GNU ac_path_FGREP and select it if it is found.
+ # Check for GNU $ac_path_FGREP
+ case `"$ac_path_FGREP" --version 2>&1` in
+@@ -4399,7 +4421,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -4443,7 +4465,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -4499,13 +4521,13 @@
+ else
+ lt_cv_nm_interface="BSD nm"
+ echo "int some_variable = 0;" > conftest.$ac_ext
+- (eval echo "\"\$as_me:4502: $ac_compile\"" >&5)
++ (eval echo "\"\$as_me:4524: $ac_compile\"" >&5)
+ (eval "$ac_compile" 2>conftest.err)
+ cat conftest.err >&5
+- (eval echo "\"\$as_me:4505: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
++ (eval echo "\"\$as_me:4527: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+ (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+ cat conftest.err >&5
+- (eval echo "\"\$as_me:4508: output\"" >&5)
++ (eval echo "\"\$as_me:4530: output\"" >&5)
+ cat conftest.out >&5
+ if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+ lt_cv_nm_interface="MS dumpbin"
+@@ -4769,7 +4791,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -4809,7 +4831,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OBJDUMP="objdump"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5081,7 +5103,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_AR="${ac_tool_prefix}ar"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5121,7 +5143,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_AR="ar"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5186,7 +5208,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5226,7 +5248,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_STRIP="strip"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5285,7 +5307,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5325,7 +5347,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_RANLIB="ranlib"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5707,7 +5729,7 @@
+ ;;
+ *-*-irix6*)
+ # Find out which ABI we are using.
+- echo '#line 5710 "configure"' > conftest.$ac_ext
++ echo '#line 5732 "configure"' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+@@ -5889,7 +5911,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5929,7 +5951,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -5981,7 +6003,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6021,7 +6043,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_NMEDIT="nmedit"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6073,7 +6095,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6113,7 +6135,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_LIPO="lipo"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6165,7 +6187,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6205,7 +6227,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OTOOL="otool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6257,7 +6279,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6297,7 +6319,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OTOOL64="otool64"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6514,7 +6536,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6558,7 +6580,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CXX="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6908,7 +6930,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_AS="${ac_tool_prefix}as"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -6948,7 +6970,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_AS="as"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -7000,7 +7022,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -7040,7 +7062,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -7092,7 +7114,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -7132,7 +7154,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OBJDUMP="objdump"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -7684,11 +7706,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:7687: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:7709: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&5
+- echo "$as_me:7691: \$? = $ac_status" >&5
++ echo "$as_me:7713: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+@@ -8023,11 +8045,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:8026: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:8048: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&5
+- echo "$as_me:8030: \$? = $ac_status" >&5
++ echo "$as_me:8052: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+@@ -8128,11 +8150,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:8131: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:8153: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+- echo "$as_me:8135: \$? = $ac_status" >&5
++ echo "$as_me:8157: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+@@ -8183,11 +8205,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:8186: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:8208: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+- echo "$as_me:8190: \$? = $ac_status" >&5
++ echo "$as_me:8212: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+@@ -10566,7 +10588,7 @@
+ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+ lt_status=$lt_dlunknown
+ cat > conftest.$ac_ext <<_LT_EOF
+-#line 10569 "configure"
++#line 10591 "configure"
+ #include "confdefs.h"
+
+ #if HAVE_DLFCN_H
+@@ -10662,7 +10684,7 @@
+ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+ lt_status=$lt_dlunknown
+ cat > conftest.$ac_ext <<_LT_EOF
+-#line 10665 "configure"
++#line 10687 "configure"
+ #include "confdefs.h"
+
+ #if HAVE_DLFCN_H
+@@ -12618,11 +12640,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:12621: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:12643: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&5
+- echo "$as_me:12625: \$? = $ac_status" >&5
++ echo "$as_me:12647: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+@@ -12717,11 +12739,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:12720: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:12742: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+- echo "$as_me:12724: \$? = $ac_status" >&5
++ echo "$as_me:12746: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+@@ -12769,11 +12791,11 @@
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+- (eval echo "\"\$as_me:12772: $lt_compile\"" >&5)
++ (eval echo "\"\$as_me:12794: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+- echo "$as_me:12776: \$? = $ac_status" >&5
++ echo "$as_me:12798: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+@@ -13933,6 +13955,61 @@
+ done
+
+
++# Check if LD supports linker scripts, and define conditional
++# HAVE_LD_VERSION_SCRIPT if so. This functionality is currently
++# constrained to compilers using GNU ld on ELF systems or systems
++# which provide an adequate emulation thereof.
++# Check whether --enable-ld-version-script was given.
++if test "${enable_ld_version_script+set}" = set; then :
++ enableval=$enable_ld_version_script; have_ld_version_script=$enableval
++else
++ have_ld_version_script=yes
++fi
++
++if test "$have_ld_version_script" != no; then
++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if LD -Wl,--version-script works" >&5
++$as_echo_n "checking if LD -Wl,--version-script works... " >&6; }
++ save_LDFLAGS="$LDFLAGS"
++ LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map"
++ cat > conftest.map <<EOF
++VERS_1 {
++ global: sym;
++};
++
++VERS_2 {
++ global: sym;
++} VERS_1;
++EOF
++ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
++/* end confdefs.h. */
++
++int
++main ()
++{
++
++ ;
++ return 0;
++}
++_ACEOF
++if ac_fn_c_try_link "$LINENO"; then :
++ have_ld_version_script=yes
++else
++ have_ld_version_script=no
++fi
++rm -f core conftest.err conftest.$ac_objext \
++ conftest$ac_exeext conftest.$ac_ext
++ rm -f conftest.map
++ LDFLAGS="$save_LDFLAGS"
++ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_ld_version_script" >&5
++$as_echo "$have_ld_version_script" >&6; }
++fi
++if test "$have_ld_version_script" = "yes"; then
++ HAVE_LD_VERSION_SCRIPT=1
++else
++ HAVE_LD_VERSION_SCRIPT=0
++fi
++
++
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gnu make >= 3.81" >&5
+ $as_echo_n "checking for gnu make >= 3.81... " >&6; }
+ make_okay=0
+@@ -14150,7 +14227,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_FOP="fop"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -14187,7 +14264,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_XSLTPROC="xsltproc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -14224,7 +14301,7 @@
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+- if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_XMLLINT="xmllint"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+@@ -14814,16 +14891,16 @@
+ # ... but there are two gotchas:
+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+- # In both cases, we have to default to `cp -p'.
++ # In both cases, we have to default to `cp -pR'.
+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+- as_ln_s='cp -p'
++ as_ln_s='cp -pR'
+ elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+ else
+- as_ln_s='cp -p'
++ as_ln_s='cp -pR'
+ fi
+ else
+- as_ln_s='cp -p'
++ as_ln_s='cp -pR'
+ fi
+ rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+ rmdir conf$$.dir 2>/dev/null
+@@ -14883,28 +14960,16 @@
+ as_mkdir_p=false
+ fi
+
+-if test -x / >/dev/null 2>&1; then
+- as_test_x='test -x'
+-else
+- if ls -dL / >/dev/null 2>&1; then
+- as_ls_L_option=L
+- else
+- as_ls_L_option=
+- fi
+- as_test_x='
+- eval sh -c '\''
+- if test -d "$1"; then
+- test -d "$1/.";
+- else
+- case $1 in #(
+- -*)set "./$1";;
+- esac;
+- case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+- ???[sx]*):;;*)false;;esac;fi
+- '\'' sh
+- '
+-fi
+-as_executable_p=$as_test_x
++
++# as_fn_executable_p FILE
++# -----------------------
++# Test if FILE is an executable regular file.
++as_fn_executable_p ()
++{
++ test -f "$1" && test -x "$1"
++} # as_fn_executable_p
++as_test_x='test -x'
++as_executable_p=as_fn_executable_p
+
+ # Sed expression to map a string onto a valid CPP name.
+ as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+@@ -14926,7 +14991,7 @@
+ # values after options handling.
+ ac_log="
+ This file was extended by qpdf $as_me 2.3.1, which was
+-generated by GNU Autoconf 2.68. Invocation command line was
++generated by GNU Autoconf 2.69. Invocation command line was
+
+ CONFIG_FILES = $CONFIG_FILES
+ CONFIG_HEADERS = $CONFIG_HEADERS
+@@ -14992,10 +15057,10 @@
+ ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ ac_cs_version="\\
+ qpdf config.status 2.3.1
+-configured by $0, generated by GNU Autoconf 2.68,
++configured by $0, generated by GNU Autoconf 2.69,
+ with options \\"\$ac_cs_config\\"
+
+-Copyright (C) 2010 Free Software Foundation, Inc.
++Copyright (C) 2012 Free Software Foundation, Inc.
+ This config.status script is free software; the Free Software Foundation
+ gives unlimited permission to copy, distribute and modify it."
+
+@@ -15083,7 +15148,7 @@
+ _ACEOF
+ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ if \$ac_cs_recheck; then
+- set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
++ set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+ shift
+ \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+ CONFIG_SHELL='$SHELL'
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