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updated ax_pthread.m4

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hyung-hwan
2020-02-27 07:57:19 +00:00
parent 8af190ac46
commit 51b52ca844
18 changed files with 2480 additions and 2396 deletions
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535
configure vendored
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@ -726,7 +726,6 @@ am__nodep
AMDEPBACKSLASH
AMDEP_FALSE
AMDEP_TRUE
am__quote
am__include
DEPDIR
OBJEXT
@ -784,7 +783,6 @@ infodir
docdir
oldincludedir
includedir
runstatedir
localstatedir
sharedstatedir
sysconfdir
@ -803,7 +801,8 @@ PACKAGE_VERSION
PACKAGE_TARNAME
PACKAGE_NAME
PATH_SEPARATOR
SHELL'
SHELL
am__quote'
ac_subst_files=''
ac_user_opts='
enable_option_checking
@ -879,7 +878,6 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@ -1132,15 +1130,6 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
-runstatedir | --runstatedir | --runstatedi | --runstated \
| --runstate | --runstat | --runsta | --runst | --runs \
| --run | --ru | --r)
ac_prev=runstatedir ;;
-runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
| --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
| --run=* | --ru=* | --r=*)
runstatedir=$ac_optarg ;;
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@ -1278,7 +1267,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
libdir localedir mandir runstatedir
libdir localedir mandir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@ -1431,7 +1420,6 @@ Fine tuning of the installation directories:
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
--runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@ -2652,7 +2640,7 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
ac_compiler_gnu=$ac_cv_c_compiler_gnu
am__api_version='1.15'
am__api_version='1.16'
# Find a good install program. We prefer a C program (faster),
# so one script is as good as another. But avoid the broken or
@ -3168,8 +3156,8 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
# For better backward compatibility. To be removed once Automake 1.9.x
# dies out for good. For more background, see:
# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
mkdir_p='$(MKDIR_P)'
# We need awk for the "check" target (and possibly the TAP driver). The
@ -3220,7 +3208,7 @@ END
Aborting the configuration process, to ensure you take notice of the issue.
You can download and install GNU coreutils to get an 'rm' implementation
that behaves properly: <http://www.gnu.org/software/coreutils/>.
that behaves properly: <https://www.gnu.org/software/coreutils/>.
If you want to complete the configuration process using your problematic
'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
@ -3235,45 +3223,45 @@ DEPDIR="${am__leading_dot}deps"
ac_config_commands="$ac_config_commands depfiles"
am_make=${MAKE-make}
cat > confinc << 'END'
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
$as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
cat > confinc.mk << 'END'
am__doit:
@echo this is the am__doit target
@echo this is the am__doit target >confinc.out
.PHONY: am__doit
END
# If we don't find an include directive, just comment out the code.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
$as_echo_n "checking for style of include used by $am_make... " >&6; }
am__include="#"
am__quote=
_am_result=none
# First try GNU make style include.
echo "include confinc" > confmf
# Ignore all kinds of additional output from 'make'.
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
am__include=include
am__quote=
_am_result=GNU
;;
esac
# Now try BSD make style include.
if test "$am__include" = "#"; then
echo '.include "confinc"' > confmf
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
am__include=.include
am__quote="\""
_am_result=BSD
# BSD make does it like this.
echo '.include "confinc.mk" # ignored' > confmf.BSD
# Other make implementations (GNU, Solaris 10, AIX) do it like this.
echo 'include confinc.mk # ignored' > confmf.GNU
_am_result=no
for s in GNU BSD; do
{ echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
(${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }
case $?:`cat confinc.out 2>/dev/null` in #(
'0:this is the am__doit target') :
case $s in #(
BSD) :
am__include='.include' am__quote='"' ;; #(
*) :
am__include='include' am__quote='' ;;
esac ;; #(
*) :
;;
esac
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
$as_echo "$_am_result" >&6; }
rm -f confinc confmf
esac
if test "$am__include" != "#"; then
_am_result="yes ($s style)"
break
fi
done
rm -f confinc.* confmf.*
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
$as_echo "${_am_result}" >&6; }
# Check whether --enable-dependency-tracking was given.
if test "${enable_dependency_tracking+set}" = set; then :
@ -7064,7 +7052,7 @@ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
lt_cv_deplibs_check_method=pass_all
;;
netbsd* | netbsdelf*-gnu)
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
else
@ -10766,9 +10754,6 @@ $as_echo_n "checking whether the $compiler linker ($LD) supports shared librarie
openbsd* | bitrig*)
with_gnu_ld=no
;;
linux* | k*bsd*-gnu | gnu*)
link_all_deplibs=no
;;
esac
ld_shlibs=yes
@ -11023,7 +11008,7 @@ _LT_EOF
fi
;;
netbsd* | netbsdelf*-gnu)
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
wlarc=
@ -11693,7 +11678,6 @@ $as_echo "$lt_cv_irix_exported_symbol" >&6; }
if test yes = "$lt_cv_irix_exported_symbol"; then
archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
fi
link_all_deplibs=no
else
archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
@ -11715,7 +11699,7 @@ $as_echo "$lt_cv_irix_exported_symbol" >&6; }
esac
;;
netbsd* | netbsdelf*-gnu)
netbsd*)
if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
else
@ -12810,6 +12794,9 @@ fi
# before this can be enabled.
hardcode_into_libs=yes
# Add ABI-specific directories to the system library path.
sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
# Ideally, we could use ldconfig to report *all* directores which are
# searched for libraries, however this is still not possible. Aside from not
# being certain /sbin/ldconfig is available, command
@ -12818,7 +12805,7 @@ fi
# appending ld.so.conf contents (and includes) to the search path.
if test -f /etc/ld.so.conf; then
lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
fi
# We used to test for /lib/ld.so.1 and disable shared libraries on
@ -12830,18 +12817,6 @@ fi
dynamic_linker='GNU/Linux ld.so'
;;
netbsdelf*-gnu)
version_type=linux
need_lib_prefix=no
need_version=no
library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
soname_spec='${libname}${release}${shared_ext}$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
dynamic_linker='NetBSD ld.elf_so'
;;
netbsd*)
version_type=sunos
need_lib_prefix=no
@ -15736,7 +15711,7 @@ lt_prog_compiler_static_CXX=
;;
esac
;;
netbsd* | netbsdelf*-gnu)
netbsd*)
;;
*qnx* | *nto*)
# QNX uses GNU C++, but need to define -shared option too, otherwise
@ -16111,9 +16086,6 @@ $as_echo_n "checking whether the $compiler linker ($LD) supports shared librarie
;;
esac
;;
linux* | k*bsd*-gnu | gnu*)
link_all_deplibs_CXX=no
;;
*)
export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
;;
@ -16787,6 +16759,9 @@ fi
# before this can be enabled.
hardcode_into_libs=yes
# Add ABI-specific directories to the system library path.
sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
# Ideally, we could use ldconfig to report *all* directores which are
# searched for libraries, however this is still not possible. Aside from not
# being certain /sbin/ldconfig is available, command
@ -16795,7 +16770,7 @@ fi
# appending ld.so.conf contents (and includes) to the search path.
if test -f /etc/ld.so.conf; then
lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
fi
# We used to test for /lib/ld.so.1 and disable shared libraries on
@ -16807,18 +16782,6 @@ fi
dynamic_linker='GNU/Linux ld.so'
;;
netbsdelf*-gnu)
version_type=linux
need_lib_prefix=no
need_version=no
library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
soname_spec='${libname}${release}${shared_ext}$major'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
hardcode_into_libs=yes
dynamic_linker='NetBSD ld.elf_so'
;;
netbsd*)
version_type=sunos
need_lib_prefix=no
@ -17428,10 +17391,12 @@ fi
# (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 starting with a "-" are
# C compiler flags, and other 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.
# 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"
@ -17507,39 +17472,10 @@ rm -f conftest*
# 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,pthread pthread $ax_pthread_flags"
ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags"
;;
esac
# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
if test "x$GCC" = "xyes"; then :
ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"
fi
# 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 $host_os in
darwin* | hpux* | linux* | osf* | solaris*)
ax_pthread_check_macro="_REENTRANT"
;;
aix*)
ax_pthread_check_macro="_THREAD_SAFE"
;;
*)
ax_pthread_check_macro="--"
;;
esac
if test "x$ax_pthread_check_macro" = "x--"; then :
ax_pthread_check_cond=0
else
ax_pthread_check_cond="!defined($ax_pthread_check_macro)"
fi
# Are we compiling with Clang?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5
@ -17571,107 +17507,51 @@ fi
$as_echo "$ax_cv_PTHREAD_CLANG" >&6; }
ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
ax_pthread_clang_warning=no
# Clang needs special handling, because older versions handle the -pthread
# option in a rather... idiosyncratic way
# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
if test "x$ax_pthread_clang" = "xyes"; then
# 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
# Clang takes -pthread; it has never supported any other flag
if test "x$GCC" = "xyes"; then :
ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"
fi
# (Note 1: This will need to be revisited if a system that Clang
# supports has POSIX threads in a separate library. This tends not
# to be the way of modern systems, but it's conceivable.)
# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first
# (Note 2: On some systems, notably Darwin, -pthread is not needed
# to get POSIX threads support; the API is always present and
# active. We could reasonably leave PTHREAD_CFLAGS empty. But
# -pthread does define _REENTRANT, and while the Darwin headers
# ignore this macro, third-party headers might not.)
if test "x$ax_pthread_clang" = "xyes"; then :
ax_pthread_flags="-pthread,-lpthread -pthread"
fi
PTHREAD_CFLAGS="-pthread"
PTHREAD_LIBS=
ax_pthread_ok=yes
# 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
# 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.
case $host_os in
darwin* | hpux* | linux* | osf* | solaris*)
ax_pthread_check_macro="_REENTRANT"
;;
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5
$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; }
if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then :
$as_echo_n "(cached) " >&6
aix*)
ax_pthread_check_macro="_THREAD_SAFE"
;;
*)
ax_pthread_check_macro="--"
;;
esac
if test "x$ax_pthread_check_macro" = "x--"; then :
ax_pthread_check_cond=0
else
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="$CFLAGS"
for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
if test "x$ax_pthread_try" = "xunknown"; then :
break
ax_pthread_check_cond="!defined($ax_pthread_check_macro)"
fi
CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
ac_link="$ax_pthread_save_ac_link"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int main(void){return 0;}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_link="$ax_pthread_2step_ac_link"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int main(void){return 0;}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
break
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
done
ac_link="$ax_pthread_save_ac_link"
CFLAGS="$ax_pthread_save_CFLAGS"
if test "x$ax_pthread_try" = "x"; then :
ax_pthread_try=no
fi
ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5
$as_echo "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; }
case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
no | unknown) ;;
*) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
esac
fi # $ax_pthread_clang = yes
if test "x$ax_pthread_ok" = "xno"; then
for ax_pthread_try_flag in $ax_pthread_flags; do
@ -17682,11 +17562,11 @@ for ax_pthread_try_flag in $ax_pthread_flags; do
$as_echo_n "checking whether pthreads work without any flags... " >&6; }
;;
-mt,pthread)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with -mt -lpthread" >&5
$as_echo_n "checking whether pthreads work with -mt -lpthread... " >&6; }
PTHREAD_CFLAGS="-mt"
PTHREAD_LIBS="-lpthread"
*,*)
PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"`
PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with \"$PTHREAD_CFLAGS\" and \"$PTHREAD_LIBS\"" >&5
$as_echo_n "checking whether pthreads work with \"$PTHREAD_CFLAGS\" and \"$PTHREAD_LIBS\"... " >&6; }
;;
-*)
@ -17769,7 +17649,13 @@ $as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; }
# if $ax_pthread_check_cond
# error "$ax_pthread_check_macro must be defined"
# endif
static void routine(void *a) { a = 0; }
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; }
int
main ()
@ -17804,6 +17690,104 @@ fi
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.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5
$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; }
if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then :
$as_echo_n "(cached) " >&6
else
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="$CFLAGS"
for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
if test "x$ax_pthread_try" = "xunknown"; then :
break
fi
CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
ac_link="$ax_pthread_save_ac_link"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int main(void){return 0;}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
ac_link="$ax_pthread_2step_ac_link"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int main(void){return 0;}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
break
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
done
ac_link="$ax_pthread_save_ac_link"
CFLAGS="$ax_pthread_save_CFLAGS"
if test "x$ax_pthread_try" = "x"; then :
ax_pthread_try=no
fi
ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5
$as_echo "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; }
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="$CFLAGS"
@ -17885,6 +17869,7 @@ int
main ()
{
int i = PTHREAD_PRIO_INHERIT;
return i;
;
return 0;
}
@ -22103,7 +22088,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
#
# INIT-COMMANDS
#
AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
# The HP-UX ksh and POSIX shell print the target directory to stdout
@ -23100,29 +23085,35 @@ $as_echo "$as_me: executing $ac_file commands" >&6;}
# Older Autoconf quotes --file arguments for eval, but not when files
# are listed without --file. Let's play safe and only enable the eval
# if we detect the quoting.
case $CONFIG_FILES in
*\'*) eval set x "$CONFIG_FILES" ;;
*) set x $CONFIG_FILES ;;
esac
# TODO: see whether this extra hack can be removed once we start
# requiring Autoconf 2.70 or later.
case $CONFIG_FILES in #(
*\'*) :
eval set x "$CONFIG_FILES" ;; #(
*) :
set x $CONFIG_FILES ;; #(
*) :
;;
esac
shift
for mf
# Used to flag and report bootstrapping failures.
am_rc=0
for am_mf
do
# Strip MF so we end up with the name of the file.
mf=`echo "$mf" | sed -e 's/:.*$//'`
# Check whether this is an Automake generated Makefile or not.
# We used to match only the files named 'Makefile.in', but
# some people rename them; so instead we look at the file content.
# Grep'ing the first line is not enough: some people post-process
# each Makefile.in and add a new line on top of each file to say so.
# Grep'ing the whole file is not good either: AIX grep has a line
am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
# Check whether this is an Automake generated Makefile which includes
# dependency-tracking related rules and includes.
# Grep'ing the whole file directly is not great: AIX grep has a line
# limit of 2048, but all sed's we know have understand at least 4000.
if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
dirpart=`$as_dirname -- "$mf" ||
$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$mf" : 'X\(//\)[^/]' \| \
X"$mf" : 'X\(//\)$' \| \
X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$mf" |
sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
|| continue
am_dirpart=`$as_dirname -- "$am_mf" ||
$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$am_mf" : 'X\(//\)[^/]' \| \
X"$am_mf" : 'X\(//\)$' \| \
X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$am_mf" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
s//\1/
q
@ -23140,53 +23131,48 @@ $as_echo X"$mf" |
q
}
s/.*/./; q'`
else
continue
fi
# Extract the definition of DEPDIR, am__include, and am__quote
# from the Makefile without running 'make'.
DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
test -z "$DEPDIR" && continue
am__include=`sed -n 's/^am__include = //p' < "$mf"`
test -z "$am__include" && continue
am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
# Find all dependency output files, they are included files with
# $(DEPDIR) in their names. We invoke sed twice because it is the
# simplest approach to changing $(DEPDIR) to its actual value in the
# expansion.
for file in `sed -n "
s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
# Make sure the directory exists.
test -f "$dirpart/$file" && continue
fdir=`$as_dirname -- "$file" ||
$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$file" : 'X\(//\)[^/]' \| \
X"$file" : 'X\(//\)$' \| \
X"$file" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$file" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
am_filepart=`$as_basename -- "$am_mf" ||
$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
X"$am_mf" : 'X\(//\)$' \| \
X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$am_mf" |
sed '/^.*\/\([^/][^/]*\)\/*$/{
s//\1/
q
}
/^X\(\/\/\)[^/].*/{
/^X\/\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\).*/{
/^X\/\(\/\).*/{
s//\1/
q
}
s/.*/./; q'`
as_dir=$dirpart/$fdir; as_fn_mkdir_p
# echo "creating $dirpart/$file"
echo '# dummy' > "$dirpart/$file"
done
{ echo "$as_me:$LINENO: cd "$am_dirpart" \
&& sed -e '/# am--include-marker/d' "$am_filepart" \
| $MAKE -f - am--depfiles" >&5
(cd "$am_dirpart" \
&& sed -e '/# am--include-marker/d' "$am_filepart" \
| $MAKE -f - am--depfiles) >&5 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } || am_rc=$?
done
if test $am_rc -ne 0; then
{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "Something went wrong bootstrapping makefile fragments
for automatic dependency tracking. Try re-running configure with the
'--disable-dependency-tracking' option to at least be able to build
the package (albeit without support for automatic dependency tracking).
See \`config.log' for more details" "$LINENO" 5; }
fi
{ am_dirpart=; unset am_dirpart;}
{ am_filepart=; unset am_filepart;}
{ am_mf=; unset am_mf;}
{ am_rc=; unset am_rc;}
rm -f conftest-deps.mk
}
;;
"libtool":C)
@ -23204,6 +23190,7 @@ $as_echo X"$file" |
cat <<_LT_EOF >> "$cfgfile"
#! $SHELL
# Generated automatically by $as_me ($PACKAGE) $VERSION
# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
# Provide generalized library-building support services.