PTHREAD_CFLAGS_ONLY
PTHREAD_CFLAGS
PTHREAD_LIBS
+PTHREAD_CXX
PTHREAD_CC
ax_pthread_config
ASYNCLOOK_ALLOCCHECK_EXTRA_OBJ
if test x_$withval != x_no; then
+
+
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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 True64 or Sequent).
+# 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"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
- save_CFLAGS="$CFLAGS"
+if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
+ ax_pthread_save_CC="$CC"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ if test "x$PTHREAD_CC" != "x"
+then :
+ CC="$PTHREAD_CC"
+fi
+ if test "x$PTHREAD_CXX" != "x"
+then :
+ CXX="$PTHREAD_CXX"
+fi
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
- save_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5
-printf %s "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... " >&6; }
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5
+printf %s "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
conftest$ac_exeext conftest.$ac_ext
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
printf "%s\n" "$ax_pthread_ok" >&6; }
- if test x"$ax_pthread_ok" = xno; then
+ if test "x$ax_pthread_ok" = "xno"; then
PTHREAD_LIBS=""
PTHREAD_CFLAGS=""
fi
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
+ 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
# (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 -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+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:
# 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)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
+# -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 too;
-# also defines -D_REENTRANT)
-# ... -mt is also the pthreads flag for HP/aCC
+# 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
+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 $ax_pthread_flags"
+ ;;
+
+ openedition*)
+
+ # IBM z/OS requires a feature-test macro to be defined in order to
+ # enable POSIX threads at all, so give the user a hint if this is
+ # not set. (We don't define these ourselves, as they can affect
+ # other portions of the system API in unpredictable ways.)
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+ AX_PTHREAD_ZOS_MISSING
+# endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1
+then :
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5
+printf "%s\n" "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;}
+fi
+rm -rf conftest*
+
+ ;;
+
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. (We need to link with -pthreads/-mt/
- # -lpthread.) (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 just look for -pthreads and -lpthread first:
-
- ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
- ;;
+ # 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).
- darwin*)
- ax_pthread_flags="-pthread $ax_pthread_flags"
+ ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags"
;;
esac
-# Clang doesn't consider unrecognized options an error unless we specify
-# -Werror. We throw in some extra Clang-specific options to ensure that
-# this doesn't happen for GCC, which also accepts -Werror.
+# Are we compiling with Clang?
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if compiler needs -Werror to reject unknown flags" >&5
-printf %s "checking if compiler needs -Werror to reject unknown flags... " >&6; }
-save_CFLAGS="$CFLAGS"
-ax_pthread_extra_flags="-Werror"
-CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5
+printf %s "checking whether $CC is Clang... " >&6; }
+if test ${ax_cv_PTHREAD_CLANG+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ ax_cv_PTHREAD_CLANG=no
+ # Note that Autoconf sets GCC=yes for Clang as well as GCC
+ if test "x$GCC" = "xyes"; then
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-int foo(void);
-int
-main (void)
-{
-foo()
- ;
- return 0;
-}
+/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
+# if defined(__clang__) && defined(__llvm__)
+ AX_PTHREAD_CC_IS_CLANG
+# endif
+
_ACEOF
-if ac_fn_c_try_compile "$LINENO"
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1
then :
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+ ax_cv_PTHREAD_CLANG=yes
+fi
+rm -rf conftest*
+
+ fi
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5
+printf "%s\n" "$ax_cv_PTHREAD_CLANG" >&6; }
+ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
+
+
+# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
+
+# Note that for GCC and Clang -pthread generally implies -lpthread,
+# except when -nostdlib is passed.
+# This is problematic using libtool to build C++ shared libraries with pthread:
+# [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460
+# [2] https://bugzilla.redhat.com/show_bug.cgi?id=661333
+# [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468555
+# To solve this, first try -pthread together with -lpthread for GCC
+
+if test "x$GCC" = "xyes"
+then :
+ ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"
+fi
+
+# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first
+
+if test "x$ax_pthread_clang" = "xyes"
+then :
+ ax_pthread_flags="-pthread,-lpthread -pthread"
+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 $as_nop
- ax_pthread_extra_flags=
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
-printf "%s\n" "no" >&6; }
+ ax_pthread_check_cond="!defined($ax_pthread_check_macro)"
fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-CFLAGS="$save_CFLAGS"
-if test x"$ax_pthread_ok" = xno; then
-for flag in $ax_pthread_flags; do
- case $flag in
+if test "x$ax_pthread_ok" = "xno"; then
+for ax_pthread_try_flag in $ax_pthread_flags; do
+
+ case $ax_pthread_try_flag in
none)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
printf %s "checking whether pthreads work without any flags... " >&6; }
;;
+ *,*)
+ PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"`
+ PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"`
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with \"$PTHREAD_CFLAGS\" and \"$PTHREAD_LIBS\"" >&5
+printf %s "checking whether pthreads work with \"$PTHREAD_CFLAGS\" and \"$PTHREAD_LIBS\"... " >&6; }
+ ;;
+
-*)
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5
-printf %s "checking whether pthreads work with $flag... " >&6; }
- PTHREAD_CFLAGS="$flag"
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $ax_pthread_try_flag" >&5
+printf %s "checking whether pthreads work with $ax_pthread_try_flag... " >&6; }
+ PTHREAD_CFLAGS="$ax_pthread_try_flag"
;;
pthread-config)
fi
- if test x"$ax_pthread_config" = xno; then continue; fi
+ if test "x$ax_pthread_config" = "xno"
+then :
+ continue
+fi
PTHREAD_CFLAGS="`pthread-config --cflags`"
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
;;
*)
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$flag" >&5
-printf %s "checking for the pthreads library -l$flag... " >&6; }
- PTHREAD_LIBS="-l$flag"
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5
+printf %s "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; }
+ PTHREAD_LIBS="-l$ax_pthread_try_flag"
;;
esac
- save_LIBS="$LIBS"
- save_CFLAGS="$CFLAGS"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
LIBS="$PTHREAD_LIBS $LIBS"
- CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
# Check for various functions. We must include pthread.h,
# since some functions may be macros. (On the Sequent, we
# pthread_cleanup_push because it is one of the few pthread
# functions on Solaris that doesn't have a non-functional libc stub.
# We try pthread_create on general principles.
+
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <pthread.h>
- static void routine(void *a) { *((int*)a) = 0; }
+# 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; }
int
main (void)
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
printf "%s\n" "$ax_pthread_ok" >&6; }
- if test "x$ax_pthread_ok" = xyes; then
- break;
- fi
+ if test "x$ax_pthread_ok" = "xyes"
+then :
+ break
+fi
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$ax_pthread_clang" = "xyes"; then
+
+ # Clang takes -pthread; it has never supported any other flag
+
+ # (Note 1: This will need to be revisited if a system that Clang
+ # supports has POSIX threads in a separate library. This tends not
+ # to be the way of modern systems, but it's conceivable.)
+
+ # (Note 2: On some systems, notably Darwin, -pthread is not needed
+ # to get POSIX threads support; the API is always present and
+ # active. We could reasonably leave PTHREAD_CFLAGS empty. But
+ # -pthread does define _REENTRANT, and while the Darwin headers
+ # ignore this macro, third-party headers might not.)
+
+ # However, older versions of Clang make a point of warning the user
+ # that, in an invocation where only linking and no compilation is
+ # taking place, the -pthread option has no effect ("argument unused
+ # during compilation"). They expect -pthread to be passed in only
+ # when source code is being compiled.
+ #
+ # Problem is, this is at odds with the way Automake and most other
+ # C build frameworks function, which is that the same flags used in
+ # compilation (CFLAGS) are also used in linking. Many systems
+ # supported by AX_PTHREAD require exactly this for POSIX threads
+ # support, and in fact it is often not straightforward to specify a
+ # flag that is used only in the compilation phase and not in
+ # linking. Such a scenario is extremely rare in practice.
+ #
+ # Even though use of the -pthread flag in linking would only print
+ # a warning, this can be a nuisance for well-run software projects
+ # that build with -Werror. So if the active version of Clang has
+ # this misfeature, we search for an option to squash it.
+
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5
+printf %s "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; }
+if test ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ 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.$ac_objext/g'
+ ax_pthread_link_step=`printf "%s\n" "$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.beam \
+ conftest$ac_exeext conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+ conftest$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="$ax_pthread_try"
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5
+printf "%s\n" "$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
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- save_CFLAGS="$CFLAGS"
+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 $LIBS"
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
printf %s "checking for joinable pthread attribute... " >&6; }
- attr_name=unknown
- for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+if test ${ax_cv_PTHREAD_JOINABLE_ATTR+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+ for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <pthread.h>
int
main (void)
{
-int attr = $attr; return attr /* ; */
+int attr = $ax_pthread_attr; return attr /* ; */
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
- attr_name=$attr; break
+ ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext
- done
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5
-printf "%s\n" "$attr_name" >&6; }
- if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+ done
-printf "%s\n" "#define PTHREAD_CREATE_JOINABLE $attr_name" >>confdefs.h
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5
+printf "%s\n" "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; }
+ 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"
+then :
- fi
+printf "%s\n" "#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR" >>confdefs.h
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5
-printf %s "checking if more special flags are required for pthreads... " >&6; }
- flag=no
- case ${host_os} in
- aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
- osf* | hpux*) flag="-D_REENTRANT";;
- solaris*)
- if test "$GCC" = "yes"; then
- flag="-D_REENTRANT"
- else
- # TODO: What about Clang on Solaris?
- flag="-mt -D_REENTRANT"
- fi
- ;;
- esac
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $flag" >&5
-printf "%s\n" "$flag" >&6; }
- if test "x$flag" != xno; then
- PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
- fi
+ ax_pthread_joinable_attr_defined=yes
+
+fi
+
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5
+printf %s "checking whether more special flags are required for pthreads... " >&6; }
+if test ${ax_cv_PTHREAD_SPECIAL_FLAGS+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ ax_cv_PTHREAD_SPECIAL_FLAGS=no
+ case $host_os in
+ solaris*)
+ ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
+ ;;
+ esac
+
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5
+printf "%s\n" "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; }
+ if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+ test "x$ax_pthread_special_flags_added" != "xyes"
+then :
+ PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+ ax_pthread_special_flags_added=yes
+fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5
printf %s "checking for PTHREAD_PRIO_INHERIT... " >&6; }
then :
printf %s "(cached) " >&6
else $as_nop
-
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <pthread.h>
int
main (void)
{
int i = PTHREAD_PRIO_INHERIT;
+ return i;
;
return 0;
}
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5
printf "%s\n" "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; }
- if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"
+ if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
+ test "x$ax_pthread_prio_inherit_defined" != "xyes"
then :
printf "%s\n" "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h
+ ax_pthread_prio_inherit_defined=yes
+
fi
- LIBS="$save_LIBS"
- CFLAGS="$save_CFLAGS"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
# More AIX lossage: compile with *_r variant
- if test "x$GCC" != xyes; then
+ if test "x$GCC" != "xyes"; then
case $host_os in
aix*)
case "x/$CC" in #(
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
- case "x$CC" in #(
+ case "x$CC" in #(
x/*) :
- if as_fn_executable_p ${CC}_r
+
+ if as_fn_executable_p ${CC}_r
then :
PTHREAD_CC="${CC}_r"
-fi ;; #(
+fi
+ if test "x${CXX}" != "x"
+then :
+ if as_fn_executable_p ${CXX}_r
+then :
+ PTHREAD_CXX="${CXX}_r"
+fi
+fi
+ ;; #(
*) :
- for ac_prog in ${CC}_r
+
+ for ac_prog in ${CC}_r
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
test -n "$PTHREAD_CC" && break
done
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
- ;;
-esac ;; #(
+
+ if test "x${CXX}" != "x"
+then :
+ for ac_prog in ${CXX}_r
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_prog_PTHREAD_CXX+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ if test -n "$PTHREAD_CXX"; then
+ ac_cv_prog_PTHREAD_CXX="$PTHREAD_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ case $as_dir in #(((
+ '') as_dir=./ ;;
+ */) ;;
+ *) as_dir=$as_dir/ ;;
+ esac
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+ ac_cv_prog_PTHREAD_CXX="$ac_prog"
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+PTHREAD_CXX=$ac_cv_prog_PTHREAD_CXX
+if test -n "$PTHREAD_CXX"; then
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CXX" >&5
+printf "%s\n" "$PTHREAD_CXX" >&6; }
+else
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
+fi
+
+
+ test -n "$PTHREAD_CXX" && break
+done
+test -n "$PTHREAD_CXX" || PTHREAD_CXX="$CXX"
+
+fi
+
+ ;;
+esac
+ ;; #(
*) :
;;
esac
fi
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
+test -n "$PTHREAD_CXX" || PTHREAD_CXX="$CXX"
+
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$ax_pthread_ok" = xyes; then
+if test "x$ax_pthread_ok" = "xyes"; then
printf "%s\n" "#define HAVE_PTHREAD 1" >>confdefs.h
if test "$enable_swig_version_check" = "yes"; then
- # Extract the first word of "swig", so it can be a program name with args.
-set dummy swig; ac_word=$2
+ # Find path to the "swig" executable.
+ for ac_prog in swig swig3.0 swig2.0
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_path_SWIG+y}
fi
+ test -n "$SWIG" && break
+done
+
if test -z "$SWIG" ; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find 'swig' program. You should look at http://www.swig.org" >&5
-printf "%s\n" "$as_me: WARNING: cannot find 'swig' program. You should look at http://www.swig.org" >&2;}
- SWIG='echo "Error: SWIG is not installed. You should look at http://www.swig.org" ; false'
- elif test -n "2.0.1" ; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SWIG version" >&5
-printf %s "checking for SWIG version... " >&6; }
+ :
+ elif test -z "2.0.1" ; then
+ :
+ else
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking SWIG version" >&5
+printf %s "checking SWIG version... " >&6; }
swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $swig_version" >&5
printf "%s\n" "$swig_version" >&6; }
if test -z "$required_major" ; then
required_major=0
fi
- required=`echo $required | sed 's/[0-9]*[^0-9]//'`
+ required=`echo $required. | sed 's/[0-9]*[^0-9]//'`
required_minor=`echo $required | sed 's/[^0-9].*//'`
if test -z "$required_minor" ; then
required_minor=0
fi
- required=`echo $required | sed 's/[0-9]*[^0-9]//'`
+ required=`echo $required. | sed 's/[0-9]*[^0-9]//'`
required_patch=`echo $required | sed 's/[^0-9].*//'`
if test -z "$required_patch" ; then
required_patch=0
if test -z "$available_patch" ; then
available_patch=0
fi
- badversion=0
- if test $available_major -lt $required_major ; then
- badversion=1
- fi
- if test $available_major -eq $required_major \
- -a $available_minor -lt $required_minor ; then
- badversion=1
- fi
- if test $available_major -eq $required_major \
- -a $available_minor -eq $required_minor \
- -a $available_patch -lt $required_patch ; then
- badversion=1
- fi
- if test $badversion -eq 1 ; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: SWIG version >= 2.0.1 is required. You have $swig_version. You should look at http://www.swig.org" >&5
-printf "%s\n" "$as_me: WARNING: SWIG version >= 2.0.1 is required. You have $swig_version. You should look at http://www.swig.org" >&2;}
- SWIG='echo "Error: SWIG version >= 2.0.1 is required. You have '"$swig_version"'. You should look at http://www.swig.org" ; false'
+ # Convert the version tuple into a single number for easier comparison.
+ # Using base 100 should be safe since SWIG internally uses BCD values
+ # to encode its version number.
+ required_swig_vernum=`expr $required_major \* 10000 \
+ \+ $required_minor \* 100 \+ $required_patch`
+ available_swig_vernum=`expr $available_major \* 10000 \
+ \+ $available_minor \* 100 \+ $available_patch`
+
+ if test $available_swig_vernum -lt $required_swig_vernum; then
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: SWIG version >= 2.0.1 is required. You have $swig_version." >&5
+printf "%s\n" "$as_me: WARNING: SWIG version >= 2.0.1 is required. You have $swig_version." >&2;}
+ SWIG=''
+
else
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: SWIG executable is '$SWIG'" >&5
-printf "%s\n" "$as_me: SWIG executable is '$SWIG'" >&6;}
- SWIG_LIB=`$SWIG -swiglib`
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: SWIG library directory is '$SWIG_LIB'" >&5
-printf "%s\n" "$as_me: SWIG library directory is '$SWIG_LIB'" >&6;}
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SWIG library" >&5
+printf %s "checking for SWIG library... " >&6; }
+ SWIG_LIB=`$SWIG -swiglib | tr '\r\n' ' '`
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SWIG_LIB" >&5
+printf "%s\n" "$SWIG_LIB" >&6; }
+
fi
else
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot determine SWIG version" >&5
printf "%s\n" "$as_me: WARNING: cannot determine SWIG version" >&2;}
- SWIG='echo "Error: Cannot determine SWIG version. You should look at http://www.swig.org" ; false'
+ SWIG=''
+
fi
fi
else
- # Extract the first word of "swig", so it can be a program name with args.
-set dummy swig; ac_word=$2
+ # Find path to the "swig" executable.
+ for ac_prog in swig swig3.0 swig2.0
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
printf %s "checking for $ac_word... " >&6; }
if test ${ac_cv_path_SWIG+y}
fi
+ test -n "$SWIG" && break
+done
+
if test -z "$SWIG" ; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find 'swig' program. You should look at http://www.swig.org" >&5
-printf "%s\n" "$as_me: WARNING: cannot find 'swig' program. You should look at http://www.swig.org" >&2;}
- SWIG='echo "Error: SWIG is not installed. You should look at http://www.swig.org" ; false'
- elif test -n "" ; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SWIG version" >&5
-printf %s "checking for SWIG version... " >&6; }
+ :
+ elif test -z "" ; then
+ :
+ else
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking SWIG version" >&5
+printf %s "checking SWIG version... " >&6; }
swig_version=`$SWIG -version 2>&1 | grep 'SWIG Version' | sed 's/.*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*/\1/g'`
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $swig_version" >&5
printf "%s\n" "$swig_version" >&6; }
if test -z "$required_major" ; then
required_major=0
fi
- required=`echo $required | sed 's/[0-9]*[^0-9]//'`
+ required=`echo $required. | sed 's/[0-9]*[^0-9]//'`
required_minor=`echo $required | sed 's/[^0-9].*//'`
if test -z "$required_minor" ; then
required_minor=0
fi
- required=`echo $required | sed 's/[0-9]*[^0-9]//'`
+ required=`echo $required. | sed 's/[0-9]*[^0-9]//'`
required_patch=`echo $required | sed 's/[^0-9].*//'`
if test -z "$required_patch" ; then
required_patch=0
if test -z "$available_patch" ; then
available_patch=0
fi
- badversion=0
- if test $available_major -lt $required_major ; then
- badversion=1
- fi
- if test $available_major -eq $required_major \
- -a $available_minor -lt $required_minor ; then
- badversion=1
- fi
- if test $available_major -eq $required_major \
- -a $available_minor -eq $required_minor \
- -a $available_patch -lt $required_patch ; then
- badversion=1
- fi
- if test $badversion -eq 1 ; then
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: SWIG version >= is required. You have $swig_version. You should look at http://www.swig.org" >&5
-printf "%s\n" "$as_me: WARNING: SWIG version >= is required. You have $swig_version. You should look at http://www.swig.org" >&2;}
- SWIG='echo "Error: SWIG version >= is required. You have '"$swig_version"'. You should look at http://www.swig.org" ; false'
+ # Convert the version tuple into a single number for easier comparison.
+ # Using base 100 should be safe since SWIG internally uses BCD values
+ # to encode its version number.
+ required_swig_vernum=`expr $required_major \* 10000 \
+ \+ $required_minor \* 100 \+ $required_patch`
+ available_swig_vernum=`expr $available_major \* 10000 \
+ \+ $available_minor \* 100 \+ $available_patch`
+
+ if test $available_swig_vernum -lt $required_swig_vernum; then
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: SWIG version >= is required. You have $swig_version." >&5
+printf "%s\n" "$as_me: WARNING: SWIG version >= is required. You have $swig_version." >&2;}
+ SWIG=''
+
else
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: SWIG executable is '$SWIG'" >&5
-printf "%s\n" "$as_me: SWIG executable is '$SWIG'" >&6;}
- SWIG_LIB=`$SWIG -swiglib`
- { printf "%s\n" "$as_me:${as_lineno-$LINENO}: SWIG library directory is '$SWIG_LIB'" >&5
-printf "%s\n" "$as_me: SWIG library directory is '$SWIG_LIB'" >&6;}
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SWIG library" >&5
+printf %s "checking for SWIG library... " >&6; }
+ SWIG_LIB=`$SWIG -swiglib | tr '\r\n' ' '`
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SWIG_LIB" >&5
+printf "%s\n" "$SWIG_LIB" >&6; }
+
fi
else
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot determine SWIG version" >&5
printf "%s\n" "$as_me: WARNING: cannot determine SWIG version" >&2;}
- SWIG='echo "Error: Cannot determine SWIG version. You should look at http://www.swig.org" ; false'
+ SWIG=''
+
fi
fi
projects / thirdparty / unbound.git / commitdiff
