Max Lv
12 years ago
9 changed files with 610 additions and 17 deletions
Unified View
Diff Options
-
13Makefile.in
-
1aclocal.m4
-
7config.h.in
-
363configure
-
2configure.ac
-
16libasyncns/Makefile.in
-
13libev/Makefile.in
-
199m4/acx_pthread.m4
-
13src/Makefile.in
@ -0,0 +1,199 @@ |
|||||
|
dnl Available from the GNU Autoconf Macro Archive at: |
||||
|
dnl http://www.gnu.org/software/ac-archive/htmldoc/acx_pthread.html |
||||
|
dnl |
||||
|
AC_DEFUN([ACX_PTHREAD], [ |
||||
|
AC_REQUIRE([AC_CANONICAL_HOST]) |
||||
|
AC_LANG_SAVE |
||||
|
AC_LANG_C |
||||
|
acx_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). |
||||
|
# 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="$CFLAGS" |
||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS" |
||||
|
save_LIBS="$LIBS" |
||||
|
LIBS="$PTHREAD_LIBS $LIBS" |
||||
|
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) |
||||
|
AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes) |
||||
|
AC_MSG_RESULT($acx_pthread_ok) |
||||
|
if test x"$acx_pthread_ok" = xno; then |
||||
|
PTHREAD_LIBS="" |
||||
|
PTHREAD_CFLAGS="" |
||||
|
fi |
||||
|
LIBS="$save_LIBS" |
||||
|
CFLAGS="$save_CFLAGS" |
||||
|
fi |
||||
|
|
||||
|
# We must check for the threads library under a number of different |
||||
|
# names; the ordering is very important because some systems |
||||
|
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the |
||||
|
# libraries is broken (non-POSIX). |
||||
|
|
||||
|
# Create a list of thread flags to try. Items starting with a "-" are |
||||
|
# C compiler flags, and other items are library names, except for "none" |
||||
|
# which indicates that we try without any flags at all, and "pthread-config" |
||||
|
# which is a program returning the flags for the Pth emulation library. |
||||
|
|
||||
|
acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" |
||||
|
|
||||
|
# The ordering *is* (sometimes) important. Some notes on the |
||||
|
# individual items follow: |
||||
|
|
||||
|
# pthreads: AIX (must check this before -lpthread) |
||||
|
# none: in case threads are in libc; should be tried before -Kthread and |
||||
|
# other compiler flags to prevent continual compiler warnings |
||||
|
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) |
||||
|
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) |
||||
|
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) |
||||
|
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) |
||||
|
# -pthreads: Solaris/gcc |
||||
|
# -mthreads: Mingw32/gcc, Lynx/gcc |
||||
|
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it |
||||
|
# doesn't hurt to check since this sometimes defines pthreads too; |
||||
|
# also defines -D_REENTRANT) |
||||
|
# pthread: Linux, etcetera |
||||
|
# --thread-safe: KAI C++ |
||||
|
# pthread-config: use pthread-config program (for GNU Pth library) |
||||
|
|
||||
|
case "${host_cpu}-${host_os}" in |
||||
|
*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 -pthread or |
||||
|
# -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: |
||||
|
|
||||
|
acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags" |
||||
|
;; |
||||
|
esac |
||||
|
|
||||
|
if test x"$acx_pthread_ok" = xno; then |
||||
|
for flag in $acx_pthread_flags; do |
||||
|
|
||||
|
case $flag in |
||||
|
none) |
||||
|
AC_MSG_CHECKING([whether pthreads work without any flags]) |
||||
|
;; |
||||
|
|
||||
|
-*) |
||||
|
AC_MSG_CHECKING([whether pthreads work with $flag]) |
||||
|
PTHREAD_CFLAGS="$flag" |
||||
|
;; |
||||
|
|
||||
|
pthread-config) |
||||
|
AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no) |
||||
|
if test x"$acx_pthread_config" = xno; then continue; fi |
||||
|
PTHREAD_CFLAGS="`pthread-config --cflags`" |
||||
|
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" |
||||
|
;; |
||||
|
|
||||
|
*) |
||||
|
AC_MSG_CHECKING([for the pthreads library -l$flag]) |
||||
|
PTHREAD_LIBS="-l$flag" |
||||
|
;; |
||||
|
esac |
||||
|
|
||||
|
save_LIBS="$LIBS" |
||||
|
save_CFLAGS="$CFLAGS" |
||||
|
LIBS="$PTHREAD_LIBS $LIBS" |
||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS" |
||||
|
|
||||
|
# Check for various functions. We must include pthread.h, |
||||
|
# since some functions may be macros. (On the Sequent, we |
||||
|
# need a special flag -Kthread to make this header compile.) |
||||
|
# We check for pthread_join because it is in -lpthread on IRIX |
||||
|
# while pthread_create is in libc. We check for pthread_attr_init |
||||
|
# due to DEC craziness with -lpthreads. We check for |
||||
|
# pthread_cleanup_push because it is one of the few pthread |
||||
|
# functions on Solaris that doesn't have a non-functional libc stub. |
||||
|
# We try pthread_create on general principles. |
||||
|
AC_TRY_LINK([#include <pthread.h>], |
||||
|
[pthread_t th; pthread_join(th, 0); |
||||
|
pthread_attr_init(0); pthread_cleanup_push(0, 0); |
||||
|
pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], |
||||
|
[acx_pthread_ok=yes]) |
||||
|
|
||||
|
LIBS="$save_LIBS" |
||||
|
CFLAGS="$save_CFLAGS" |
||||
|
|
||||
|
AC_MSG_RESULT($acx_pthread_ok) |
||||
|
if test "x$acx_pthread_ok" = xyes; then |
||||
|
break; |
||||
|
fi |
||||
|
|
||||
|
PTHREAD_LIBS="" |
||||
|
PTHREAD_CFLAGS="" |
||||
|
done |
||||
|
fi |
||||
|
|
||||
|
# Various other checks: |
||||
|
if test "x$acx_pthread_ok" = xyes; then |
||||
|
save_LIBS="$LIBS" |
||||
|
LIBS="$PTHREAD_LIBS $LIBS" |
||||
|
save_CFLAGS="$CFLAGS" |
||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS" |
||||
|
|
||||
|
# Detect AIX lossage: threads are created detached by default |
||||
|
# and the JOINABLE attribute has a nonstandard name (UNDETACHED). |
||||
|
AC_MSG_CHECKING([for joinable pthread attribute]) |
||||
|
AC_TRY_LINK([#include <pthread.h>], |
||||
|
[int attr=PTHREAD_CREATE_JOINABLE;], |
||||
|
ok=PTHREAD_CREATE_JOINABLE, ok=unknown) |
||||
|
if test x"$ok" = xunknown; then |
||||
|
AC_TRY_LINK([#include <pthread.h>], |
||||
|
[int attr=PTHREAD_CREATE_UNDETACHED;], |
||||
|
ok=PTHREAD_CREATE_UNDETACHED, ok=unknown) |
||||
|
fi |
||||
|
if test x"$ok" != xPTHREAD_CREATE_JOINABLE; then |
||||
|
AC_DEFINE(PTHREAD_CREATE_JOINABLE, $ok, |
||||
|
[Define to the necessary symbol if this constant |
||||
|
uses a non-standard name on your system.]) |
||||
|
fi |
||||
|
AC_MSG_RESULT(${ok}) |
||||
|
if test x"$ok" = xunknown; then |
||||
|
AC_MSG_WARN([we do not know how to create joinable pthreads]) |
||||
|
fi |
||||
|
|
||||
|
AC_MSG_CHECKING([if more special flags are required for pthreads]) |
||||
|
flag=no |
||||
|
case "${host_cpu}-${host_os}" in |
||||
|
*-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; |
||||
|
*solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; |
||||
|
esac |
||||
|
AC_MSG_RESULT(${flag}) |
||||
|
if test "x$flag" != xno; then |
||||
|
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" |
||||
|
fi |
||||
|
|
||||
|
LIBS="$save_LIBS" |
||||
|
CFLAGS="$save_CFLAGS" |
||||
|
|
||||
|
# More AIX lossage: must compile with cc_r |
||||
|
AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC}) |
||||
|
else |
||||
|
PTHREAD_CC="$CC" |
||||
|
fi |
||||
|
|
||||
|
AC_SUBST(PTHREAD_LIBS) |
||||
|
AC_SUBST(PTHREAD_CFLAGS) |
||||
|
AC_SUBST(PTHREAD_CC) |
||||
|
|
||||
|
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: |
||||
|
if test x"$acx_pthread_ok" = xyes; then |
||||
|
ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) |
||||
|
: |
||||
|
else |
||||
|
acx_pthread_ok=no |
||||
|
$2 |
||||
|
fi |
||||
|
AC_LANG_RESTORE |
||||
|
])dnl ACX_PTHREAD |
||||
Write
Preview
Loading…
Cancel
Save