From e29853e3a74d75e0a36cb7d2c4dae674c364c313 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 2 Sep 2010 22:17:48 +0200
Subject: Rename a file
---
m4/acx-pthread.m4 | 254 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
m4/acx_pthread.m4 | 254 ------------------------------------------------------
2 files changed, 254 insertions(+), 254 deletions(-)
create mode 100644 m4/acx-pthread.m4
delete mode 100644 m4/acx_pthread.m4
diff --git a/m4/acx-pthread.m4 b/m4/acx-pthread.m4
new file mode 100644
index 0000000..feeb01d
--- /dev/null
+++ b/m4/acx-pthread.m4
@@ -0,0 +1,254 @@
+dnl
+dnl NOTE: This file was modified. See the comments starting with 'CS:'
+dnl for more information. In particular, it was changed to use C++
+dnl instead of C.
+dnl
+dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+dnl
+dnl @summary figure out how to build C++ programs using POSIX threads
+dnl
+dnl This macro figures out how to build C++ programs using POSIX threads.
+dnl It sets the PTHREAD_LIBS output variable to the threads library and
+dnl linker flags, and the PTHREAD_CXXFLAGS output variable to any special
+dnl C++ compiler flags that are needed. (The user can also force certain
+dnl compiler flags/libs to be tested by setting these environment
+dnl variables.)
+dnl
+dnl Also sets PTHREAD_CXX to any special C++ compiler that is needed for
+dnl multi-threaded programs (defaults to the value of CXX otherwise).
+dnl (This is necessary on AIX to use the special xlC_r compiler alias.)
+dnl
+dnl NOTE: You are assumed to not only compile your program with these
+dnl flags, but also link it with them as well. e.g. you should link
+dnl with $PTHREAD_CXX $CXXFLAGS $PTHREAD_CXXFLAGS $LDFLAGS ... $PTHREAD_LIBS
+dnl $LIBS
+dnl
+dnl If you are only building threads programs, you may wish to use
+dnl these variables in your default LIBS, CXXFLAGS, and CXX:
+dnl
+dnl LIBS="$PTHREAD_LIBS $LIBS"
+dnl CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
+dnl CXX="$PTHREAD_CXX"
+dnl
+dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
+dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
+dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
+dnl
+dnl ACTION-IF-FOUND is a list of shell commands to run if a threads
+dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to
+dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the
+dnl default action will define HAVE_PTHREAD.
+dnl
+dnl Please let the authors know if this macro fails on any platform, or
+dnl if you have any other suggestions or comments. This macro was based
+dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with
+dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros
+dnl posted by Alejandro Forero Cuervo to the autoconf macro repository.
+dnl We are also grateful for the helpful feedback of numerous users.
+dnl
+dnl @category InstalledPackages
+dnl @author Steven G. Johnson <stevenj@alum.mit.edu>
+dnl @version 2006-05-29
+dnl @license GPLWithACException
+
+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_CXXFLAGS" != x; then
+ save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
+ save_LIBS="$LIBS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CXXFLAGS=$PTHREAD_CXXFLAGS])
+ AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
+ AC_MSG_RESULT($acx_pthread_ok)
+ if test x"$acx_pthread_ok" = xno; then
+ PTHREAD_LIBS=""
+ PTHREAD_CXXFLAGS=""
+ fi
+ LIBS="$save_LIBS"
+ CXXFLAGS="$save_CXXFLAGS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try. Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+# CS: On GNU/Linux with gcc both -pthread and -lpthread are valid.
+# However, libtool links libraries with -nostdlib which results in
+# -pthread being stripped from the linker command line. To resolve
+# this we move pthread from after -mthreads to after pthreads.
+#
+acx_pthread_flags="pthreads pthread none -Kthread -kthread lthread -pthread -pthreads -mthreads --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important. Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+# other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
+# -pthreads: Solaris/gcc
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+# doesn't hurt to check since this sometimes defines pthreads too;
+# also defines -D_REENTRANT)
+# ... -mt is also the pthreads flag for HP/aCC
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case "${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 -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:
+
+ acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
+ ;;
+esac
+
+if test x"$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 $flag])
+ PTHREAD_CXXFLAGS="$flag"
+ ;;
+
+ pthread-config)
+ AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
+ if test x"$acx_pthread_config" = xno; then continue; fi
+ PTHREAD_CXXFLAGS="`pthread-config --cflags`"
+ PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+ ;;
+
+ *)
+ AC_MSG_CHECKING([for the pthreads library -l$flag])
+ PTHREAD_LIBS="-l$flag"
+ ;;
+ esac
+
+ save_LIBS="$LIBS"
+ save_CXXFLAGS="$CXXFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
+
+ # Check for various functions. We must include pthread.h,
+ # since some functions may be macros. (On the Sequent, we
+ # need a special flag -Kthread to make this header compile.)
+ # We check for pthread_join because it is in -lpthread on IRIX
+ # while pthread_create is in libc. We check for pthread_attr_init
+ # due to DEC craziness with -lpthreads. We check for
+ # pthread_cleanup_push because it is one of the few pthread
+ # functions on Solaris that doesn't have a non-functional libc stub.
+ # We try pthread_create on general principles.
+ #
+ AC_TRY_LINK([#include <pthread.h>],
+ [pthread_t th; pthread_join(th, 0);
+ pthread_attr_init(0); pthread_cleanup_push(0, 0);
+ pthread_create(0,0,0,0); pthread_cleanup_pop(0);],
+ [acx_pthread_ok=yes])
+
+ LIBS="$save_LIBS"
+ CXXFLAGS="$save_CXXFLAGS"
+
+ AC_MSG_RESULT($acx_pthread_ok)
+ if test "x$acx_pthread_ok" = xyes; then
+ break;
+ fi
+
+ PTHREAD_LIBS=""
+ PTHREAD_CXXFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$acx_pthread_ok" = xyes; then
+ save_LIBS="$LIBS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
+
+dnl # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+dnl AC_MSG_CHECKING([for joinable pthread attribute])
+dnl attr_name=unknown
+dnl for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+dnl AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
+dnl [attr_name=$attr; break])
+dnl done
+dnl AC_MSG_RESULT($attr_name)
+dnl if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
+dnl AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
+dnl [Define to necessary symbol if this constant
+dnl uses a non-standard name on your system.])
+dnl fi
+
+ AC_MSG_CHECKING([if more special flags are required for pthreads])
+ flag=no
+ case "${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$flag" != xno; then
+ PTHREAD_CXXFLAGS="$flag $PTHREAD_CXXFLAGS"
+ fi
+
+ LIBS="$save_LIBS"
+ CXXFLAGS="$save_CXXFLAGS"
+
+dnl # More AIX lossage: must compile with xlC_r
+dnl if test x"$GXX" != xyes; then
+dnl AC_CHECK_PROGS(PTHREAD_CXX, xlC_r, ${CXX})
+dnl else
+dnl PTHREAD_CXX=$CXX
+dnl fi
+
+else
+ PTHREAD_CXX="$CXX"
+fi
+
+AC_SUBST(PTHREAD_LIBS)
+AC_SUBST(PTHREAD_CXXFLAGS)
+AC_SUBST(PTHREAD_CXX)
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test x"$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
diff --git a/m4/acx_pthread.m4 b/m4/acx_pthread.m4
deleted file mode 100644
index feeb01d..0000000
--- a/m4/acx_pthread.m4
+++ /dev/null
@@ -1,254 +0,0 @@
-dnl
-dnl NOTE: This file was modified. See the comments starting with 'CS:'
-dnl for more information. In particular, it was changed to use C++
-dnl instead of C.
-dnl
-dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
-dnl
-dnl @summary figure out how to build C++ programs using POSIX threads
-dnl
-dnl This macro figures out how to build C++ programs using POSIX threads.
-dnl It sets the PTHREAD_LIBS output variable to the threads library and
-dnl linker flags, and the PTHREAD_CXXFLAGS output variable to any special
-dnl C++ compiler flags that are needed. (The user can also force certain
-dnl compiler flags/libs to be tested by setting these environment
-dnl variables.)
-dnl
-dnl Also sets PTHREAD_CXX to any special C++ compiler that is needed for
-dnl multi-threaded programs (defaults to the value of CXX otherwise).
-dnl (This is necessary on AIX to use the special xlC_r compiler alias.)
-dnl
-dnl NOTE: You are assumed to not only compile your program with these
-dnl flags, but also link it with them as well. e.g. you should link
-dnl with $PTHREAD_CXX $CXXFLAGS $PTHREAD_CXXFLAGS $LDFLAGS ... $PTHREAD_LIBS
-dnl $LIBS
-dnl
-dnl If you are only building threads programs, you may wish to use
-dnl these variables in your default LIBS, CXXFLAGS, and CXX:
-dnl
-dnl LIBS="$PTHREAD_LIBS $LIBS"
-dnl CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
-dnl CXX="$PTHREAD_CXX"
-dnl
-dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute
-dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to
-dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
-dnl
-dnl ACTION-IF-FOUND is a list of shell commands to run if a threads
-dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to
-dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the
-dnl default action will define HAVE_PTHREAD.
-dnl
-dnl Please let the authors know if this macro fails on any platform, or
-dnl if you have any other suggestions or comments. This macro was based
-dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with
-dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros
-dnl posted by Alejandro Forero Cuervo to the autoconf macro repository.
-dnl We are also grateful for the helpful feedback of numerous users.
-dnl
-dnl @category InstalledPackages
-dnl @author Steven G. Johnson <stevenj@alum.mit.edu>
-dnl @version 2006-05-29
-dnl @license GPLWithACException
-
-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_CXXFLAGS" != x; then
- save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CXXFLAGS=$PTHREAD_CXXFLAGS])
- AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
- AC_MSG_RESULT($acx_pthread_ok)
- if test x"$acx_pthread_ok" = xno; then
- PTHREAD_LIBS=""
- PTHREAD_CXXFLAGS=""
- fi
- LIBS="$save_LIBS"
- CXXFLAGS="$save_CXXFLAGS"
-fi
-
-# We must check for the threads library under a number of different
-# names; the ordering is very important because some systems
-# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
-# libraries is broken (non-POSIX).
-
-# Create a list of thread flags to try. Items starting with a "-" are
-# C compiler flags, and other items are library names, except for "none"
-# which indicates that we try without any flags at all, and "pthread-config"
-# which is a program returning the flags for the Pth emulation library.
-
-# CS: On GNU/Linux with gcc both -pthread and -lpthread are valid.
-# However, libtool links libraries with -nostdlib which results in
-# -pthread being stripped from the linker command line. To resolve
-# this we move pthread from after -mthreads to after pthreads.
-#
-acx_pthread_flags="pthreads pthread none -Kthread -kthread lthread -pthread -pthreads -mthreads --thread-safe -mt pthread-config"
-
-# The ordering *is* (sometimes) important. Some notes on the
-# individual items follow:
-
-# pthreads: AIX (must check this before -lpthread)
-# none: in case threads are in libc; should be tried before -Kthread and
-# other compiler flags to prevent continual compiler warnings
-# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
-# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
-# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
-# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
-# -pthreads: Solaris/gcc
-# -mthreads: Mingw32/gcc, Lynx/gcc
-# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
-# doesn't hurt to check since this sometimes defines pthreads too;
-# also defines -D_REENTRANT)
-# ... -mt is also the pthreads flag for HP/aCC
-# pthread: Linux, etcetera
-# --thread-safe: KAI C++
-# pthread-config: use pthread-config program (for GNU Pth library)
-
-case "${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 -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:
-
- acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
- ;;
-esac
-
-if test x"$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 $flag])
- PTHREAD_CXXFLAGS="$flag"
- ;;
-
- pthread-config)
- AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
- if test x"$acx_pthread_config" = xno; then continue; fi
- PTHREAD_CXXFLAGS="`pthread-config --cflags`"
- PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
- ;;
-
- *)
- AC_MSG_CHECKING([for the pthreads library -l$flag])
- PTHREAD_LIBS="-l$flag"
- ;;
- esac
-
- save_LIBS="$LIBS"
- save_CXXFLAGS="$CXXFLAGS"
- LIBS="$PTHREAD_LIBS $LIBS"
- CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
-
- # Check for various functions. We must include pthread.h,
- # since some functions may be macros. (On the Sequent, we
- # need a special flag -Kthread to make this header compile.)
- # We check for pthread_join because it is in -lpthread on IRIX
- # while pthread_create is in libc. We check for pthread_attr_init
- # due to DEC craziness with -lpthreads. We check for
- # pthread_cleanup_push because it is one of the few pthread
- # functions on Solaris that doesn't have a non-functional libc stub.
- # We try pthread_create on general principles.
- #
- AC_TRY_LINK([#include <pthread.h>],
- [pthread_t th; pthread_join(th, 0);
- pthread_attr_init(0); pthread_cleanup_push(0, 0);
- pthread_create(0,0,0,0); pthread_cleanup_pop(0);],
- [acx_pthread_ok=yes])
-
- LIBS="$save_LIBS"
- CXXFLAGS="$save_CXXFLAGS"
-
- AC_MSG_RESULT($acx_pthread_ok)
- if test "x$acx_pthread_ok" = xyes; then
- break;
- fi
-
- PTHREAD_LIBS=""
- PTHREAD_CXXFLAGS=""
-done
-fi
-
-# Various other checks:
-if test "x$acx_pthread_ok" = xyes; then
- save_LIBS="$LIBS"
- LIBS="$PTHREAD_LIBS $LIBS"
- save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
-
-dnl # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
-dnl AC_MSG_CHECKING([for joinable pthread attribute])
-dnl attr_name=unknown
-dnl for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-dnl AC_TRY_LINK([#include <pthread.h>], [int attr=$attr; return attr;],
-dnl [attr_name=$attr; break])
-dnl done
-dnl AC_MSG_RESULT($attr_name)
-dnl if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
-dnl AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
-dnl [Define to necessary symbol if this constant
-dnl uses a non-standard name on your system.])
-dnl fi
-
- AC_MSG_CHECKING([if more special flags are required for pthreads])
- flag=no
- case "${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$flag" != xno; then
- PTHREAD_CXXFLAGS="$flag $PTHREAD_CXXFLAGS"
- fi
-
- LIBS="$save_LIBS"
- CXXFLAGS="$save_CXXFLAGS"
-
-dnl # More AIX lossage: must compile with xlC_r
-dnl if test x"$GXX" != xyes; then
-dnl AC_CHECK_PROGS(PTHREAD_CXX, xlC_r, ${CXX})
-dnl else
-dnl PTHREAD_CXX=$CXX
-dnl fi
-
-else
- PTHREAD_CXX="$CXX"
-fi
-
-AC_SUBST(PTHREAD_LIBS)
-AC_SUBST(PTHREAD_CXXFLAGS)
-AC_SUBST(PTHREAD_CXX)
-
-# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$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
--
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