mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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bf81ebae7c
Original commit message from CVS: * a first pass at cleaning up the configure stuff * new cothread library started, some experimental stack allocation code is in place
279 lines
8.8 KiB
Text
279 lines
8.8 KiB
Text
dnl ##
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dnl ## NGPT - Next Generation POSIX Threading
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dnl ## Copyright (c) 2001 IBM Corporation <babt@us.ibm.com>
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dnl ## Portions Copyright (c) 1999-2000 Ralf S. Engelschall <rse@engelschall.com>
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dnl ##
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dnl ## This file is part of BlueThreads, a non-preemptive thread scheduling
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dnl ## library which can be found at http://www.ibm.com/developer
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dnl ##
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dnl ## This library is free software; you can redistribute it and/or
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dnl ## modify it under the terms of the GNU Lesser General Public
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dnl ## License as published by the Free Software Foundation; either
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dnl ## version 2.1 of the License, or (at your option) any later version.
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dnl ##
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dnl ## This library is distributed in the hope that it will be useful,
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dnl ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl ## Lesser General Public License for more details.
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dnl ##
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dnl ## You should have received a copy of the GNU Lesser General Public
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dnl ## License along with this library; if not, write to the Free Software
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dnl ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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dnl ## USA.
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dnl ##
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dnl ## configure.in: ngpt Autoconf specification
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dnl ##
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dnl # hacked on for inclusion into the gstreamer project 20 Jan 2002 by Andy
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dnl # Wingo <wingo@pobox.com>
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dnl # ``Programming in Bourne-Shell
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dnl # is a higher form of masochism.''
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dnl # -- Unknown
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AC_INIT
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AM_CONFIG_HEADER(pth_acdef.h)
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AM_INIT_AUTOMAKE(pth, 1400)
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AC_MSG_PART(Build Tools)
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AC_PROG_CC
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AC_PROG_CPP
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AC_SET_MAKE
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AM_PROG_LIBTOOL
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dnl ## Support for some special platform/compiler options
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case "$PLATFORM:$CC" in
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*-sun-solaris2*:cc )
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# shut-up harmless warnings caused by do-while macros on Solaris
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test ".$ac_cv_prog_gcc" = ".no" && PTH_CFLAGS="$PTH_CFLAGS -w"
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;;
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*-*-sysv*uw[27]*:cc )
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# shut-up harmless warnings caused by do-while macros on UnixWare
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PTH_CFLAGS="$PTH_CFLAGS -w"
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;;
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*-hp-hpux*:cc )
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# HPUX needs a few special options to find its ANSI C brain
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PTH_CFLAGS="$PTH_CFLAGS -Ae -O"
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;;
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*-hp-hpux*:CC )
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# HPUX outputs useless warnings
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PTH_CFLAGS="$PTH_CFLAGS -w"
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;;
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*-sgi-irix6.2:cc )
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# shut-up warnings caused by IRIX brain-dead 32/64 bit stuff
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PTH_LDFLAGS="$PTH_LDFLAGS -woff 85 -Wl,-woff,84 -Wl,-woff,85"
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;;
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*-sgi-irix6.5.[2-9]:cc )
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# since IRIX 6.5.2 the C compiler is smart enough,
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# but the linker is still complaining, of course
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PTH_LDFLAGS="$PTH_LDFLAGS -woff 84,85,134"
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;;
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*-sgi-irix6.5:cc )
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# shut-up warnings caused by IRIX brain-dead 32/64 bit stuff
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PTH_CFLAGS="$PTH_CFLAGS -woff 1110,1048"
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PTH_LDFLAGS="$PTH_LDFLAGS -woff 84,85,134"
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;;
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*-dec-osf4*:cc )
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# make sure the standard compliant functions are used on Tru64/OSF1 4.x
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PTH_CFLAGS="$PTH_CFLAGS -std"
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;;
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*-dec-osf5*:cc )
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# make sure the standard compliant functions are used on Tru64/OSF1 5.x
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PTH_CFLAGS="$PTH_CFLAGS -std -D_XOPEN_SOURCE_EXTENDED"
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;;
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*-*-isc*:* )
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# ISC is brain-dead and needs a bunch of options to find its brain
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PTH_CPPFLAGS="$PTH_CPPFLAGS -D_POSIX_SOURCE";
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PTH_LIBS="$PTH_LIBS -lcposix -linet";
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;;
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esac
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AC_MSG_PART(Mandatory Platform Environment)
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dnl # check for standard headers
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AC_HEADER_STDC
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# FIXME
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AC_HAVE_HEADERS(dnl
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stdio.h stdlib.h stdarg.h string.h signal.h unistd.h setjmp.h fcntl.h dnl
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errno.h sys/types.h)
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AC_CHECK_FUNCTIONS(dnl
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sigaction sigprocmask sigpending sigsuspend)
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AC_BEGIN_DECISION([mandatory system headers and functions])
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AC_IFALLYES(dnl
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header:stdio.h header:stdlib.h header:stdarg.h header:string.h dnl
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header:signal.h header:unistd.h header:setjmp.h header:fcntl.h header:errno.h dnl
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header:sys/types.h dnl
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func:sigaction func:sigprocmask dnl
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func:sigpending func:sigsuspend,
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AC_DECIDE(fine, [all fine]))
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AC_END_DECISION
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AC_MSG_PART(Optional Platform Environment)
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dnl # check whether ss_base instead of ss_sp attribute exists
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AC_CHECK_STRUCTATTR(ss_base, sigaltstack, sys/signal.h)
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AC_CHECK_STRUCTATTR(ss_sp, sigaltstack, sys/signal.h)
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dnl ##
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dnl ## MACHINE CONTEXT IMPLEMENTATION
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dnl ##
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AC_MSG_PART(Machine Context Implementation)
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dnl #
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dnl # 1. determine possibilities
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dnl #
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dnl # check for MCSC method
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AC_CHECK_HEADERS(ucontext.h)
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AC_CHECK_FUNCTIONS(makecontext swapcontext getcontext setcontext)
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AC_CHECK_MCSC(mcsc=yes, mcsc=no)
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dnl # check for SJLJ method
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AC_CHECK_HEADERS(signal.h)
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AC_CHECK_FUNCTIONS(sigsetjmp siglongjmp setjmp longjmp _setjmp _longjmp)
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AC_CHECK_FUNCTIONS(sigaltstack sigstack)
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AC_CHECK_SJLJ(sjlj=yes, sjlj=no, sjlj_type)
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dnl #
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dnl # 2. make a general decision
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dnl #
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if test ".$mcsc" = .yes; then
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mctx_mth=mcsc
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mctx_dsp=sc
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mctx_stk=mc
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elif test ".$sjlj" = .yes; then
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mctx_mth=sjlj
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mctx_dsp=$sjlj_type
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mctx_stk=none
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AC_IFALLYES(func:sigstack, mctx_stk=ss)
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AC_IFALLYES(func:sigaltstack, mctx_stk=sas)
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case $mctx_dsp in
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sjljlx|sjljisc|sjljw32 ) mctx_stk=none
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esac
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else
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AC_ERROR([no appropriate mctx method found])
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fi
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dnl #
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dnl # 3. allow decision to be overridden by user
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dnl #
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AC_ARG_WITH(mctx-mth,dnl
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[ --with-mctx-mth=ID force mctx method (mcsc,sjlj)],[
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case $withval in
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mcsc|sjlj ) mctx_mth=$withval ;;
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* ) AC_ERROR([invalid mctx method -- allowed: mcsc,sjlj]) ;;
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esac
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])dnl
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AC_ARG_WITH(mctx-dsp,dnl
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[ --with-mctx-dsp=ID force mctx dispatching (sc,ssjlj,sjlj,usjlj,sjlje,...)],[
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case $withval in
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sc|ssjlj|sjlj|usjlj|sjlje|sjljlx|sjljisc|sjljw32 ) mctx_dsp=$withval ;;
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* ) AC_ERROR([invalid mctx dispatching -- allowed: sc,ssjlj,sjlj,usjlj,sjlje,sjljlx,sjljisc,sjljw32]) ;;
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esac
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])dnl
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AC_ARG_WITH(mctx-stk,dnl
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[ --with-mctx-stk=ID force mctx stack setup (mc,ss,sas,...)],[
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case $withval in
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mc|ss|sas|none ) mctx_stk=$withval ;;
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* ) AC_ERROR([invalid mctx stack setup -- allowed: mc,ss,sas,none]) ;;
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esac
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])dnl
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dnl #
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dnl # 4. determine a few additional details
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dnl #
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dnl # whether sigaltstack has to use stack_t instead of struct sigaltstack
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AC_CHECK_TYPEDEF(stack_t, signal.h)
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dnl # ibm - test whether we need a separate register stack (IA64).
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AC_CHECK_NEED_FOR_SEPARATE_STACK(PTH_NEED_SEPARATE_REGISTER_STACK)
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dnl # ibm - end
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dnl # direction of stack grow
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AC_CHECK_STACKGROWTH(PTH_STACKGROWTH)
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if test ".$ac_cv_check_stackgrowth" = ".down"; then
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PTH_STACK_GROWTH="down"
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else
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PTH_STACK_GROWTH="up"
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fi
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AC_SUBST(PTH_STACK_GROWTH)
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dnl # how to specify stacks for the various functions
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AC_CHECK_STACKSETUP(makecontext, pth_skaddr_makecontext, pth_sksize_makecontext)
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AC_CHECK_STACKSETUP(sigaltstack, pth_skaddr_sigaltstack, pth_sksize_sigaltstack)
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AC_CHECK_STACKSETUP(sigstack, pth_skaddr_sigstack, pth_sksize_sigstack)
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dnl # how to implement POSIX compliant sig{set,long}jmp()
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case $mctx_dsp in [
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ssjlj )
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pth_sigjmpbuf='sigjmp_buf'
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pth_sigsetjmp='sigsetjmp(buf,1)'
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pth_siglongjmp='siglongjmp(buf,val)'
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;;
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sjlj )
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pth_sigjmpbuf='jmp_buf'
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pth_sigsetjmp='setjmp(buf)'
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pth_siglongjmp='longjmp(buf,val)'
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;;
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usjlj )
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pth_sigjmpbuf='jmp_buf'
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pth_sigsetjmp='_setjmp(buf)'
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pth_siglongjmp='_longjmp(buf,val)'
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;;
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sjlje )
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pth_sigjmpbuf='jmp_buf'
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pth_sigsetjmp='setjmp(buf)'
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pth_siglongjmp='longjmp(buf,val)'
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;;
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sjljlx|sjljisc|sjljw32 )
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pth_sigjmpbuf='sigjmp_buf'
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pth_sigsetjmp='sigsetjmp(buf,1)'
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pth_siglongjmp='siglongjmp(buf,val)'
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;;
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] esac
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pth_sigjmpbuf="#define pth_sigjmpbuf $pth_sigjmpbuf"
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pth_sigsetjmp="#define pth_sigsetjmp(buf) $pth_sigsetjmp"
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pth_siglongjmp="#define pth_siglongjmp(buf,val) $pth_siglongjmp"
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AC_SUBST(pth_sigjmpbuf)
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AC_SUBST(pth_sigsetjmp)
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AC_SUBST(pth_siglongjmp)
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dnl #
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dnl # 5. export the results
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dnl #
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AC_DEFINE_UNQUOTED(PTH_MCTX_MTH_use, [PTH_MCTX_MTH_$mctx_mth])
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AC_DEFINE_UNQUOTED(PTH_MCTX_DSP_use, [PTH_MCTX_DSP_$mctx_dsp])
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AC_DEFINE_UNQUOTED(PTH_MCTX_STK_use, [PTH_MCTX_STK_$mctx_stk])
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PTH_MCTX_ID="$mctx_mth/$mctx_dsp/$mctx_stk"
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AC_MSG_RESULT([decision on mctx implementation... ${TB}${PTH_MCTX_ID}${TN}])
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AC_SUBST(PTH_MCTX_ID)
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AC_MSG_VERBOSE([decided mctx method: $mctx_mth])
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AC_MSG_VERBOSE([decided mctx dispatching: $mctx_dsp])
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AC_MSG_VERBOSE([decided mctx stack setup: $mctx_stk])
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dnl ## Additional support for some special platform/compiler options
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case "$PLATFORM:$CC" in
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*-ibm-mvs*:cc | *-ibm-mvs*:c++ )
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mvs_extras='-W "c,float(ieee)" -W "c,langlvl(extended)" -W "c,expo,dll"'
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PTH_CFLAGS="$PTH_CFLAGS $mvs_extras"
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mvs_extras='-W "l,p,map" -W "l,map,list"'
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PTH_LDFLAGS="$PTH_LDFLAGS $mvs_extras"
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;;
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esac
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AC_MSG_PART(Output Substitution)
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AC_OUTPUT(
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Makefile
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pth.h
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pth_acmac.h
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)
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