configure.ac

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4
   5 AC_INIT([userspace-rcu], [0.2.3-alpha], [mathieu dot desnoyers at polymtl dot ca])
   6 AC_CONFIG_AUX_DIR([config])
   7 AC_CANONICAL_TARGET
   8 AC_CANONICAL_HOST
   9 AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
  10 AC_CONFIG_SRCDIR([urcu.h])
  11
  12 AH_TEMPLATE([CONFIG_URCU_SMP], [Enable SMP support. With SMP support enabled, uniprocessors are also supported. With SMP support disabled, UP systems work fine, but the behavior of SMP systems is undefined.])
  13 AH_TEMPLATE([CONFIG_URCU_HAVE_FENCE], [Defined when on a system that has memory fence instructions.])
  14 AH_TEMPLATE([CONFIG_URCU_HAVE_FUTEX], [Defined when on a system with futex support.])
  15 AC_CONFIG_HEADERS([urcu/config.h])
  16
  17 # Checks for programs.
  18 AC_PROG_CC
  19 AC_PROG_MAKE_SET
  20 AC_PROG_LIBTOOL
  21
  22 # Checks for typedefs, structures, and compiler characteristics.
  23 AC_C_INLINE
  24 AC_TYPE_PID_T
  25 AC_TYPE_SIZE_T
  26
  27 # Checks for library functions.
  28 AC_FUNC_MALLOC
  29 AC_FUNC_MMAP
  30 AC_CHECK_FUNCS([bzero gettimeofday munmap strtoul])
  31
  32 # Find arch type
  33 case $target_cpu in
  34         i386) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
  35         i486) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
  36         i586) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
  37         i686) ARCHTYPE="x86"; SUBARCHTYPE="x86compat" ;;
  38         x86_64) ARCHTYPE="x86";;
  39         powerpc) ARCHTYPE="ppc" ;;
  40         ppc64) ARCHTYPE="ppc" ;;
  41         powerpc64) ARCHTYPE="ppc" ;;
  42         ppc) ARCHTYPE="ppc" ;;
  43         s390) ARCHTYPE="s390" ;;
  44         s390x) ARCHTYPE="s390" ;;
  45         *) ARCHTYPE="unknown";;
  46 esac
  47
  48 if test "$ARCHTYPE" = "unknown"; then
  49         AC_MSG_ERROR([Unable to detect the architecture.])
  50 fi
  51 AC_SUBST(ARCHTYPE)
  52 AC_SUBST(SUBARCHTYPE)
  53
  54 [
  55 if test "x$ARCHTYPE" = "xx86" -a "x$target_cpu" != "xi386" -a "x$target_cpu" != "xi486" -a "x$target_cpu" != "xi586"; then
  56 ]
  57         AC_DEFINE([CONFIG_URCU_HAVE_FENCE], [1])
  58 [
  59 fi
  60 ]
  61
  62 AC_MSG_CHECKING([sys_futex()])
  63 AC_TRY_COMPILE(
  64 [
  65 #include <sys/syscall.h>
  66 ],
  67 [
  68 #ifndef __NR_futex
  69 #error "futexes not available"
  70 #endif
  71 ],
  72 [
  73         AC_MSG_RESULT([yes])
  74         AC_DEFINE([CONFIG_URCU_HAVE_FUTEX], [1])
  75         compat_futex_test=0
  76 ]
  77 ,
  78 [
  79         AC_MSG_RESULT([no])
  80         compat_futex_test=1
  81 ]
  82 )
  83
  84 AM_CONDITIONAL([COMPAT_FUTEX], [ test "x$compat_futex_test" = "x1" ])
  85
  86 AM_CONDITIONAL([GCC_API], [test "x$ARCHTYPE" != xx86 -a "x$ARCHTYPE" != xppc])
  87
  88 AM_CONDITIONAL([COMPAT_ARCH], [test "x$SUBARCHTYPE" = xx86compat ])
  89
  90 AC_ARG_ENABLE([smp-support], [  --disable-smp-support   Disable SMP support. Warning: only use this
  91                           on uniprocessor systems. [[default=enabled]]], [def_smp_support=$enableval], [def_smp_support="yes"])
  92
  93 [
  94 if test "$def_smp_support" = "no"; then
  95         echo "SMP support disabled."
  96 else
  97 ]
  98         AC_DEFINE([CONFIG_URCU_SMP], [1])
  99 [
 100         echo "SMP support enabled."
 101 fi
 102 ]
 103
 104 AC_CONFIG_FILES([
 105         Makefile
 106         tests/Makefile
 107 ])
 108 AC_OUTPUT