Compat futex
[urcu.git] / 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
This page took 0.04508 seconds and 4 git commands to generate.