| 1 | dnl synergy -- mouse and keyboard sharing utility
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| 2 | dnl Copyright (C) 2002 Chris Schoeneman
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| 3 | dnl
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| 4 | dnl This package is free software; you can redistribute it and/or
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| 5 | dnl modify it under the terms of the GNU General Public License
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| 6 | dnl found in the file COPYING that should have accompanied this file.
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| 7 | dnl
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| 8 | dnl This package is distributed in the hope that it will be useful,
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| 9 | dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 10 | dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 11 | dnl GNU General Public License for more details.
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| 12 |
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| 13 | AC_DEFUN([ACX_CHECK_SOCKLEN_T], [
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| 14 | AC_MSG_CHECKING([for socklen_t])
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| 15 | AC_TRY_COMPILE([
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| 16 | #include <unistd.h>
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| 17 | #include <sys/socket.h>
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| 18 | ],
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| 19 | [socklen_t len;],[acx_socklen_t_ok=yes],[acx_socklen_t_ok=no])
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| 20 | AC_MSG_RESULT($acx_socklen_t_ok)
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| 21 | if test x"$acx_socklen_t_ok" = xyes; then
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| 22 | ifelse([$1],,AC_DEFINE(HAVE_SOCKLEN_T,1,[Define if your compiler defines socklen_t.]),[$1])
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| 23 | :
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| 24 | else
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| 25 | acx_socklen_t_ok=no
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| 26 | $2
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| 27 | fi
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| 28 | ])dnl ACX_CHECK_SOCKLEN_T
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| 29 |
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| 30 | AC_DEFUN([ACX_CHECK_CXX], [
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| 31 | AC_MSG_CHECKING([if g++ defines correct C++ macro])
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| 32 | AC_TRY_COMPILE(, [
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| 33 | #if defined(_LANGUAGE_C) && !defined(_LANGUAGE_C_PLUS_PLUS)
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| 34 | #error wrong macro
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| 35 | #endif],[acx_cxx_macro_ok=yes],[acx_cxx_macro_ok=no])
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| 36 | AC_MSG_RESULT($acx_cxx_macro_ok)
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| 37 | if test x"$acx_cxx_macro_ok" = xyes; then
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| 38 | SYNERGY_CXXFLAGS=""
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| 39 | else
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| 40 | SYNERGY_CXXFLAGS="-U_LANGUAGE_C -D_LANGUAGE_C_PLUS_PLUS"
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| 41 | fi
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| 42 | ])dnl ACX_CHECK_CXX
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| 43 |
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| 44 | AC_DEFUN([ACX_CHECK_CXX_BOOL], [
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| 45 | AC_MSG_CHECKING([for bool support])
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| 46 | AC_TRY_COMPILE(, [bool t = true, f = false;],
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| 47 | [acx_cxx_bool_ok=yes],[acx_cxx_bool_ok=no])
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| 48 | AC_MSG_RESULT($acx_cxx_bool_ok)
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| 49 | if test x"$acx_cxx_bool_ok" = xyes; then
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| 50 | ifelse([$1],,AC_DEFINE(HAVE_CXX_BOOL,1,[Define if your compiler has bool support.]),[$1])
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| 51 | :
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| 52 | else
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| 53 | acx_cxx_bool_ok=no
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| 54 | $2
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| 55 | fi
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| 56 | ])dnl ACX_CHECK_CXX_BOOL
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| 57 |
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| 58 | AC_DEFUN([ACX_CHECK_CXX_EXCEPTIONS], [
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| 59 | AC_MSG_CHECKING([for exception support])
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| 60 | AC_TRY_COMPILE(, [try{throw int(4);}catch(int){throw;}catch(...){}],
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| 61 | [acx_cxx_exception_ok=yes],[acx_cxx_exception_ok=no])
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| 62 | AC_MSG_RESULT($acx_cxx_exception_ok)
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| 63 | if test x"$acx_cxx_exception_ok" = xyes; then
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| 64 | ifelse([$1],,AC_DEFINE(HAVE_CXX_EXCEPTIONS,1,[Define if your compiler has exceptions support.]),[$1])
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| 65 | :
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| 66 | else
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| 67 | acx_cxx_exception_ok=no
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| 68 | $2
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| 69 | fi
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| 70 | ])dnl ACX_CHECK_CXX_EXCEPTIONS
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| 71 |
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| 72 | AC_DEFUN([ACX_CHECK_CXX_CASTS], [
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| 73 | AC_MSG_CHECKING([for C++ cast support])
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| 74 | AC_TRY_COMPILE(, [const char* f="a";const_cast<char*>(f);
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| 75 | reinterpret_cast<const int*>(f);static_cast<int>(4.5);],
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| 76 | [acx_cxx_cast_ok=yes],[acx_cxx_cast_ok=no])
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| 77 | AC_MSG_RESULT($acx_cxx_cast_ok)
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| 78 | if test x"$acx_cxx_cast_ok" = xyes; then
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| 79 | ifelse([$1],,AC_DEFINE(HAVE_CXX_CASTS,1,[Define if your compiler has C++ cast support.]),[$1])
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| 80 | :
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| 81 | else
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| 82 | acx_cxx_cast_ok=no
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| 83 | $2
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| 84 | fi
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| 85 | ])dnl ACX_CHECK_CXX_CASTS
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| 86 |
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| 87 | AC_DEFUN([ACX_CHECK_CXX_MUTABLE], [
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| 88 | AC_MSG_CHECKING([for mutable support])
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| 89 | AC_TRY_COMPILE(, [struct A{mutable int b;void f() const {b=0;}};
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| 90 | A a;a.f();],[acx_cxx_mutable_ok=yes],[acx_cxx_mutable_ok=no])
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| 91 | AC_MSG_RESULT($acx_cxx_mutable_ok)
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| 92 | if test x"$acx_cxx_mutable_ok" = xyes; then
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| 93 | ifelse([$1],,AC_DEFINE(HAVE_CXX_MUTABLE,1,[Define if your compiler has mutable support.]),[$1])
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| 94 | :
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| 95 | else
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| 96 | acx_cxx_mutable_ok=no
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| 97 | $2
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| 98 | fi
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| 99 | ])dnl ACX_CHECK_CXX_MUTABLE
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| 100 |
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| 101 | AC_DEFUN([ACX_CHECK_CXX_STDLIB], [
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| 102 | AC_MSG_CHECKING([for C++ standard library])
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| 103 | AC_TRY_LINK([#include <set>], [std::set<int> a; a.insert(3);],
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| 104 | [acx_cxx_stdlib_ok=yes],[acx_cxx_stdlib_ok=no])
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| 105 | AC_MSG_RESULT($acx_cxx_stdlib_ok)
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| 106 | if test x"$acx_cxx_stdlib_ok" = xyes; then
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| 107 | ifelse([$1],,AC_DEFINE(HAVE_CXX_STDLIB,1,[Define if your compiler has standard C++ library support.]),[$1])
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| 108 | :
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| 109 | else
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| 110 | acx_cxx_stdlib_ok=no
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| 111 | $2
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| 112 | fi
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| 113 | ])dnl ACX_CHECK_CXX_STDLIB
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| 114 |
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| 115 | AC_DEFUN([ACX_CHECK_GETPWUID_R], [
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| 116 | AC_MSG_CHECKING([for working getpwuid_r])
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| 117 | AC_TRY_LINK([#include <pwd.h>],
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| 118 | [char buffer[4096]; struct passwd pwd, *pwdp;
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| 119 | getpwuid_r(0, &pwd, buffer, sizeof(buffer), &pwdp);],
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| 120 | acx_getpwuid_r_ok=yes, acx_getpwuid_r_ok=no)
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| 121 | AC_MSG_RESULT($acx_getpwuid_r_ok)
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| 122 | if test x"$acx_getpwuid_r_ok" = xyes; then
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| 123 | ifelse([$1],,AC_DEFINE(HAVE_GETPWUID_R,1,[Define if you have a working \`getpwuid_r\' function.]),[$1])
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| 124 | :
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| 125 | else
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| 126 | acx_getpwuid_r_ok=no
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| 127 | $2
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| 128 | fi
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| 129 | ])dnl ACX_CHECK_GETPWUID_R
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| 130 |
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| 131 | AC_DEFUN([ACX_CHECK_POLL], [
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| 132 | AC_MSG_CHECKING([for poll])
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| 133 | AC_TRY_LINK([#include <poll.h>],
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| 134 | [#if defined(_POLL_EMUL_H_)
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| 135 | #error emulated poll
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| 136 | #endif
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| 137 | struct pollfd ufds[] = { 0, POLLIN, 0 }; poll(ufds, 1, 10);],
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| 138 | acx_poll_ok=yes, acx_poll_ok=no)
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| 139 | AC_MSG_RESULT($acx_poll_ok)
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| 140 | if test x"$acx_poll_ok" = xyes; then
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| 141 | ifelse([$1],,AC_DEFINE(HAVE_POLL,1,[Define if you have the \`poll\' function.]),[$1])
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| 142 | :
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| 143 | else
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| 144 | acx_poll_ok=no
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| 145 | $2
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| 146 | fi
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| 147 | ])dnl ACX_CHECK_POLL
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| 148 |
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| 149 | dnl See if we need extra libraries for nanosleep
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| 150 | AC_DEFUN([ACX_CHECK_NANOSLEEP], [
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| 151 | acx_nanosleep_ok=no
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| 152 | acx_nanosleep_list=""
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| 153 |
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| 154 | dnl check if user has set NANOSLEEP_LIBS
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| 155 | save_user_NANOSLEEP_LIBS="$NANOSLEEP_LIBS"
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| 156 | if test x"$NANOSLEEP_LIBS" != x; then
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| 157 | acx_nanosleep_list=user
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| 158 | fi
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| 159 |
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| 160 | dnl check various libraries (including no extra libraries) for
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| 161 | dnl nanosleep. `none' should appear first.
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| 162 | acx_nanosleep_list="none $acx_nanosleep_list rt"
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| 163 | for flag in $acx_nanosleep_list; do
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| 164 | case $flag in
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| 165 | none)
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| 166 | AC_MSG_CHECKING([for nanosleep])
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| 167 | NANOSLEEP_LIBS=""
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| 168 | ;;
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| 169 |
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| 170 | user)
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| 171 | AC_MSG_CHECKING([for nanosleep in $save_user_NANOSLEEP_LIBS])
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| 172 | NANOSLEEP_LIBS="$save_user_NANOSLEEP_LIBS"
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| 173 | ;;
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| 174 |
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| 175 | *)
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| 176 | AC_MSG_CHECKING([for nanosleep in -l$flag])
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| 177 | NANOSLEEP_LIBS="-l$flag"
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| 178 | ;;
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| 179 | esac
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| 180 |
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| 181 | save_LIBS="$LIBS"
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| 182 | LIBS="$NANOSLEEP_LIBS $LIBS"
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| 183 | AC_TRY_LINK([#include <time.h>],
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| 184 | [struct timespec t = { 1, 1000 }; nanosleep(&t, NULL);],
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| 185 | acx_nanosleep_ok=yes, acx_nanosleep_ok=no)
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| 186 | LIBS="$save_LIBS"
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| 187 | AC_MSG_RESULT($acx_nanosleep_ok)
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| 188 | if test x"$acx_nanosleep_ok" = xyes; then
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| 189 | break;
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| 190 | fi
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| 191 | NANOSLEEP_LIBS=""
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| 192 | done
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| 193 |
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| 194 | AC_SUBST(NANOSLEEP_LIBS)
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| 195 |
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| 196 | # execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
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| 197 | if test x"$acx_nanosleep_ok" = xyes; then
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| 198 | ifelse([$1],,AC_DEFINE(HAVE_NANOSLEEP,1,[Define if you have the \`nanosleep\' function.]),[$1])
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| 199 | :
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| 200 | else
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| 201 | acx_nanosleep_ok=no
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| 202 | $2
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| 203 | fi
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| 204 | ])dnl ACX_CHECK_NANOSLEEP
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| 205 |
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| 206 | dnl See if we need extra libraries for inet_aton
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| 207 | AC_DEFUN([ACX_CHECK_INET_ATON], [
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| 208 | acx_inet_aton_ok=no
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| 209 | acx_inet_aton_list=""
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| 210 |
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| 211 | dnl check if user has set INET_ATON_LIBS
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| 212 | save_user_INET_ATON_LIBS="$INET_ATON_LIBS"
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| 213 | if test x"$INET_ATON_LIBS" != x; then
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| 214 | acx_inet_aton_list=user
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| 215 | fi
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| 216 |
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| 217 | dnl check various libraries (including no extra libraries) for
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| 218 | dnl inet_aton. `none' should appear first.
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| 219 | acx_inet_aton_list="none $acx_inet_aton_list resolv"
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| 220 | for flag in $acx_inet_aton_list; do
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| 221 | case $flag in
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| 222 | none)
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| 223 | AC_MSG_CHECKING([for inet_aton])
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| 224 | INET_ATON_LIBS=""
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| 225 | ;;
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| 226 |
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| 227 | user)
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| 228 | AC_MSG_CHECKING([for inet_aton in $save_user_INET_ATON_LIBS])
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| 229 | INET_ATON_LIBS="$save_user_INET_ATON_LIBS"
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| 230 | ;;
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| 231 |
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| 232 | *)
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| 233 | AC_MSG_CHECKING([for inet_aton in -l$flag])
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| 234 | INET_ATON_LIBS="-l$flag"
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| 235 | ;;
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| 236 | esac
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| 237 |
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| 238 | save_LIBS="$LIBS"
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| 239 | LIBS="$INET_ATON_LIBS $LIBS"
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| 240 | AC_TRY_LINK([#include <sys/types.h>
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| 241 | #include <sys/socket.h>
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| 242 | #include <netinet/in.h>
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| 243 | #include <arpa/inet.h>],
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| 244 | [struct in_addr addr; inet_aton("foo.bar", &addr);],
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| 245 | acx_inet_aton_ok=yes, acx_inet_aton_ok=no)
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| 246 | LIBS="$save_LIBS"
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| 247 | AC_MSG_RESULT($acx_inet_aton_ok)
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| 248 | if test x"$acx_inet_aton_ok" = xyes; then
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| 249 | AC_DEFINE(HAVE_INET_ATON,1,[Define if you have the \`inet_aton\' function.])
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| 250 | break;
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| 251 | fi
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| 252 | INET_ATON_LIBS=""
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| 253 | done
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| 254 |
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| 255 | AC_SUBST(INET_ATON_LIBS)
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| 256 | ])dnl ACX_CHECK_INET_ATON
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| 257 |
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| 258 | dnl The following macros are from http://www.gnu.org/software/ac-archive/
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| 259 | dnl which distributes them under the following license:
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| 260 | dnl
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| 261 | dnl Every Autoconf macro presented on this web site is free software; you can
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| 262 | dnl redistribute it and/or modify it under the terms of the GNU General
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| 263 | dnl Public License as published by the Free Software Foundation; either
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| 264 | dnl version 2, or (at your option) any later version.
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| 265 | dnl
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| 266 | dnl They are distributed in the hope that they will be useful, but WITHOUT
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| 267 | dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
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| 268 | dnl FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
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| 269 | dnl more details. (You should have received a copy of the GNU General Public
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| 270 | dnl License along with this program; if not, write to the Free Software
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| 271 | dnl Foundation, Inc., 59 Temple Place -- Suite 330, Boston, MA 02111-1307,
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| 272 | dnl USA.)
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| 273 | dnl
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| 274 | dnl As a special exception, the Free Software Foundation gives unlimited
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| 275 | dnl permission to copy, distribute and modify the configure scripts that are
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| 276 | dnl the output of Autoconf. You need not follow the terms of the GNU General
|
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| 277 | dnl Public License when using or distributing such scripts, even though
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| 278 | dnl portions of the text of Autoconf appear in them. The GNU General Public
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| 279 | dnl License (GPL) does govern all other use of the material that constitutes
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| 280 | dnl the Autoconf program.
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| 281 | dnl
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| 282 | dnl Certain portions of the Autoconf source text are designed to be copied
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| 283 | dnl (in certain cases, depending on the input) into the output of Autoconf.
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| 284 | dnl We call these the "data" portions. The rest of the Autoconf source text
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| 285 | dnl consists of comments plus executable code that decides which of the data
|
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| 286 | dnl portions to output in any given case. We call these comments and
|
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| 287 | dnl executable code the "non-data" portions. Autoconf never copies any of the
|
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| 288 | dnl non-data portions into its output.
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| 289 | dnl
|
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| 290 | dnl This special exception to the GPL applies to versions of Autoconf
|
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| 291 | dnl released by the Free Software Foundation. When you make and distribute a
|
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| 292 | dnl modified version of Autoconf, you may extend this special exception to
|
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| 293 | dnl the GPL to apply to your modified version as well, *unless* your modified
|
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| 294 | dnl version has the potential to copy into its output some of the text that
|
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| 295 | dnl was the non-data portion of the version that you started with. (In other
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| 296 | dnl words, unless your change moves or copies text from the non-data portions
|
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| 297 | dnl to the data portions.) If your modification has such potential, you must
|
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| 298 | dnl delete any notice of this special exception to the GPL from your modified
|
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| 299 | dnl version
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| 300 |
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| 301 | AC_DEFUN([ACX_PTHREAD], [
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| 302 | AC_REQUIRE([AC_CANONICAL_HOST])
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| 303 | AC_LANG_SAVE
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| 304 | AC_LANG_C
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| 305 | acx_pthread_ok=no
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| 306 |
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| 307 | # We used to check for pthread.h first, but this fails if pthread.h
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| 308 | # requires special compiler flags (e.g. on True64 or Sequent).
|
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| 309 | # It gets checked for in the link test anyway.
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| 310 |
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| 311 | # First of all, check if the user has set any of the PTHREAD_LIBS,
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| 312 | # etcetera environment variables, and if threads linking works using
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| 313 | # them:
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| 314 | if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
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| 315 | save_CFLAGS="$CFLAGS"
|
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| 316 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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|---|
| 317 | save_LIBS="$LIBS"
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| 318 | LIBS="$PTHREAD_LIBS $LIBS"
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| 319 | AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
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| 320 | AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes)
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| 321 | AC_MSG_RESULT($acx_pthread_ok)
|
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| 322 | if test x"$acx_pthread_ok" = xno; then
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| 323 | PTHREAD_LIBS=""
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| 324 | PTHREAD_CFLAGS=""
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| 325 | fi
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| 326 | LIBS="$save_LIBS"
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| 327 | CFLAGS="$save_CFLAGS"
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| 328 | fi
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| 329 |
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| 330 | # We must check for the threads library under a number of different
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| 331 | # names; the ordering is very important because some systems
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| 332 | # (e.g. DEC) have both -lpthread and -lpthreads, where one of the
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| 333 | # libraries is broken (non-POSIX).
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| 334 |
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| 335 | # Create a list of thread flags to try. Items starting with a "-" are
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| 336 | # C compiler flags, and other items are library names, except for "none"
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| 337 | # which indicates that we try without any flags at all, and "pthread-config"
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| 338 | # which is a program returning the flags for the Pth emulation library.
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| 339 |
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| 340 | acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
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| 341 |
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| 342 | # The ordering *is* (sometimes) important. Some notes on the
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| 343 | # individual items follow:
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| 344 |
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| 345 | # pthreads: AIX (must check this before -lpthread)
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| 346 | # none: in case threads are in libc; should be tried before -Kthread and
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| 347 | # other compiler flags to prevent continual compiler warnings
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| 348 | # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
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| 349 | # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
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| 350 | # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
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| 351 | # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
|
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| 352 | # -pthreads: Solaris/gcc
|
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| 353 | # -mthreads: Mingw32/gcc, Lynx/gcc
|
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| 354 | # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
|
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| 355 | # doesn't hurt to check since this sometimes defines pthreads too;
|
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| 356 | # also defines -D_REENTRANT)
|
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| 357 | # pthread: Linux, etcetera
|
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| 358 | # --thread-safe: KAI C++
|
|---|
| 359 | # pthread-config: use pthread-config program (for GNU Pth library)
|
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| 360 |
|
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| 361 | case "${host_cpu}-${host_os}" in
|
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| 362 | *solaris*)
|
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| 363 |
|
|---|
| 364 | # On Solaris (at least, for some versions), libc contains stubbed
|
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| 365 | # (non-functional) versions of the pthreads routines, so link-based
|
|---|
| 366 | # tests will erroneously succeed. (We need to link with -pthread or
|
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| 367 | # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
|
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| 368 | # a function called by this macro, so we could check for that, but
|
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| 369 | # who knows whether they'll stub that too in a future libc.) So,
|
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| 370 | # we'll just look for -pthreads and -lpthread first:
|
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| 371 |
|
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| 372 | acx_pthread_flags="-pthread -pthreads pthread -mt $acx_pthread_flags"
|
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| 373 | ;;
|
|---|
| 374 | esac
|
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| 375 |
|
|---|
| 376 | if test x"$acx_pthread_ok" = xno; then
|
|---|
| 377 | for flag in $acx_pthread_flags; do
|
|---|
| 378 |
|
|---|
| 379 | case $flag in
|
|---|
| 380 | none)
|
|---|
| 381 | AC_MSG_CHECKING([whether pthreads work without any flags])
|
|---|
| 382 | ;;
|
|---|
| 383 |
|
|---|
| 384 | -*)
|
|---|
| 385 | AC_MSG_CHECKING([whether pthreads work with $flag])
|
|---|
| 386 | PTHREAD_CFLAGS="$flag"
|
|---|
| 387 | ;;
|
|---|
| 388 |
|
|---|
| 389 | pthread-config)
|
|---|
| 390 | AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no)
|
|---|
| 391 | if test x"$acx_pthread_config" = xno; then continue; fi
|
|---|
| 392 | PTHREAD_CFLAGS="`pthread-config --cflags`"
|
|---|
| 393 | PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
|
|---|
| 394 | ;;
|
|---|
| 395 |
|
|---|
| 396 | *)
|
|---|
| 397 | AC_MSG_CHECKING([for the pthreads library -l$flag])
|
|---|
| 398 | PTHREAD_LIBS="-l$flag"
|
|---|
| 399 | ;;
|
|---|
| 400 | esac
|
|---|
| 401 |
|
|---|
| 402 | save_LIBS="$LIBS"
|
|---|
| 403 | save_CFLAGS="$CFLAGS"
|
|---|
| 404 | LIBS="$PTHREAD_LIBS $LIBS"
|
|---|
| 405 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|---|
| 406 |
|
|---|
| 407 | # Check for various functions. We must include pthread.h,
|
|---|
| 408 | # since some functions may be macros. (On the Sequent, we
|
|---|
| 409 | # need a special flag -Kthread to make this header compile.)
|
|---|
| 410 | # We check for pthread_join because it is in -lpthread on IRIX
|
|---|
| 411 | # while pthread_create is in libc. We check for pthread_attr_init
|
|---|
| 412 | # due to DEC craziness with -lpthreads. We check for
|
|---|
| 413 | # pthread_cleanup_push because it is one of the few pthread
|
|---|
| 414 | # functions on Solaris that doesn't have a non-functional libc stub.
|
|---|
| 415 | # We try pthread_create on general principles.
|
|---|
| 416 | AC_TRY_LINK([#include <pthread.h>],
|
|---|
| 417 | [pthread_t th; pthread_join(th, 0);
|
|---|
| 418 | pthread_attr_init(0); pthread_cleanup_push(0, 0);
|
|---|
| 419 | pthread_create(0,0,0,0); pthread_cleanup_pop(0); ],
|
|---|
| 420 | [acx_pthread_ok=yes])
|
|---|
| 421 |
|
|---|
| 422 | LIBS="$save_LIBS"
|
|---|
| 423 | CFLAGS="$save_CFLAGS"
|
|---|
| 424 |
|
|---|
| 425 | AC_MSG_RESULT($acx_pthread_ok)
|
|---|
| 426 | if test "x$acx_pthread_ok" = xyes; then
|
|---|
| 427 | break;
|
|---|
| 428 | fi
|
|---|
| 429 |
|
|---|
| 430 | PTHREAD_LIBS=""
|
|---|
| 431 | PTHREAD_CFLAGS=""
|
|---|
| 432 | done
|
|---|
| 433 | fi
|
|---|
| 434 |
|
|---|
| 435 | # Various other checks:
|
|---|
| 436 | if test "x$acx_pthread_ok" = xyes; then
|
|---|
| 437 | save_LIBS="$LIBS"
|
|---|
| 438 | LIBS="$PTHREAD_LIBS $LIBS"
|
|---|
| 439 | save_CFLAGS="$CFLAGS"
|
|---|
| 440 | CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|---|
| 441 |
|
|---|
| 442 | # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
|
|---|
| 443 | AC_MSG_CHECKING([for joinable pthread attribute])
|
|---|
| 444 | attr_name=unknown
|
|---|
| 445 | for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
|
|---|
| 446 | AC_TRY_LINK([#include <pthread.h>], [int attr=$attr;],
|
|---|
| 447 | [attr_name=$attr; break])
|
|---|
| 448 | done
|
|---|
| 449 | AC_MSG_RESULT($attr_name)
|
|---|
| 450 | if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
|
|---|
| 451 | AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name,
|
|---|
| 452 | [Define to necessary symbol if this constant
|
|---|
| 453 | uses a non-standard name on your system.])
|
|---|
| 454 | fi
|
|---|
| 455 |
|
|---|
| 456 | AC_MSG_CHECKING([if more special flags are required for pthreads])
|
|---|
| 457 | flag=no
|
|---|
| 458 | case "${host_cpu}-${host_os}" in
|
|---|
| 459 | *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
|
|---|
| 460 | *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
|
|---|
| 461 | esac
|
|---|
| 462 | AC_MSG_RESULT(${flag})
|
|---|
| 463 | if test "x$flag" != xno; then
|
|---|
| 464 | PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
|
|---|
| 465 | fi
|
|---|
| 466 |
|
|---|
| 467 | # Detect POSIX sigwait()
|
|---|
| 468 | AC_MSG_CHECKING([for POSIX sigwait])
|
|---|
| 469 | AC_TRY_LINK([#include <pthread.h>
|
|---|
| 470 | #include <signal.h>],
|
|---|
| 471 | [sigset_t sigset; int signal; sigwait(&sigset, &signal);],
|
|---|
| 472 | ok=yes, ok=unknown)
|
|---|
| 473 | if test x"$ok" = xunknown; then
|
|---|
| 474 | save_CFLAGS2="$CFLAGS"
|
|---|
| 475 | CFLAGS="$CFLAGS -D_POSIX_PTHREAD_SEMANTICS"
|
|---|
| 476 | AC_TRY_LINK([#include <pthread.h>
|
|---|
| 477 | #include <signal.h>],
|
|---|
| 478 | [sigset_t sigset; int signal; sigwait(&sigset, &signal);],
|
|---|
| 479 | ok=-D_POSIX_PTHREAD_SEMANTICS, ok=no)
|
|---|
| 480 | CFLAGS="$save_CFLAGS2"
|
|---|
| 481 | fi
|
|---|
| 482 | AC_MSG_RESULT(${ok})
|
|---|
| 483 | if test x"$ok" != xno; then
|
|---|
| 484 | AC_DEFINE(HAVE_POSIX_SIGWAIT,1,[Define if you have a POSIX \`sigwait\' function.])
|
|---|
| 485 | if test x"$ok" != xyes; then
|
|---|
| 486 | PTHREAD_CFLAGS="$ok $PTHREAD_CFLAGS"
|
|---|
| 487 | fi
|
|---|
| 488 | fi
|
|---|
| 489 |
|
|---|
| 490 | # Detect pthread signal functions
|
|---|
| 491 | AC_MSG_CHECKING([for pthread signal functions])
|
|---|
| 492 | AC_TRY_LINK([#include <pthread.h>
|
|---|
| 493 | #include <signal.h>],
|
|---|
| 494 | [pthread_kill(pthread_self(), SIGTERM);],
|
|---|
| 495 | ok=yes, ok=no)
|
|---|
| 496 | AC_MSG_RESULT(${ok})
|
|---|
| 497 | if test x"$ok" = xyes; then
|
|---|
| 498 | AC_DEFINE(HAVE_PTHREAD_SIGNAL,1,[Define if you have \`pthread_sigmask\' and \`pthread_kill\' functions.])
|
|---|
| 499 | fi
|
|---|
| 500 |
|
|---|
| 501 | LIBS="$save_LIBS"
|
|---|
| 502 | CFLAGS="$save_CFLAGS"
|
|---|
| 503 |
|
|---|
| 504 | # More AIX lossage: must compile with cc_r
|
|---|
| 505 | AC_CHECK_PROG(PTHREAD_CC, cc_r, cc_r, ${CC})
|
|---|
| 506 | else
|
|---|
| 507 | PTHREAD_CC="$CC"
|
|---|
| 508 | fi
|
|---|
| 509 |
|
|---|
| 510 | AC_SUBST(PTHREAD_LIBS)
|
|---|
| 511 | AC_SUBST(PTHREAD_CFLAGS)
|
|---|
| 512 | AC_SUBST(PTHREAD_CC)
|
|---|
| 513 |
|
|---|
| 514 | # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
|
|---|
| 515 | if test x"$acx_pthread_ok" = xyes; then
|
|---|
| 516 | ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1])
|
|---|
| 517 | :
|
|---|
| 518 | else
|
|---|
| 519 | acx_pthread_ok=no
|
|---|
| 520 | $2
|
|---|
| 521 | fi
|
|---|
| 522 | AC_LANG_RESTORE
|
|---|
| 523 | ])dnl ACX_PTHREAD
|
|---|
| 524 |
|
|---|
| 525 | dnl enable maximum compiler warnings. must ignore unknown pragmas to
|
|---|
| 526 | dnl build on solaris.
|
|---|
| 527 | dnl we only know how to do this for g++
|
|---|
| 528 | AC_DEFUN([ACX_CXX_WARNINGS], [
|
|---|
| 529 | AC_MSG_CHECKING([for C++ compiler warning flags])
|
|---|
| 530 | if test "$GXX" = "yes"; then
|
|---|
| 531 | acx_cxx_warnings="-Wall -Wno-unknown-pragmas"
|
|---|
| 532 | fi
|
|---|
| 533 | if test -n "$acx_cxx_warnings"; then
|
|---|
| 534 | CXXFLAGS="$CXXFLAGS $acx_cxx_warnings"
|
|---|
| 535 | else
|
|---|
| 536 | acx_cxx_warnings="unknown"
|
|---|
| 537 | fi
|
|---|
| 538 | AC_MSG_RESULT($acx_cxx_warnings)
|
|---|
| 539 | ])dnl ACX_CXX_WARNINGS
|
|---|
| 540 |
|
|---|
| 541 | dnl enable compiler warnings are errors
|
|---|
| 542 | dnl we only know how to do this for g++
|
|---|
| 543 | AC_DEFUN([ACX_CXX_WARNINGS_ARE_ERRORS], [
|
|---|
| 544 | AC_MSG_CHECKING([for C++ compiler warning are errors flags])
|
|---|
| 545 | if test "$GXX" = "yes"; then
|
|---|
| 546 | acx_cxx_warnings_are_errors="-Werror"
|
|---|
| 547 | fi
|
|---|
| 548 | if test -n "$acx_cxx_warnings_are_errors"; then
|
|---|
| 549 | CXXFLAGS="$CXXFLAGS $acx_cxx_warnings_are_errors"
|
|---|
| 550 | else
|
|---|
| 551 | acx_cxx_warnings_are_errors="unknown"
|
|---|
| 552 | fi
|
|---|
| 553 | AC_MSG_RESULT($acx_cxx_warnings_are_errors)
|
|---|
| 554 | ])dnl ACX_CXX_WARNINGS_ARE_ERRORS
|
|---|
