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1 # Copyright (C) 2011-2016, Intel Corporation
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2 # All rights reserved.
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3 #
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4 # Redistribution and use in source and binary forms, with or without
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5 # modification, are permitted provided that the following conditions
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6 # are met:
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7 #
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8 # * Redistributions of source code must retain the above copyright
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9 # notice, this list of conditions and the following disclaimer.
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10 # * Redistributions in binary form must reproduce the above copyright
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11 # notice, this list of conditions and the following disclaimer in
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12 # the documentation and/or other materials provided with the
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13 # distribution.
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14 # * Neither the name of Intel Corporation nor the names of its
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15 # contributors may be used to endorse or promote products derived
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16 # from this software without specific prior written permission.
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17 #
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18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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22 # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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23 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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24 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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25 # OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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26 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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27 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
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28 # WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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29 # POSSIBILITY OF SUCH DAMAGE.
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30 #
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31 # *********************************************************************
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32 #
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33 # PLEASE NOTE: This file is a downstream copy of a file mainitained in
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34 # a repository at cilkplus.org. Changes made to this file that are not
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35 # submitted through the contribution process detailed at
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36 # http://www.cilkplus.org/submit-cilk-contribution will be lost the next
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37 # time that a new version is released. Changes only submitted to the
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38 # GNU compiler collection or posted to the git repository at
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39 # https://bitbucket.org/intelcilkruntime/intel-cilk-runtime.git are
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40 # not tracked.
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41 #
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42 # We welcome your contributions to this open source project. Thank you
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43 # for your assistance in helping us improve Cilk Plus.
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44
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45 AC_INIT([Cilk Runtime Library], [2.0], [cilk@intel.com])
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46 AC_PREREQ([2.64])
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47
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48 # Needed to define ${target}. Needs to be very early to avoid annoying
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49 # warning about calling AC_ARG_PROGRAM before AC_CANONICAL_SYSTEM
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50 AC_CANONICAL_SYSTEM
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51 target_alias=${target_alias-$host_alias}
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52 AC_SUBST(target_alias)
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53
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54 AM_INIT_AUTOMAKE(foreign no-dist)
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55
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56 AM_MAINTAINER_MODE
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57
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58 AM_ENABLE_MULTILIB(, ..)
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59
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60 # Test for GNU extensions. Will define _GNU_SOURCE if they're available
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61 AC_USE_SYSTEM_EXTENSIONS
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62
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63 # Build a DLL on Windows
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64 # AC_LIBTOOL_WIN32_DLL
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65 AC_PROG_CC
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66 AC_PROG_CXX
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67 # AC_PROG_LIBTOOL
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68 # AC_CONFIG_MACRO_DIR([..])
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69 AC_CONFIG_FILES([Makefile libcilkrts.spec])
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70 AC_FUNC_ALLOCA
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71
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72 # Check for dl functions
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73 AC_CHECK_LIB(dl, dladdr,
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74 [AC_DEFINE(HAVE_DLADDR, 1, [Define if you have dladdr()])])
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75
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76 # Check whether the target supports protected visibility.
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77 save_CFLAGS="$CFLAGS"
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78 CFLAGS="$CFLAGS -Werror"
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79 AC_TRY_COMPILE([void __attribute__((visibility("protected"))) foo(void) { }],
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80 [], libcilkrts_cv_have_attribute_visibility=yes,
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81 libcilkrts_cv_have_attribute_visibility=no)
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82 CFLAGS="$save_CFLAGS"
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83 if test $libcilkrts_cv_have_attribute_visibility = yes; then
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84 AC_DEFINE(HAVE_ATTRIBUTE_VISIBILITY, 1,
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85 [Define to 1 if the target supports __attribute__((visibility(...))).])
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86 fi
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87
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88 # Get target configury.
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89 . ${srcdir}/configure.tgt
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90 if test -n "$UNSUPPORTED"; then
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91 AC_MSG_ERROR([Configuration ${target} is unsupported.])
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92 fi
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93
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94 if test "${multilib}" = "yes"; then
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95 multilib_arg="--enable-multilib"
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96 else
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97 multilib_arg=
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98 fi
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99
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100 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
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101 AC_ARG_ENABLE([version-specific-runtime-libs],
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102 AC_HELP_STRING([--enable-version-specific-runtime-libs],
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103 [Specify that runtime libraries should be installed in a compi
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104 ler-specific directory]),
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105 [case "$enableval" in
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106 yes) enable_version_specific_runtime_libs=yes ;;
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107 no) enable_version_specific_runtime_libs=no ;;
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108 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs
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109 ]);;
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110 esac],
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111 [enable_version_specific_runtime_libs=no])
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112 AC_MSG_RESULT($enable_version_specific_runtime_libs)
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113
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114
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115 # Calculate toolexeclibdir
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116 # Also toolexecdir, though it's only used in toolexeclibdir
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117 case ${enable_version_specific_runtime_libs} in
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118 yes)
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119 # Need the gcc compiler version to know where to install libraries
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120 # and header files if --enable-version-specific-runtime-libs option
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121 # is selected.
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122 toolexecdir='$(libdir)/gcc/$(target_alias)'
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123 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
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124 ;;
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125 no)
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126 if test -n "$with_cross_host" &&
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127 test x"$with_cross_host" != x"no"; then
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128 # Install a library built with a cross compiler in tooldir, not libdir.
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129 toolexecdir='$(exec_prefix)/$(target_alias)'
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130 toolexeclibdir='$(toolexecdir)/lib'
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131 else
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132 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
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133 toolexeclibdir='$(libdir)'
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134 fi
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135 multi_os_directory=`$CC -print-multi-os-directory`
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136 case $multi_os_directory in
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137 .) ;; # Avoid trailing /.
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138 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
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139 esac
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140 ;;
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141 esac
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142
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143 # Set config_dir based on the target. config_dir specifies where to get
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144 # target-specific files. The generic implementation is incomplete, but
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145 # contains information on what's needed
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146 case "${target}" in
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147
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148 i?86-*-* | x86_64-*-*)
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149 config_dir="x86"
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150 ;;
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151
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152 arm-*-*)
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153 config_dir="arm"
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154 ;;
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155
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156 sparc*-*-*)
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157 config_dir="sparc"
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158 ;;
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159
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160 *)
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161 config_dir="generic"
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162 ;;
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163
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164 esac
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165 AC_SUBST(config_dir)
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166
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167 # We have linker scripts for appropriate operating systems
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168 linux_linker_script=no
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169 case "${host}" in
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170 *-*-linux*)
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171 linux_linker_script=yes
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172 ;;
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173 esac
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174 AM_CONDITIONAL(LINUX_LINKER_SCRIPT, test "$linux_linker_script" = "yes")
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175
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176 mac_linker_script=no
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177 case "${host}" in
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178 *-*-apple*)
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179 mac_linker_script=yes
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180 ;;
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181 esac
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182 AM_CONDITIONAL(MAC_LINKER_SCRIPT, test "$mac_linker_script" = "yes")
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183
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184 AC_LIBTOOL_DLOPEN
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185 AM_PROG_LIBTOOL
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186 AC_SUBST(toolexecdir)
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187 AC_SUBST(toolexeclibdir)
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188
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189 AC_SUBST(lt_cv_dlopen_libs)
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190
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191 # Check to see if -pthread or -lpthread is needed. Prefer the former.
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192 # Note that the CILK_SELF_SPEC in gcc.c may force -pthread.
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193 # In case the pthread.h system header is not found, this test will fail.
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194 XCFLAGS=""
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195 XLDFLAGS=""
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196 CFLAGS="$CFLAGS -pthread"
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197 AC_LINK_IFELSE(
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198 [AC_LANG_PROGRAM(
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199 [#include <pthread.h>
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200 void *g(void *d) { return NULL; }],
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201 [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
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202 [XCFLAGS=" -Wc,-pthread"],
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203 [CFLAGS="$save_CFLAGS" LIBS="-lpthread $LIBS"
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204 AC_LINK_IFELSE(
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205 [AC_LANG_PROGRAM(
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206 [#include <pthread.h>
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207 void *g(void *d) { return NULL; }],
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208 [pthread_t t; pthread_create(&t,NULL,g,NULL);])],
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209 [],
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210 [AC_MSG_ERROR([Pthreads are required to build libcilkrts])])])
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211
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212 # Check for pthread_{,attr_}[sg]etaffinity_np.
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213 AC_LINK_IFELSE(
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214 [AC_LANG_PROGRAM(
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215 [#include <pthread.h>],
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216 [cpu_set_t cpuset;
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217 pthread_attr_t attr;
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218 pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
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219 if (CPU_ISSET (0, &cpuset))
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220 CPU_SET (1, &cpuset);
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221 else
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222 CPU_ZERO (&cpuset);
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223 pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset);
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224 pthread_attr_init (&attr);
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225 pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);
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226 pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])],
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227 AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1,
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228 [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.]))
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229
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230 # Every c++ lib is linking by default with -nostdlib, which leads to the
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231 # fact, that proper pthread library will not be given at link time. We have
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232 # to hard-code that.
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233 case "${target}" in
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234
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235 *android*)
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236 XLDFLAGS="$XLDFLAGS -lc"
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237 ;;
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238 *)
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239 XLDFLAGS="$XLDFLAGS -lpthread"
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240 ;;
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241
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242 esac
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243
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244 AC_SUBST(XCFLAGS)
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245 AC_SUBST(XLDFLAGS)
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246
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247 CFLAGS="$save_CFLAGS"
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248
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249 if test $enable_shared = yes; then
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250 link_cilkrts="-lcilkrts %{static: $LIBS}"
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251 else
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252 link_cilkrts="-lcilkrts $LIBS"
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253 fi
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254 AC_SUBST(link_cilkrts)
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255
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256 # Determine what GCC version number to use in filesystem paths.
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257 GCC_BASE_VER
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258
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259 # Must be last
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260 AC_OUTPUT
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