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1 # This file is part of GCC.
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2 #
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3 # GCC is free software; you can redistribute it and/or modify it under
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4 # the terms of the GNU General Public License as published by the Free
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5 # Software Foundation; either version 3, or (at your option) any later
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6 # version.
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7 #
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8 # GCC is distributed in the hope that it will be useful, but WITHOUT
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9 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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10 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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11 # for more details.
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12 #
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13 # You should have received a copy of the GNU General Public License
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14 # along with GCC; see the file COPYING3. If not see
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15 # <http://www.gnu.org/licenses/>.
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16 #
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17 # Contributed by Richard Guenther <rguenther@suse.de>
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18 # Based on cloog.m4
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19
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20 # ISL_INIT_FLAGS ()
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21 # -------------------------
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22 # Provide configure switches for isl support.
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23 # Initialize isllibs/islinc according to the user input.
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24 AC_DEFUN([ISL_INIT_FLAGS],
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25 [
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26 AC_ARG_WITH([isl-include],
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27 [AS_HELP_STRING(
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28 [--with-isl-include=PATH],
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29 [Specify directory for installed isl include files])])
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30 AC_ARG_WITH([isl-lib],
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31 [AS_HELP_STRING(
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32 [--with-isl-lib=PATH],
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33 [Specify the directory for the installed isl library])])
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34
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35 AC_ARG_ENABLE(isl-version-check,
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36 [AS_HELP_STRING(
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37 [--disable-isl-version-check],
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38 [disable check for isl version])],
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39 ENABLE_ISL_CHECK=$enableval,
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40 ENABLE_ISL_CHECK=yes)
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41
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42 # Initialize isllibs and islinc.
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43 case $with_isl in
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44 no)
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45 isllibs=
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46 islinc=
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47 ;;
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48 "" | yes)
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49 ;;
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50 *)
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51 isllibs="-L$with_isl/lib"
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52 islinc="-I$with_isl/include"
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53 ;;
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54 esac
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55 if test "x${with_isl_include}" != x ; then
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56 islinc="-I$with_isl_include"
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57 fi
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58 if test "x${with_isl_lib}" != x; then
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59 isllibs="-L$with_isl_lib"
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60 fi
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61 dnl If no --with-isl flag was specified and there is in-tree isl
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62 dnl source, set up flags to use that and skip any version tests
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63 dnl as we cannot run them before building isl.
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64 if test "x${islinc}" = x && test "x${isllibs}" = x \
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65 && test -d ${srcdir}/isl; then
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66 isllibs='-L$$r/$(HOST_SUBDIR)/isl/'"$lt_cv_objdir"' '
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67 islinc='-I$$r/$(HOST_SUBDIR)/isl/include -I$$s/isl/include'
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68 ENABLE_ISL_CHECK=no
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69 AC_MSG_WARN([using in-tree isl, disabling version check])
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70 fi
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71
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72 isllibs="${isllibs} -lisl"
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73 ]
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74 )
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75
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76 # ISL_REQUESTED (ACTION-IF-REQUESTED, ACTION-IF-NOT)
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77 # ----------------------------------------------------
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78 # Provide actions for failed isl detection.
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79 AC_DEFUN([ISL_REQUESTED],
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80 [
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81 AC_REQUIRE([ISL_INIT_FLAGS])
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82
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83 if test "x${with_isl}" = xno; then
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84 $2
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85 elif test "x${with_isl}" != x \
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86 || test "x${with_isl_include}" != x \
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87 || test "x${with_isl_lib}" != x ; then
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88 $1
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89 else
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90 $2
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91 fi
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92 ]
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93 )
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94
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95 # ISL_CHECK_VERSION ISL_CHECK_VERSION ()
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96 # ----------------------------------------------------------------
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97 # Test whether isl contains functionality added to the minimum expected version.
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98 AC_DEFUN([ISL_CHECK_VERSION],
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99 [
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100 if test "${ENABLE_ISL_CHECK}" = yes ; then
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101 _isl_saved_CFLAGS=$CFLAGS
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102 _isl_saved_LDFLAGS=$LDFLAGS
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103 _isl_saved_LIBS=$LIBS
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104
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105 CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
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106 LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs} ${gmplibs}"
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107 LIBS="${_isl_saved_LIBS} -lisl -lgmp"
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108
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109 AC_MSG_CHECKING([for isl 0.15 or later])
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110 AC_TRY_LINK([#include <isl/schedule.h>],
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111 [isl_options_set_schedule_serialize_sccs (NULL, 0);],
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112 [gcc_cv_isl=yes],
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113 [gcc_cv_isl=no])
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114 AC_MSG_RESULT([$gcc_cv_isl])
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115
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116 if test "${gcc_cv_isl}" = no ; then
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117 AC_MSG_RESULT([required isl version is 0.15 or later])
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118 fi
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119
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120 CFLAGS=$_isl_saved_CFLAGS
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121 LDFLAGS=$_isl_saved_LDFLAGS
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122 LIBS=$_isl_saved_LIBS
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123 fi
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124 ]
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125 )
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126
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127 # ISL_IF_FAILED (ACTION-IF-FAILED)
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128 # ----------------------------------
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129 # Executes ACTION-IF-FAILED, if GRAPHITE was requested and
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130 # the checks failed.
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131 AC_DEFUN([ISL_IF_FAILED],
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132 [
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133 ISL_REQUESTED([graphite_requested=yes], [graphite_requested=no])
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134
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135 if test "${gcc_cv_isl}" = no ; then
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136 isllibs=
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137 islinc=
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138 fi
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139
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140 if test "${graphite_requested}" = yes \
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141 && test "x${isllibs}" = x \
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142 && test "x${islinc}" = x ; then
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143 $1
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144 fi
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145 ]
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146 )
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