config/isl.m4

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