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 )
  73
  74 # ISL_REQUESTED (ACTION-IF-REQUESTED, ACTION-IF-NOT)
  75 # ----------------------------------------------------
  76 # Provide actions for failed ISL detection.
  77 AC_DEFUN([ISL_REQUESTED],
  78 [
  79   AC_REQUIRE([ISL_INIT_FLAGS])
  80
  81   if test "x${with_isl}" = xno; then
  82     $2
  83   elif test "x${with_isl}" != x \
  84     || test "x${with_isl_include}" != x \
  85     || test "x${with_isl_lib}" != x ; then
  86     $1
  87   else
  88     $2
  89   fi
  90 ]
  91 )
  92
  93 # _ISL_CHECK_CT_PROG(MAJOR, MINOR)
  94 # --------------------------------------------
  95 # Helper for verifying ISL compile time version.
  96 m4_define([_ISL_CHECK_CT_PROG],[AC_LANG_PROGRAM(
  97   [#include <isl/version.h>
  98    #include <string.h>],
  99   [if (strncmp (isl_version (), "isl-$1.$2", strlen ("isl-$1.$2")) != 0)
 100      return 1;
 101    ])])
 102
 103 # ISL_CHECK_VERSION ISL_CHECK_VERSION (MAJOR, MINOR)
 104 # ----------------------------------------------------------------
 105 # Test the found ISL to be exact of version MAJOR.MINOR and at least
 106 # REVISION.
 107 AC_DEFUN([ISL_CHECK_VERSION],
 108 [
 109   if test "${ENABLE_ISL_CHECK}" = yes ; then
 110     _isl_saved_CFLAGS=$CFLAGS
 111     _isl_saved_LDFLAGS=$LDFLAGS
 112     _isl_saved_LIBS=$LIBS
 113
 114     CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
 115     LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
 116     LIBS="${_isl_saved_LIBS} -lisl"
 117
 118     AC_MSG_CHECKING([for version $1.$2 of ISL])
 119     AC_RUN_IFELSE([_ISL_CHECK_CT_PROG($1,$2)],
 120         [gcc_cv_isl=yes],
 121         [gcc_cv_isl=no],
 122         [gcc_cv_isl=yes])
 123     AC_MSG_RESULT([$gcc_cv_isl])
 124
 125     CFLAGS=$_isl_saved_CFLAGS
 126     LDFLAGS=$_isl_saved_LDFLAGS
 127     LIBS=$_isl_saved_LIBS
 128   fi
 129 ]
 130 )
 131
 132 # ISL_IF_FAILED (ACTION-IF-FAILED)
 133 # ----------------------------------
 134 # Executes ACTION-IF-FAILED, if GRAPHITE was requested and
 135 # the checks failed.
 136 AC_DEFUN([ISL_IF_FAILED],
 137 [
 138   ISL_REQUESTED([graphite_requested=yes], [graphite_requested=no])
 139
 140   if test "${gcc_cv_isl}" = no ; then
 141     isllibs=
 142     islinc=
 143   fi
 144
 145   if test "${graphite_requested}" = yes \
 146     && test "x${isllibs}" = x \
 147     && test "x${islinc}" = x ; then
 148     $1
 149   fi
 150 ]
 151 )