source: vis_dev/glu-2.3/configure.in @ 38

dnl     Run autoconf on this file to produce the system configuration
dnl     script "configure"

# FileName      [ configure.in ]
#
# PackageName   [ glu ]
#
# Synopsis      [ System configuration script for autoconf ]
#
# SeeAlso       [ Makefile.in ]
#
# Author        [ Stephen Edwards <sedwards@eecs.berkeley.edu> ]
#
# Copyright     [
#  Copyright (c) 1994-1996 The Regents of the Univ. of California.
#  All rights reserved.
#
#  Permission is hereby granted, without written agreement and without license
#  or royalty fees, to use, copy, modify, and distribute this software and its
#  documentation for any purpose, provided that the above copyright notice and
#  the following two paragraphs appear in all copies of this software.
#
#  IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
#  DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
#  OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
#  CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#  THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
#  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
#  FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN
#  "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE
#  MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#  ]
#
# Revision      [$Id: configure.in,v 1.50 2004/09/09 17:48:10 fabio Exp $]

# Require version 2.11 or above -- it checks to see if the C compiler
# actually works!

AC_PREREQ(2.11)

AC_INIT(src/array/array.c)

# Look for install.sh, config.guess, and config.sub in the "helpers" dir
AC_CONFIG_AUX_DIR(helpers)

AC_ARG_ENABLE(times-resolution, [  --enable-times-resolution=<hertz>
                          Set the resolution of the times() function (only
                          necessary for non-POSIX systems).],
        [AC_DEFINE_UNQUOTED(CLOCK_RESOLUTION,$enableval)],
        [AC_DEFINE_UNQUOTED(CLOCK_RESOLUTION,60)])

#----------------------------------------------------------------------
# Set local_srcdir
#----------------------------------------------------------------------
# Give the configurer a chance to set a different location for the GLU
# source.  When specified, "srcdir" points to "master" source, and
# "local_srcdir" points to the source under local development.

AC_SUBST(local_srcdir)
AC_ARG_WITH(local-srcdir,
[  --with-local-srcdir=<srcdir> Specify the root directory to search for
                          source for packages (the PKGS list).
                          Expects to find, e.g., <srcdir>/array/array.c],
[local_srcdir=$withval],
[local_srcdir=$srcdir])

AC_ARG_WITH(datasize,
[  --with-datasize=<size>  (Default: 67108864.) Specify maximum datasize in 
                          bytes for systems without working getrlimit.
                          The application may use this value to size some
                          data structures, but may still try to exceed it.],
[datasize=$withval],
[datasize=67108864])
AC_DEFINE_UNQUOTED(RLIMIT_DATA_DEFAULT,$datasize)

#----------------------------------------------------------------------
# Checks for programs we need
#----------------------------------------------------------------------

AC_PATH_PROG(AR, ar, ar)
AC_PROG_RANLIB

AC_CANONICAL_SYSTEM
AC_SUBST(target)

# Determine the name of the C compiler we're going to use

AC_ARG_ENABLE(gcc,
  [  --enable-gcc            Allow use of gcc if available],
  [gcc_ok=$enableval], [gcc_ok=no])

# We cannot set CC=g++ directly because many configuration test programs
# do not compile with g++.  Hence, when the user specifies --enable-gcc=g++,
# we set CC=gcc during configuration, and then CC=g++ at the end.
# The same applies to icpc and icc.
if test "$gcc_ok" != no; then
  case "$gcc_ok" in
    yes | g++)
      CC=gcc ;;
    icpc)
      CC=icc ;;
    *)
      CC=$gcc_ok
  esac
else
  if test -z "$CC" ; then
    # Balakrishna Kumthekar <kumtheka@colorado.edu>
    # As we do not support cc on RS6000, Cygwin and SunOS.
    case "$target" in
    rs6000-ibm-aix* | *-pc-cygwin32 | sparc-sun-sunos*)
      CC=gcc ;;
    *)
      CC=cc ;;
    esac
  fi
fi
AC_PROG_CC

# Icc fools AC_PROG_CC into believing it is gcc because it defines __GNUC__.
# To avoid this confusion we add the following test.
if test "$CC" = icc; then
  GCC=
fi

AC_ARG_ENABLE(64,
  [  --enable-64             Use 64-bit pointers on 64-bit Alpha machines],
  [use_sixty_four=$enableval], [use_sixty_four=no])

# Gcc does not support 32-bit pointers on the Alphas.
if test "$gcc_ok" != no; then
  use_sixty_four=yes
fi


# Balakrisha Kumthekar <kumtheka@colorado.edu>: making a special case
# for ultrix install, since it's annoying about setting groupids.
case "$target" in
  mips-dec-ultrix*)
    INSTALL="helpers/install-sh -c"
    INSTALL_PROGRAM="\${INSTALL}"
    INSTALL_DATA="\${INSTALL} -m 644";;

  *)
  AC_PROG_INSTALL ;;
esac

# Determine the compiler flags to use

DEBUG_CFLAGS="-g"
DEBUG_LDFLAGS=""

case "$target" in

  i686-pc-linux-gnu)
        # Linux with Intel compiler
        # -ansi: ANSI C conformance
        # -ip: inter-procedural optimization
        OPTIMIZE_CFLAGS="-g -O3 -ansi -ip"
        ;;

  sparc-sun-solaris* | i386-pc-solaris*)
        # Sparc and X86 Solaris:
        # -xO3: Highest safe level of optimization
        # -native: Optimize for the native processor (if supported)
        # -dalign: Generate double-word load/store for performance
        #          (only for SPARC)
        # and other arcane compilation flags.
        if test "$GCC" = yes; then
          OPTIMIZE_CFLAGS="-O"
        else
          case "$target" in
            sparc-sun-solaris*)
              ALIGN=" -dalign" ;;
            *)
              ALIGN="" ;;
          esac
          AC_MSG_CHECKING([for -native])
          CFLAGS="-xO3 -native$ALIGN"
          AC_CACHE_VAL(ac_cv_have_native,
          [ AC_TRY_RUN([
          main(){exit(0);}
          ],ac_cv_have_native=yes,ac_cv_have_native=no,ac_cv_have_native=no)])
          if test $ac_cv_have_native = yes ; then
            AC_MSG_RESULT(working)
            OPTIMIZE_CFLAGS="-xO3 -native$ALIGN"
          else
            AC_MSG_RESULT(broken)
            AC_MSG_CHECKING([for fallback optimization flags])
            CFLAGS="-xO3 -fns -fsimple=2$ALIGN -ftrap=%none -xlibmil"
            AC_CACHE_VAL(ac_cv_have_fallback,
            [ AC_TRY_RUN([
            main(){exit(0);}
            ],ac_cv_have_fallback=yes,ac_cv_have_fallback=no,ac_cv_have_fallback=no)])
            if test $ac_cv_have_fallback = yes ; then
              AC_MSG_RESULT(working)
              OPTIMIZE_CFLAGS="-xO3 -fns -fsimple=2$ALIGN -ftrap=%none -xlibmil"
            else
              AC_MSG_RESULT(broken)
              OPTIMIZE_CFLAGS="-O"
            fi
          fi
        fi
        ;;

  mips-dec-ultrix*)
        # MIPS-based DECstations running Ultrix:
        # -std1: Produce non-ANSI code warnings, and define __STDC__
        # -O: Use the global "ucode" optimizer
        # -Olimit 5000: Don't optimize routines bigger than 5000 basic blocks
        OPTIMIZE_CFLAGS="-std1 -O -Olimit 5000" ;;
   
  alpha-dec-osf*)
        # DEC Alpha running OSF:

        # 64-bit mode:
        # -g3: Produce symbol table information for optimized code
        # -O4: Enable every optimization
        # -std: Enforce the ANSI standard with extensions, define __STDC__
        # -ieee_with_no_inexact: Disable (potentially slow) signaling
        #   for inexact floating-point results
        # -tune host: Tune instructions for the compilation host machine
        OPTIMIZE_CFLAGS="-g3 -O4 -std -ieee_with_no_inexact -tune host"
        DEBUG_CFLAGS="-g -std -ieee_with_no_inexact"

        # -non_shared: Do not use shared libraries
        # -om: Generate an OMAGIC file for the om optimizer
        OPTIMIZE_LDFLAGS="-non_shared"

        if test "$use_sixty_four" = "no"; then
          # 32-bit mode:
          # -xtaso: Make the compiler respond to #pragma pointer_size directives
          OPTIMIZE_CFLAGS="$OPTIMIZE_CFLAGS -xtaso"
          DEBUG_CFLAGS="$DEBUG_CFLAGS -xtaso"

          # -taso: Load the executable into the lower 31-bit address space
          OPTIMIZE_LDFLAGS="$OPTIMIZE_LDFLAGS -om -taso"
          DEBUG_LDFLAGS="$DEBUG_LDFLAGS -taso"

          AC_DEFINE(SIZEOF_VOID_P, 4)
          ac_sizeof_voidp=4
        fi
        ;;

  hppa*-*-hpux*)
        # HP running HPUX
        # -Aa: Behave as an ANSI compiler
        # -D_HPUX_SOURCE: Include "HP-specific" symbols in the header
        #   files (e.g., this means sys/resource.h has struct rusage)
        OPTIMIZE_CFLAGS="-O -Aa -D_HPUX_SOURCE"
        DEBUG_CFLAGS="-g -Aa -D_HPUX_SOURCE" ;;

     *)
        # Other systems:
        OPTIMIZE_CFLAGS="-O" ;;

esac

if test "$GCC" = yes; then
  case "$target" in
    i686-pc-linux-gnu | i386-pc-solaris* | i386-pc-cygwin32 | i386-*-freebsd*)
      AC_MSG_CHECKING([for -mcpu and -malign compiler options])
      CFLAGS="-g -O6 -mcpu=pentiumpro -malign-double"
      AC_TRY_COMPILE(,,ac_have_mcpu=yes,ac_have_mcpu=no)
      if test "$ac_have_mcpu" = yes; then
        AC_MSG_RESULT(working)
        OPTIMIZE_CFLAGS="-g -O6 -mcpu=pentiumpro -malign-double"
      else
        AC_MSG_RESULT(broken)
        OPTIMIZE_CFLAGS="-g -O3"
      fi
      ;;
    sparc-sun-solaris*)
      AC_MSG_CHECKING([for -mtune compiler option])
      CFLAGS="-g -O6 -mtune=ultrasparc"
      AC_TRY_COMPILE(,,ac_have_mtune=yes,ac_have_mtune=no)
      if test "$ac_have_mtune" = yes; then
        AC_MSG_RESULT(working)
        OPTIMIZE_CFLAGS="-g -O6 -mtune=ultrasparc"
      else
        AC_MSG_RESULT(not working)
        OPTIMIZE_CFLAGS="-g -O3"
      fi
      ;;
    *)
      OPTIMIZE_CFLAGS="-g -O3"
      ;;
  esac
  OPTIMIZE_LDFLAGS=""
  DEBUG_CFLAGS="-g"
  DEBUG_LDFLAGS=""
fi

AC_ARG_WITH(comp-mode,
[  --with-comp-mode=<mode> Specify a special compilation mode:
                          optimize (the default): Produce optimized
                                code, with symbol table information
                                if supported on the platform/compiler,
                                and without asserts.
                          debug: Produce unoptimized code with symbol table
                                information and asserts enabled
                          purify: Unoptimized code linked with purify
                          quantify: Optimized code without asserts
                                linked with quantify],
[comp_mode=$withval],
[comp_mode=optimize])
AC_SUBST(LINKER)
AC_SUBST(PLINKER)

LINKER="$CC"

case "$comp_mode" in
  debug)
       CFLAGS="$DEBUG_CFLAGS"
       LDFLAGS="$DEBUG_LDFLAGS" ;;
  purify)
       CFLAGS="$DEBUG_CFLAGS"
       LDFLAGS="$DEBUG_LDFLAGS"
       AC_DEFINE(PURIFY)
       LINKER="purify -cache-dir=/tmp $CC"
       PLINKER="purify -log-file=./purify.log -cachedir=/tmp $CC" ;;
  quantify)
       CFLAGS="$OPTIMIZE_CFLAGS"
       LDFLAGS="$OPTIMIZE_LDFLAGS"
       AC_DEFINE(QUANTIFY)
       AC_DEFINE(NDEBUG)
       LINKER="quantify $CC" ;;
  optimize | *)
       CFLAGS="$OPTIMIZE_CFLAGS"
       LDFLAGS="$OPTIMIZE_LDFLAGS"
       AC_DEFINE(NDEBUG) ;;
esac

#----------------------------------------------------------------------
# Checks for libraries
#----------------------------------------------------------------------

# Define STDC_HEADERS if the system has ANSI C header files
AC_HEADER_STDC

# Define HAVE_SYS_WAIT_H if sys/wait.h exists and is POSIX-compliant
AC_HEADER_SYS_WAIT

# Check for these system header files
AC_CHECK_HEADERS(sys/file.h sys/stat.h unistd.h errno.h assert.h sys/wait.h pwd.h sys/types.h sys/times.h sys/time.h sys/resource.h)

# Check how the compiler handles functions with variable argument lists
#
# If there's a <stdarg.h>, this is probably an ANSI compiler and the "..."
# notation will probably work.  If not, there may be another version
# called <varargs.h>, that uses an argument of the type "va_alist"
# (see, e.g., Ultrix, Digital Unix)
AC_CHECK_HEADERS(stdarg.h varargs.h)

#----------------------------------------------------------------------
# Checks for typedefs, structures, and compiler characteristics.
#----------------------------------------------------------------------

# Check to see if the compiler understands "const"
# #define it empty otherwise
AC_C_CONST

# Check the size of pointers, longs and ints

if test -z "$ac_sizeof_voidp"; then
  AC_CHECK_SIZEOF(void *,4)
fi
AC_CHECK_SIZEOF(int,4)
AC_CHECK_SIZEOF(long,4)

# Check for a working implementation of IEEE 754 floating point
# Specifically, check for correct treatment of +Infinity
AC_MSG_CHECKING([for +Infinity (IEEE 754 floating point)])
AC_CACHE_VAL(ac_cv_have_ieee_754,
[ AC_TRY_RUN([
#include <math.h>
main()
{
    if (HUGE_VAL != HUGE_VAL * 3 || HUGE_VAL != HUGE_VAL / 3) exit(1);
    exit(0);
}
],ac_cv_have_ieee_754=yes,ac_cv_have_ieee_754=no,ac_cv_have_ieee_754=no)])
if test $ac_cv_have_ieee_754 = yes ; then
  AC_MSG_RESULT(working)
  AC_DEFINE(HAVE_IEEE_754)
else
  AC_MSG_RESULT(broken)
fi

# Check the size of the virtual memory page
#
# The Cal BDD package uses this
#
# This compiles and runs a small program that gets the pagesize from
# the "getpagesize()" UNIX system function.

AC_MSG_CHECKING([the size of the virtual memory system's page])
AC_CACHE_VAL(ac_cv_sys_pagesize,
[ AC_TRY_RUN([

#include <stdio.h>
#ifdef HAVE_UNISTD_H
#  include <unistd.h>
#endif

main() {
  FILE * f = fopen( "conftestval", "w" );
  if ( f == NULL ) exit(1);
  fprintf( f, "%d\n", (int) getpagesize() );
  exit(0);
}
], ac_cv_sys_pagesize=`cat conftestval`, ac_cv_sys_pagesize=unknown, ac_cv_sys_pagesize=unknown)])
case "$ac_cv_sys_pagesize" in
   512)
     AC_MSG_RESULT(512)
     PAGE_SIZE=512
     LG_PAGE_SIZE=9 ;;
   1024)
     AC_MSG_RESULT(1K)
     PAGE_SIZE=1024
     LG_PAGE_SIZE=10 ;;
   2048)
     AC_MSG_RESULT(2K)
     PAGE_SIZE=2048
     LG_PAGE_SIZE=11 ;;
   4096)
     AC_MSG_RESULT(4K)
     PAGE_SIZE=4096
     LG_PAGE_SIZE=12 ;;
   8192)
     AC_MSG_RESULT(8K)
     PAGE_SIZE=8192
     LG_PAGE_SIZE=13 ;;
   16384)
     AC_MSG_RESULT(16K)
     PAGE_SIZE=16384
     LG_PAGE_SIZE=14 ;;
   32768)
     AC_MSG_RESULT(32K)
     PAGE_SIZE=32768
     LG_PAGE_SIZE=15 ;;
   65536)
     AC_MSG_RESULT(64K)
     PAGE_SIZE=65536
     LG_PAGE_SIZE=16 ;;
   unknown)
     AC_MSG_RESULT([could not determine -- assuming 4K])
     PAGE_SIZE=4096
     LG_PAGE_SIZE=12 ;;
   *)
     AC_MSG_RESULT(Invalid page size $ac_cv_sys_pagesize -- assuming 4K)
     PAGE_SIZE=4096
     LG_PAGE_SIZE=12 ;;
esac
AC_DEFINE_UNQUOTED(PAGE_SIZE, $PAGE_SIZE)
AC_DEFINE_UNQUOTED(LG_PAGE_SIZE, $LG_PAGE_SIZE)

# Check the endianness
#
# This compiles and runs a small program that gets endian type.

AC_MSG_CHECKING([endian type])
AC_CACHE_VAL(ac_cv_sys_endian,
[ AC_TRY_RUN([

#include <stdio.h>
#ifdef HAVE_UNISTD_H
#  include <unistd.h>
#endif

typedef struct EpDoubleStruct {
  union {
    double      value;
    struct IeeeDoubleStruct {   /* LITTLE_ENDIAN */
      unsigned int mantissa1: 32;
      unsigned int mantissa0: 20;
      unsigned int exponent: 11;
      unsigned int sign: 1;
    } bits;
  } type;
  int           exponent;
} EpDouble;

main()
{
  EpDouble      epd;
  FILE          *f = fopen("conftestval", "w" );

  if (!f) exit(1);
  epd.type.value = -1.0;
  if (epd.type.bits.sign == 1 && epd.type.bits.exponent == 1023 &&
      epd.type.bits.mantissa0 == 0 && epd.type.bits.mantissa1 == 0)
    fprintf(f, "0\n");
  else
    fprintf(f, "1\n");
  fclose(f);
  exit(0);
}
], ac_cv_sys_endian=`cat conftestval`, ac_cv_sys_endian=unknown, ac_cv_sys_endian=unknown)])
case "$ac_cv_sys_endian" in
   0)
     AC_MSG_RESULT(LITTLE_ENDIAN)
     AC_DEFINE_UNQUOTED(EPD_LITTLE_ENDIAN, 1) ;;
   1)
     AC_MSG_RESULT(BIG_ENDIAN)
     AC_DEFINE_UNQUOTED(EPD_BIG_ENDIAN, 1) ;;
   *)
     AC_MSG_RESULT(Invalid endian size $ac_cv_sys_endian -- assuming LITTLE_ENDIAN)
     AC_DEFINE_UNQUOTED(EPD_LITTLE_ENDIAN, 1) ;;
esac

#----------------------------------------------------------------------
# Checks for library functions.
#----------------------------------------------------------------------

# Add memcmp.o to LIBOBJS if the memcmp() function is unavailable or broken
AC_FUNC_MEMCMP

# Define RETSIGTYPE to be void or int depending on the expected return type of
# a signal handler
AC_TYPE_SIGNAL

# Define HAVE_STRCOLL if the strcoll function exists and works
AC_FUNC_STRCOLL

# Define HAVE_VFORK_H if vfork.h is present, otherwise define "vfork" to be
# "fork"
AC_FUNC_VFORK

# Look for these functions and define HAVE_... for each if present
AC_CHECK_FUNCS(sysconf gethostname strcspn strerror strspn strstr getenv strchr getrlimit getrusage valloc)

#----------------------------------------------------------------------
# Create the Makefile from Makefile.in
#----------------------------------------------------------------------
if test "$gcc_ok" = "g++"; then
  CC=$gcc_ok
fi
AC_OUTPUT(Makefile)