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|
dnl Process this file with autoconf to produce a configure script.
AC_INIT()
mpfr_version=`cat $srcdir/VERSION`
AM_INIT_AUTOMAKE(mpfr, $mpfr_version, [no-define])
AC_ARG_WITH(gmp_include, [ --with-gmp-include=DIR GMP include directory ], with_gmp_include=$withval)
AC_ARG_WITH(gmp_lib, [ --with-gmp-lib=DIR GMP lib directory ], with_gmp_lib=$withval)
AC_ARG_WITH(gmp, [ --with-gmp=DIR GMP directory ], with_gmp_include=$withval/include with_gmp_lib=$withval/lib)
AC_ARG_WITH(irix64, [ --with-irix64=on/off Irix 32/64 bits support ], with_irix64=$withval, with_irix64=off)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_RANLIB
AC_CHECK_OS
AC_CHECK_MACHTYPE
dnl If compiler is gcc, then use some specific flags.
if test -n "$GCC"; then
CFLAGS="-g -O2 -Wall -Wmissing-prototypes $CFLAGS"
fi
MISCFLAGS='$<'
dnl Set the OS-dependent flags.
case $OS_TYPE in
HP-UX*)
AC_CHECK_LIB(M, main)
AC_DEFINE(hpux)
LDFLAGS="$LDFLAGS -L/lib/pa1.1"
;;
SunOS*)
MISCFLAGS="trunc.c"
AC_CHECK_LIB(m, main)
;;
Linux*)
AC_CHECK_LIB(m, main)
if [[ "$MACHTYPE" = "alpha" ]]; then
CFLAGS="$CFLAGS -mfp-rounding-mode=d -mieee-with-inexact"
fi
;;
IRIX64)
AC_CHECK_LIB(m, main)
if [[ "$irix64" = "on" ]]; then
CFLAGS ="-mabi=64 $CFLAGS"
else
CFLAGS ="-mabi=n32 $CFLAGS"
fi
;;
OSF*)
AC_CHECK_LIB(m, main)
CFLAGS="$CFLAGS -mfp-rounding-mode=d -mieee-with-inexact -ffloat-store"
AC_DEFINE(__STDC__)
;;
*)
AC_CHECK_LIB(m, main)
;;
esac
AC_CHECK_HEADERS(fpu_control.h)
dnl Tests concerning the include directories.
AC_MSG_CHECKING(for gmp files)
if test -d "$with_gmp_include"; then
CPPFLAGS="$CPPFLAGS -I$with_gmp_include"
else
with_gmp_include=
fi
AC_TRY_COMPILE([
#include "gmp.h"
#include "gmp-impl.h"
#include "longlong.h"
], , AC_MSG_RESULT(yes),
[AC_MSG_RESULT(no)
AC_MSG_ERROR(gmp.h or gmp-impl.h or config.h or gmp-mparam.h or longlong.h may be missing ${with_gmp_include:+in $with_gmp_include})]
)
dnl Check BITS_PER_MP_LIMB and BYTES_PER_MP_LIMB
AC_MSG_CHECKING(for valid BITS_PER_MP_LIMB and BYTES_PER_MP_LIMB)
AC_TRY_RUN([
#include <limits.h>
#include "gmp.h"
#include "gmp-impl.h"
int main()
{
return BITS_PER_MP_LIMB == BYTES_PER_MP_LIMB * CHAR_BIT
&& sizeof(mp_limb_t) == BYTES_PER_MP_LIMB ? 0 : 1;
}
], AC_MSG_RESULT(yes),
[AC_MSG_RESULT(no)
dnl do not use the AC_MSG_ERROR macro because of message truncation...
{ echo "configure: error: BITS_PER_MP_LIMB and/or BYTES_PER_MP_LIMB are incorrect.
You probably need to change some of the GMP or MPFR compile options:
MPFR doesn't currently do as many architecture checks as GMP, so the
default target architecture may be different, hence the error." 1>&2
exit 1; }])
dnl Check random functions
AC_MSG_CHECKING(for rand48 functions)
AC_TRY_RUN([#include <stdlib.h>
int main() { long int l = lrand48 (); return 0; }],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RAND48)],
AC_MSG_RESULT(no),
AC_MSG_RESULT(no)
)
dnl Check for ISOC9X interface for rounding modes
AC_MSG_CHECKING(for fenv.h)
AC_TRY_CPP([#include <fenv.h>],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_FENV)],
AC_MSG_RESULT(no)
)
dnl Check whether 0/0, 1/0, -1/0 are valid expressions
AC_MSG_CHECKING(for 0/0 as a valid expression)
AC_TRY_RUN([#include <math.h>
int main() { double x = 0.0/0.0; exit (0); }],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INFS)],
AC_MSG_RESULT(no),
AC_MSG_RESULT(no)
)
dnl Check if denormalized numbers are supported
AC_MSG_CHECKING(for denormalized numbers)
AC_TRY_RUN([
#include <math.h>
#include <stdio.h>
int main() { double x = 2.22507385850720138309e-308;
fprintf (stderr, "%e\n", x / 2.0);
exit (2.0 * (x / 2.0) != x);}],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_DENORMS)],
AC_MSG_RESULT(no),
AC_MSG_RESULT(no)
)
dnl Check for extended precision
AC_MSG_CHECKING(for extended precision)
AC_TRY_RUN([
int main()
{
double c, d, dj;
int j;
c = 1.46484375e-3;
dj = 1.0;
for (j=0; j<54; j++) dj *= 0.5;
d = 0.75 + dj;
d /= 1 << 9;
exit (c == d);
}],
[AC_MSG_RESULT(yes)
CFLAGS="$CFLAGS -ffloat-store"
AC_DEFINE(USE_EXTENDED)],
AC_MSG_RESULT(no),
AC_MSG_RESULT(no)
)
AC_MY_LIBS($with_gmp_lib, gmp)
AC_SUBST(INCLUDES)
AC_SUBST(LDADD)
AC_SUBST(LDFLAGS)
AC_SUBST(CFLAGS)
AC_SUBST(MISCFLAGS)
AC_OUTPUT(Makefile tests/Makefile)
dnl NEWS README AUTHORS Changelog
|
