MPFR doesn't compile with GCC-4.7.0 on ia64

[jdemeyer]

The error is exactly the same as the one reported for MPIR at #12765 ("impossible reload").

The spkg below also fixes some other issues, and applies all official upstream patches published so far.

---

New spkg: http://boxen.math.washington.edu/home/leif/Sage/spkgs/mpfr-3.1.0.p1.spkg

md5sum: a21ea669c69350a3d192aba86b7ecbd6 mpfr-3.1.0.p1.spkg

mpfr-3.1.0.p1 (Leif Leonhardy, April 13th 2012)

• MPFR doesn't compile with GCC-4.7.0 on ia64 #12837: Work around GCC 4.7.0 bug on ia64 (Itanium), unfortunately by almost
  completely disabling optimization on that platform. (MPFR is also a pre-
  requisite for building the GCC spkg; after that has been built, MPFR will
  get rebuilt with normal optimization.)
• Use patch to apply patches.
• Apply all recent "official" upstream patches; the resulting MPFR version
  then is 3.1.0-p8.
• Properly quote the parameter to the configure option --libdir.
• Export CFLAGS! Previously MPFR would not even have used "its own" flags
  (extracted from config.status after configuring it with CC and CFLAGS
  unset) if CFLAGS, set in its spkg-install, weren't already exported.
  (Also export CPPFLAGS and LDFLAGS, to which $CFLAG64 is now also added
  if SAGE64 is yes.)
• Add $CFLAG64 to required CFLAGS if SAGE64=yes.
• Clean up the spkg; redirect all warnings and error messages to stderr; add
  some messages.

CC: @nexttime @jpflori @mwhansen

Component: packages: standard

Author: Leif Leonhardy

Reviewer: Volker Braun

Merged: sage-5.0.rc0

Issue created by migration from https://trac.sagemath.org/ticket/12837

[nexttime]

comment:2

For the record:

I'm currently also cleaning up the spkg; stay tuned...

[jdemeyer]

comment:3

leif, any progress on the MPFR package? If not, I'll provide a new spkg fixing the ia64 issue.

[nexttime]

comment:4

Replying to @jdemeyer:

leif, any progress on the MPFR package? If not, I'll provide a new spkg fixing the ia64 issue.

I just haven't announced it yet; cf. sage-release.

[nexttime]

comment:5

Oh, and there are still two "open" issues:

    if [ "$SAGE64" = yes ]; then
        if [ -z "$CFLAG64" ]; then
            CFLAG64=-m64
        fi
        echo "Building a 64-bit version of MPFR (using '$CFLAG64')."
        # XXX Shouldn't this be put into the *required* CFLAGS?
        default_cflags="$default_cflags $CFLAG64"
        CPPFLAGS="$CPPFLAGS $CFLAG64"
        LDFLAGS="$LDFLAGS $CFLAG64"
        # As MPFR doesn't have C++ files, we don't have to modify CXXFLAGS.
    fi

(I think I'll just change that.)

    # XXX What is the following supposed to achieve???
    # (GMP/MPIR is a prerequisite for MPFR, and we always build MPIR with
    # '--enable-gmpcompat', since MPFR and other packages won't build without
    # that anyway.) 
    if [ ! -f "$SAGE_LOCAL/include/gmp.h" ]; then
        SAGE_CONF_OPTS="$SAGE_CONF_OPTS --disable-static --enable-shared"
    fi

    if [ "$UNAME" = CYGWIN ]; then
        SAGE_CONF_OPTS="$SAGE_CONF_OPTS --disable-static --enable-shared"
    fi

(I feel a bit uncomfortable just removing the first if-block, since I have absolutely no idea why or how it did get there. The second if seems related; I didn't plan to remove that.)

[nexttime]

comment:6

Ok, now committed the changes, new spkg is at the same, usual place.

It uses required_cflags for $CFLAG64; the rest is still in.

[nexttime]

Changed author from Jeroen Demeyer to Leif Leonhardy

[nexttime]

Diff between the previous spkg in Sage and my new p1 spkg. For reference / review only.

[nexttime]

comment:7

Attachment: mpfr-3.1.0.p0-p1.diff.gz

Attached a diff to the p0, for review purposes.

[vbraun]

comment:8

Looks good to me!

[vbraun]

Reviewer: Volker Braun

[nexttime]

comment:9

Replying to @vbraun:

Looks good to me!

Thanks, progress... :-)

[jdemeyer]

Merged: sage-5.0.rc0