[Bug bootstrap/42424] New: in-tree GMP/MPFR/MPC bootstrap fails.

[Bug bootstrap/42424] New: in-tree GMP/MPFR/MPC bootstrap fails.

[developer at sandoe-acoustics dot co dot uk]

155320 

configure: error: libgmp not found or uses a different ABI.
make[2]: *** [configure-stage1-mpc] Error 1
make[1]: *** [stage1-bubble] Error 2
make: *** [bootstrap] Error 2

NOTE; in-tree mpc works if gmp/mpfr are installed & referenced with
--with-gmp/--with-mpfr.


-- 
           Summary: in-tree GMP/MPFR/MPC bootstrap fails.
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: developer at sandoe-acoustics dot co dot uk
 GCC build triplet: *-apple-darwin9, i686-pc-linux-gnu
  GCC host triplet: *-apple-darwin9, i686-pc-linux-gnu
GCC target triplet: *-apple-darwin9, i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] in-tree GMP/MPFR/MPC bootstrap fails

[ghazi at gcc dot gnu dot org]

------- Comment #1 from ghazi at gcc dot gnu dot org  2010-01-02 16:24 -------
I was able to do a C-only bootstrap of mainline with all three libraries
in-tree on x86_64-unknown-linux-gnu.  I used mpc-0.8, mpfr-2.4.2, gmp-4.3.1 and
bootstrapped with gcc-4.3.2.  I cannot reproduce this problem, so we need more
info, e.g.

1.  Is this a recent regression or has it always failed?
2.  What versions of the various libraries did you use?
3.  Does it fail with all versions of the libs or just some?
4.  The targets listed include darwin9 and i686-linux, do they both fail for
the same reason?
5.  Do you have other versions of gmp/mpfr installed somewhere that conflict
with the bootstrap?
6.  Is there more info or investigation you can provide?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] in-tree GMP/MPFR/MPC bootstrap fails

[developer at sandoe-acoustics dot co dot uk]

------- Comment #2 from developer at sandoe-acoustics dot co dot uk  2010-01-02 16:41 -------
(In reply to comment #1)
> I was able to do a C-only bootstrap of mainline with all three libraries
> in-tree on x86_64-unknown-linux-gnu.  I used mpc-0.8, mpfr-2.4.2, gmp-4.3.1 and
... 
> 1.  Is this a recent regression or has it always failed?
since the introduction of mpc - prior to that I had been using in-tree mpc/mpfr
with no issues.
[however the first version of mpc I've used is 0.8.1].
> 2.  What versions of the various libraries did you use?
gmp-4-3-1, mpfr-2-4-1 source trees.
mpc-0.8.1 source tree
> 3.  Does it fail with all versions of the libs or just some?
I haven't built with mpc prior to 0.8.1 - but these same gmp/mpfr versions
*were* OK prior to the introduction of mpc.
> 4.  The targets listed include darwin9 and i686-linux, do they both fail for
> the same reason?
yes - configure fail for mpc.
> 5.  Do you have other versions of gmp/mpfr installed somewhere that conflict
> with the bootstrap?
no, I don't install any of these libs on darwin.  
I have installed on i686-linux *since*, but the fault occurred on a fresh
ubuntu 9.10 install.

> 6.  Is there more info or investigation you can provide?
make check (mpc part) also fails when the mpc is built in tree - even when the
gm/mpfr libs are supplied using --with-{gmp,mpfr}= ... this perhaps points at
an mpc config change between 0.8 and 0.8.1 - since 0.8 works for you.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] in-tree GMP/MPFR/MPC bootstrap fails

[fxcoudert at gcc dot gnu dot org]

------- Comment #3 from fxcoudert at gcc dot gnu dot org  2010-01-02 19:53 -------
OK, I can reproduce the issue.

1. I have a GCC trunk (rev. 155544). In there I put symlinks to gmp-4.3.1,
mpfr-2.4.2 and mpc-0.8.1
2. From an empty build directory, I configure with: ../trunk/configure
--prefix=/Users/fx/devel/gcc/irun --enable-languages=c
3. "make" fails with:

checking for __gmpz_init in -lgmp... no
configure: error: libgmp not found or uses a different ABI.
make[2]: *** [configure-stage1-mpc] Error 1
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2


The problem is actually not an ABI one, but that the mpc configure fails with:

configure:10805: checking for __gmpz_init in -lgmp
configure:10830: gcc -o conftest -g -fkeep-inline-functions
-I/Users/fx/devel/gcc/ibin-intree/./gmp -I/Users/fx/devel/gcc/trunk/mpfr   
conftest.c -lgmp   >&5
ld: library not found for -lgmp

The problem is that mpc isn't told where to find the gmp and mpfr libraries. It
is confirmed by the mpc configure command-line (from mpc/config.log):

/Users/fx/devel/gcc/trunk/mpc/configure --cache-file=./config.cache
--prefix=/Users/fx/devel/gcc/irun --enable-languages=c
--program-transform-name=s,y,y, --disable-option-checking
--build=x86_64-apple-darwin10.2.0 --host=x86_64-apple-darwin10.2.0
--target=x86_64-apple-darwin10.2.0 --srcdir=../../trunk/mpc
--disable-intermodule --enable-checking=yes,types --disable-coverage
--enable-languages=c --disable-shared
--with-gmp-include=/Users/fx/devel/gcc/ibin-intree/./gmp
--with-mpfr-include=/Users/fx/devel/gcc/trunk/mpfr


This can be contrasted with mpfr, which is configured with
'--with-gmp-build=/Users/fx/devel/gcc/ibin-intree/./gmp', and thus knows where
to find libgmp. So it seems that the following patch should be applied to
configure.ac:

Index: configure.ac
===================================================================
--- configure.ac        (revision 155544)
+++ configure.ac        (working copy)
@@ -1287,7 +1287,7 @@
 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d
${srcdir}/mpfr; then
   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/.libs -L$$r/$(HOST_SUBDIR)/mpfr/_libs
'"$gmplibs"
   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
-  extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr'
+  extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr
--with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/.libs'
   # Do not test the mpfr version.  Assume that it is sufficient, since
   # it is in the source tree, and the library has not been built yet
   # but it would be included on the link line in the version check below
@@ -1321,7 +1321,7 @@
   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/.libs -L$$r/$(HOST_SUBDIR)/gmp/_libs
'"$gmplibs"
   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
   extra_mpfr_configure_flags='--with-gmp-build=$$r/$(HOST_SUBDIR)/gmp'
-  extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp'
+  extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp
--with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/.libs'
   # Do not test the gmp version.  Assume that it is sufficient, since
   # it is in the source tree, and the library has not been built yet
   # but it would be included on the link line in the version check below



Except that on some targets, ".libs" is actually called "_libs". I don't know
how to deal with that.


-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-01-02 19:53:42
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] in-tree GMP/MPFR/MPC bootstrap fails

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-01-03 11:15 -------
*** Bug 42584 has been marked as a duplicate of this bug. ***


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lxndrmxwll at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] [4.5 Regression] in-tree GMP/MPFR/MPC bootstrap fails

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2010-01-03 11:16 -------
I think we want to make this work for 4.5 again, it works for 4.4 - of course
w/o mpc which causes the problems here.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bonzini at gnu dot org
           Priority|P3                          |P1
            Summary|in-tree GMP/MPFR/MPC        |[4.5 Regression] in-tree
                   |bootstrap fails             |GMP/MPFR/MPC bootstrap fails
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] [4.5 Regression] in-tree GMP/MPFR/MPC bootstrap fails

[ghazi at gcc dot gnu dot org]

------- Comment #6 from ghazi at gcc dot gnu dot org  2010-01-03 15:31 -------
(In reply to comment #3)
> OK, I can reproduce the issue.
> The problem is that mpc isn't told where to find the gmp and mpfr libraries. 
> [...]
> Except that on some targets, ".libs" is actually called "_libs". I don't know
> how to deal with that.

Ah, I think you're on the right track.  I can't yet figure out why it won't
reproduce for me.  There must be some libgmp in my lib path but I can't find it
ATM.

Anyway, I have an idea for _libs and will try to fix it.


-- 

ghazi at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |ghazi at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2010-01-02 19:53:42         |2010-01-03 15:31:13
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] [4.5 Regression] in-tree GMP/MPFR/MPC bootstrap fails

[ghazi at gcc dot gnu dot org]

------- Comment #7 from ghazi at gcc dot gnu dot org  2010-01-06 23:26 -------
Proposed patch:
http://gcc.gnu.org/ml/gcc-patches/2010-01/msg00300.html

The bug is masked on my box by an old libgmp installation.  So to be sure the
above patch actually fixes the problem, I'd appreciate hearing from someone who
was able to reproduce the error to verify it works.  Thanks.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] [4.5 Regression] in-tree GMP/MPFR/MPC bootstrap fails

[fxcoudert at gcc dot gnu dot org]

------- Comment #8 from fxcoudert at gcc dot gnu dot org  2010-01-06 23:50 -------
Patch works for me.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] [4.5 Regression] in-tree GMP/MPFR/MPC bootstrap fails

[ghazi at gcc dot gnu dot org]

------- Comment #9 from ghazi at gcc dot gnu dot org  2010-01-07 21:58 -------
Subject: Bug 42424

Author: ghazi
Date: Thu Jan  7 21:58:23 2010
New Revision: 155712

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155712
Log:
        PR bootstrap/42424
        * configure.ac: Include libtool m4 files.
        (_LT_CHECK_OBJDIR): Call it.
        (extra_mpc_mpfr_configure_flags, extra_mpc_gmp_configure_flags,
        gmplibs, ppllibs, clooglibs): Use $lt_cv_objdir.

        * configure: Regenerate.



Modified:
    trunk/ChangeLog
    trunk/configure
    trunk/configure.ac


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424

[Bug bootstrap/42424] [4.5 Regression] in-tree GMP/MPFR/MPC bootstrap fails

[rguenth at gcc dot gnu dot org]

------- Comment #10 from rguenth at gcc dot gnu dot org  2010-01-08 12:57 -------
Thus fixed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42424