[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

Andrew Pinski  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #10 from Andrew Pinski  ---
The requirements now are explicit in saying you need a C++ compiler.

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[developer at sandoe-acoustics dot co dot uk]

--- Comment #9 from developer at sandoe-acoustics dot co dot uk  2009-08-25 
12:06 ---
(In reply to comment #7)
 Use --enable-stage1-languages=c,c++

I believe that this bug also applies to powerpc-apple-darwin8 and
i686-apple-darwin9.
the suggested remedy also works.

This was introduced between 148251 and 151057 (OK a big gap .. but) during
which time I didn't update GMP - so the change is at least in part down to gcc
build process changing.

if it's any clue  /lib/cpp is not a fallback compiler install location for
Darwin - which perhaps implies that the build process has lost its idea of the
target.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[redi at gcc dot gnu dot org]

--- Comment #4 from redi at gcc dot gnu dot org  2009-08-14 11:30 ---
I'm seeing this on RHEL5 with the gcc-4.5-20090813 snapshot, GMP 4.3.1 and MPFR
2.4.1

I have /lib/cpp present (from the cpp package) but no system compilers
installed. Instead I have GCC 4.3.4 elsewhere in my path, but in-tree gmp build
tries to use /lib/cpp instead of the cpp in my path.

configure:11168: /lib/cpp -DNO_ASM conftest.cc
cpp: error trying to exec 'cc1plus': execvp: No such file or directory

GMP should not be trying to use /lib/cpp as a C++ preprocessor during
bootstrap.

I configure with --disable-bootstrap to avoid the error.


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redi at gcc dot gnu dot org changed:

   What|Removed |Added

 CC||redi at gcc dot gnu dot org
 Status|UNCONFIRMED |NEW
 Ever Confirmed|0   |1
   Last reconfirmed|-00-00 00:00:00 |2009-08-14 11:30:42
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[rwild at gcc dot gnu dot org]

--- Comment #5 from rwild at gcc dot gnu dot org  2009-08-14 12:43 ---
Well in this case it has nothing to do with cpp, if you look at the respective
config.log file you see that earlier some in-tree g++ from an earlier stage,
  /home/lucier/programs/gcc/objdirs/mainline/./prev-gcc/g++
is not found because it has not been built, thus the build chooses an
installed g++.  The real error is that the toplevel fails to enable building
this g++ with your --enable-languages=c being set.  All the rest is followup
failure.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[redi at gcc dot gnu dot org]

--- Comment #6 from redi at gcc dot gnu dot org  2009-08-14 12:58 ---
I'm configuring with --enable-languages=c,c++ and still don't have a
prev-gcc/g++ (is g++ ever built in stage1?)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[rguenth at gcc dot gnu dot org]

--- Comment #7 from rguenth at gcc dot gnu dot org  2009-08-14 13:02 ---
Use --enable-stage1-languages=c,c++


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[redi at gcc dot gnu dot org]

--- Comment #8 from redi at gcc dot gnu dot org  2009-08-14 13:13 ---
Thanks, Richard.

If in-tree gmp is going to use --enable-cxx (which it seems to, even though I'm
not building with ppl and cloog-ppl) then should the c++ compiler be built in
stage1 automatically?

Alternatively, gmp's configure should look in PATH instead of assuming either
stage1 or /lib/cpp will support C++, because that assumption isn't valid.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[lucier at math dot purdue dot edu]

--- Comment #1 from lucier at math dot purdue dot edu  2009-08-03 17:15 
---
Created an attachment (id=18291)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18291action=view)
Build log of failed bootstrap


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[lucier at math dot purdue dot edu]

--- Comment #2 from lucier at math dot purdue dot edu  2009-08-03 17:16 
---
Created an attachment (id=18292)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18292action=view)
log of failed gmp configuration


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950

[Bug bootstrap/40950] Bootstrap fails with in-tree gmp and without system C++ compiler

[lucier at math dot purdue dot edu]

--- Comment #3 from lucier at math dot purdue dot edu  2009-08-03 17:17 
---
Created an attachment (id=18293)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18293action=view)
build log with right content type


-- 

lucier at math dot purdue dot edu changed:

   What|Removed |Added

  Attachment #18291|0   |1
is obsolete||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950