[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

--- Comment #9 from Thomas Schwinge  ---
(In reply to Martin Reinecke from comment #8)
> In order to save others some head-scratching, would it be possible to update
> the ISL version check in the configuration machinery so that it gives a
> clear error when encountering an ISL version that is too old?

Done in r231706.

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[mar...@mpa-garching.mpg.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

--- Comment #8 from Martin Reinecke  ---
I confirm that I can build again when provoding the ISL 0.15 sources withon the
gcc/ directory.

In order to save others some head-scratching, would it be possible to update
the ISL version check in the configuration machinery so that it gives a clear
error when encountering an ISL version that is too old?

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

David Edelsohn  changed:

   What|Removed |Added

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

--- Comment #7 from David Edelsohn  ---
GCC Development often requires newer versions of packages than those shipped
with Linux distributions.  GCC now requires ISL 0.14 or 0.15 (possibly 0.13,
but no one has confirmed).

Also, as referenced in comment #6, earlier versions of ISL have flaws and
should not be used.

There are multiple reasons that ISL 0.12 should not be supported.  GCC Graphite
can compile and operate correctly with ISL 0.15.  Please upgrade to a newer
release of ISL.

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

--- Comment #5 from David Edelsohn  ---
One needs to upgrade to ISL 0.14 or 0.15.

The earlier inclusion ordering of ISL header files in graphite source files
were wrong and did not follow GCC requirements.  It worked on Mint and OpenSUSE
because GCC header file requirements were violated.

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

Thomas Schwinge  changed:

   What|Removed |Added

 CC||alalaw01 at gcc dot gnu.org,
   ||dje at gcc dot gnu.org,
   ||spop at gcc dot gnu.org,
   ||tschwinge at gcc dot gnu.org

--- Comment #4 from Thomas Schwinge  ---
See also
.
 Unfortunately, one has to revert a number of patches before being able to
revert r230759.

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

Joost VandeVondele  changed:

   What|Removed |Added

 CC||Joost.VandeVondele at mat dot 
ethz
   ||.ch

--- Comment #6 from Joost VandeVondele  
---
graphite without recent ISL is not a good idea, graphite before 0.15 (certainly
not 0.12) could lead to exponential memory and cpu time requirements, see

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53852#c19

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[mar...@mpa-garching.mpg.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

--- Comment #1 from Martin Reinecke  ---
I should probably add that building the trunk was possible without any problems
on Linux Mint until about two weeks ago. Unfortunately I do not know yet how to
isolate the problematic commit ... will look into "git bisect" and post updates
if I have more information.

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[mar...@mpa-garching.mpg.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

--- Comment #2 from Martin Reinecke  ---
OK, the problematic commit appears to be:

Revision 230759 - Directory Listing
Added Mon Nov 23 14:23:59 2015 UTC (3 days, 23 hours ago) by dje

Correct graphite*.c ISL header file inclusion order.
* system.h: Don't poison calloc and strdup if USES_ISL is defined.
* graphite-dependences.c: Define USES_ISL.  Include ISL header files
after GCC header files and before graphite header files.
* graphite-dependences.c: Same.
* graphite-isl-ast-to-gimple.c: Same.
* graphite-optimize-isl.c: Same.
* graphite-poly.c: Same.
* graphite-scop-detection.c: Same.
* graphite-sese-to-poly.c: Same.
* graphite.c: Same.

[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[reichelt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

Volker Reichelt  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2015-11-27
 CC||reichelt at gcc dot gnu.org
 Ever confirmed|0   |1

--- Comment #3 from Volker Reichelt  ---
I have the same problem on an OpenSUSE 13.1 distribution.