[Bug bootstrap/36481] gcc fails to build on Solaris x86 - it forgets the locations of libmpfr

["gbarnt at student dot dtu dot dk" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #10 from gbarnt at student dot dtu dot dk  2009-05-01 09:01 -------
In reply to #9:

I have tried to build gcc with and without my own patch on our solaris
machines. While both of them fails they fail at the same place (namely
configuration of [arch]/libgcc trying to figure out the object suffix). They do
however die of different reasons (the patched dies due to xgcc seg. faulting
and the unpatched dies because cc1 is unable to locate libmpfr), but that is a
different matter and probably also another bug-thread.

I checked the "build-[arch]/fixincludes" and I cannot see a different between
the patched and the unpatched prior to line 51. Of course these files are
auto-generated, so ... I did however notice that line 50 is the first line in
the make file to use ":=" rather than "=" (both in patched and unpatched
version).

  target = sparc-sun-solaris2.10
  target_noncanonical:=sparc-sun-solaris2.10

Then I realized that we have a GNU Make installed, which I have been using. If
I use a non-GNU make it also fails with that error in that directory. 

  make: Fatal error in reader: Makefile, line 51: Unexpected end of line seen

Nevertheless it also dies in the unpatched version - same place, same error.
(NB: For this test I did not rebuild, I just ran the other make in that dir.)

Opening the Makefile and replacing the ":=" with "=" seems remove the
"Unexpected end of line seen". The other issue you met does not go away though.
But I get this issue with two out of the 4 different "make"s we have installed.
The two succeeding are different version of the GNU make and the failing onces
are (probably) not GNU make (they do not understand --version and -v is
interpreted as something else ... probably verbose).

Nevertheless, from what I can see your issue is likely to originate from a
syntax issue with the Makefile. Since my patch requires running autoconf, the
issue might be that the version of autoconf you used was designed to work with
a newer version of make than the ones failing. My suggestion is to try using an
older autoconf or a newer make or/and a GNU make.

Sorry for the late reply by the way. Hope it helps.

~Niels


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36481