[Bug bootstrap/40250] make bootstrap fails on IRIX64: ar: libbackend.a: Error reading tree-phinodes.o

Jay dot St dot Pierre at Colorado dot EDU gcc-bugzilla@gcc.gnu.org
Sat May 30 03:08:00 GMT 2009



------- Comment #3 from Jay dot St dot Pierre at Colorado dot EDU  2009-05-30 03:08 -------
So first I checked to see if the files were actually different:

$ cmp ./gcc/tree-phinodes.o ./prev-gcc/tree-phinodes.o
$ find . -name tree-phinodes.o | xargs md5sum
3d613b2eb79551b12cd458e212a5fdb5  ./gcc/tree-phinodes.o
3d613b2eb79551b12cd458e212a5fdb5  ./prev-gcc/tree-phinodes.o
ba6b7f241d8436e5685a4ecdf4bcafdb  ./stage1-gcc/tree-phinodes.o

Seeing as they are binary equivalents, I didn't think it would make a
difference.  I tried restarting the "make bootstrap" without changing anything
to make sure I would get the same results as the other day.  Again, the build
failed in the same spot.

Then I did the following:

$ mv ./gcc/tree-phinodes.o ./gcc/tree-phinodes.o.bak
$ cp ./prev-gcc/tree-phinodes.o ./gcc/tree-phinodes.o

And did another "make bootstrap", and the build is progressing!

I am completely confused.

-Jay


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40250



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