Interix cc compiler suddenly fails tests in new 64bit SUA 6.1 RC1

[Jerker Bäck]

Hello all,
When testing 64bit Interix SDK version 6.1 RC1, the cc Korn shell compiler
script suddenly fails a lot of autoconf tests.

The testsuite.log is attached.

Normally (as in Interix SDK 6.0 RTM) it should pass all tests except for:
18: autoupdating AC_PREREQ
62: Multiline command from M4 expansion

I think the two failing tests are due to an Interix specific GNU m4 bug on
reading stdin.

When I run the tests with the new Interix gcc 4.2 (32bit only) instead of
cc, it pass all tests except for the 2 mentioned above.

What could be the possible cause of the script failure?

Any thoughts would be most welcome.

Environment:
Interix Korn shell (64bit) and Interix C shell (32bit)
GNU Autoconf 2.61b (current cvs version), GNU make-3.81, GNU m4-1.4.8

$ uname -a
Interix max2008 6.0 10.0.6025.0 genuineintel
Intel64_Family_15_Model_6_Stepping_5
$ cl.exe
Microsoft (R) C/C++ Optimizing Compiler Version 15.00.21022.08 for x64


Thanks Jerker

testsuite.log
Description: Binary data