test_bn fails for OpenSSL on Windows

Compiling OpenSSL on Windows using MSYS and mingw64 is pretty straightforward. However, one of the tests (test_bn) to verify OpenSSL fails: The temporary file that test_bncreates contains Windows newline characters (\r\n) instead of the Unix type newline charater (\n).

The original regular expression checks for a zero (0) at the beginning of a line, and a newline character (\n).

(!/^0$$/)

A change to the regular expression that test_bn uses fixes this problem, and can be used on Unix as well as Windows environments. This makes the Makefile more cross-platform friendly. The modified regular expression checks for a zero (0) at the beginning of a line, an optional Windows newline character (\r) and a newline character (\n).

(!/^0\r?$$/)

--- openssl-1.0.1g/test/Makefile 2014-04-07 16:55:44 +0000 +++ patched/test/Makefile 2014-05-06 00:07:20 +0000 @@ -227,7 +227,7 @@ @../util/shlib_wrap.sh ./$(BNTEST) >tmp.bntest @echo quit >>tmp.bntest @echo "running bc" - @) {if (/^test (.*)/) {print STDERR "\nverify $$1";} elsif (!/^0$$/) {die "\nFailed! bc: $$_";} else {print STDERR "."; $$i++;}} print STDERR "\n$$i tests passed\n"' + @) {if (/^test (.*)/) {print STDERR "\nverify $$1";} elsif (!/^0\r?$$/) {die "\nFailed! bc: $$_";} else {print STDERR "."; $$i++;}} print STDERR "\n$$i tests passed\n"' @echo 'test a^b%c implementations' ../util/shlib_wrap.sh ./$(EXPTEST)

As of May 28, 2014 this patch has been applied to the main branch of openssl: see http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=028bac0670c167f154438742eb4d0fbed73df209