$ make clean
[: 10: ==: unexpected operator
cleaning tk/tkutil
make[1]: Entering directory `/home/hemant/checkout/ruby19/ext/tk/tkutil'
make[1]: Leaving directory `/home/hemant/checkout/ruby19/ext/tk/tkutil'
[: 10: ==: unexpected operator
cleaning win32ole
make[1]: Entering directory `/home/hemant/checkout/ruby19/ext/win32ole'
make[1]: Leaving directory `/home/hemant/checkout/ruby19/ext/win32ole'
[: 10: ==: unexpected operator
cleaning zlib
make[1]: Entering directory `/home/hemant/checkout/ruby19/ext/zlib'
make[1]: Leaving directory `/home/hemant/checkout/ruby19/ext/zlib'
[: 10: ==: unexpected operator
make: *** [clean-ext] Error 1


Is that just me or shall I file a bug report?