I'm attaching a few tweaks to build psqlodbc with Unicode support on
Unix. I changed some code that assumes two-byte SQLWCHAR and I changed
configure.ac and Makefile.am, as necessary.
I tested this with unixODBC 2.2.7 on SuSE Linux 8.2. I built unixODBC
--with-iconv-ucode-enc=UCS-4LE and with SQL_WCHART_CONVERT defined, so that
SQLWCHAR is wchar_t. I have not tested it with UCS-2 / unsigned short.
I also tested this with iODBC 3.51.1, which always uses wchar_t on Unix.
One caveat, if anyone actually plays with this: sqlext.h should include
sqlucode.h, so I haven't patched psqlodbc to do so. The next release of
unixODBC will contain this fix, and I've mentioned it to the iODBC maintainer.
I realize that the demand for Unicode ODBC on Unix for PostgreSQL is pretty
small. Nonetheless, I've learned a few things poking around the code, and
I figured someone might be interested.
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