When doing an if-test on the result of a function which returns a string

[mmh] / ChangeLog

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+2008-08-03  Peter Maydell  <pmaydell@chiark.greenend.org.uk>
+
+       * sbr/fmt_compile.c: when doing an if-test on the result
+       of a function which returns a string result, check whether
+       the string is non-empty (as the documentation says we do).
+       Previously we were always testing the integer 'value'. Bug
+       spotted by Eric Gillespie.
+       * test/tests/repl/test-if-str: test case for this bug.
+
 2008-07-24  Eric Gillespie  <epg@pretzelnet.org>
 
        * test/setup-test: Run 'make clean' before building