Fix unportable use of isspace(), per buildfarm results.

diff --git a/contrib/tsearch2/stopword.c b/contrib/tsearch2/stopword.c
index 2165bb68ddc4ce05b2fb00e89425e5d49f004db0..5f6d56bce30f496bacc961c3c12da23662f2ba46 100644 (file)
--- a/contrib/tsearch2/stopword.c
+++ b/contrib/tsearch2/stopword.c
@@ -48,7 +48,7 @@ readstoplist(text *in, StopList * s)
        while (fgets(buf, sizeof(buf), hin))
        {
            pbuf = buf;
-           while( *pbuf && !isspace( *pbuf ) )
+           while( *pbuf && !isspace((unsigned char) *pbuf ) )
                pbuf++;
            *pbuf = '\0';