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-rw-r--r--libguile/win32-socket.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/win32-socket.c b/libguile/win32-socket.c
index e845d886a..825b4c499 100644
--- a/libguile/win32-socket.c
+++ b/libguile/win32-socket.c
@@ -435,7 +435,7 @@ scm_i_socket_uncomment (char *line)
while (end > line && (*end == '\r' || *end == '\n'))
*end-- = '\0';
}
- while (end > line && isspace (*end))
+ while (end > line && isspace ((int) (*end)))
*end-- = '\0';
return end;