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-rw-r--r--libqcdm/tests/modepref.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libqcdm/tests/modepref.c b/libqcdm/tests/modepref.c
index e5310d9c..f8855161 100644
--- a/libqcdm/tests/modepref.c
+++ b/libqcdm/tests/modepref.c
@@ -536,7 +536,7 @@ main (int argc, char *argv[])
}
if (debug)
- putenv ("QCDM_DEBUG=1");
+ putenv ((char *)"QCDM_DEBUG=1");
fd = com_setup (dmport);
if (fd < 0)