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-rw-r--r--util/spkmodem_decode/spkmodem-decode.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/util/spkmodem_decode/spkmodem-decode.c b/util/spkmodem_decode/spkmodem-decode.c
index 40581dd7..3b3b33f8 100644
--- a/util/spkmodem_decode/spkmodem-decode.c
+++ b/util/spkmodem_decode/spkmodem-decode.c
@@ -257,6 +257,10 @@ extern int optind;
extern int opterr;
extern int optopt;
+#ifndef CHAR_BIT
+#define CHAR_BIT 8
+#endif
+
typedef char static_assert_char_is_8_bits[(CHAR_BIT == 8) ? 1 : -1];
typedef char static_assert_char_is_1[(sizeof(char) == 1) ? 1 : -1];
typedef char static_assert_short[(sizeof(short) == 2) ? 1 : -1];