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-rw-r--r--alsamixer/volume_mapping.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/alsamixer/volume_mapping.c b/alsamixer/volume_mapping.c
index 9cacad8..1c0d7c4 100644
--- a/alsamixer/volume_mapping.c
+++ b/alsamixer/volume_mapping.c
@@ -37,6 +37,11 @@
#include <stdbool.h>
#include "volume_mapping.h"
+#ifdef __UCLIBC__
+/* 10^x = 10^(log e^x) = (e^x)^log10 = e^(x * log 10) */
+#define exp10(x) (exp((x) * log(10)))
+#endif /* __UCLIBC__ */
+
#define MAX_LINEAR_DB_SCALE 24
static inline bool use_linear_dB_scale(long dBmin, long dBmax)