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| author | Peter Korsgaard <jacmet@sunsite.dk> | 2011-03-14 09:48:13 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2011-03-14 10:31:34 +0100 |
| commit | a7bd33957e099dea109e219a348b131c7186ee1e (patch) | |
| tree | dbc12d60881be41de4def81438aff5b623285544 /alsamixer | |
| parent | 3801e25964070390c525b9f2c39913e6ea1eb864 (diff) | |
| download | alsa-utils-a7bd33957e099dea109e219a348b131c7186ee1e.tar.gz | |
alsamixer: fix build on uClibc
exp10 is a glibc extension, which isn't supported on uClibc. Luckily,
exp10() is trivial to compute based on exp(), so add a wrapper for
the uClibc case.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'alsamixer')
| -rw-r--r-- | alsamixer/volume_mapping.c | 5 |
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) |