| From da14c5ab2a6e030c5c56c979b8eb3ca071890876 Mon Sep 17 00:00:00 2001 |
| From: Peter Korsgaard <jacmet@sunsite.dk> |
| Date: Mon, 14 Mar 2011 09:19:18 +0100 |
| Subject: [PATCH] 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> |
| --- |
| 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) |
| -- |
| 1.7.2.3 |
| |
