diff options
| -rw-r--r-- | package/alsa-utils/patches/alsa-utils-exp10-workaround.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/package/alsa-utils/patches/alsa-utils-exp10-workaround.patch b/package/alsa-utils/patches/alsa-utils-exp10-workaround.patch new file mode 100644 index 000000000..f4a520a5c --- /dev/null +++ b/package/alsa-utils/patches/alsa-utils-exp10-workaround.patch @@ -0,0 +1,33 @@ +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 + |