| リビジョン | 116488e5f2f1b897084bd151381ee254e1cc177d (tree) |
|---|---|
| 日時 | 2019-01-18 17:40:54 |
| 作者 | Jaroslav Kysela <perex@pere...> |
| コミッター | Jaroslav Kysela |
alsamixer: define _GNU_SOURCE to get exp10
Fixes Master, Headphones and Speaker stuck at -8 percentage after
building with Clang 7.0.1 and getting warned about implicit declaration
of exp10, which is behind _GNU_SOURCE as a non-standard feature. Thanks
Takashi Iwai for the CFLAGS suggestion on the mailing list. GCC build is
not affected, so not adding a compiler check to the configure script.
uClibc-ng has got exp10 since 1.0.12, so the fallback macro is no longer
needed. However, alsa-utils relies on gettext so might need further
patches to actually work on uClibc systems.
Signed-off-by: makepost <makepost@firemail.cc>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
alsamixer/Makefile.am (diff)
alsamixer/volume_mapping.c (diff)| @@ -1,4 +1,4 @@ | ||
| 1 | -AM_CFLAGS = @CURSES_CFLAGS@ -DCURSESINC="@CURSESINC@" | |
| 1 | +AM_CFLAGS = -D_GNU_SOURCE @CURSES_CFLAGS@ -DCURSESINC="@CURSESINC@" | |
| 2 | 2 | LDADD = @CURSESLIB@ |
| 3 | 3 | |
| 4 | 4 | bin_PROGRAMS = alsamixer |
| @@ -36,11 +36,6 @@ | ||
| 36 | 36 | #include <stdbool.h> |
| 37 | 37 | #include "volume_mapping.h" |
| 38 | 38 | |
| 39 | -#ifdef __UCLIBC__ | |
| 40 | -/* 10^x = 10^(log e^x) = (e^x)^log10 = e^(x * log 10) */ | |
| 41 | -#define exp10(x) (exp((x) * log(10))) | |
| 42 | -#endif /* __UCLIBC__ */ | |
| 43 | - | |
| 44 | 39 | #define MAX_LINEAR_DB_SCALE 24 |
| 45 | 40 | |
| 46 | 41 | static inline bool use_linear_dB_scale(long dBmin, long dBmax) |
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