| alsa-lib: provide dummy definitions of RTLD_* if necessary |
| |
| The FLAT GNU toolchain (e.g. blackfin) doesn't include the dlfcn.h header |
| file, so we need to guard that include. Additionally, provide dummy |
| definitions for parameters RTLD_GLOBAL / RTLD_NOW which are normally |
| provided by dlfcn.h. |
| |
| Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> |
| [Thomas: don't add separate dlmisc.h, move dummy defs to global.h] |
| Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> |
| |
| diff --git a/include/global.h b/include/global.h |
| --- a/include/global.h |
| +++ b/include/global.h |
| @@ -97,6 +97,16 @@ extern struct snd_dlsym_link *snd_dlsym_ |
| /** \brief Returns the version of a dynamic symbol as a string. */ |
| #define SND_DLSYM_VERSION(version) __STRING(version) |
| |
| +/* RTLD_NOW and RTLD_GLOBAL (used for 'mode' in snd_dlopen) are not defined |
| + * on all arches (e.g. blackfin), so provide a dummy definition here. */ |
| +#ifndef RTLD_NOW |
| +#define RTLD_NOW 0 |
| +#endif |
| + |
| +#ifndef RTLD_GLOBAL |
| +#define RTLD_GLOBAL 0 |
| +#endif |
| + |
| void *snd_dlopen(const char *file, int mode); |
| void *snd_dlsym(void *handle, const char *name, const char *version); |
| int snd_dlclose(void *handle); |
| diff --git a/modules/mixer/simple/sbasedl.c b/modules/mixer/simple/sbasedl.c |
| --- a/modules/mixer/simple/sbasedl.c |
| +++ b/modules/mixer/simple/sbasedl.c |
| @@ -27,7 +27,9 @@ |
| #include <fcntl.h> |
| #include <sys/ioctl.h> |
| #include <math.h> |
| +#ifdef HAVE_LIBDL |
| #include <dlfcn.h> |
| +#endif |
| #include "config.h" |
| #include "asoundlib.h" |
| #include "mixer_abst.h" |
| diff --git a/src/mixer/simple_abst.c b/src/mixer/simple_abst.c |
| --- a/src/mixer/simple_abst.c |
| +++ b/src/mixer/simple_abst.c |
| @@ -34,7 +34,9 @@ |
| #include <fcntl.h> |
| #include <sys/ioctl.h> |
| #include <math.h> |
| +#ifdef HAVE_LIBDL |
| #include <dlfcn.h> |
| +#endif |
| #include "config.h" |
| #include "asoundlib.h" |
| #include "mixer_simple.h" |