package/alsa-lib/0003-dlmisc.patch

   1 alsa-lib: provide dummy definitions of RTLD_* if necessary
   2
   3 The FLAT GNU toolchain (e.g. blackfin) doesn't include the dlfcn.h header
   4 file, so we need to guard that include. Additionally, provide dummy
   5 definitions for parameters RTLD_GLOBAL / RTLD_NOW which are normally
   6 provided by dlfcn.h.
   7
   8 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
   9 [Thomas: don't add separate dlmisc.h, move dummy defs to global.h]
  10 Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
  11
  12 diff --git a/include/global.h b/include/global.h
  13 --- a/include/global.h
  14 +++ b/include/global.h
  15 @@ -97,6 +97,16 @@ extern struct snd_dlsym_link *snd_dlsym_
  16  /** \brief Returns the version of a dynamic symbol as a string. */
  17  #define SND_DLSYM_VERSION(version) __STRING(version)
  18
  19 +/* RTLD_NOW and RTLD_GLOBAL (used for 'mode' in snd_dlopen) are not defined
  20 + * on all arches (e.g. blackfin), so provide a dummy definition here. */
  21 +#ifndef RTLD_NOW
  22 +#define RTLD_NOW 0
  23 +#endif
  24 +
  25 +#ifndef RTLD_GLOBAL
  26 +#define RTLD_GLOBAL 0
  27 +#endif
  28 +
  29  void *snd_dlopen(const char *file, int mode);
  30  void *snd_dlsym(void *handle, const char *name, const char *version);
  31  int snd_dlclose(void *handle);
  32 diff --git a/modules/mixer/simple/sbasedl.c b/modules/mixer/simple/sbasedl.c
  33 --- a/modules/mixer/simple/sbasedl.c
  34 +++ b/modules/mixer/simple/sbasedl.c
  35 @@ -27,7 +27,9 @@
  36  #include <fcntl.h>
  37  #include <sys/ioctl.h>
  38  #include <math.h>
  39 +#ifdef HAVE_LIBDL
  40  #include <dlfcn.h>
  41 +#endif
  42  #include "config.h"
  43  #include "asoundlib.h"
  44  #include "mixer_abst.h"
  45 diff --git a/src/mixer/simple_abst.c b/src/mixer/simple_abst.c
  46 --- a/src/mixer/simple_abst.c
  47 +++ b/src/mixer/simple_abst.c
  48 @@ -34,7 +34,9 @@
  49  #include <fcntl.h>
  50  #include <sys/ioctl.h>
  51  #include <math.h>
  52 +#ifdef HAVE_LIBDL
  53  #include <dlfcn.h>
  54 +#endif
  55  #include "config.h"
  56  #include "asoundlib.h"
  57  #include "mixer_simple.h"