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Allow build without libdl and libpthread

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Allow building alsa-lib without libdl and libpthread.
Added new options to configure, --with-libdl and --with-pthread.
This commit is contained in:
Takashi Iwai 2007-03-22 00:48:18 +01:00
parent 9a75eec664
commit 70e4ec9d08
21 changed files with 118 additions and 25 deletions
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27
src/dlmisc.c
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@ -28,7 +28,6 @@
*/
#define _GNU_SOURCE
#include <dlfcn.h>
#include "list.h"
#include "local.h"
@ -53,13 +52,19 @@ void *snd_dlopen(const char *name, int mode)
if (name == NULL)
return &snd_dlsym_start;
#else
#ifdef HAVE_LIBDL
if (name == NULL) {
Dl_info dlinfo;
if (dladdr(snd_dlopen, &dlinfo) > 0)
name = dlinfo.dli_fname;
}
#endif
#endif
#ifdef HAVE_LIBDL
return dlopen(name, mode);
#else
return NULL;
#endif
}
/**
@ -76,7 +81,11 @@ int snd_dlclose(void *handle)
if (handle == &snd_dlsym_start)
return 0;
#endif
#ifdef HAVE_LIBDL
return dlclose(handle);
#else
return 0;
#endif
}
/**
@ -91,6 +100,7 @@ int snd_dlclose(void *handle)
*/
static int snd_dlsym_verify(void *handle, const char *name, const char *version)
{
#ifdef HAVE_LIBDL
int res;
char *vname;
@ -107,6 +117,9 @@ static int snd_dlsym_verify(void *handle, const char *name, const char *version)
if (res < 0)
SNDERR("unable to verify version for symbol %s", name);
return res;
#else
return 0;
#endif
}
/**
@ -139,10 +152,16 @@ void *snd_dlsym(void *handle, const char *name, const char *version)
return NULL;
}
#endif
err = snd_dlsym_verify(handle, name, version);
if (err < 0)
return NULL;
#ifdef HAVE_LIBDL
if (version) {
err = snd_dlsym_verify(handle, name, version);
if (err < 0)
return NULL;
}
return dlsym(handle, name);
#else
return NULL;
#endif
}
/*