Restore opensc-pkcs11.so functionnality on NetBSD-6.0. libpthread shall
not be loaded by dlopen(), therefore we remove the useless dependency on
-lpthread


(manu)

$NetBSD: patch-configure,v 1.1 2012/10/24 08:33:51 manu Exp $

Make sure we do not link against -lpthread, as we only need mutexes
that can be found in libc.

Linking with -lpthread hurst with opensc-pkcs11.so since NetBSD-6.0
libpthread cannot be loaded by dlopen()

--- configure.orig	2012-10-19 11:29:36.000000000 +0200
+++ configure	2012-10-19 14:57:03.000000000 +0200
@@ -12821,8 +12821,17 @@
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 acx_pthread_ok=no
 
+case "${host_cpu}-${host_os}" in
+        *netbsd*)
+		acx_pthread_ok=yes
+		PTHREAD_CFLAGS=""
+		PTHREAD_LIBS=""
+		LIBS="$LIBS -lltdl"
+	;;
+esac
+
 # We used to check for pthread.h first, but this fails if pthread.h
 # requires special compiler flags (e.g. on True64 or Sequent).
 # It gets checked for in the link test anyway.
 

--- src/pkcs11/pkcs11-global.c.orig	2012-10-22 09:11:56.000000000 +0200
+++ src/pkcs11/pkcs11-global.c	2012-10-22 09:12:14.000000000 +0200
@@ -43,9 +43,9 @@
 #if defined(HAVE_PTHREAD) && defined(PKCS11_THREAD_LOCKING)
 #include <pthread.h>
 CK_RV mutex_create(void **mutex)
 {
-	pthread_mutex_t *m = (pthread_mutex_t *) malloc(sizeof(*mutex));
+	pthread_mutex_t *m = (pthread_mutex_t *) malloc(sizeof(*m));
 	if (m == NULL)
 		return CKR_GENERAL_ERROR;;
 	pthread_mutex_init(m, NULL);
 	*mutex = m;