[FFmpeg-cvslog] configure: uClibc native pthread requires -ldl

[Neil Armstrong]

ffmpeg | branch: master | Neil Armstrong <superna9999 at gmail.com> | Mon May 26 15:21:03 2014 +0200| [99d742aac41bf613e0b797b1f809040c9b426536] | committer: Michael Niedermayer

configure: uClibc native pthread requires -ldl

In the configure script, add a pthread detection with
-ldl added to cflags, because uClibc requires -ldl to
link with native libpthread.

Tested with a custom ARM toolchain with uClibc 0.9.33.2 and gcc 4.6.3.

Signed-off-by: Neil Armstrong <narmstrong at neotion.com>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=99d742aac41bf613e0b797b1f809040c9b426536
---

 configure |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure b/configure
index fae2f77..b920dde 100755
--- a/configure
+++ b/configure
@@ -4593,6 +4593,9 @@ if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
         add_cflags -pthreads
         add_extralibs -pthreads
+    elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
+        add_cflags -ldl -pthread
+        add_extralibs -ldl -pthread
     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
         add_extralibs -lpthreadGC2
     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then