When compiling mplayer against x264, configure says it's unavailable

because it does not link the test-program with -pthread.
Remove the static -lx264 and replaces it with the accurate
`pkg-config --libs x264`, so the linker finds all the symbols needed.
After that, mencoder can finally encode x264-movies.

PR:		ports/98914
Submitted by:	Mark Daniel Reidel <ports@mark.reidel.info>
Approved by:	maintainer

multimedia/mplayer/Makefile

@@ -274,7 +274,7 @@
 
 PORTNAME=	mplayer
 PORTVERSION=	0.99.7
-PORTREVISION=	14
+PORTREVISION=	15
 CATEGORIES=	multimedia audio
 MASTER_SITES=	http://www1.mplayerhq.hu/MPlayer/releases/ \
 		http://www2.mplayerhq.hu/MPlayer/releases/ \

multimedia/mplayer/files/patch-ad

@@ -152,7 +152,7 @@
    fi
    # internal faad: check if our dear gcc is able to compile it...
    cp "`pwd`/libfaad2/cfft.c" $TMPC
-@@ -5935,7 +5874,7 @@
+@@ -5935,12 +5878,12 @@
  cat > $TMPC << EOF
  #include <inttypes.h>
  #include <x264.h>
@@ -161,6 +161,12 @@
  #error We do not support old versions of x264. Get the latest from SVN.
  #endif
  int main(void) { x264_encoder_open((void*)0); return 0; }
+ EOF
+-_ld_x264="$_ld_x264 -lx264 $_ld_lm"
++_ld_x264="$_ld_x264 `pkg-config --libs x264` $_ld_lm"
+ if test "$_x264" != no && cc_check $_inc_x264 $_ld_x264 ; then
+   _x264=yes
+   _def_x264='#define HAVE_X264 1'
 @@ -6115,8 +6054,11 @@
   if test "$_tv" = yes ; then
      cat > $TMPC <<EOF