rubberband: add recipe for version 1.8.1.

* disabled mlock() and co.

media-libs/rubberband/patches/rubberband-1.8.1.patchset

@@ -0,0 +1,57 @@
+From 441f6f21603ba14785ebd49bb51b446363592fd3 Mon Sep 17 00:00:00 2001
+From: Jerome Duval <jerome.duval@gmail.com>
+Date: Mon, 1 Aug 2016 23:49:39 +0000
+Subject: Haiku patch
+
+
+diff --git a/Makefile.in b/Makefile.in
+index 413d075..d92019f 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -2,7 +2,7 @@
+ CXX		:= @CXX@
+ CXXFLAGS	:= -DHAVE_LIBSAMPLERATE -DHAVE_FFTW3 -DFFTW_DOUBLE_ONLY -DNO_THREAD_CHECKS -DUSE_PTHREADS -DNO_TIMING -DNDEBUG @CXXFLAGS@ @SRC_CFLAGS@ @SNDFILE_CFLAGS@ @FFTW_CFLAGS@ @Vamp_CFLAGS@ -Irubberband -I. -Isrc $(OPTFLAGS)
+ CFLAGS		:= @CFLAGS@ $(OPTFLAGS)
+-LDFLAGS		:= @LDFLAGS@ -lpthread $(LDFLAGS)
++LDFLAGS		:= @LDFLAGS@ @LIBPTHREAD@ $(LDFLAGS)
+ 
+ LIBRARY_LIBS		:= @SRC_LIBS@ @FFTW_LIBS@ 
+ PROGRAM_LIBS		:= @SNDFILE_LIBS@ $(LIBRARY_LIBS)
+diff --git a/configure.ac b/configure.ac
+index 1339294..1dadebd 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -6,6 +6,10 @@ AC_PROG_CXX
+ AC_HEADER_STDC
+ AC_C_BIGENDIAN
+ 
++AC_CHECK_LIB([pthread], [pthread_create], [LIBPTHREAD="-lpthread"],
++	[LIBPTHREAD=""])
++AC_SUBST(LIBPTHREAD)
++
+ PKG_CHECK_MODULES([SRC],[samplerate])
+ AC_SUBST(SRC_CFLAGS)
+ AC_SUBST(SRC_LIBS)
+diff --git a/src/system/sysutils.h b/src/system/sysutils.h
+index 371736b..1c66999 100644
+--- a/src/system/sysutils.h
++++ b/src/system/sysutils.h
+@@ -135,9 +135,15 @@ extern void system_memorybarrier();
+ #include <dlfcn.h>
+ #include <stdio.h>
+ 
++#ifdef __HAIKU__
++#define MLOCK(a,b)   (0)
++#define MUNLOCK(a,b) (0)
++#define MUNLOCK_SAMPLEBLOCK(a) do { ; } while(0);
++#else
+ #define MLOCK(a,b)   ::mlock((char *)(a),(b))
+ #define MUNLOCK(a,b) (::munlock((char *)(a),(b)) ? (::perror("munlock failed"), 0) : 0)
+ #define MUNLOCK_SAMPLEBLOCK(a) do { if (!(a).empty()) { const float &b = *(a).begin(); MUNLOCK(&b, (a).capacity() * sizeof(float)); } } while(0);
++#endif
+ 
+ #ifdef __APPLE__
+ #include <libkern/OSAtomic.h>
+-- 
+2.7.0
+