audio/zynaddsubfx: Request for commit approval

[Hans Petter Selasky]

Fix build with GCC-based architectures.

PR:             235156
Submitted by:   Piotr Kubaj <pkubaj at anongoth.pl>
Approved by:

Index: Makefile
===================================================================
--- Makefile	(revision 491083)
+++ Makefile	(working copy)
@@ -19,7 +19,7 @@
  		libmxml.so:textproc/mxml \
  		liblo.so:audio/liblo

-USES=		tar:bzip2 cmake:insource pkgconfig
+USES=		compiler:c++11-lang tar:bzip2 cmake:insource pkgconfig
  USE_LDCONFIG=	yes

  OPTIONS_DEFINE=		OSS JACK GUI PORTAUDIO LASH DOCS EXAMPLES