freedreno: use CXX linker rather than explicit link against libstdc++

Cc: Rob Clark <robclark@freedesktop.org>
Cc: "10.6" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

src/gallium/drivers/freedreno/Makefile.am

@@ -21,6 +21,8 @@ libfreedreno_la_SOURCES = \
 
 noinst_PROGRAMS = ir3_compiler
 
+# XXX: Required due to the C++ sources in libnir/libglsl_util
+nodist_EXTRA_ir3_compiler_SOURCES = dummy.cpp
 ir3_compiler_SOURCES = \
 	ir3/ir3_cmdline.c
 
@@ -29,7 +31,6 @@ ir3_compiler_LDADD = \
 	../../auxiliary/libgallium.la \
 	$(top_builddir)/src/glsl/libnir.la \
 	$(top_builddir)/src/libglsl_util.la \
-	-lstdc++ \
 	$(top_builddir)/src/util/libmesautil.la \
 	$(GALLIUM_COMMON_LIB_DEPS) \
 	$(FREEDRENO_LIBS)