Switch off strict-aliasing until swig is fixed to produce code that doesn't
break the rules.

================================================================================
--- tclpkg/gv/Makefile.am
+++ tclpkg/gv/Makefile.am
@@ -66,6 +66,7 @@
 libgv_lua_la_SOURCES = $(BASESOURCES) gv_dummy_init.cpp
 libgv_lua_la_LIBADD = $(BASELIBS) @LUA_LIBS@
 libgv_lua_la_LDFLAGS = -module -avoid-version
+libgv_lua_la_CXXFLAGS = -fno-strict-aliasing
 $(LUA_data): gv_lua.cpp
 gv_lua.cpp: gv.i
 	$(SWIG) -c++ -lua -o gv_lua.cpp $(srcdir)/gv.i
@@ -78,6 +79,7 @@
 nodist_libgv_ocaml_la_SOURCES = gv_ocaml.cpp $(OCAML_data)
 libgv_ocaml_la_SOURCES = $(BASESOURCES) gv_dummy_init.cpp
 libgv_ocaml_la_LIBADD = $(BASELIBS) @OCAML_LIBS@
+libgv_ocaml_la_CXXFLAGS = -fno-strict-aliasing
 libgv_ocaml_la_LDFLAGS = -module -avoid-version
 gv.ml gv.mli: gv_ocaml.cpp
 gv_ocaml.cpp: gv.i
@@ -106,6 +108,7 @@
 PERL_data = gv.pm
 nodist_libgv_perl_la_SOURCES = gv_perl.cpp $(PERL_data)
 libgv_perl_la_SOURCES = $(BASESOURCES) gv_dummy_init.cpp
+libgv_perl_la_CXXFLAGS = -fno-strict-aliasing
 libgv_perl_la_LIBADD = $(BASELIBS) @PERL_LIBS@
 libgv_perl_la_LDFLAGS = -module -avoid-version
 $(PERL_data): gv_perl.cpp
@@ -117,6 +120,7 @@
 nodist_libgv_php_la_SOURCES = gv_php.cpp php_gv.h
 libgv_php_la_SOURCES = $(BASESOURCES) gv_php_init.cpp
 libgv_php_la_LIBADD = $(BASELIBS) @PHP_LIBS@
+libgv_php_la_CXXFLAGS = -fno-strict-aliasing
 libgv_php_la_LDFLAGS = -module -avoid-version
 gv.php: gv_php.cpp
 php_gv.h: gv_php.cpp