diff -up gtkmathview-0.8.0/mathmlps/main.cc.gcc47 gtkmathview-0.8.0/mathmlps/main.cc
--- gtkmathview-0.8.0/mathmlps/main.cc.gcc47	2012-02-27 13:12:01.218602317 -0500
+++ gtkmathview-0.8.0/mathmlps/main.cc	2012-02-27 13:12:06.596555579 -0500
@@ -21,6 +21,13 @@
 #include <cstring>
 #include <cassert>
 #include <fstream>
+#ifdef __linux__
+/* to get getopt on Linux */
+#ifndef __USE_POSIX2
+#define __USE_POSIX2
+#endif
+#endif
+#include <unistd.h>
 
 #include <popt.h>
 
diff -up gtkmathview-0.8.0/mathmlsvg/main.cc.gcc47 gtkmathview-0.8.0/mathmlsvg/main.cc
--- gtkmathview-0.8.0/mathmlsvg/main.cc.gcc47	2012-02-27 13:10:33.335366105 -0500
+++ gtkmathview-0.8.0/mathmlsvg/main.cc	2012-02-27 13:10:33.374365766 -0500
@@ -21,6 +21,13 @@
 #include <cstring>
 #include <cassert>
 #include <fstream>
+#ifdef __linux__
+/* to get getopt on Linux */
+#ifndef __USE_POSIX2
+#define __USE_POSIX2
+#endif
+#endif
+#include <unistd.h>
 
 #include <popt.h>
 
diff -up gtkmathview-0.8.0/src/frontend/common/TemplateBuilder.hh.gcc47 gtkmathview-0.8.0/src/frontend/common/TemplateBuilder.hh
--- gtkmathview-0.8.0/src/frontend/common/TemplateBuilder.hh.gcc47	2007-08-17 06:02:34.000000000 -0400
+++ gtkmathview-0.8.0/src/frontend/common/TemplateBuilder.hh	2012-02-27 13:10:33.376365750 -0500
@@ -47,12 +47,13 @@ protected:
   SmartPtr<typename ElementBuilder::type>
   getElement(const typename Model::Element& el) const
   {
-    if (SmartPtr<typename ElementBuilder::type> elem = smart_cast<typename ElementBuilder::type>(linkerAssoc(el)))
+    SmartPtr<typename ElementBuilder::type> elem;
+    if (elem = smart_cast<typename ElementBuilder::type>(this->linkerAssoc(el)))
       return elem;
     else
       {
-	SmartPtr<typename ElementBuilder::type> elem = ElementBuilder::type::create(ElementBuilder::getContext(*this));
-	linkerAdd(el, elem);
+	elem = ElementBuilder::type::create(ElementBuilder::getContext(*this));
+	this->linkerAdd(el, elem);
 	return elem;
       }
   }
diff -up gtkmathview-0.8.0/src/frontend/common/TemplateElementIterator.hh.gcc47 gtkmathview-0.8.0/src/frontend/common/TemplateElementIterator.hh
--- gtkmathview-0.8.0/src/frontend/common/TemplateElementIterator.hh.gcc47	2007-08-17 06:02:34.000000000 -0400
+++ gtkmathview-0.8.0/src/frontend/common/TemplateElementIterator.hh	2012-02-27 13:10:33.377365741 -0500
@@ -43,7 +43,7 @@ protected:
   findValidNodeForward(const typename Model::Node& p0) const
   {
     for (typename Model::Node p = p0; p; p = Model::getNextSibling(p))
-      if (valid(p)) return Model::asElement(p);
+      if (this->valid(p)) return Model::asElement(p);
     return typename Model::Element();
   }