diff --git a/Makefile.Linux b/Makefile.Linux
index 4d411f081e5..ca3c16fc1a3 100644
--- a/Makefile.Linux
+++ b/Makefile.Linux
@@ -5,6 +5,9 @@
 #
 #===-----------------------------------------------------------------------====#
 
+# Set the architecture so that x86 platform dependant code is compmiled
+ARCH := x86
+
 # MakeSharedObjectOption - This option is passed to the linker by
 # Makefile.common when compiling a shared object.
 #
diff --git a/Makefile.SunOS b/Makefile.SunOS
index e802173f96a..e9473637c7e 100644
--- a/Makefile.SunOS
+++ b/Makefile.SunOS
@@ -5,6 +5,9 @@
 #
 #===-----------------------------------------------------------------------====#
 
+# Set the architecture so that Sparc platform dependant code is compmiled
+ARCH := Sparc
+
 # MakeSharedObjectOption - This option is passed to the linker by
 # Makefile.common when compiling a shared object.
 #