Disabling build of static runtime since I can't seem to get a static …

…library libXaw.a (Athena widgets).

src/rts/GNUmakefile

@@ -398,8 +398,12 @@ DEPENDDIR	= depend/$(ARCH)/$(OS)
 ifeq "$(NTTYPE)" "TRUE"
 RUNTIMES	= runtime runtime-g runtime-windows runtime-windows-g
 else
+ifeq "$(OS)" "Linux"
+RUNTIMES	= runtime runtime-g
+else
 RUNTIMES	= runtime runtime-g runtime-static
 endif
+endif
 
 all: $(GENERATED) $(RUNTIMES)
 generated: $(GENERATED)
@@ -649,12 +653,15 @@ endif
 
 ifeq "$(NTTYPE)" "TRUE"
 else
+ifeq "$(OS)" "Linux" # Can't find libXaw.a on Ubuntu 12
+else
 $(TARGETDIR)/main-static: $(OBJECTSSTATIC)
 	@echo 'MAKE: $@'
 	@$(MKDIR) $(TARGETDIR) $(MKDIREND)
 	@$(LINK) -Xlinker -Bstatic $(LINKFLAGS)$@ $(OBJECTSSTATIC) $(LIBRARIESSTATIC) $(LINKENDFLAGS)
 	@$(STRIP) $@
 endif
+endif
 
 
 
@@ -758,10 +765,13 @@ endif
 
 ifeq "$(NTTYPE)" "TRUE"
 else
+ifeq "$(OS)" "Linux" # Can't find libXaw.a on Ubuntu 12
+else
 runtime-static: force $(TARGETDIR)/main-static
 	@$(RM) $@
 	$(LN) -s $(TARGETDIR)/main-static $@
 endif
+endif
 
 ifeq "$(OS)" "SunOS"
 runtime-g: old-runtime-g