ifndef NO_GTK2
   ALL_PROGRAMS += $(OUTPUT)libperf-gtk.so
   GTK_IN := $(OUTPUT)gtk-in.o
-
-install-gtk: $(OUTPUT)libperf-gtk.so
-       $(call QUIET_INSTALL, 'GTK UI') \
-               $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'; \
-               $(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
 endif
 
 ifdef ASCIIDOC8
 
 ### Installation rules
 
+ifndef NO_GTK2
+install-gtk: $(OUTPUT)libperf-gtk.so
+       $(call QUIET_INSTALL, 'GTK UI') \
+               $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'; \
+               $(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
+else
 install-gtk:
+endif
 
 install-tools: all install-gtk
        $(call QUIET_INSTALL, binaries) \