diff --git a/tecmake.mak b/tecmake.mak
index 48991a4..42d7131 100755
--- a/tecmake.mak
+++ b/tecmake.mak
@@ -297,7 +297,7 @@ endif
 
 ifdef GTK_DEFAULT
   ifndef USE_GTK2
-    ifneq ($(findstring Linux5, $(TEC_UNAME)), )
+    ifneq ($(findstring Linux5, $(subst Linux6,Linux5,$(TEC_UNAME))), )
       USE_GTK3 = Yes
     endif
     ifneq ($(findstring Linux4, $(TEC_UNAME)), )
@@ -469,7 +469,7 @@ ifdef USE_LUA52
   LIBLUA_SFX := 52
 endif
 ifdef USE_LUA53
-  LIBLUA_SFX := 53
+#  LIBLUA_SFX := 53
 endif
 ifdef USE_LUA54
   LIBLUA_SFX := 54
@@ -877,8 +877,8 @@ ifdef USE_LUA52
 endif
 
 ifdef USE_LUA53
-  LUA_SFX := 53
-  LIBLUA_SFX := 53
+#  LUA_SFX := 53
+#  LIBLUA_SFX := 53
   override USE_LUA = Yes
   LUA := $(LUA53)
   NO_LUALIB := Yes
@@ -1207,7 +1207,7 @@ ifdef USE_CD
   ifneq ($(findstring Linux4, $(TEC_UNAME)), )
     LIBS += fontconfig
   endif
-  ifneq ($(findstring Linux5, $(TEC_UNAME)), )
+  ifneq ($(findstring Linux5, $(subst Linux6,Linux5,$(TEC_UNAME))), )
     LIBS += fontconfig
   endif
   ifneq ($(findstring cygw, $(TEC_UNAME)), )
@@ -1245,7 +1245,7 @@ ifdef USE_IM
 endif
 
 ifdef LINK_WEBKIT
-  ifneq ($(findstring Linux5, $(TEC_UNAME)), )
+  ifneq ($(findstring Linux5, $(subst Linux6,Linux5,$(TEC_UNAME))), )
     LIBS += webkit2gtk-4.0 gio-2.0
   else 
     ifneq ($(findstring Linux4, $(TEC_UNAME)), )
@@ -1476,7 +1476,7 @@ ifdef USE_GTK
     ifneq ($(findstring FreeBSD, $(TEC_UNAME)), )
       STDINCS += /lib/X11R6/include/gtk-2.0
     endif
-    ifneq ($(findstring Linux5, $(TEC_UNAME)), )
+    ifneq ($(findstring Linux5, $(subst Linux6,Linux5,$(TEC_UNAME))), )
       STDINCS += /usr/include/harfbuzz
     endif
   endif