diff --git a/selfcheck.sh b/selfcheck.sh
index 3518c65..9feb48a 100755
--- a/selfcheck.sh
+++ b/selfcheck.sh
@@ -3,4 +3,13 @@
 output=$(./simplecpp simplecpp.cpp -e 2>&1)
 ec=$?
 echo "$output" | grep -v 'Header not found: <'
-exit $ec
\ No newline at end of file
+exit $ec
+
+gcc_ver=$(gcc -dumpversion)
+./simplecpp simplecpp.cpp -e -f -D__GNUC__ -D__STDC__ -D__STDC_HOSTED__ -D__CHAR_BIT__=8 -I"/usr/include" -I"/usr/include/linux" -I"/usr/include/c++/$gcc_ver" -I"/usr/include/c++/$gcc_ver/x86_64-pc-linux-gnu" -I"/usr/lib64/gcc/x86_64-pc-linux-gnu/$gcc_ver/include"
+
+if [ -d "/usr/include/c++/v1" ]; then
+  #clang_ver=$(clang -dumpversion)
+  #clang_ver=${clang_ver%%.*}
+  ./simplecpp simplecpp.cpp -e -f -D__BYTE_ORDER__ -I"/usr/include/c++/v1"
+fi
\ No newline at end of file