Add missing build products to gitignore

.gitignore

@@ -11,6 +11,8 @@ ylwrap
 install-sh
 missing
 stamp-h1
+libtool
+ltmain.sh
 Makefile
 *.o
 *~

glcpp/.gitignore

@@ -2,6 +2,10 @@ glcpp
 glcpp-lex.c
 glcpp-parse.c
 glcpp-parse.h
+glcpp-parse.output
 *.o
+*.lo
+*.la
+.libs
 *~
 tests/*.out