Synopsis: -I/usr/include change compiler behavior to something like -pedantic-errors State-Changed-From-To: open->closed State-Changed-By: aoliva State-Changed-When: Mon Jul 30 13:58:07 2001 State-Changed-Why: Look for -I/usr/include in the GCC manual. This is documented behavior. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=3879&database=gcc