Given that some build systems try to encapsulate system headers separately from those found in /usr/include, primarily through careful arrangement of -I flags, it would be helpful if there was a warning flag, let's call it -Wstrict-header-path for now, which would signal when a source file tries to do the following:
#include "/usr/include/sys/stat.h" #include "../../../sys/stat.h" Ian Lance Taylor has indicated to me that this could be done as a check on fname in do_include_common in libcpp/directives.c. I would be willing to attempt a patch myself if this enhancement is accepted. -- Summary: Warning for absolute or dotted header paths Product: gcc Version: unknown Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: preprocessor AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: mbland at google dot com GCC build triplet: N/A GCC host triplet: N/A GCC target triplet: N/A http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26857