https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91092
Bug ID: 91092
Summary: Error on implicit function declarations by default
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: fw at gcc dot gnu.org
Target Milestone: ---
Once configure scripts have been cleaned up (and we have verified this for
Fedora and perhaps Debian), c99/gnu99/c11/gnu11 mode should all default to
emitting errors for implicit function declarations.
Implicit function declarations were removed from C99, but have been kept in GCC
so far, mainly for compatibility with existing configure checks (which give
wrong results if implicit function declarations are used in tests).
