mirror of
https://github.com/libgit2/libgit2.git
synced 2026-06-22 06:26:26 +00:00
cacbf99889
GCC 7 has introduced new warnings for implicit fallthrough in switch statements. Whenever there is no branch in a case block, GCC will watch out for some heuristics which indicate that the implicit fallthrough is intended, like a "fallthrough" comment. The third-party http-parser code manages to trick this heuristic in one case, even though there is a "FALLTHROUGH" comment. Fortunately, GCC has also added a strictness level to the -Wimplicit-fallthrough diagnostic, such that we can loosen this heuristic and make it more lax. Set -Wimplicit-fallthrough=1 in http-parser's CMake build instructions, which is the strictest level that gets rid of the warning. This level will treat any kind of comment as a "fallthrough" comment, which silences the warning.