kc3-lang/libffi

2022-06-25T18:58:53

configure.ac: use grep -E instead of egrep if possible (#720) Upstream will start to emit a warning if egrep is invoked in the next grep release. Stop invoking it explicitly. Use AC_PROG_EGREP to try "grep -E" first, and fallback to egrep if "grep -E" does not work. We need this fallback for some non-GNU grep implementations (like Solaris). Url: https://git.savannah.gnu.org/cgit/grep.git/commit/?id=a951562