AC_PATH_PROG([PGREP], [pgrep])
AM_CONDITIONAL([HAVE_PGREP], [test "x$PGREP" != "x"])
+AC_PATH_PROG([SHELLCHECK], [shellcheck])
+AM_CONDITIONAL([HAVE_SHELLCHECK], [test "x$SHELLCHECK" != "x"])
+
# set $IN_GIT_REPO if we're in the Git repository; the `bootstrap` file
# is not distributed in tarballs
AS_IF([test -f "$srcdir/bootstrap"], [in_git_repo=yes], [in_git_repo=no])