(check-texinfo): Don't fail if perl is missing.

diff --git a/doc/Makefile.am b/doc/Makefile.am
index 0856c77..c7b098f 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -30,10 +30,12 @@ $(INFO_DEPS): $(EXTRA_DIST)
 
 # List words/regexps here that should not appear in the texinfo documentation.
 check-texinfo:
-       grep timezone $(srcdir)/*.texi && exit 1 || :
-       grep '\$$@"' $(srcdir)/*.texi && exit 1 || :
-       $(PERL) -ne \
+       fail=0; \
+       grep timezone $(srcdir)/*.texi && fail=1; \
+       grep '\$$@"' $(srcdir)/*.texi && fail=1; \
+       $(PERL) -e 1 && { $(PERL) -ne \
          '/\bPOSIX\b/ && !/\@acronym{POSIX}/ && !/^\* / || /{posix}/ and print,exit 1' \
-         $(srcdir)/*.texi 2> /dev/null && : || exit 1
+         $(srcdir)/*.texi 2> /dev/null || fail=1; }; \
+       exit $$fail
 
 check: check-texinfo