POSIX allows PATH_MAX to not be defined, meaning "unlimited".

Found by Aaron M. Ucko <amu at alum dot mit dot edu> on the GNU Hurd,
via Bdale Garbee, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829624

Also add EFTYPE at two places where it was forgotten.

1 files changed, 3 insertions, 0 deletions

diff --git a/configure b/configure
index f3ad8d3d..def91028 100755
--- a/configure
+++ b/configure
@@ -58,6 +58,7 @@ HAVE_ISBLANK=
 HAVE_MKDTEMP=
 HAVE_NANOSLEEP=
 HAVE_OHASH=
+HAVE_PATH_MAX=
 HAVE_PLEDGE=
 HAVE_PROGNAME=
 HAVE_REALLOCARRAY=
@@ -203,6 +204,7 @@ runtest getline		GETLINE		|| true
 runtest getsubopt	GETSUBOPT	|| true
 runtest isblank		ISBLANK		|| true
 runtest mkdtemp		MKDTEMP		|| true
+runtest PATH_MAX	PATH_MAX	|| true
 runtest pledge		PLEDGE		|| true
 runtest sandbox_init	SANDBOX_INIT	|| true
 runtest progname	PROGNAME	|| true
@@ -293,6 +295,7 @@ echo "#define MANPATH_DEFAULT \"${MANPATH_DEFAULT}\""
 [ -n "${UTF8_LOCALE}" ] && echo "#define UTF8_LOCALE \"${UTF8_LOCALE}\""
 [ -n "${HOMEBREWDIR}" ] && echo "#define HOMEBREWDIR \"${HOMEBREWDIR}\""
 [ ${HAVE_EFTYPE} -eq 0 ] && echo "#define EFTYPE EINVAL"
+[ ${HAVE_PATH_MAX} -eq 0 ] && echo "#define PATH_MAX 4096"
 
 cat << __HEREDOC__
 #define HAVE_DIRENT_NAMLEN ${HAVE_DIRENT_NAMLEN}