configure changes

[Dave Dykstra]

On Sun, Oct 21, 2001 at 06:24:49PM -0700, Tim Rice wrote:
...
> I have added a test for broken dirname() on Solaris 2.5.1 by
> Dan Astoorian <djast at cs.toronto.edu>. Dan please test.

I tested it and found 3 problems:
    1. -lgen was not being passed to the test program.
    2. the wrong variable $ac_cv_have_getopt_optreset was being tested,
	should have been ac_cv_have_broken_dirname
    3. Can't define HAVE_LIBGEN_H because openbsd-compat/dirname.h defines
	the parameter with "const" but Solaris 2.5.1 libgen.h defines
	it without.

Patch is below.  I tested on Solaris 2.5.1 where it properly detected the
broken dirname and on Irix 6.2 where it found a working dirname in -lgen.

- Dave Dykstra


--- configure.in.O	Tue Oct 23 12:57:41 2001
+++ configure.in	Tue Oct 23 13:49:48 2001
@@ -430,7 +430,7 @@
 
 # Checks for header files.
 AC_CHECK_HEADERS(bstring.h crypt.h endian.h floatingpoint.h \
-	getopt.h glob.h lastlog.h libgen.h limits.h login.h \
+	getopt.h glob.h lastlog.h limits.h login.h \
 	login_cap.h maillock.h netdb.h netgroup.h \
 	netinet/in_systm.h paths.h poll.h pty.h regex.h \
 	security/pam_appl.h shadow.h stddef.h stdint.h \
@@ -584,6 +584,8 @@
 	AC_CHECK_LIB(gen, dirname,[
 		AC_CACHE_CHECK([for broken dirname],
 			ac_cv_have_broken_dirname, [
+			save_LIBS="$LIBS"
+			LIBS="$LIBS -lgen"
 			AC_TRY_RUN(
 				[
 #include <libgen.h>
@@ -604,10 +606,12 @@
 				[ ac_cv_have_broken_dirname="no" ],
 				[ ac_cv_have_broken_dirname="yes" ]
 			)
+			LIBS="$save_LIBS"
 		])
-		if test "x$ac_cv_have_getopt_optreset" = "xno" ; then
+		if test "x$ac_cv_have_broken_dirname" = "xno" ; then
 			LIBS="$LIBS -lgen"
 			AC_DEFINE(HAVE_DIRNAME)
+			AC_CHECK_HEADERS(libgen.h)
 		fi
 	])
 ])