Fix building problem under Linux ELF systems; no nlist.h

configure

@@ -1620,7 +1620,7 @@ else
 fi
 echo "$ac_t""$CPP" 1>&6
 
-for ac_hdr in libgen.h sys/timeb.h posix/time.h sys/select.h
+for ac_hdr in libgen.h sys/timeb.h posix/time.h sys/select.h nlist.h
 do
 ac_safe=`echo "$ac_hdr" | tr './\055' '___'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6

configure.in

@@ -328,7 +328,7 @@ AC_CHECK_LIB(dld, shl_findsym)
 dnl	AC_CHECK_LIB(mld, main)
 
 AC_RETSIGTYPE
-AC_HAVE_HEADERS(libgen.h sys/timeb.h posix/time.h sys/select.h)
+AC_HAVE_HEADERS(libgen.h sys/timeb.h posix/time.h sys/select.h nlist.h)
 AC_HAVE_FUNCS(strerror)
 AC_HAVE_FUNCS(dlopen gettimeofday ftime nlist select setitimer sigaction)
 AC_HAVE_FUNCS(socket chroot)

sysdep.h.in

@@ -44,6 +44,10 @@
    not-very-portable way of looking up external symbols. */
 #undef HAVE_NLIST
 
+/* Define if you have the nlist.h header file.  Some systems (linux)
+   have nlist, but not nlist.h */
+#undef HAVE_NLIST_H
+
 /* Define if struct nlist, defined in <nlist.h>, has an n_name component.
    If it doesn't then we expect it to have an n_un component. */
 #undef NLIST_HAS_N_NAME

unix.c

@@ -90,7 +90,7 @@
 #  include <sys/timeb.h>	/* for ftime() */
 #endif
 
-#if defined(HAVE_NLIST)
+#if defined(HAVE_NLIST_H)
 #  include <nlist.h>		/* conforms to "SVID2", whatever that is */
 #endif
 
@@ -665,4 +665,3 @@ get_reloc_file()
     return(NULL);
   }
 }
-