From 3d90d399245c62521428b355c341c46190d1f52a Mon Sep 17 00:00:00 2001
From: hag <hag>
Date: Tue, 29 Oct 1996 23:22:20 +0000
Subject: [PATCH] Fix building problem under Linux ELF systems; no nlist.h

---
 configure    |  2 +-
 configure.in |  2 +-
 sysdep.h.in  |  4 ++++
 unix.c       | 17 ++++++++---------
 4 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/configure b/configure
index 50f073f..64bfb27 100755
--- a/configure
+++ b/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
diff --git a/configure.in b/configure.in
index 4ba38bc..dff9614 100644
--- a/configure.in
+++ b/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)
diff --git a/sysdep.h.in b/sysdep.h.in
index f5ae24b..a5c440e 100644
--- a/sysdep.h.in
+++ b/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
diff --git a/unix.c b/unix.c
index 3cd3770..9ae5742 100644
--- a/unix.c
+++ b/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
 
@@ -105,7 +105,7 @@ extern long Spending_interruptsS;
 
 static RETSIGTYPE
 when_keyboard_interrupt(sig, code, scp)
-     int sig, code; 
+     int sig, code;
      struct sigcontext *scp;
 {
   Spending_interruptsS |= (1 << INTERRUPT_KEYBOARD);
@@ -117,7 +117,7 @@ when_keyboard_interrupt(sig, code, scp)
 
 static RETSIGTYPE
 when_alarm_interrupt(sig, code, scp)
-     int sig, code; 
+     int sig, code;
      struct sigcontext *scp;
 {
   Spending_interruptsS |= (1 << INTERRUPT_ALARM);
@@ -148,7 +148,7 @@ sysdep_init()
    sa.sa_handler = SIG_IGN;
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;
-   sigaction(SIGPIPE, &sa, NULL);	
+   sigaction(SIGPIPE, &sa, NULL);
    }
 }
 
@@ -479,7 +479,7 @@ fill_the_table(void)
     fprintf(stderr, "Error during external name lookup\n");
     return;
   }
-  
+
   if ((f = ldopen(reloc_info_file, NULL)) == NULL) {
     fprintf(stderr, "Error during external name lookup\n");
     return;
@@ -522,7 +522,7 @@ fill_the_table(void)
 
   if (cur_entry)
     cur_entry->next = NULL;
-	
+
   ldclose(f);
 }
 
@@ -538,7 +538,7 @@ really_lookup_external_name(char *name)
   }
   return(0);
 }
-      
+
 long
 lookup_external_name(char *name, long *location)
 {
@@ -632,7 +632,7 @@ lookup_external_name(char *name, long *location)
 
   name_list[0].n_name = nm;
   name_list[1].n_name = 0;
-  
+
   status = nlist(reloc_info_file, name_list);
 
   if (status != 0 || (name_list[0].n_value  == 0
@@ -665,4 +665,3 @@ get_reloc_file()
     return(NULL);
   }
 }
-