From: Dan Harkless <dan@harkless.org>
Date: Tue, 25 Jan 2000 06:13:38 +0000 (+0000)
Subject: On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
X-Git-Tag: nmh-1_0~112
X-Git-Url: http://git.marmaro.de/?a=commitdiff_plain;ds=sidebyside;h=45274379ba9b2e9bb165a213bca5e5682c64cba0;p=mmh

On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
<stdio.h> or elsewhere.  Apparently it's not officially supported (though it
seems to work perfectly and IBM apparently uses it in internal code).  Anyhow,
if we omit our own snprintf() and vsnprintf() prototypes when we HAVE_SNPRINTF,
we get a billion warnings at compile time.  Use the C preprocessor to preprocess
stdio.h and make sure that there's actually a prototype.  Define
HAVE_SNPRINTF_PROTOTYPE if so, and use that to control our local prototype
definition.
---

diff --git a/acconfig.h b/acconfig.h
index 317e93e..dda87bf 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -263,3 +263,8 @@
 
 /* Define if your system has db1/ndbm.h instead of ndbm.h (ppclinux) */
 #undef HAVE_DB1_NDBM_H
+
+/* Define if your system actually has a prototype for snprintf() in <stdio.h>
+   (or a file it includes) rather than just having a "stealth" definition of it
+   in libc.a the way AIX 4.1 does. */
+#undef HAVE_SNPRINTF_PROTOTYPE
diff --git a/config.h.in b/config.h.in
index ae0684e..8486407 100644
--- a/config.h.in
+++ b/config.h.in
@@ -299,6 +299,11 @@
 /* Define if your system has gethostbyname */
 #undef HAVE_GETHOSTBYNAME
 
+/* Define if your system actually has a prototype for snprintf() in <stdio.h>
+   (or a file it includes) rather than just having a "stealth" definition of it
+   in libc.a the way AIX 4.1 does. */
+#undef HAVE_SNPRINTF_PROTOTYPE
+
 /* Define if you have the killpg function.  */
 #undef HAVE_KILLPG
 
diff --git a/configure b/configure
index eb9c392..c7b809b 100755
--- a/configure
+++ b/configure
@@ -2914,13 +2914,29 @@ done
 
 
 
+cat > conftest.$ac_ext <<EOF
+#line 2919 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "snprintf" >/dev/null 2>&1; then
+  rm -rf conftest*
+  cat >> confdefs.h <<\EOF
+#define HAVE_SNPRINTF_PROTOTYPE 1
+EOF
+
+fi
+rm -f conftest*
+
+
 echo $ac_n "checking for modf""... $ac_c" 1>&6
-echo "configure:2919: checking for modf" >&5
+echo "configure:2935: checking for modf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_modf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2924 "configure"
+#line 2940 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char modf(); below.  */
@@ -2943,7 +2959,7 @@ modf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2947: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2963: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_modf=yes"
 else
@@ -2961,7 +2977,7 @@ if eval "test \"`echo '$ac_cv_func_'modf`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for modf in -lm""... $ac_c" 1>&6
-echo "configure:2965: checking for modf in -lm" >&5
+echo "configure:2981: checking for modf in -lm" >&5
 ac_lib_var=`echo m'_'modf | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2969,7 +2985,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2973 "configure"
+#line 2989 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2980,7 +2996,7 @@ int main() {
 modf()
 ; return 0; }
 EOF
-if { (eval echo configure:2984: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3000: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3011,12 +3027,12 @@ fi
 
 
 echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:3015: checking for gethostbyname" >&5
+echo "configure:3031: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3020 "configure"
+#line 3036 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -3039,7 +3055,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3043: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3059: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -3057,7 +3073,7 @@ if eval "test \"`echo '$ac_cv_func_'gethostbyname`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:3061: checking for gethostbyname in -lnsl" >&5
+echo "configure:3077: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3065,7 +3081,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3069 "configure"
+#line 3085 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3076,7 +3092,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:3080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3096: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3102,7 +3118,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for gethostbyname in -lresolv""... $ac_c" 1>&6
-echo "configure:3106: checking for gethostbyname in -lresolv" >&5
+echo "configure:3122: checking for gethostbyname in -lresolv" >&5
 ac_lib_var=`echo resolv'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3110,7 +3126,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lresolv  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3114 "configure"
+#line 3130 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3121,7 +3137,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:3125: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3141: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3153,12 +3169,12 @@ fi
 fi
 
 echo $ac_n "checking for socket""... $ac_c" 1>&6
-echo "configure:3157: checking for socket" >&5
+echo "configure:3173: checking for socket" >&5
 if eval "test \"`echo '$''{'ac_cv_func_socket'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3162 "configure"
+#line 3178 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char socket(); below.  */
@@ -3181,7 +3197,7 @@ socket();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3185: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_socket=yes"
 else
@@ -3199,7 +3215,7 @@ if eval "test \"`echo '$ac_cv_func_'socket`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:3203: checking for socket in -lsocket" >&5
+echo "configure:3219: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3207,7 +3223,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3211 "configure"
+#line 3227 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3218,7 +3234,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:3222: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3238: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3250,12 +3266,12 @@ fi
 
 
 echo $ac_n "checking for ruserpass""... $ac_c" 1>&6
-echo "configure:3254: checking for ruserpass" >&5
+echo "configure:3270: checking for ruserpass" >&5
 if eval "test \"`echo '$''{'ac_cv_func_ruserpass'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3259 "configure"
+#line 3275 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char ruserpass(); below.  */
@@ -3278,7 +3294,7 @@ ruserpass();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3282: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3298: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_ruserpass=yes"
 else
@@ -3296,12 +3312,12 @@ if eval "test \"`echo '$ac_cv_func_'ruserpass`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for _ruserpass""... $ac_c" 1>&6
-echo "configure:3300: checking for _ruserpass" >&5
+echo "configure:3316: checking for _ruserpass" >&5
 if eval "test \"`echo '$''{'ac_cv_func__ruserpass'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3305 "configure"
+#line 3321 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char _ruserpass(); below.  */
@@ -3324,7 +3340,7 @@ _ruserpass();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3328: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3344: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func__ruserpass=yes"
 else
@@ -3342,7 +3358,7 @@ if eval "test \"`echo '$ac_cv_func_'_ruserpass`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for _ruserpass in -lsocket""... $ac_c" 1>&6
-echo "configure:3346: checking for _ruserpass in -lsocket" >&5
+echo "configure:3362: checking for _ruserpass in -lsocket" >&5
 ac_lib_var=`echo socket'_'_ruserpass | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3350,7 +3366,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3354 "configure"
+#line 3370 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3361,7 +3377,7 @@ int main() {
 _ruserpass()
 ; return 0; }
 EOF
-if { (eval echo configure:3365: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3381: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3407,7 +3423,7 @@ fi
 termcap_curses_order="termcap curses ncurses"
 for lib in $termcap_curses_order; do
   echo $ac_n "checking for tgetent in -l${lib}""... $ac_c" 1>&6
-echo "configure:3411: checking for tgetent in -l${lib}" >&5
+echo "configure:3427: checking for tgetent in -l${lib}" >&5
 ac_lib_var=`echo ${lib}'_'tgetent | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3415,7 +3431,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l${lib}  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3419 "configure"
+#line 3435 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3426,7 +3442,7 @@ int main() {
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:3430: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3446: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3450,12 +3466,12 @@ done
 
 
 echo $ac_n "checking for dbm_open""... $ac_c" 1>&6
-echo "configure:3454: checking for dbm_open" >&5
+echo "configure:3470: checking for dbm_open" >&5
 if eval "test \"`echo '$''{'ac_cv_func_dbm_open'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3459 "configure"
+#line 3475 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char dbm_open(); below.  */
@@ -3478,7 +3494,7 @@ dbm_open();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3482: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3498: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_dbm_open=yes"
 else
@@ -3496,7 +3512,7 @@ if eval "test \"`echo '$ac_cv_func_'dbm_open`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for dbm_open in -lndbm""... $ac_c" 1>&6
-echo "configure:3500: checking for dbm_open in -lndbm" >&5
+echo "configure:3516: checking for dbm_open in -lndbm" >&5
 ac_lib_var=`echo ndbm'_'dbm_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3504,7 +3520,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lndbm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3508 "configure"
+#line 3524 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3515,7 +3531,7 @@ int main() {
 dbm_open()
 ; return 0; }
 EOF
-if { (eval echo configure:3519: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3535: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3541,7 +3557,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for dbm_open in -ldbm""... $ac_c" 1>&6
-echo "configure:3545: checking for dbm_open in -ldbm" >&5
+echo "configure:3561: checking for dbm_open in -ldbm" >&5
 ac_lib_var=`echo dbm'_'dbm_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3549,7 +3565,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldbm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3553 "configure"
+#line 3569 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3560,7 +3576,7 @@ int main() {
 dbm_open()
 ; return 0; }
 EOF
-if { (eval echo configure:3564: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3596,17 +3612,17 @@ for ac_hdr in db1/ndbm.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:3600: checking for $ac_hdr" >&5
+echo "configure:3616: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3605 "configure"
+#line 3621 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3610: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3626: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3639,12 +3655,12 @@ if test x$with_hesiod != x -a x$with_hesiod != xno; then
     HESIOD_LIBS="-L$with_hesiod/lib"
   fi
   echo $ac_n "checking for res_send""... $ac_c" 1>&6
-echo "configure:3643: checking for res_send" >&5
+echo "configure:3659: checking for res_send" >&5
 if eval "test \"`echo '$''{'ac_cv_func_res_send'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3648 "configure"
+#line 3664 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char res_send(); below.  */
@@ -3667,7 +3683,7 @@ res_send();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3671: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3687: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_res_send=yes"
 else
@@ -3685,7 +3701,7 @@ if eval "test \"`echo '$ac_cv_func_'res_send`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for res_send in -lresolv""... $ac_c" 1>&6
-echo "configure:3689: checking for res_send in -lresolv" >&5
+echo "configure:3705: checking for res_send in -lresolv" >&5
 ac_lib_var=`echo resolv'_'res_send | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3693,7 +3709,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lresolv  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3697 "configure"
+#line 3713 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3704,7 +3720,7 @@ int main() {
 res_send()
 ; return 0; }
 EOF
-if { (eval echo configure:3708: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3724: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3734,7 +3750,7 @@ fi
 fi
 
   echo $ac_n "checking for hes_resolve in -lhesiod""... $ac_c" 1>&6
-echo "configure:3738: checking for hes_resolve in -lhesiod" >&5
+echo "configure:3754: checking for hes_resolve in -lhesiod" >&5
 ac_lib_var=`echo hesiod'_'hes_resolve | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3742,7 +3758,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lhesiod $HESIOD_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3746 "configure"
+#line 3762 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3753,7 +3769,7 @@ int main() {
 hes_resolve()
 ; return 0; }
 EOF
-if { (eval echo configure:3757: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3773: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3787,7 +3803,7 @@ if test x$with_krb4 != x -a x$with_krb4 != xno; then
     KRB4_INCLUDES="-I/usr/include/kerberosIV"
   fi
   echo $ac_n "checking for krb_rd_req in -lkrb4""... $ac_c" 1>&6
-echo "configure:3791: checking for krb_rd_req in -lkrb4" >&5
+echo "configure:3807: checking for krb_rd_req in -lkrb4" >&5
 ac_lib_var=`echo krb4'_'krb_rd_req | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3795,7 +3811,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lkrb4 $KRB4_LIBS -ldes425 -lkrb5 -lcrypto -lcom_err $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3799 "configure"
+#line 3815 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3806,7 +3822,7 @@ int main() {
 krb_rd_req()
 ; return 0; }
 EOF
-if { (eval echo configure:3810: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3826: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3825,7 +3841,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for krb_rd_req in -lkrb""... $ac_c" 1>&6
-echo "configure:3829: checking for krb_rd_req in -lkrb" >&5
+echo "configure:3845: checking for krb_rd_req in -lkrb" >&5
 ac_lib_var=`echo krb'_'krb_rd_req | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3833,7 +3849,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lkrb $KRB4_LIBS -ldes $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3837 "configure"
+#line 3853 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3844,7 +3860,7 @@ int main() {
 krb_rd_req()
 ; return 0; }
 EOF
-if { (eval echo configure:3848: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3864: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3874,12 +3890,12 @@ nmh_save_LIBS="$LIBS"
 LIBS="$TERMLIB $LIBS"
 
 echo $ac_n "checking if an include file defines ospeed""... $ac_c" 1>&6
-echo "configure:3878: checking if an include file defines ospeed" >&5
+echo "configure:3894: checking if an include file defines ospeed" >&5
 if eval "test \"`echo '$''{'nmh_cv_decl_ospeed_include_defines'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3883 "configure"
+#line 3899 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if HAVE_TERMIOS_H
@@ -3892,7 +3908,7 @@ int main() {
 ospeed = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:3896: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3912: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   nmh_cv_decl_ospeed_include_defines=yes
 else
@@ -3908,19 +3924,19 @@ echo "$ac_t""$nmh_cv_decl_ospeed_include_defines" 1>&6
  
 if test $nmh_cv_decl_ospeed_include_defines = no; then
   echo $ac_n "checking if you must define ospeed""... $ac_c" 1>&6
-echo "configure:3912: checking if you must define ospeed" >&5
+echo "configure:3928: checking if you must define ospeed" >&5
 if eval "test \"`echo '$''{'nmh_cv_decl_ospeed_must_define'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3917 "configure"
+#line 3933 "configure"
 #include "confdefs.h"
 
 int main() {
 extern short ospeed; ospeed = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:3924: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3940: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   nmh_cv_decl_ospeed_must_define=yes
 else
@@ -3955,12 +3971,12 @@ fi
 LIBS="$nmh_save_LIBS"
 
 echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
-echo "configure:3959: checking return type of signal handlers" >&5
+echo "configure:3975: checking return type of signal handlers" >&5
 if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3964 "configure"
+#line 3980 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -3977,7 +3993,7 @@ int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:3981: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_type_signal=void
 else
@@ -3996,12 +4012,12 @@ EOF
 
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:4000: checking for pid_t" >&5
+echo "configure:4016: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4005 "configure"
+#line 4021 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4029,12 +4045,12 @@ EOF
 fi
 
 echo $ac_n "checking for off_t""... $ac_c" 1>&6
-echo "configure:4033: checking for off_t" >&5
+echo "configure:4049: checking for off_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4038 "configure"
+#line 4054 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4062,12 +4078,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:4066: checking for uid_t in sys/types.h" >&5
+echo "configure:4082: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4071 "configure"
+#line 4087 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -4096,12 +4112,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:4100: checking for mode_t" >&5
+echo "configure:4116: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4105 "configure"
+#line 4121 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4129,12 +4145,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:4133: checking for size_t" >&5
+echo "configure:4149: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4138 "configure"
+#line 4154 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -4163,12 +4179,12 @@ fi
 
 
 echo $ac_n "checking for sigset_t""... $ac_c" 1>&6
-echo "configure:4167: checking for sigset_t" >&5
+echo "configure:4183: checking for sigset_t" >&5
 if eval "test \"`echo '$''{'nmh_cv_type_sigset_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4172 "configure"
+#line 4188 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -4176,7 +4192,7 @@ int main() {
 sigset_t tempsigset;
 ; return 0; }
 EOF
-if { (eval echo configure:4180: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4196: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   nmh_cv_type_sigset_t=yes
 else
@@ -4197,12 +4213,12 @@ EOF
 fi
 
 echo $ac_n "checking for st_blksize in struct stat""... $ac_c" 1>&6
-echo "configure:4201: checking for st_blksize in struct stat" >&5
+echo "configure:4217: checking for st_blksize in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blksize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4206 "configure"
+#line 4222 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -4210,7 +4226,7 @@ int main() {
 struct stat s; s.st_blksize;
 ; return 0; }
 EOF
-if { (eval echo configure:4214: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4230: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blksize=yes
 else
@@ -4232,12 +4248,12 @@ fi
 
 
 echo $ac_n "checking for tm_gmtoff in struct tm""... $ac_c" 1>&6
-echo "configure:4236: checking for tm_gmtoff in struct tm" >&5
+echo "configure:4252: checking for tm_gmtoff in struct tm" >&5
 if eval "test \"`echo '$''{'nmh_cv_struct_tm_gmtoff'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4241 "configure"
+#line 4257 "configure"
 #include "confdefs.h"
 #ifdef TIME_WITH_SYS_TIME
 # include <sys/time.h>
@@ -4253,7 +4269,7 @@ int main() {
 struct tm temptm; temptm.tm_gmtoff = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:4257: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4273: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   nmh_cv_struct_tm_gmtoff=yes
 else
@@ -4274,7 +4290,7 @@ EOF
 fi
 
 echo $ac_n "checking what style of signals to use""... $ac_c" 1>&6
-echo "configure:4278: checking what style of signals to use" >&5
+echo "configure:4294: checking what style of signals to use" >&5
 if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
   signals_style=POSIX_SIGNALS
   cat >> confdefs.h <<\EOF
@@ -4312,7 +4328,7 @@ fi
 echo "$ac_t""$signals_style" 1>&6
 
 echo $ac_n "checking where signal.h is located""... $ac_c" 1>&6
-echo "configure:4316: checking where signal.h is located" >&5
+echo "configure:4332: checking where signal.h is located" >&5
 if eval "test \"`echo '$''{'nmh_cv_path_signal_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
diff --git a/configure.in b/configure.in
index 35c2212..1910558 100644
--- a/configure.in
+++ b/configure.in
@@ -377,6 +377,15 @@ AC_TRY_LINK([#include <setjmp.h>], [sigsetjmp((void *)0, 0);],
 
 AC_REPLACE_FUNCS(snprintf strerror strdup)
 
+dnl On AIX 4.1, snprintf() is defined in libc.a but there's no prototype in
+dnl <stdio.h> or elsewhere.  Apparently it's not officially supported (though it
+dnl seems to work perfectly and IBM apparently uses it in internal code).
+dnl Anyhow, if we omit our own snprintf() and vsnprintf() prototypes when we
+dnl HAVE_SNPRINTF, we get a billion warnings at compile time.  Use the C
+dnl preprocessor to preprocess stdio.h and make sure that there's actually a 
+dnl prototype. 
+AC_EGREP_HEADER(snprintf, stdio.h, AC_DEFINE(HAVE_SNPRINTF_PROTOTYPE))
+
 dnl -------------------
 dnl CHECK FOR LIBRARIES
 dnl -------------------
diff --git a/stamp-h.in b/stamp-h.in
index 8b13789..e69de29 100644
--- a/stamp-h.in
+++ b/stamp-h.in
@@ -1 +0,0 @@
-