From: Stelian Pop <stelian@popies.net>
Date: Tue, 11 Feb 2003 09:26:34 +0000 (+0000)
Subject: Fixed the configure scripts to only check not build headers
X-Git-Tag: release_0_4b34~18
X-Git-Url: https://git.wh0rd.org/?p=dump.git;a=commitdiff_plain;h=d3e542e79b851bab1b4cc7482694d413c42c6e63

Fixed the configure scripts to only check not build headers
---

diff --git a/CHANGES b/CHANGES
index ba33b54..906deb4 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,4 @@
-$Id: CHANGES,v 1.212 2003/02/11 08:57:41 stelian Exp $
+$Id: CHANGES,v 1.213 2003/02/11 09:26:34 stelian Exp $
 
 Changes between versions 0.4b33 and 0.4b34 (released ?????????????????)
 =======================================================================
@@ -7,6 +7,11 @@ Changes between versions 0.4b33 and 0.4b34 (released ?????????????????)
 	Thanks to David Ronis <ronis@ronispc.chem.mcgill.ca> for
 	reporting the bug.
 
+2.	Fixed the configure script to only check for headers presence
+	instead of trying to compile them. This should fix issues
+	with old build environments. Thanks to Kari Lempiainen 
+	<kari@funky.pp.fi> for reporting the bug.
+
 Changes between versions 0.4b32 and 0.4b33 (released February 10, 2003)
 =======================================================================
 
diff --git a/THANKS b/THANKS
index 5177bac..f514f9b 100644
--- a/THANKS
+++ b/THANKS
@@ -1,4 +1,4 @@
-$Id: THANKS,v 1.75 2003/02/11 08:57:41 stelian Exp $
+$Id: THANKS,v 1.76 2003/02/11 09:26:35 stelian Exp $
 
 Dump and restore were written by the people of the CSRG at the University
 of California, Berkeley.
@@ -63,6 +63,7 @@ Dragan Krnic		dkrnic@lycos.com
 Klaus Kudielka		kkudielk@cacofonix.nt.tuwien.ac.at
 Thorsten Kukuk		kukuk@suse.de
 Florian La Roche	florian@jurix.jura.uni-sb.de
+Kari Lempiainen		kari@funky.pp.fi
 Ambrose Li		acli@mingpaoxpress.com
 Georg Lippold		g_lippold@sourceforge.net
 Patrick J. LoPresti	patl@cag.lcs.mit.edu
diff --git a/configure b/configure
index df1c137..44d223e 100755
--- a/configure
+++ b/configure
@@ -3010,247 +3010,12 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-echo "$as_me:$LINENO: checking for ANSI C header files" >&5
-echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
-if test "${ac_cv_header_stdc+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
-  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
-  ac_status=$?
-  egrep -v '^ *\+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null; then
-  if test -s conftest.err; then
-    ac_cpp_err=$ac_c_preproc_warn_flag
-  else
-    ac_cpp_err=
-  fi
-else
-  ac_cpp_err=yes
-fi
-if test -z "$ac_cpp_err"; then
-  ac_cv_header_stdc=yes
-else
-  echo "$as_me: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  ac_cv_header_stdc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-#include <string.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  egrep "memchr" >/dev/null 2>&1; then
-  :
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  egrep "free" >/dev/null 2>&1; then
-  :
-else
-  ac_cv_header_stdc=no
-fi
-rm -f conftest*
-
-fi
-
-if test $ac_cv_header_stdc = yes; then
-  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then
-  :
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-#include <ctype.h>
-#if ((' ' & 0x0FF) == 0x020)
-# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
-# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
-#else
-# define ISLOWER(c) (('a' <= (c) && (c) <= 'i') \
-                     || ('j' <= (c) && (c) <= 'r') \
-                     || ('s' <= (c) && (c) <= 'z'))
-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
-int
-main ()
-{
-  int i;
-  for (i = 0; i < 256; i++)
-    if (XOR (islower (i), ISLOWER (i))
-        || toupper (i) != TOUPPER (i))
-      exit(2);
-  exit (0);
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  :
-else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-( exit $ac_status )
-ac_cv_header_stdc=no
-fi
-rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
-echo "${ECHO_T}$ac_cv_header_stdc" >&6
-if test $ac_cv_header_stdc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
-
-fi
-
-# On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
-                  inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-$ac_includes_default
-
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  eval "$as_ac_Header=yes"
-else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-eval "$as_ac_Header=no"
-fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-
-done
-
-
-if test "${ac_cv_header_ext2fs_ext2fs_h+set}" = set; then
-  echo "$as_me:$LINENO: checking for ext2fs/ext2fs.h" >&5
+echo "$as_me:$LINENO: checking for ext2fs/ext2fs.h" >&5
 echo $ECHO_N "checking for ext2fs/ext2fs.h... $ECHO_C" >&6
 if test "${ac_cv_header_ext2fs_ext2fs_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_ext2fs_ext2fs_h" >&5
-echo "${ECHO_T}$ac_cv_header_ext2fs_ext2fs_h" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking ext2fs/ext2fs.h usability" >&5
-echo $ECHO_N "checking ext2fs/ext2fs.h usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-$ac_includes_default
-#include <ext2fs/ext2fs.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
 else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-ac_header_compiler=no
-fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking ext2fs/ext2fs.h presence" >&5
-echo $ECHO_N "checking ext2fs/ext2fs.h presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 #include <ext2fs/ext2fs.h>
@@ -3272,42 +3037,16 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
+  ac_cv_header_ext2fs_ext2fs_h=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  ac_header_preproc=no
+  ac_cv_header_ext2fs_ext2fs_h=no
 fi
 rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc in
-  yes:no )
-    { echo "$as_me:$LINENO: WARNING: ext2fs/ext2fs.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: ext2fs/ext2fs.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ext2fs/ext2fs.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: ext2fs/ext2fs.h: proceeding with the preprocessor's result" >&2;};;
-  no:yes )
-    { echo "$as_me:$LINENO: WARNING: ext2fs/ext2fs.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: ext2fs/ext2fs.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ext2fs/ext2fs.h: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: ext2fs/ext2fs.h: check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ext2fs/ext2fs.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: ext2fs/ext2fs.h: proceeding with the preprocessor's result" >&2;};;
-esac
-echo "$as_me:$LINENO: checking for ext2fs/ext2fs.h" >&5
-echo $ECHO_N "checking for ext2fs/ext2fs.h... $ECHO_C" >&6
-if test "${ac_cv_header_ext2fs_ext2fs_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_header_ext2fs_ext2fs_h=$ac_header_preproc
 fi
 echo "$as_me:$LINENO: result: $ac_cv_header_ext2fs_ext2fs_h" >&5
 echo "${ECHO_T}$ac_cv_header_ext2fs_ext2fs_h" >&6
-
-fi
 if test $ac_cv_header_ext2fs_ext2fs_h = yes; then
   ext2fs_h=yes
 else
@@ -3386,50 +3125,12 @@ fi
 for ac_header in ext2fs/ext2_fs.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo "$as_me:$LINENO: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
-else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-ac_header_compiler=no
-fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 #include <$ac_header>
@@ -3451,42 +3152,16 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
+  eval "$as_ac_Header=yes"
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  ac_header_preproc=no
+  eval "$as_ac_Header=no"
 fi
 rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc in
-  yes:no )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
-  no:yes )
-    { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
-esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  eval "$as_ac_Header=$ac_header_preproc"
 fi
 echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
 if test `eval echo '${'$as_ac_Header'}'` = yes; then
   cat >>confdefs.h <<_ACEOF
 #define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
@@ -3668,50 +3343,12 @@ echo "$as_me: error: You need to install the GNU termcap library or configure wi
 	fi
 fi
 
-if test "${ac_cv_header_readline_readline_h+set}" = set; then
-  echo "$as_me:$LINENO: checking for readline/readline.h" >&5
+echo "$as_me:$LINENO: checking for readline/readline.h" >&5
 echo $ECHO_N "checking for readline/readline.h... $ECHO_C" >&6
 if test "${ac_cv_header_readline_readline_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_readline_readline_h" >&5
-echo "${ECHO_T}$ac_cv_header_readline_readline_h" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking readline/readline.h usability" >&5
-echo $ECHO_N "checking readline/readline.h usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-$ac_includes_default
-#include <readline/readline.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
 else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-ac_header_compiler=no
-fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking readline/readline.h presence" >&5
-echo $ECHO_N "checking readline/readline.h presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 #include <readline/readline.h>
@@ -3733,42 +3370,16 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
+  ac_cv_header_readline_readline_h=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  ac_header_preproc=no
+  ac_cv_header_readline_readline_h=no
 fi
 rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc in
-  yes:no )
-    { echo "$as_me:$LINENO: WARNING: readline/readline.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: readline/readline.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: readline/readline.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: readline/readline.h: proceeding with the preprocessor's result" >&2;};;
-  no:yes )
-    { echo "$as_me:$LINENO: WARNING: readline/readline.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: readline/readline.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: readline/readline.h: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: readline/readline.h: check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: readline/readline.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: readline/readline.h: proceeding with the preprocessor's result" >&2;};;
-esac
-echo "$as_me:$LINENO: checking for readline/readline.h" >&5
-echo $ECHO_N "checking for readline/readline.h... $ECHO_C" >&6
-if test "${ac_cv_header_readline_readline_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_header_readline_readline_h=$ac_header_preproc
 fi
 echo "$as_me:$LINENO: result: $ac_cv_header_readline_readline_h" >&5
 echo "${ECHO_T}$ac_cv_header_readline_readline_h" >&6
-
-fi
 if test $ac_cv_header_readline_readline_h = yes; then
   readline_h=yes
 else
@@ -3975,56 +3586,18 @@ else
 fi
 
 if test "$rcac" = yes; then
-	cat >>confdefs.h <<\_ACEOF
-#define HAVE_READLINE_CAC 1
-_ACEOF
-
-fi
-
-if test "${ac_cv_header_zlib_h+set}" = set; then
-  echo "$as_me:$LINENO: checking for zlib.h" >&5
-echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6
-if test "${ac_cv_header_zlib_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_zlib_h" >&5
-echo "${ECHO_T}$ac_cv_header_zlib_h" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking zlib.h usability" >&5
-echo $ECHO_N "checking zlib.h usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-$ac_includes_default
-#include <zlib.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
-else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-ac_header_compiler=no
+	cat >>confdefs.h <<\_ACEOF
+#define HAVE_READLINE_CAC 1
+_ACEOF
+
 fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
 
-# Is the header present?
-echo "$as_me:$LINENO: checking zlib.h presence" >&5
-echo $ECHO_N "checking zlib.h presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+echo "$as_me:$LINENO: checking for zlib.h" >&5
+echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6
+if test "${ac_cv_header_zlib_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 #include <zlib.h>
@@ -4046,42 +3619,16 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
+  ac_cv_header_zlib_h=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  ac_header_preproc=no
+  ac_cv_header_zlib_h=no
 fi
 rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc in
-  yes:no )
-    { echo "$as_me:$LINENO: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: zlib.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: zlib.h: proceeding with the preprocessor's result" >&2;};;
-  no:yes )
-    { echo "$as_me:$LINENO: WARNING: zlib.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: zlib.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: zlib.h: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: zlib.h: check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: zlib.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: zlib.h: proceeding with the preprocessor's result" >&2;};;
-esac
-echo "$as_me:$LINENO: checking for zlib.h" >&5
-echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6
-if test "${ac_cv_header_zlib_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_header_zlib_h=$ac_header_preproc
 fi
 echo "$as_me:$LINENO: result: $ac_cv_header_zlib_h" >&5
 echo "${ECHO_T}$ac_cv_header_zlib_h" >&6
-
-fi
 if test $ac_cv_header_zlib_h = yes; then
   zlib_h=yes
 else
@@ -4161,50 +3708,12 @@ else
 fi
 
 
-if test "${ac_cv_header_bzlib_h+set}" = set; then
-  echo "$as_me:$LINENO: checking for bzlib.h" >&5
+echo "$as_me:$LINENO: checking for bzlib.h" >&5
 echo $ECHO_N "checking for bzlib.h... $ECHO_C" >&6
 if test "${ac_cv_header_bzlib_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: $ac_cv_header_bzlib_h" >&5
-echo "${ECHO_T}$ac_cv_header_bzlib_h" >&6
-else
-  # Is the header compilable?
-echo "$as_me:$LINENO: checking bzlib.h usability" >&5
-echo $ECHO_N "checking bzlib.h usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-#include "confdefs.h"
-$ac_includes_default
-#include <bzlib.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_header_compiler=yes
 else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-ac_header_compiler=no
-fi
-rm -f conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
-
-# Is the header present?
-echo "$as_me:$LINENO: checking bzlib.h presence" >&5
-echo $ECHO_N "checking bzlib.h presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 #include <bzlib.h>
@@ -4226,42 +3735,16 @@ else
   ac_cpp_err=yes
 fi
 if test -z "$ac_cpp_err"; then
-  ac_header_preproc=yes
+  ac_cv_header_bzlib_h=yes
 else
   echo "$as_me: failed program was:" >&5
   cat conftest.$ac_ext >&5
-  ac_header_preproc=no
+  ac_cv_header_bzlib_h=no
 fi
 rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc in
-  yes:no )
-    { echo "$as_me:$LINENO: WARNING: bzlib.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: bzlib.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: bzlib.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: bzlib.h: proceeding with the preprocessor's result" >&2;};;
-  no:yes )
-    { echo "$as_me:$LINENO: WARNING: bzlib.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: bzlib.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: bzlib.h: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: bzlib.h: check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: bzlib.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: bzlib.h: proceeding with the preprocessor's result" >&2;};;
-esac
-echo "$as_me:$LINENO: checking for bzlib.h" >&5
-echo $ECHO_N "checking for bzlib.h... $ECHO_C" >&6
-if test "${ac_cv_header_bzlib_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_header_bzlib_h=$ac_header_preproc
 fi
 echo "$as_me:$LINENO: result: $ac_cv_header_bzlib_h" >&5
 echo "${ECHO_T}$ac_cv_header_bzlib_h" >&6
-
-fi
 if test $ac_cv_header_bzlib_h = yes; then
   bzlib_h=yes
 else
@@ -4526,6 +4009,203 @@ rm -f conftest*
 
 fi
 
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
+if test "${ac_cv_header_stdc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  egrep -v '^ *\+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_cv_header_stdc=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_header_stdc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "memchr" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "free" >/dev/null 2>&1; then
+  :
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then
+  :
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <ctype.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) (('a' <= (c) && (c) <= 'i') \
+                     || ('j' <= (c) && (c) <= 'r') \
+                     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+        || toupper (i) != TOUPPER (i))
+      exit(2);
+  exit (0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+
+
+
+
+
+
+
+
+
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+                  inttypes.h stdint.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
 echo "$as_me:$LINENO: checking for quad_t" >&5
 echo $ECHO_N "checking for quad_t... $ECHO_C" >&6
 if test "${ac_cv_type_quad_t+set}" = set; then
diff --git a/configure.in b/configure.in
index eb54a53..cf3bbdc 100644
--- a/configure.in
+++ b/configure.in
@@ -321,7 +321,7 @@ AC_SUBST(DUMPDATESPATH)
 dnl
 dnl Check for Ext2fs headers and libraries
 dnl
-AC_CHECK_HEADER(ext2fs/ext2fs.h, [ext2fs_h=yes], [ext2fs_h=no])
+AC_CHECK_HEADER(ext2fs/ext2fs.h, [ext2fs_h=yes], [ext2fs_h=no], [-])
 AC_CHECK_LIB(ext2fs, ext2fs_open, [ext2fs_lib=yes], [ext2fs_lib=no], [-lcom_err])
 if test "$ext2fs_h" = no -o "$ext2fs_lib" = no; then
 	AC_MSG_ERROR(You need to install the Ext2fs libraries from the E2fsprogs distribution first - hint: make install-libs)
@@ -330,7 +330,7 @@ fi
 dnl
 dnl Try to use ext2_fs.h header from libext2fs instead of from the kernel
 dnl
-AC_CHECK_HEADERS(ext2fs/ext2_fs.h)
+AC_CHECK_HEADERS(ext2fs/ext2_fs.h, [], [], [-])
 
 dnl
 dnl Check for ext2_ino_t type
@@ -375,7 +375,7 @@ fi
 dnl
 dnl Check for readline headers and libraries
 dnl
-AC_CHECK_HEADER(readline/readline.h, [readline_h=yes], [readline_h=no])
+AC_CHECK_HEADER(readline/readline.h, [readline_h=yes], [readline_h=no], [-])
 AC_CHECK_LIB(readline, readline, [readline_lib=yes], [readline_lib=no], "-ltermcap")
 if test "$readline_h" = no -o "$readline_lib" = no; then
 	if test "$READLINE" = "-lreadline -ltermcap"; then
@@ -402,7 +402,7 @@ fi
 dnl
 dnl Check for zlib headers and libraries
 dnl
-AC_CHECK_HEADER(zlib.h, [zlib_h=yes], [zlib_h=no])
+AC_CHECK_HEADER(zlib.h, [zlib_h=yes], [zlib_h=no], [-])
 AC_CHECK_LIB(z, compress2, [zlib_lib=yes], [zlib_lib=no])
 if test "$zlib_h" = yes -a "$zlib_lib" = yes; then
 	ZLIB="-lz"
@@ -415,7 +415,7 @@ AC_SUBST(ZLIB)
 dnl
 dnl Check for bzlib headers and libraries
 dnl
-AC_CHECK_HEADER(bzlib.h, [bzlib_h=yes], [bzlib_h=no])
+AC_CHECK_HEADER(bzlib.h, [bzlib_h=yes], [bzlib_h=no], [-])
 AC_CHECK_LIB(bz2, BZ2_bzBuffToBuffCompress, [bzlib_lib=yes], [bzlib_lib=no])
 if test "$bzlib_h" = yes -a "$bzlib_lib" = yes; then
 	BZLIB="-lbz2"