[Emacs-diffs] Changes to emacs/configure,v

[Chong Yidong]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Chong Yidong <cyd>      07/10/17 15:58:06

Index: configure
===================================================================
RCS file: /sources/emacs/emacs/configure,v
retrieving revision 1.231
retrieving revision 1.232
diff -u -b -r1.231 -r1.232
--- configure   10 Oct 2007 13:17:51 -0000      1.231
+++ configure   17 Oct 2007 15:58:05 -0000      1.232
@@ -15922,10 +15922,9 @@
 
 
 
-
 for ac_func in gethostname getdomainname dup2 \
 rename closedir mkdir rmdir sysinfo getrusage get_current_dir_name \
-random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime res_init setsid \
+random lrand48 bcopy bcmp logb frexp fmod rint cbrt ftime setsid \
 strerror fpathconf select mktime euidaccess getpagesize tzset setlocale \
 utimes setrlimit setpgid getcwd getwd shutdown getaddrinfo \
 __fpending mblen mbrlen mbsinit strsignal setitimer ualarm index rindex \
@@ -18532,13 +18531,11 @@
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-#include <sys/types.h> /* for off_t */
-     #include <stdio.h>
+#include <stdio.h>
 int
 main ()
 {
-int (*fp) (FILE *, off_t, int) = fseeko;
-     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
+return fseeko (stdin, 0, 0) && (fseeko) (stdin, 0, 0);
   ;
   return 0;
 }
@@ -18578,13 +18575,11 @@
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #define _LARGEFILE_SOURCE 1
-#include <sys/types.h> /* for off_t */
-     #include <stdio.h>
+#include <stdio.h>
 int
 main ()
 {
-int (*fp) (FILE *, off_t, int) = fseeko;
-     return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
+return fseeko (stdin, 0, 0) && (fseeko) (stdin, 0, 0);
   ;
   return 0;
 }
@@ -19613,10 +19608,165 @@
 fi
 
 
+# Do we have res_init, for detecting changes in /etc/resolv.conf?
+
+resolv=no
+{ echo "$as_me:$LINENO: checking for res_init" >&5
+echo $ECHO_N "checking for res_init... $ECHO_C" >&6; }
+if test "${ac_cv_func_res_init+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define res_init to an innocuous variant, in case <limits.h> declares 
res_init.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define res_init innocuous_res_init
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char res_init (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef res_init
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char res_init ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_res_init || defined __stub___res_init
+choke me
+#endif
+
+int
+main ()
+{
+return res_init ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+        test -z "$ac_c_werror_flag" ||
+        test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_func_res_init=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_cv_func_res_init=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_func_res_init" >&5
+echo "${ECHO_T}$ac_cv_func_res_init" >&6; }
+if test $ac_cv_func_res_init = yes; then
+  have_res_init=yes
+else
+  have_res_init=no
+fi
+
+if test "$have_res_init" = no; then
+  OLIBS="$LIBS"
+  LIBS="$LIBS -lresolv"
+  { echo "$as_me:$LINENO: checking for res_init with -lresolv" >&5
+echo $ECHO_N "checking for res_init with -lresolv... $ECHO_C" >&6; }
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <resolv.h>
+int
+main ()
+{
+res_init();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+        test -z "$ac_c_werror_flag" ||
+        test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  have_res_init=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       have_res_init=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+  { echo "$as_me:$LINENO: result: $have_res_init" >&5
+echo "${ECHO_T}$have_res_init" >&6; }
+  if test "$have_res_init" = yes ; then
+    resolv=yes
+  fi
+  LIBS="$OLIBS"
+fi
+
+if test "$have_res_init" = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_RES_INIT 1
+_ACEOF
+
+fi
+
 # Do we need the Hesiod library to provide the support routines?
 if test "$with_hesiod" = yes ; then
   # Don't set $LIBS here -- see comments above.
-  resolv=no
   { echo "$as_me:$LINENO: checking for res_send" >&5
 echo $ECHO_N "checking for res_send... $ECHO_C" >&6; }
 if test "${ac_cv_func_res_send+set}" = set; then
@@ -19922,11 +20072,6 @@
 
   if test "$resolv" = yes ; then
     RESOLVLIB=-lresolv
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_LIBRESOLV 1
-_ACEOF
-
   else
     RESOLVLIB=
   fi
@@ -20089,6 +20234,15 @@
 
 fi
 
+# Do we need libresolv (due to res_init or Hesiod)?
+if test "$resolv" = yes ; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_LIBRESOLV 1
+_ACEOF
+
+fi
+
 # These tell us which Kerberos-related libraries to use.
 if test "${with_kerberos+set}" = set; then