Check for declarations of fchdir and fsync. Fixes #800710. Backported to 2.3.

configure

 #! /bin/sh
-# From configure.in Revision: 1.432 .
+# From configure.in Revision: 1.433 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.57 for python 2.4.
 #
@@ -13079,15 +13079,12 @@ echo "${ECHO_T}MACHDEP_OBJS" >&6
 
 
 
-
-
-
 
 
 
 
 for ac_func in alarm chown clock confstr ctermid execv \
- fchdir fork fsync fdatasync fpathconf ftime ftruncate \
+ fork fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getpwent getwd \
  kill killpg lchown lstat mkfifo mknod mktime \
@@ -13319,6 +13316,144 @@ sed 's/^/| /' conftest.$ac_ext >&5
 echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: checking for fchdir" >&5
+echo $ECHO_N "checking for fchdir... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+void *x=fchdir
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$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 $ac_status); }; }; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_FCHDIR 1
+_ACEOF
+
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: checking for fsync" >&5
+echo $ECHO_N "checking for fsync... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+void *x=fsync
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$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 $ac_status); }; }; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SYNC 1
+_ACEOF
+
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: checking for fdatasync" >&5
+echo $ECHO_N "checking for fdatasync... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <unistd.h>
+int
+main ()
+{
+void *x=fdatasync
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$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 $ac_status); }; }; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_FDATASYNC 1
+_ACEOF
+
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 

configure.in

@@ -2065,7 +2065,7 @@ AC_MSG_RESULT(MACHDEP_OBJS)
 
 # checks for library functions
 AC_CHECK_FUNCS(alarm chown clock confstr ctermid execv \
- fchdir fork fsync fdatasync fpathconf ftime ftruncate \
+ fork fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getpwent getwd \
  kill killpg lchown lstat mkfifo mknod mktime \
@@ -2097,6 +2097,24 @@ AC_TRY_COMPILE([#include <unistd.h>], void *x=symlink,
   AC_MSG_RESULT(yes),
   AC_MSG_RESULT(no)
 )
+AC_MSG_CHECKING(for fchdir)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=fchdir,
+  AC_DEFINE(HAVE_FCHDIR, 1, Define if you have the 'fchdir' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for fsync)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=fsync,
+  AC_DEFINE(HAVE_SYNC, 1, Define if you have the 'fsync' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
+AC_MSG_CHECKING(for fdatasync)
+AC_TRY_COMPILE([#include <unistd.h>], void *x=fdatasync,
+  AC_DEFINE(HAVE_FDATASYNC, 1, Define if you have the 'fdatasync' function.)
+  AC_MSG_RESULT(yes),
+  AC_MSG_RESULT(no)
+)
 
 # On some systems (eg. FreeBSD 5), we would find a definition of the
 # functions ctermid_r, setgroups in the library, but no prototype

pyconfig.h.in

@@ -96,13 +96,13 @@
 /* Define to 1 if you have the `execv' function. */
 #undef HAVE_EXECV
 
-/* Define to 1 if you have the `fchdir' function. */
+/* Define if you have the 'fchdir' function. */
 #undef HAVE_FCHDIR
 
 /* Define to 1 if you have the <fcntl.h> header file. */
 #undef HAVE_FCNTL_H
 
-/* Define to 1 if you have the `fdatasync' function. */
+/* Define if you have the 'fdatasync' function. */
 #undef HAVE_FDATASYNC
 
 /* Define if you have the 'flock' function. */
@@ -126,9 +126,6 @@
 /* Define to 1 if you have the `fstatvfs' function. */
 #undef HAVE_FSTATVFS
 
-/* Define to 1 if you have the `fsync' function. */
-#undef HAVE_FSYNC
-
 /* Define to 1 if you have the `ftell64' function. */
 #undef HAVE_FTELL64
 
@@ -488,6 +485,9 @@
 /* Define if you have the 'symlink' function. */
 #undef HAVE_SYMLINK
 
+/* Define if you have the 'fsync' function. */
+#undef HAVE_SYNC
+
 /* Define to 1 if you have the `sysconf' function. */
 #undef HAVE_SYSCONF