patch 8.0.1444: missing -D_FILE_OFFSET_BITS=64 may cause problems

Problem:    Missing -D_FILE_OFFSET_BITS=64 may cause problems if a library is
            compiled with it.
Solution:   Include -D_FILE_OFFSET_BITS if some CFLAGS has it. (James McCoy,
            closes #2600)
diff --git a/src/auto/configure b/src/auto/configure
index 6a16779..5657664 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -14314,6 +14314,18 @@
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need to force -D_FILE_OFFSET_BITS=64" >&5
+$as_echo_n "checking whether we need to force -D_FILE_OFFSET_BITS=64... " >&6; }
+if echo "$CFLAGS $LUA_CFLAGS $MZSCHEME_CFLAGS $PERL_CFLAGS $PYTHON_GETPATH_CFLAGS $PYTHON_CFLAGS $PYTHON3_CFLAGS $TCL_CFLAGS $RUBY_CFLAGS $GTK_CFLAGS" | grep -q D_FILE_OFFSET_BITS 2>/dev/null; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  $as_echo "#define _FILE_OFFSET_BITS 64" >>confdefs.h
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker --as-needed support" >&5
 $as_echo_n "checking linker --as-needed support... " >&6; }
 LINK_AS_NEEDED=