* dlopen.c (dlopen): Return NULL when name is NULL (suggested by

chrisiasci@aol.com).
* cygwin.din: Add a new, internally used export - _check_for_executable.
* dcrt0.cc (dll_crt0_1): Set _check_for_executable for older binaries.  Pass
user_data to premain functions.
* fhandler.cc (fhandler_disk_file::open): Only check for executable if the
linked program is intereested in the executable bit.
(fhandler_disk_file::check_execable_p): Delete.
* fhandler.h (executable_states): New enumeration of various states of
executable bit caring.
(fhandler_base::set_execable_p): New method.
* fhandler_termios.cc (fhandler_termios::line_edit): Flag when a signal has
been sent to the tty.  Return -1 when this is so.
* fhandler_console.cc (fhandler_console::read): Return -1 when signal sending
character encountered.
* path.cc (path_conv::check): Record when path refers to a disk device.  Move
executable extension check here.
(check_sysfile): Accomodate new EXEC path states.
(has_suffix): Remove.
(next_suffix): Remove.
(class suffix_scan): New clas.
(suffix_scan::has): New method.
(suffix_scan:next): New method.
(symlink_info::check): Use suffix_scan method to control for scanning for
suffixes.
* path.h (path_conv::exec_state): New method.
* perprocess.h: Make "C" friendly.
* include/cygwin/version.h: Define CYGWIN_VERSION_CHECK_FOR_S_IEXEC.  Bump
CYGWIN_VERSION_API_MINOR.
* include/sys/cygwin.h: Change premain declarations.
* winsup.h: Move __cplusplus test to after builtin defines.

1 files changed, 10 insertions, 2 deletions

diff --git a/winsup/cygwin/perprocess.h b/winsup/cygwin/perprocess.h
index a649ece74..c0a555983 100644
--- a/winsup/cygwin/perprocess.h
+++ b/winsup/cygwin/perprocess.h
@@ -1,6 +1,6 @@
 /* per_process.h: main Cygwin header file.
 
-   Copyright 2000 Red Hat, Inc.
+   Copyright 2000, 2001 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -10,11 +10,19 @@ details. */
 
 #include <sys/cygwin.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Pointer into application's static data */
-extern "C" per_process __cygwin_user_data;
+extern struct per_process __cygwin_user_data;
 #define user_data (&__cygwin_user_data)
 
 /* We use the following to test that sizeof hasn't changed.  When adding
    or deleting members, insert fillers or use the reserved entries.
    Do not change this value. */
 #define SIZEOF_PER_PROCESS (42 * 4)
+
+#ifdef __cplusplus
+}
+#endif