gnucash stable: Multiple changes pushed

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/229d9300 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/c345fc9d (commit)
	from  https://github.com/Gnucash/gnucash/commit/68b3f976 (commit)



commit 229d9300cfe10a1e16b9a42c3093a8c3d6d71dba
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sat Feb 24 17:58:52 2024 +0800

    [engine-helpers.h] key is a const char*
    
    thus allowing compilation in cpp with stricter type checking

commit c345fc9d3c007312ccf63be8899058b720e04d6a
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sat Feb 24 17:58:15 2024 +0800

    add #ifdef __cplusplus extern "C" {} wrappers to .h files



Summary of changes:
 gnucash/gnome-utils/dialog-dup-trans.h                  |  9 +++++++++
 gnucash/gnome-utils/dialog-object-references.h          |  8 ++++++++
 gnucash/gnome-utils/gnc-recurrence.h                    |  8 ++++++++
 gnucash/gnome-utils/gnc-sx-instance-dense-cal-adapter.h |  8 ++++++++
 gnucash/gnome-utils/window-main-summarybar.h            |  8 ++++++++
 gnucash/gnome/assistant-stock-split.h                   |  8 ++++++++
 gnucash/gnome/dialog-customer.h                         |  8 ++++++++
 gnucash/gnome/dialog-doclink.h                          |  8 ++++++++
 gnucash/gnome/dialog-employee.h                         |  8 ++++++++
 gnucash/gnome/dialog-find-account.h                     |  9 +++++++++
 gnucash/gnome/dialog-find-transactions.h                |  9 +++++++++
 gnucash/gnome/dialog-invoice.h                          |  9 +++++++++
 gnucash/gnome/dialog-job.h                              |  8 ++++++++
 gnucash/gnome/dialog-lot-viewer.h                       |  9 +++++++++
 gnucash/gnome/dialog-payment.h                          |  8 ++++++++
 gnucash/gnome/dialog-print-check.h                      |  9 +++++++++
 gnucash/gnome/dialog-sx-editor.h                        |  8 ++++++++
 gnucash/gnome/dialog-vendor.h                           |  8 ++++++++
 gnucash/gnome/gnc-plugin-business.h                     |  9 +++++++++
 gnucash/gnome/gnc-plugin-page-register.h                | 10 ++++++++++
 gnucash/gnome/gnc-split-reg.h                           |  9 +++++++++
 gnucash/gnome/window-autoclear.h                        |  9 +++++++++
 gnucash/register/ledger-core/gnc-ledger-display.h       |  9 +++++++++
 gnucash/register/register-gnome/gnucash-sheet.h         |  8 ++++++++
 libgnucash/engine/ScrubBusiness.h                       |  9 +++++++++
 libgnucash/engine/engine-helpers.c                      |  4 ++--
 libgnucash/engine/engine-helpers.h                      |  4 ++--
 27 files changed, 217 insertions(+), 4 deletions(-)