git: 1947e3c8f4fd - main - x11/hypridle: unbreak build with libc++ 16

The branch main has been updated by jbeich:

URL: https://cgit.FreeBSD.org/ports/commit/?id=1947e3c8f4fdf1c125f657e604160bfa725fe568

commit 1947e3c8f4fdf1c125f657e604160bfa725fe568
Author:     Jan Beich <jbeich@FreeBSD.org>
AuthorDate: 2024-02-27 16:47:46 +0000
Commit:     Jan Beich <jbeich@FreeBSD.org>
CommitDate: 2024-02-27 16:51:15 +0000

    x11/hypridle: unbreak build with libc++ 16
    
    In file included from src/config/ConfigManager.cpp:1:
    In file included from src/config/ConfigManager.hpp:3:
    src/config/../helpers/Log.hpp:56:27: error: no member named 'vformat' in namespace 'std'
            std::cout << std::vformat(fmt, std::make_format_args(args...)) << "\n";
                         ~~~~~^
    src/config/../helpers/Log.hpp:56:45: error: no member named 'make_format_args' in namespace 'std'
            std::cout << std::vformat(fmt, std::make_format_args(args...)) << "\n";
                                           ~~~~~^
    
    Reported by:    pkg-fallout
---
 x11/hypridle/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/x11/hypridle/Makefile b/x11/hypridle/Makefile
index 6dddb29d3c3a..c5988f82acb6 100644
--- a/x11/hypridle/Makefile
+++ b/x11/hypridle/Makefile
@@ -25,6 +25,12 @@ GH_ACCOUNT=	hyprwm
 LDFLAGS+=	-Wl,--as-needed # sdbus-cpp deps
 PLIST_FILES=	bin/${PORTNAME}
 
+# XXX Drop after FreeBSD 14.0 EOL around 2025-03-01
+.if exists(/usr/include/c++/v1/__format/format_functions.h) && \
+   !exists(/usr/include/c++/v1/__format/write_escaped.h)
+CXXFLAGS+=	-fexperimental-library
+.endif
+
 post-patch:
 # https://github.com/ConsoleKit2/ConsoleKit2/issues/150
 # https://github.com/ConsoleKit2/ConsoleKit2/issues/151