diff --git a/games/dhewm3/Makefile b/games/dhewm3/Makefile
index 03146c02540e..d42552818d22 100644
--- a/games/dhewm3/Makefile
+++ b/games/dhewm3/Makefile
@@ -1,57 +1,56 @@
 PORTNAME=	dhewm3
 DISTVERSION=	1.5.4
 CATEGORIES=	games
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Doom 3 GPL source port
 WWW=		https://dhewm3.org/
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/../COPYING.txt
 
 LIB_DEPENDS=	libcurl.so:ftp/curl
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	dhewm
 
 USES=		cmake compiler:c++11-lang openal:al sdl
-USE_CXXSTD=	c++14
 USE_SDL=	sdl2
 CMAKE_ON=	REPRODUCIBLE_BUILD
 
 LDFLAGS_i386=	-Wl,-znotext
 
 WRKSRC_SUBDIR=	neo
 
 SUB_FILES=	pkg-message
 
 PORTDOCS=	*
 
 DESKTOP_ENTRIES="dhewm 3" \
 		"" \
 		"doom3" \
 		"${PORTNAME}" \
 		"Game;ActionGame;" \
 		""
 
 OPTIONS_DEFINE=	OPTIMIZED_CFLAGS DEDICATED DOCS
 OPTIONS_DEFAULT=OPTIMIZED_CFLAGS DEDICATED
 OPTIONS_SUB=	yes
 
 DEDICATED_DESC=		Build dedicated server
 DEDICATED_CMAKE_ON=	-DDEDICATED=ON
 
 post-patch-OPTIMIZED_CFLAGS-off:
 	@${REINPLACE_CMD} -e 's|-O3 -ffast-math -fno-unsafe-math-optimizations -fomit-frame-pointer||' ${WRKSRC}/CMakeLists.txt
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${DATADIR}/base
 	@${MKDIR} ${STAGEDIR}${DATADIR}/d3xp
 	${INSTALL_DATA} ${WRKSRC}/sys/linux/setup/image/doom3.png \
 		${STAGEDIR}${PREFIX}/share/pixmaps/
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/../README.md ${STAGEDIR}${DOCSDIR}/
 
 .include <bsd.port.mk>
diff --git a/games/dhewm3/files/patch-sys_stub_openal__stub.cpp b/games/dhewm3/files/patch-sys_stub_openal__stub.cpp
new file mode 100644
index 000000000000..780766155af2
--- /dev/null
+++ b/games/dhewm3/files/patch-sys_stub_openal__stub.cpp
@@ -0,0 +1,157 @@
+--- sys/stub/openal_stub.cpp.orig	2024-08-03 03:52:42 UTC
++++ sys/stub/openal_stub.cpp
+@@ -32,53 +32,53 @@ extern "C" {
+ 
+ extern "C" {
+ 
+-AL_API ALenum AL_APIENTRY alGetError() {
++AL_API ALenum AL_APIENTRY alGetError() AL_API_NOEXCEPT {
+ 	return AL_NO_ERROR;
+ }
+ 
+-AL_API ALboolean AL_APIENTRY alIsSource( ALuint sid ) {
++AL_API ALboolean AL_APIENTRY alIsSource( ALuint sid ) AL_API_NOEXCEPT {
+ 	return AL_FALSE;
+ }
+ 
+-AL_API void AL_APIENTRY alGenBuffers( ALsizei n, ALuint* buffers ) { }
++AL_API void AL_APIENTRY alGenBuffers( ALsizei n, ALuint* buffers ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSourceStop( ALuint sid ) { }
++AL_API void AL_APIENTRY alSourceStop( ALuint sid ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alGetSourcei( ALuint sid,  ALenum pname, ALint* value ) { }
++AL_API void AL_APIENTRY alGetSourcei( ALuint sid,  ALenum pname, ALint* value ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSource3i( ALuint sid, ALenum param, ALint value1, ALint value2, ALint value3 ) { }
++AL_API void AL_APIENTRY alSource3i( ALuint sid, ALenum param, ALint value1, ALint value2, ALint value3 ) AL_API_NOEXCEPT { }
+ 
+ 
+-AL_API const ALchar* AL_APIENTRY alGetString( ALenum param ) {
++AL_API const ALchar* AL_APIENTRY alGetString( ALenum param ) AL_API_NOEXCEPT {
+ 	return "";
+ }
+ 
+-AL_API ALint AL_APIENTRY alGetInteger( ALenum param ) { return 0; }
++AL_API ALint AL_APIENTRY alGetInteger( ALenum param ) AL_API_NOEXCEPT { return 0; }
+ 
+-ALC_API void ALC_APIENTRY alcSuspendContext( ALCcontext *alcHandle ) { }
++ALC_API void ALC_APIENTRY alcSuspendContext( ALCcontext *alcHandle ) AL_API_NOEXCEPT { }
+ 
+-ALC_API ALCdevice * ALC_APIENTRY alcOpenDevice( const ALchar *tokstr ) {
++ALC_API ALCdevice * ALC_APIENTRY alcOpenDevice( const ALchar *tokstr ) AL_API_NOEXCEPT {
+ 	return NULL;
+ }
+ 
+-ALC_API ALCboolean ALC_APIENTRY alcIsExtensionPresent( ALCdevice *device, const ALCchar *extname ) {
++ALC_API ALCboolean ALC_APIENTRY alcIsExtensionPresent( ALCdevice *device, const ALCchar *extname ) AL_API_NOEXCEPT {
+ 	return AL_FALSE;
+ }
+ 
+-ALC_API void ALC_APIENTRY alcGetIntegerv(ALCdevice *device, ALCenum param, ALCsizei size, ALCint *values) {}
++ALC_API void ALC_APIENTRY alcGetIntegerv(ALCdevice *device, ALCenum param, ALCsizei size, ALCint *values) AL_API_NOEXCEPT {}
+ 
+-ALC_API ALCenum ALC_APIENTRY alcGetError(ALCdevice *device) {
++ALC_API ALCenum ALC_APIENTRY alcGetError(ALCdevice *device) AL_API_NOEXCEPT {
+ 	return ALC_NO_ERROR;
+ }
+ 
+-ALC_API void* ALC_APIENTRY alcGetProcAddress(ALCdevice *device, const ALCchar *funcname) {
++ALC_API void* ALC_APIENTRY alcGetProcAddress(ALCdevice *device, const ALCchar *funcname) AL_API_NOEXCEPT {
+ 	return NULL;
+ }
+ 
+ 
+-AL_API void AL_APIENTRY alDeleteBuffers( ALsizei n, const ALuint* buffers ) { }
++AL_API void AL_APIENTRY alDeleteBuffers( ALsizei n, const ALuint* buffers ) AL_API_NOEXCEPT { }
+ 
+-AL_API ALboolean AL_APIENTRY alIsExtensionPresent( const ALchar* fname ) {
++AL_API ALboolean AL_APIENTRY alIsExtensionPresent( const ALchar* fname ) AL_API_NOEXCEPT {
+ 	return AL_FALSE;
+ }
+ 
+@@ -86,63 +86,63 @@ AL_API void AL_APIENTRY alBufferData( ALuint   buffer,
+ 									ALenum   format,
+ 									const ALvoid*    data,
+ 									ALsizei  size,
+-									ALsizei  freq ) { }
++									ALsizei  freq ) AL_API_NOEXCEPT { }
+ 
+-ALC_API ALCboolean ALC_APIENTRY alcMakeContextCurrent( ALCcontext *alcHandle ) {
++ALC_API ALCboolean ALC_APIENTRY alcMakeContextCurrent( ALCcontext *alcHandle ) AL_API_NOEXCEPT {
+ 	return 0;
+ }
+ 
+-ALC_API ALCvoid ALC_APIENTRY alcProcessContext( ALCcontext *alcHandle ) {
++ALC_API ALCvoid ALC_APIENTRY alcProcessContext( ALCcontext *alcHandle ) AL_API_NOEXCEPT {
+ 	return;
+ }
+ 
+-ALC_API ALCvoid ALC_APIENTRY alcDestroyContext( ALCcontext *alcHandle ) {
++ALC_API ALCvoid ALC_APIENTRY alcDestroyContext( ALCcontext *alcHandle ) AL_API_NOEXCEPT {
+ 	return;
+ }
+ 
+-ALC_API const ALCchar * ALC_APIENTRY alcGetString( ALCdevice *deviceHandle, ALCenum token ) {
++ALC_API const ALCchar * ALC_APIENTRY alcGetString( ALCdevice *deviceHandle, ALCenum token ) AL_API_NOEXCEPT {
+ 	return NULL;
+ }
+ 
+-AL_API void AL_APIENTRY alDeleteSources( ALsizei n, const ALuint* sources ) { }
++AL_API void AL_APIENTRY alDeleteSources( ALsizei n, const ALuint* sources ) AL_API_NOEXCEPT { }
+ 
+-AL_API ALenum AL_APIENTRY alGetEnumValue( const ALchar* ename ) {
++AL_API ALenum AL_APIENTRY alGetEnumValue( const ALchar* ename ) AL_API_NOEXCEPT {
+ 	return 0;
+ }
+ 
+-AL_API void* AL_APIENTRY alGetProcAddress( const ALchar* fname ) {
++AL_API void* AL_APIENTRY alGetProcAddress( const ALchar* fname ) AL_API_NOEXCEPT {
+ 	return NULL;
+ }
+ 
+ ALC_API ALCcontext * ALC_APIENTRY alcCreateContext( ALCdevice *dev,
+-												  const ALCint* attrlist ) {
++												  const ALCint* attrlist ) AL_API_NOEXCEPT {
+ 	return NULL;
+ }
+ 
+-AL_API void AL_APIENTRY alListenerfv( ALenum pname, const ALfloat* param ) { }
++AL_API void AL_APIENTRY alListenerfv( ALenum pname, const ALfloat* param ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSourceQueueBuffers( ALuint sid, ALsizei numEntries, const ALuint *bids ) { }
++AL_API void AL_APIENTRY alSourceQueueBuffers( ALuint sid, ALsizei numEntries, const ALuint *bids ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSourcei( ALuint sid, ALenum param, ALint value ) { }
++AL_API void AL_APIENTRY alSourcei( ALuint sid, ALenum param, ALint value ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alListenerf( ALenum pname, ALfloat param ) { }
++AL_API void AL_APIENTRY alListenerf( ALenum pname, ALfloat param ) AL_API_NOEXCEPT { }
+ 
+-ALC_API ALCboolean ALC_APIENTRY alcCloseDevice( ALCdevice *dev ) { return false; }
++ALC_API ALCboolean ALC_APIENTRY alcCloseDevice( ALCdevice *dev ) AL_API_NOEXCEPT { return false; }
+ 
+-AL_API ALboolean AL_APIENTRY alIsBuffer( ALuint buffer ) {
++AL_API ALboolean AL_APIENTRY alIsBuffer( ALuint buffer ) AL_API_NOEXCEPT {
+ 	return AL_FALSE;
+ }
+ 
+ AL_API void AL_APIENTRY alSource3f( ALuint sid, ALenum param,
+-								  ALfloat f1, ALfloat f2, ALfloat f3 ) { }
++								  ALfloat f1, ALfloat f2, ALfloat f3 ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alGenSources( ALsizei n, ALuint* sources ) { }
++AL_API void AL_APIENTRY alGenSources( ALsizei n, ALuint* sources ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSourcef( ALuint sid, ALenum param, ALfloat value ) { }
++AL_API void AL_APIENTRY alSourcef( ALuint sid, ALenum param, ALfloat value ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSourceUnqueueBuffers( ALuint sid, ALsizei numEntries, ALuint *bids ) { }
++AL_API void AL_APIENTRY alSourceUnqueueBuffers( ALuint sid, ALsizei numEntries, ALuint *bids ) AL_API_NOEXCEPT { }
+ 
+-AL_API void AL_APIENTRY alSourcePlay( ALuint sid ) { }
+-AL_API void AL_APIENTRY alSourcePause( ALuint source ) {}
++AL_API void AL_APIENTRY alSourcePlay( ALuint sid ) AL_API_NOEXCEPT { }
++AL_API void AL_APIENTRY alSourcePause( ALuint source ) AL_API_NOEXCEPT {}
+ 
+ } // extern "C"