www/nghttp2: Attempt to fix build on 13.2 and 14.0

Attempt to fix build failure introduced in 1.62.0

PR:		278965
Approved by:	portmgr (blanket, build fix)

www/nghttp2/Makefile

@@ -43,6 +43,17 @@ HPACK_BUILD_DEPENDS=	jansson>=2.5:devel/jansson
 HPACK_CMAKE_BOOL=	ENABLE_HPACK_TOOLS
 HPACK_LIB_DEPENDS=	libjansson.so:devel/jansson
 
+.include <bsd.port.options.mk>
+
+.if ${OPSYS}_${OSREL:C/\\./-/} == FreeBSD_13-2
+USES+=	llvm
+EXTRA_PATCHES=	${PATCHDIR}/extra-patch-compatibility-fix
+.endif
+
+.if ${OPSYS}_${OSREL:C/\\./-/} == FreeBSD_14-0
+EXTRA_PATCHES=	${PATCHDIR}/extra-patch-compatibility-fix
+.endif
+
 post-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/etc/nghttpx/
 	${INSTALL_DATA} ${FILESDIR}/nghttpx.conf.sample ${STAGEDIR}${PREFIX}/etc/nghttpx/nghttpx.conf.sample

www/nghttp2/files/extra-patch-compatibility-fix

@@ -0,0 +1,11 @@
+--- src/template.h.orig	2024-06-08 10:06:50 UTC
++++ src/template.h
+@@ -444,7 +444,7 @@ inline constexpr bool operator==(const StringRef &lhs,
+          std::equal(std::begin(lhs), std::end(lhs), std::begin(rhs));
+ }
+
+-#ifndef __APPLE__
++#ifndef __FreeBSD__
+ inline constexpr std::strong_ordering
+ operator<=>(const StringRef &lhs, const StringRef &rhs) noexcept {
+   return std::lexicographical_compare_three_way(std::begin(lhs), std::end(lhs),