ngtcp2.sh: replace local build hack with upstream curl patch [ci skip]

Ref: curl/curl@7f8b36b
Ref: curl/curl#9065

curl.patch

@@ -345,3 +345,50 @@ index 932515667f916..25e81cf190061 100644
 
  /* Name of package */
  #define PACKAGE "curl"
+diff --git a/CMake/FindNGTCP2.cmake b/CMake/FindNGTCP2.cmake
+index 37b060ea0..61e54c2d6 100644
+--- a/CMake/FindNGTCP2.cmake
++++ b/CMake/FindNGTCP2.cmake
+@@ -71,7 +71,7 @@ endif()
+ if(NGTCP2_FIND_COMPONENTS)
+   set(NGTCP2_CRYPTO_BACKEND "")
+   foreach(component IN LISTS NGTCP2_FIND_COMPONENTS)
+-    if(component MATCHES "^(OpenSSL|GnuTLS)")
++    if(component MATCHES "^(BoringSSL|OpenSSL|GnuTLS)")
+       if(NGTCP2_CRYPTO_BACKEND)
+         message(FATAL_ERROR "NGTCP2: Only one crypto library can be selected")
+       endif()
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 5350e8798..5ecb944c7 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -451,6 +451,7 @@ if(CURL_USE_OPENSSL)
+   check_symbol_exists(RAND_status "${CURL_INCLUDES}" HAVE_RAND_STATUS)
+   check_symbol_exists(RAND_screen "${CURL_INCLUDES}" HAVE_RAND_SCREEN)
+   check_symbol_exists(RAND_egd    "${CURL_INCLUDES}" HAVE_RAND_EGD)
++  check_symbol_exists(OPENSSL_IS_BORINGSSL "openssl/base.h" HAVE_BORINGSSL)
+
+   add_definitions(-DOPENSSL_SUPPRESS_DEPRECATED)
+ endif()
+@@ -506,7 +507,7 @@ function(CheckQuicSupportInOpenSSL)
+   set(CMAKE_REQUIRED_LIBRARIES  "${OPENSSL_LIBRARIES}")
+   check_symbol_exists(SSL_CTX_set_quic_method "openssl/ssl.h" HAVE_SSL_CTX_SET_QUIC_METHOD)
+   if(NOT HAVE_SSL_CTX_SET_QUIC_METHOD)
+-    message(FATAL_ERROR "QUIC support is missing in OpenSSL/boringssl. Try setting -DOPENSSL_ROOT_DIR")
++    message(FATAL_ERROR "QUIC support is missing in OpenSSL/BoringSSL. Try setting -DOPENSSL_ROOT_DIR")
+   endif()
+   cmake_pop_check_state()
+ endfunction()
+@@ -514,7 +515,11 @@ endfunction()
+ option(USE_NGTCP2 "Use ngtcp2 and nghttp3 libraries for HTTP/3 support" OFF)
+ if(USE_NGTCP2)
+   if(USE_OPENSSL)
+-    find_package(NGTCP2 REQUIRED OpenSSL)
++    if(HAVE_BORINGSSL)
++      find_package(NGTCP2 REQUIRED BoringSSL)
++    else()
++      find_package(NGTCP2 REQUIRED OpenSSL)
++    endif()
+     CheckQuicSupportInOpenSSL()
+   elseif(USE_GNUTLS)
+     # TODO add GnuTLS support as vtls library.

ngtcp2.sh

@@ -81,13 +81,5 @@ _VER="$1"
   cp -f -p COPYING                      "${_DST}/COPYING.txt"
   cp -f -p README.rst                   "${_DST}/"
 
-  # curl-cmake recognizes BoringSSL as OpenSSL. Make sure it finds this
-  # crypto library as well:
-  if [ -d ../boringssl ]; then
-    cp -p \
-      "${_pkg}"/lib/libngtcp2_crypto_boringssl.a \
-      "${_pkg}"/lib/libngtcp2_crypto_openssl.a  # FIXME
-  fi
-
   ../_pkg.sh "$(pwd)/${_ref}"
 )