curl: choose automatically quictl when building with http3 (#351864)

pkgs/by-name/cu/curlMinimal/package.nix

@@ -14,7 +14,7 @@
     !(isDarwin && (stdenv.buildPlatform != stdenv.hostPlatform))
   ), libkrb5
 , http2Support ? true, nghttp2
-, http3Support ? false, nghttp3, ngtcp2
+, http3Support ? false, nghttp3, ngtcp2, quictls
 , websocketSupport ? false
 , idnSupport ? false, libidn2
 , ldapSupport ? false, openldap
@@ -47,6 +47,10 @@
 
 assert !((lib.count (x: x) [ gnutlsSupport opensslSupport wolfsslSupport rustlsSupport ]) > 1);
 
+let
+  openssl' = if http3Support then quictls else openssl;
+in
+
 stdenv.mkDerivation (finalAttrs: {
   pname = "curl";
   version = "8.11.0";
@@ -106,7 +110,7 @@ stdenv.mkDerivation (finalAttrs: {
     lib.optionals http3Support [ nghttp3 ngtcp2 ] ++
     lib.optional idnSupport libidn2 ++
     lib.optional ldapSupport openldap ++
-    lib.optional opensslSupport openssl ++
+    lib.optional opensslSupport openssl' ++
     lib.optional pslSupport libpsl ++
     lib.optional rtmpSupport rtmpdump ++
     lib.optional scpSupport libssh2 ++
@@ -150,7 +154,7 @@ stdenv.mkDerivation (finalAttrs: {
       (lib.withFeatureAs brotliSupport "brotli" (lib.getDev brotli))
       (lib.withFeatureAs gnutlsSupport "gnutls" (lib.getDev gnutls))
       (lib.withFeatureAs idnSupport "libidn2" (lib.getDev libidn2))
-      (lib.withFeatureAs opensslSupport "openssl" (lib.getDev openssl))
+      (lib.withFeatureAs opensslSupport "openssl" (lib.getDev openssl'))
       (lib.withFeatureAs scpSupport "libssh2" (lib.getDev libssh2))
       (lib.withFeatureAs wolfsslSupport "wolfssl" (lib.getDev wolfssl))
     ]
@@ -205,7 +209,8 @@ stdenv.mkDerivation (finalAttrs: {
   passthru = let
     useThisCurl = attr: attr.override { curl = finalAttrs.finalPackage; };
   in {
-    inherit opensslSupport openssl;
+    inherit opensslSupport;
+    openssl = openssl';
     tests = {
       withCheck = finalAttrs.finalPackage.overrideAttrs (_: { doCheck = true; });
       fetchpatch = tests.fetchpatch.simple.override { fetchpatch = (fetchpatch.override { fetchurl = useThisCurl fetchurl; }) // { version = 1; }; };

pkgs/top-level/all-packages.nix

@@ -3053,7 +3053,6 @@ with pkgs;
   };
 
   curlHTTP3 = curl.override {
-    openssl = quictls;
     http3Support = true;
   };