Make curl brotli and zstd optional on Windows

This allows builds with older curl versions to continue without these dependencies, while also supporting static library names when they are present.

Co-authored-by: Jan Ehrhardt <1757825+Jan-E@users.noreply.github.com>

Author: shivammathur

ext/curl/config.w32

@@ -24,11 +24,18 @@ if (PHP_CURL != "no") {
 		(ver_num <= parseInt("0x073b00") || ver_num > parseInt("0x073b00") &&
 			CHECK_LIB("normaliz.lib", "curl", PHP_CURL) &&
 			CHECK_LIB("libssh2.lib", "curl", PHP_CURL) &&
-			CHECK_LIB("nghttp2.lib", "curl", PHP_CURL) &&
-			CHECK_LIB("brotlidec.lib", "curl", PHP_CURL) &&
-			CHECK_LIB("brotlicommon.lib", "curl", PHP_CURL) &&
-			CHECK_LIB("libzstd.lib", "curl", PHP_CURL))
+			CHECK_LIB("nghttp2.lib", "curl", PHP_CURL))
 		) {
+		if (!(CHECK_HEADER_ADD_INCLUDE("brotli/decode.h", "CFLAGS_CURL") &&
+			CHECK_LIB("brotlidec.lib;brotlidec-static.lib", "curl", PHP_CURL) &&
+			CHECK_LIB("brotlicommon.lib;brotlicommon-static.lib", "curl", PHP_CURL)
+		)) {
+			WARNING("brotli in curl not enabled; libraries or headers not found");
+		}
+		if (!(CHECK_LIB("libzstd.lib;libzstd_a.lib", "curl", PHP_CURL)
+		)) {
+			WARNING("zstd in curl not enabled; library not found");
+		}
 		EXTENSION("curl", "interface.c multi.c share.c curl_file.c");
 		AC_DEFINE('HAVE_CURL', 1, 'Have cURL library');
 		ADD_FLAG("CFLAGS_CURL", "/D CURL_STATICLIB /D PHP_CURL_EXPORTS=1");