Make curl brotli and zstd optional on Windows (php#21925)

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");