Define LEXBOR_STATIC in CFLAGS_URI for static ext/uri on Windows (php#22165)

ext/uri is always built statically (false /* never shared */ in
EXTENSION()) and includes the bundled lexbor headers via /I ext/lexbor.
On Windows, lexbor's LXB_API macro defaults to __declspec(dllimport),
which produces LNK2019 unresolved external symbol errors for every
lxb_* function referenced from ext/uri when PHP itself is linked
statically without a runtime DLL.

Adding /D LEXBOR_STATIC to CFLAGS_URI in ext/uri/config.w32 makes
LXB_API expand to nothing for ext/uri's compilation units. The scope
matches URI_STATIC_BUILD on the same line: per-consumer, because
other lexbor consumers (e.g. ext/dom, which can build as shared)
must decide for themselves whether to disable the dllimport
decoration.

Author: luthermonson

NEWS

@@ -6,6 +6,11 @@ PHP                                                                        NEWS
   . Fixed bug GH-22121 (Double free in gdImageSetStyle() after
     overflow-triggered early return). (iliaal)
 
+- URI:
+  . Add LEXBOR_STATIC to CFLAGS_URI on Windows so ext/uri does not see
+    LXB_API as __declspec(dllimport) when linked statically into PHP.
+    (Luther Monson)
+
 - Zlib:
   . Fixed memory leak if deflate initialization fails and there is a dict.
     (ndossche)

ext/uri/config.w32

@@ -2,7 +2,7 @@ EXTENSION("uri", "php_uri.c php_uri_common.c uri_parser_rfc3986.c uri_parser_wha
 
 AC_DEFINE("URI_ENABLE_ANSI", 1, "Define to 1 for enabling ANSI support of uriparser.")
 AC_DEFINE("URI_NO_UNICODE", 1, "Define to 1 for disabling unicode support of uriparser.")
-ADD_FLAG("CFLAGS_URI", "/D URI_STATIC_BUILD");
+ADD_FLAG("CFLAGS_URI", "/D URI_STATIC_BUILD /D LEXBOR_STATIC");
 
 ADD_EXTENSION_DEP('uri', 'lexbor');
 ADD_SOURCES("ext/uri/uriparser/src", "UriCommon.c UriCompare.c UriCopy.c UriEscape.c UriFile.c UriIp4.c UriIp4Base.c \