https://gist.github.com/krakjoe/549ec38161ecd1ad9b8f16f6cf18657e

Author: codemasher

config.m4

@@ -21,5 +21,5 @@ if test "$PHP_XZ" != "no"; then
   ])
   PHP_SUBST(XZ_SHARED_LIBADD)
 
-  PHP_NEW_EXTENSION(xz, xz.c xz_fopen_wrapper.c utils.c, $ext_shared)
+  PHP_NEW_EXTENSION(xz, xz.c xz_fopen_wrapper.c utils.c, $ext_shared, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)
 fi

php_xz.h

@@ -36,10 +36,6 @@ extern php_stream_wrapper php_stream_xz_wrapper;
 #	define PHP_XZ_API
 #endif
 
-# if defined(ZTS) && defined(COMPILE_DL_XZ)
-ZEND_TSRMLS_CACHE_EXTERN()
-# endif
-
 #ifdef ZTS
 #	include "TSRM.h"
 #endif
@@ -53,15 +49,7 @@ PHP_FUNCTION(xzopen);
 PHP_FUNCTION(xzencode);
 PHP_FUNCTION(xzdecode);
 
-php_stream *php_stream_xzopen(php_stream_wrapper *wrapper, const char *path,
-	const char *mode_pass, int options, zend_string **opened_path,
-	php_stream_context *context STREAMS_DC);
-
-#ifdef ZTS
-#	define XZ_G(v) TSRMG(xz_globals_id, zend_xz_globals *, v)
-#else
-#	define XZ_G(v) (xz_globals.v)
-#endif
+php_stream *php_stream_xzopen(php_stream_wrapper *wrapper, const char *path, const char *mode_pass, int options, zend_string **opened_path, php_stream_context *context STREAMS_DC);
 
 #endif	/* PHP_XZ_H */
 

xz.c

@@ -146,8 +146,8 @@ PHP_MINFO_FUNCTION(xz)
 PHP_FUNCTION(xzopen)
 {
 	char *filename = NULL, *mode = NULL;
-	size_t filename_len = 0, mode_len = 0;
-	unsigned long compression_level = INI_INT("xz.compression_level");
+	zend_long filename_len = 0, mode_len = 0;
+	zend_ulong compression_level = INI_INT("xz.compression_level");
 
 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "ss|l", &filename, &filename_len, &mode, &mode_len, &compression_level) == FAILURE) {
 		return;

xz_fopen_wrapper.c

@@ -172,7 +172,11 @@ static int php_xz_init_encoder(struct php_xz_stream_data_t *self)
 
 /* {{{ php_xziop_read
    Reads from the stream. */
+#if PHP_VERSION_ID >= 70400
 static ssize_t php_xziop_read(php_stream *stream, char *buf, size_t count)
+#else
+static size_t php_xziop_read(php_stream *stream, char *buf, size_t count)
+#endif
 {
 	struct php_xz_stream_data_t *self = (struct php_xz_stream_data_t *) stream->abstract;
 	lzma_stream *strm = &self->strm;
@@ -210,7 +214,11 @@ static ssize_t php_xziop_read(php_stream *stream, char *buf, size_t count)
 
 /* {{{ php_xziop_write
    Writes to the stream. */
+#if PHP_VERSION_ID >= 70400
 static ssize_t php_xziop_write(php_stream *stream, const char *buf, size_t count)
+#else
+static size_t php_xziop_write(php_stream *stream, const char *buf, size_t count)
+#endif
 {
 	struct php_xz_stream_data_t *self = (struct php_xz_stream_data_t *) stream->abstract;
 	int wrote = 0, bytes_consumed = 0;
@@ -305,14 +313,21 @@ php_stream_ops php_stream_xzio_ops = {
 	NULL, /* cast */
 	NULL, /* stat */
 	NULL  /* set_option */
+	.label = "XZ",
+	.write = php_xziop_write,
+	.read = php_xziop_read,
+	.close = php_xziop_close,
+	.flush = php_xziop_flush,
+	.seek = NULL,
+	.cast = NULL,
+	.stat = NULL,
+	.set_option = NULL
 };
 /* }}} */
 
 /* {{{ php_stream_xzopen
    Opens a stream. */
-php_stream *php_stream_xzopen(php_stream_wrapper *wrapper, const char *path,
-	const char *mode_pass, int options, zend_string **opened_path,
-	php_stream_context *context STREAMS_DC)
+php_stream *php_stream_xzopen(php_stream_wrapper *wrapper, const char *path, const char *mode_pass, int options, zend_string **opened_path, php_stream_context *context STREAMS_DC)
 {
 	char mode[64];
 	unsigned long level = 6;
@@ -323,7 +338,7 @@ php_stream *php_stream_xzopen(php_stream_wrapper *wrapper, const char *path,
 
 	/* The pointer below is freed even though it is `const` because it was
 	   manually allocated in `xzopen`.. */
-	efree((void *) mode_pass);
+	efree((char *) mode_pass);
 
 	/* Split compression level and mode. */
 	char *colonp = strchr(mode, ':');