fixed compilation warnings on big endian system

Author: vibhutisawant

Zend/zend_execute_API.c

@@ -46,7 +46,7 @@ ZEND_API void (*zend_execute_ex)(zend_execute_data *execute_data);
 ZEND_API void (*zend_execute_internal)(zend_execute_data *execute_data, zval *return_value);
 
 /* true globals */
-ZEND_API const zend_fcall_info empty_fcall_info = { 0, {{0}, {{0}}, {0}}, NULL, NULL, NULL, 0, 0 };
+ZEND_API const zend_fcall_info empty_fcall_info = { 0, {{0}}, NULL, NULL, NULL, 0, 0 };
 ZEND_API const zend_fcall_info_cache empty_fcall_info_cache = { NULL, NULL, NULL, NULL };
 
 #ifdef ZEND_WIN32

ext/ffi/ffi_parser.c

@@ -313,7 +313,7 @@ static int get_skip_sym(void) {
 	int ch;
 	int ret;
 	int accept = -1;
-	const unsigned char *accept_pos;
+	const unsigned char *accept_pos = NULL;
 	const unsigned char *cpos = yy_pos;
 	const unsigned char *cend = yy_end;
 

ext/hash/hash_sha3.c

@@ -49,14 +49,14 @@ static inline uint64_t load64(const unsigned char* x) {
 	return ret;
 }
 static inline void store64(unsigned char* x, uint64_t val) {
-	char i;
+	unsigned char i;
 	for (i = 0; i < 8; ++i) {
 		x[i] = val & 0xFF;
 		val >>= 8;
 	}
 }
 static inline void xor64(unsigned char* x, uint64_t val) {
-	char i;
+	unsigned char i;
 	for (i = 0; i < 8; ++i) {
 		x[i] ^= val & 0xFF;
 		val >>= 8;

ext/intl/collator/collator_is_numeric.c

@@ -69,7 +69,7 @@ static double collator_u_strtod(const UChar *nptr, UChar **endptr) /* {{{ */
 		char buf[64], *numbuf, *bufpos;
 		size_t length = u - nstart;
 		double value;
-		ALLOCA_FLAG(use_heap);
+		ALLOCA_FLAG(use_heap = 0);
 
 		if (length < sizeof(buf)) {
 			numbuf = buf;

ext/pdo/pdo_stmt.c

@@ -750,7 +750,7 @@ static int do_fetch(pdo_stmt_t *stmt, int do_bind, zval *return_value, enum pdo_
 {
 	int flags, idx, old_arg_count = 0;
 	zend_class_entry *ce = NULL, *old_ce = NULL;
-	zval grp_val, *pgrp, retval, old_ctor_args = {{0}, {{0}}, {0}};
+	zval grp_val, *pgrp, retval, old_ctor_args = {{0}};
 	int colno;
 
 	if (how == PDO_FETCH_USE_DEFAULT) {