Add BEGIN_EXTERN_C() and END_EXTERN_C() to .h files missing them.

Zend/zend_float.h

@@ -21,6 +21,8 @@
 #ifndef ZEND_FLOAT_H
 #define ZEND_FLOAT_H
 
+BEGIN_EXTERN_C()
+
 /*
   Define functions for FP initialization and de-initialization.
 */
@@ -28,6 +30,8 @@ extern ZEND_API void zend_init_fpu(TSRMLS_D);
 extern ZEND_API void zend_shutdown_fpu(TSRMLS_D);
 extern ZEND_API void zend_ensure_fpu_mode(TSRMLS_D);
 
+END_EXTERN_C()
+
 /* Copy of the contents of xpfpa.h (which is under public domain)
    See http://wiki.php.net/rfc/rounding for details.
 

Zend/zend_vm.h

@@ -21,9 +21,13 @@
 #ifndef ZEND_VM_H
 #define ZEND_VM_H
 
+BEGIN_EXTERN_C()
+
 ZEND_API void zend_vm_use_old_executor(void);
 ZEND_API void zend_vm_set_opcode_handler(zend_op* opcode);
 
+END_EXTERN_C()
+
 #define ZEND_VM_SET_OPCODE_HANDLER(opline) zend_vm_set_opcode_handler(opline)
 
 #endif

Zend/zend_vm_opcodes.h

@@ -21,8 +21,12 @@
 #ifndef ZEND_VM_OPCODES_H
 #define ZEND_VM_OPCODES_H
 
+BEGIN_EXTERN_C()
+
 ZEND_API const char *zend_get_opcode_name(zend_uchar opcode);
 
+END_EXTERN_C()
+
 #define ZEND_NOP                               0
 #define ZEND_ADD                               1
 #define ZEND_SUB                               2