Added separated file to store macros

examples/helloworld/src/lib.rs

@@ -13,12 +13,6 @@ extern {
 
 }
 
-macro_rules! c_str {
-    ($s:expr) => { {
-        concat!($s, "\0").as_ptr() as *const c_char
-    } }
-}
-
 #[no_mangle]
 pub extern fn php_module_startup(type_: c_int, module_number: c_int) -> c_int {
    0 

src/lib.rs

@@ -5,5 +5,8 @@
 
 extern crate libc;
 
+#[macro_use]
+pub mod macros;
+
 pub mod zend;
 pub mod info;

src/macros.rs

@@ -0,0 +1,7 @@
+
+#[macro_export]
+macro_rules! c_str {
+    ($s:expr) => { {
+        concat!($s, "\0").as_ptr() as *const c_char
+    } }
+}

src/zend/module.rs

@@ -10,11 +10,6 @@ type GlobalsDtorFunc = extern fn (global: *const c_void) -> c_void;
 type PostDeactivateFunc = extern fn () -> c_int;
 
 
-macro_rules! c_str {
-    ($s:expr) => { {
-        concat!($s, "\0").as_ptr() as *const c_char
-    } }
-}
 
 pub struct ModuleDep {}
 pub struct Function {}