Fix warnings in testdependencies

Author: mayeut

tests/integration/testdependencies/dependency.c

@@ -1,10 +1,12 @@
 #include "dependency.h"
 #include <malloc.h>
+#include <stdlib.h>
+#include <stdint.h>
 
 int dep_run()
 {
 #if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 17)
-    return (int)secure_getenv("NON_EXISTING_ENV_VARIABLE");
+    return (int)(intptr_t)secure_getenv("NON_EXISTING_ENV_VARIABLE");
 #elif defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
     return malloc_info(0, stdout);
 #else

tests/integration/testdependencies/setup.py

@@ -3,10 +3,10 @@
 from os import path
 from os import getenv
 
-cmd = 'gcc -shared -fPIC dependency.c -o libdependency.so'
+cmd = 'gcc -shared -fPIC -D_GNU_SOURCE dependency.c -o libdependency.so'
 subprocess.check_call(cmd.split())
 
-define_macros = []
+define_macros = [('_GNU_SOURCE', None)]
 libraries = []
 library_dirs = []
 

tests/integration/testdependencies/testdependencies.c

@@ -2,6 +2,8 @@
 #include "dependency.h"
 #else
 #include <malloc.h>
+#include <stdlib.h>
+#include <stdint.h>
 #endif
 #include <Python.h>
 
@@ -16,7 +18,7 @@ run(PyObject *self, PyObject *args)
 #ifdef WITH_DEPENDENCY
     res = dep_run();
 #elif defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 17)
-    res = (int)secure_getenv("NON_EXISTING_ENV_VARIABLE");
+    res = (int)(intptr_t)secure_getenv("NON_EXISTING_ENV_VARIABLE");
 #elif defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
     res = malloc_info(0, stdout);
 #else