python: fix i686 semaphore lock

Fixes building qt5 for i686.

srcpkgs/python/patches/fix-i686-semaphore_lock.patch

@@ -10,7 +10,8 @@ which occured only for i686.
          /* This check is not an absolute guarantee that the semaphore
             does not rise above maxvalue. */
 +        int res = sem_getvalue(self->handle, &sval);
-         if (sem_getvalue(self->handle, &sval) < 0) {
+-        if (sem_getvalue(self->handle, &sval) < 0) {
++        if (res < 0) {
              return PyErr_SetFromErrno(PyExc_OSError);
 -        } else if (sval >= self->maxvalue) {
 +        } else if (res == 0 && sval >= self->maxvalue) {

srcpkgs/python/template

@@ -4,7 +4,7 @@
 #
 pkgname=python
 version=2.7.13
-revision=2
+revision=3
 wrksrc="Python-${version}"
 hostmakedepends="pkg-config"
 makedepends="