Issue 12404: Remove C89 incompatible code from mmap module.
Patch by Akira Kitada.
diff --git a/Misc/NEWS b/Misc/NEWS
index 60405dd..9dfd0ac 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -25,6 +25,9 @@
Library
-------
+- Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira
+ Kitada.
+
- Issue #12383: Fix subprocess module with env={}: don't copy the environment
variables, start with an empty environment.
diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index 36ca67d..da9283b 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -1140,12 +1140,13 @@
# endif
if (fd != -1 && fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) {
if (map_size == 0) {
+ off_t calc_size;
if (offset >= st.st_size) {
PyErr_SetString(PyExc_ValueError,
"mmap offset is greater than file size");
return NULL;
}
- off_t calc_size = st.st_size - offset;
+ calc_size = st.st_size - offset;
map_size = calc_size;
if (map_size != calc_size) {
PyErr_SetString(PyExc_ValueError,