BPO-41100: Support macOS 11 when building (GH-21113)
diff --git a/Misc/NEWS.d/next/macOS/2020-06-24-13-51-57.bpo-41100.mcHdc5.rst b/Misc/NEWS.d/next/macOS/2020-06-24-13-51-57.bpo-41100.mcHdc5.rst
new file mode 100644
index 0000000..ded66b5
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2020-06-24-13-51-57.bpo-41100.mcHdc5.rst
@@ -0,0 +1 @@
+Support macOS 11 when building.
diff --git a/configure b/configure
index c51f396..5024860 100755
--- a/configure
+++ b/configure
@@ -3426,7 +3426,7 @@
# has no effect, don't bother defining them
Darwin/[6789].*)
define_xopen_source=no;;
- Darwin/1[0-9].*)
+ Darwin/[12][0-9].*)
define_xopen_source=no;;
# On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
# used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
diff --git a/configure.ac b/configure.ac
index 70deefb..5a3e340 100644
--- a/configure.ac
+++ b/configure.ac
@@ -510,7 +510,7 @@
# has no effect, don't bother defining them
Darwin/@<:@6789@:>@.*)
define_xopen_source=no;;
- Darwin/1@<:@0-9@:>@.*)
+ Darwin/@<:@[12]@:>@@<:@0-9@:>@.*)
define_xopen_source=no;;
# On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
# used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined