[3.11] gh-95174: Add pthread stubs for WASI (GH-95234) (#95503)

Co-authored-by: Brett Cannon <brett@python.org>.
(cherry picked from commit 0fe645d6fd22a6f57e777a29e65cf9a4ff9785ae)

Co-authored-by: Christian Heimes <christian@python.org>

1 files changed, 14 insertions, 1 deletions

diff --git a/configure b/configure
index 6691527..91227f0 100755
--- a/configure
+++ b/configure
@@ -14153,11 +14153,16 @@ if test "x$ac_cv_lib_cma_pthread_create" = xyes; then :
 
 else
 
+    case $ac_sys_system in #(
+  WASI) :
+    posix_threads=stub ;; #(
+  *) :
     as_fn_error $? "could not find pthreads on your system" "$LINENO" 5
+     ;;
+esac
 
 fi
 
-
 fi
 
 fi
@@ -14315,6 +14320,14 @@ done
 
 fi
 
+if test "x$posix_threads" = xstub; then :
+
+
+$as_echo "#define HAVE_PTHREAD_STUBS 1" >>confdefs.h
+
+
+fi
+
 # Check for enable-ipv6
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking if --enable-ipv6 is specified" >&5