From 145d813385c8cf8c8fbd13df5e63162756ea72c5 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Wed, 26 Feb 2025 23:27:06 +0100
Subject: [PATCH] appveyor: add support for old CMake 3.12.2

---
 appveyor.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/appveyor.sh b/appveyor.sh
index 729d8b355d..a5113ec4bc 100644
--- a/appveyor.sh
+++ b/appveyor.sh
@@ -54,8 +54,15 @@ if [ "${BUILD_SYSTEM}" = 'CMake' ]; then
     [ -n "${TOOLSET:-}" ] && options+=" -T ${TOOLSET}"
     [ "${OPENSSL}" = 'ON' ] && options+=" -DOPENSSL_ROOT_DIR=${openssl_root_win}"
     [ -n "${CURLDEBUG:-}" ] && options+=" -DENABLE_CURLDEBUG=${CURLDEBUG}"
+    if [ "${APPVEYOR_BUILD_WORKER_IMAGE}" = 'Visual Studio 2013' ]; then
+      mkdir "_bld${_chkprefill}"
+      cd "_bld${_chkprefill}"
+      options+=' ..'
+    else
+      options+=" -B _bld${_chkprefill}"
+    fi
     # shellcheck disable=SC2086
-    cmake -B "_bld${_chkprefill}" -G "${PRJ_GEN}" ${TARGET:-} \
+    cmake -G "${PRJ_GEN}" ${TARGET:-} \
       -DCMAKE_VS_GLOBALS=TrackFileAccess=false \
       -DCMAKE_UNITY_BUILD="${UNITY}" -DCURL_TEST_BUNDLES=ON \
       -DCURL_WERROR=ON \