diff --git a/debian-base/Dockerfile b/debian-base/Dockerfile
index 9454bc9..dd50ef1 100644
--- a/debian-base/Dockerfile
+++ b/debian-base/Dockerfile
@@ -15,7 +15,7 @@ RUN apt-get update && apt-get install -y subversion git zip unzip wget curl htop
  && rm -rf /var/cache/apt/archives/*
 
 # last cmake from sources, into /opt
-ENV CUR_CMAKE_VERSION=4.3.2
+ENV CUR_CMAKE_VERSION=3.20.0
 WORKDIR /soft
 RUN wget -nv https://github.com/Kitware/CMake/releases/download/v${CUR_CMAKE_VERSION}/cmake-${CUR_CMAKE_VERSION}-Linux-x86_64.sh \
  && mkdir -p /opt/cmake \
diff --git a/windows/fftw.cmake.patch b/windows/fftw.cmake.patch
index 5448149..d71c4a5 100644
--- a/windows/fftw.cmake.patch
+++ b/windows/fftw.cmake.patch
@@ -6,4 +6,4 @@
 
  if (NOT DEFINED CMAKE_BUILD_TYPE)
    set (CMAKE_BUILD_TYPE Release CACHE STRING "Build type")
-   
\ No newline at end of file
+   
diff --git a/windows/qt-5.15.18-bluetooth-mingw.patch b/windows/qt-5.15.18-bluetooth-mingw.patch
new file mode 100644
index 0000000..7462712
--- /dev/null
+++ b/windows/qt-5.15.18-bluetooth-mingw.patch
@@ -0,0 +1,11 @@
+--- qbluetoothservicediscoveryagent_win.cpp     2025-03-30 11:49:36.000000000 +0000
++++ qbluetoothservicediscoveryagent_win.cpp.new 2026-05-06 11:18:55.546127656 +0000
+@@ -211,7 +211,7 @@
+ #else
+ # define SDP_CALLBACK QT_WIN_CALLBACK
+ #endif
+-static BOOL SDP_CALLBACK bluetoothSdpCallback(ULONG attributeId, LPBYTE valueStream, ULONG streamSize, LPVOID param)
++static BOOL SDP_CALLBACK __attribute__((stdcall)) bluetoothSdpCallback(ULONG attributeId, LPBYTE valueStream, ULONG streamSize, LPVOID param)
+ {
+     QBluetoothServiceInfo *result = static_cast<QBluetoothServiceInfo*>(param);
+
diff --git a/windows/qt-5.15.18-location-mbgl-mapbox-include.patch b/windows/qt-5.15.18-location-mbgl-mapbox-include.patch
new file mode 100644
index 0000000..d00aa8e
--- /dev/null
+++ b/windows/qt-5.15.18-location-mbgl-mapbox-include.patch
@@ -0,0 +1,10 @@
+--- variant.hpp 2025-03-30 14:49:42.000000000 +0300
++++ variant.hpp.new     2026-05-06 15:20:14.230916400 +0300
+@@ -11,6 +11,7 @@
+ #include <typeinfo>
+ #include <utility>
+ #include <functional>
++#include <cstdint>
+
+ #include <mapbox/recursive_wrapper.hpp>
+ #include <mapbox/variant_visitor.hpp>
diff --git a/windows/qt-5.15.18-location-mbgl-rapidjson.patch b/windows/qt-5.15.18-location-mbgl-rapidjson.patch
new file mode 100644
index 0000000..cca0ed6
--- /dev/null
+++ b/windows/qt-5.15.18-location-mbgl-rapidjson.patch
@@ -0,0 +1,11 @@
+--- document.h  2025-03-30 14:49:42.000000000 +0300
++++ document.h.new      2026-05-06 15:15:34.964280900 +0300
+@@ -316,7 +316,7 @@
+
+     GenericStringRef(const GenericStringRef& rhs) : s(rhs.s), length(rhs.length) {}
+
+-    GenericStringRef& operator=(const GenericStringRef& rhs) { s = rhs.s; length = rhs.length; }
++    GenericStringRef& operator=(const GenericStringRef& rhs) { s = rhs.s; const_cast<SizeType&>(length) = rhs.length; }
+
+     //! implicit conversion to plain CharType pointer
+     operator const Ch *() const { return s; }
diff --git a/windows/qt-5.15.18-location-mbgl-util-include.patch b/windows/qt-5.15.18-location-mbgl-util-include.patch
new file mode 100644
index 0000000..80f1b79
--- /dev/null
+++ b/windows/qt-5.15.18-location-mbgl-util-include.patch
@@ -0,0 +1,10 @@
+--- string.hpp  2025-03-30 14:49:42.000000000 +0300
++++ string.hpp.new      2026-05-06 15:14:40.188710700 +0300
+@@ -5,6 +5,7 @@
+ #include <cassert>
+ #include <cstdlib>
+ #include <exception>
++#include <cstdint>
+
+ // Polyfill needed by Qt when building for Android with GCC
+ #if defined(__ANDROID__) && defined(__GLIBCXX__)
diff --git a/windows/qt-5.15.18-qcollectiongenerator.patch b/windows/qt-5.15.18-qcollectiongenerator.patch
new file mode 100644
index 0000000..9cde283
--- /dev/null
+++ b/windows/qt-5.15.18-qcollectiongenerator.patch
@@ -0,0 +1,11 @@
+--- main.c      2025-03-30 14:49:56.000000000 +0300
++++ main.c.new  2026-05-06 15:35:17.502272400 +0300
+@@ -98,7 +98,7 @@
+
+     argv[0] = newPath;
+ #ifdef _WIN32
+-    const intptr_t ret = _spawnvp(_P_WAIT, newPath, argv);
++    const intptr_t ret = _spawnvp(_P_WAIT, newPath, (const char * const*)argv);
+     if (ret == -1) {
+         fprintf(stderr, "Error while executing \"%s\" tool.\n", newPath);
+         return 3;