fix: force CFLAGS=-w via env + add verbose output on FreeRDP build failure

.gitea/workflows/build-release.yml

@@ -133,12 +133,15 @@ jobs:
           set(ZLIB_ROOT ${INSTALL_PREFIX})
           TCEOF
 
+          # Force suppress all warnings via environment — FreeRDP cmake overrides CMAKE_C_FLAGS
+          export CFLAGS="-w"
+          export CXXFLAGS="-w"
+
           # Configure — minimal client-only build
-          # -Wno-format suppresses MinGW PRIuz/PRIxz format string warnings
           cmake -B build -G Ninja \
             -DCMAKE_TOOLCHAIN_FILE=/tmp/mingw-toolchain.cmake \
             -DCMAKE_BUILD_TYPE=Release \
-            -DCMAKE_C_FLAGS="-Wno-format -Wno-error -w" \
+            -DCMAKE_C_FLAGS_INIT="-w" \
             -DCMAKE_INSTALL_PREFIX=/tmp/freerdp-install \
             -DBUILD_SHARED_LIBS=ON \
             -DWITH_CLIENT=OFF \
@@ -162,8 +165,12 @@ jobs:
             -DCHANNEL_URBDRC=OFF \
             -DWITH_OPENH264=OFF
 
-          # Build
-          cmake --build build --parallel $(nproc)
+          # Build — use -v for verbose output on failure
+          cmake --build build --parallel $(nproc) -- -v 2>&1 || {
+            echo "=== Build failed — retrying with single thread for clear error output ==="
+            cmake --build build -j1 -- -v 2>&1 | tail -50
+            exit 1
+          }
           cmake --install build
 
           echo "=== FreeRDP3 DLLs built ==="