cmake ninjas generator reports `multiple rules generate lib/zstd.lib`

[solomoncyj]

To Reproduce
clone the repo
cd build/cmake
cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX='C:\' -DCMAKE_SKIP_INSTALL_RPATH:BOOL=1 -G Ninja -DBUILD_SHARED_LIBS=1
cmake --build build
ninja: error: build.ninja:923: multiple rules generate lib/zstd.lib error is emmited

Expected behavior
builds correctly

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Desktop (please complete the following information):

• OS: windows
• Version 6e58e9a
• Compiler clang 21
• Flags all bulit in flags + -march=native -flto=thin
• Build system ninja

Additional context
Add any other context about the problem here.