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<p style="margin-top: 0px; margin-bottom: 0px;">Hello,</p>
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<p style="margin-top: 0px; margin-bottom: 0px;">Using CMake 3.8.1 on Windows 7 SP1.</p>
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<p style="margin-top: 0px; margin-bottom: 0px;">The following cmake expression will produce an error.</p>
<p style="margin-top: 0px; margin-bottom: 0px;">INSTALL(</p>
<p style="margin-top: 0px; margin-bottom: 0px;"> FILES</p>
<p style="margin-top: 0px; margin-bottom: 0px;"> $<$<CXX_COMPILER_ID:MSVC>${COMP_PATH}/win32/bin/comp.dll></p>
<p style="margin-top: 0px; margin-bottom: 0px;"> DESTINATION "${install_dir}")</p>
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<p style="margin-top: 0px; margin-bottom: 0px;">"CMake error: Error evaluating generator expression:
<span>$<CXX_COMPILER_ID:MSVC>.</span></p>
<p style="margin-top: 0px; margin-bottom: 0px;"><span><span>$<CXX_COMPILER_ID></span> may only be used with binary targets. It may not be used with add_custom_command</span></p>
<p style="margin-top: 0px; margin-bottom: 0px;"><span>or add_custom_target."</span></p>
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<p><span><span>Tried using "GNU" instead of "MSVC" but did not help.</span></span></p>
<p>Tried using "PROGRAMS" instead of "FILES" but <span>did not help.</span></p>
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<div>Replacing <span>$<CXX_COMPILER_ID:MSVC></span> with <span><span>$<BOOL:1> works, so it appears cmake-generator-expression work just not using compiler as key.</span></span></div>
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<p>What does binary target mean in this context?</p>
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<p>Why does this fail?</p>
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<p>Kind regards,</p>
<p>Lars<br>
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