Steps to reproduce: 1. Make a simple opt build on Windows 2. Run 'make buildsymbols' Result: zip error: Nothing to do! (../firefox-4.0b2pre.en-US.win32.crashreporter-symbols.zip) make: *** [buildsymbols] Error 12 N.B. this error message can also result from a busted dump_syms.exe (e.g. bug 575519). But in this case the problem is that I have no pdb files. Expected: Something along the lines of "To use 'make buildsymbols', you must put 'ac_add_options --enable-debug-symbols' in your mozconfig and rebuild."
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