glibc: fix <fenv.h> with -m32

This update fixes the following issues for glibc:
- fails with -m32 on x86-64
- wrong reference counting can cause modules not to be unloaded when closed

Fixed bugs
bnc#791676
<fenv.h> fails with -m32 on x86-64
bnc#680125
dlclose() can not unload all dynamic libraries
Selected Binaries
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