67108a5 Auto-sync with upstream master

Authored and Committed by fweimer 6 years ago
    Auto-sync with upstream master
    
    Upstream commit: 11c4f5010c58029e73e656d5df4f8f42c9b8e877
    
    - crypt: Use NSPR header files in addition to NSS header files (#1489339)
    - math: Fix yn(n,0) without SVID wrapper (swbz#22244)
    - math: Fix log2(0) and log(10) in downward rounding (swbz#22243)
    - math: Add C++ versions of iscanonical for ldbl-96, ldbl-128ibm (swbz#22235)
    - powerpc: Optimize memrchr for power8
    - Hide various internal functions (swbz#18822)
    
        
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