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[bug #57071] Fix math.h and function names that block 64-bit double


From: Georg-Johann Lay
Subject: [bug #57071] Fix math.h and function names that block 64-bit double
Date: Thu, 16 Jan 2020 10:58:00 -0500 (EST)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:64.0) Gecko/20100101 Firefox/64.0

Follow-up Comment #12, bug #57071 (project avr-libc):

Here is a small addendum which fixes some problems that I ran into when
building avr-libc with avr-gcc v3.4.6:

1) The compiler might not recognize -Wno-sign-compare or
-Wno-maybe-uninitialized which are used to silence some build warnings.

2) Old GCC does not built-in define __SIZEOF_DOUBLE__ and
__SIZEOF_LONG_DOUBLE__, hence do it by hand.



(file #48240)
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Additional Item Attachment:

File name: math64-addend1.diff            Size:2 KB
    <https://savannah.nongnu.org/file/math64-addend1.diff?file_id=48240>



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