GMP 6.1.2: 32-bit ARM build failure on 64-bit hardware with CFLAGS=-g

[Torbjörn Granlund]

  > What CFLAGS does GMP use if you don't override its detection?
  
  
  $ grep ^CFLAGS Makefile
  CFLAGS = -O2 -pedantic -fomit-frame-pointer -march=armv8-a -mfloat-abi=hard
  -mfpu=neon -mtune=cortex-a53
  
  Is it up to me to include all that in the CFLAGS that I specify?

If you override flags for choosing the architecture level and/or ABI,
you cannot expect things to work.

  If so, is there another easy with debug info, without knowing in
  advance what compiler flags configure would have autodetected?
  
Cut and paste?

-- 
Torbjörn
Please encrypt, key id 0xC8601622