[PATCH] Add support for building for windows on aarch64

Martin Storsjö martin at martin.st
Wed Mar 21 21:54:54 UTC 2018


The attached patch fixes building GMP for windows on aarch64 using the 
llvm-mingw toolchain (clang with a mingw sdk, built on top of llvm tools).

The main issue is, just like on x86_64, "long" still is 32 bit, while the 
current configure check on arm/aarch64 checks that sizeof(long) == 8 in 
order to use a 64 bit ABI. (On x86_64, no such check is executed.) The 
patch changes the check to test sizeof(void*) instead.

// Martin
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