[libmath-prime-util-perl] 29/40: Not all gcc targets support uint128, e.g. Atom

[Partha P. Mukherjee]

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ppm-guest pushed a commit to annotated tag v0.30
in repository libmath-prime-util-perl.

commit 1a75d71f4e5da3edfd659af942607bcd38ebd8d5
Author: Dana Jacobsen <dana at acm.org>
Date:   Wed Jul 24 17:02:52 2013 -0700

    Not all gcc targets support uint128, e.g. Atom
---
 mulmod.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mulmod.h b/mulmod.h
index 91c6ca0..a4a960c 100644
--- a/mulmod.h
+++ b/mulmod.h
@@ -49,7 +49,9 @@
   #define mulmod(a,b,m) _mulmod(a,b,m)
   #define sqrmod(n,m)   _mulmod(n,n,m)
 
-#elif __GNUC__ == 4 && __GNUC_MINOR__ >= 4
+#elif BITS_PER_WORD == 64 && __GNUC__ == 4 && __GNUC_MINOR__ >= 4 && (defined(__LP64__) || defined(__x86_64__) || defined(__powerpc64__) || defined(_M_X64) || defined(_M_IX86))
+
+  /* We're 64-bit, using a modern gcc, and the target has some 128-bit type */
 
   #if __GNUC__ == 4 && __GNUC_MINOR__ >= 4 && __GNUC_MINOR__ < 6
     typedef unsigned int uint128_t __attribute__ ((__mode__ (TI)));

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