Commit 38847856 authored by Nick Mathewson's avatar Nick Mathewson 🤹
Browse files

Fix cross-compiling when 128-bit math compiles but won't link 

Apparently, there exist cross-compiling environments for arm7 where
you can compile a 64x64->128 multiply, but not link it.

Fixes bug 11729; bugfix on 0.2.4.8-alpha. Patch from 'conradev'.
parent 5d496963

changes/bug11729

0 → 100644
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Original line number Diff line number Diff line 
  o Minor bugfixes (build):

    - When deciding whether to build the 64-bit curve25519 implementation,

      detect platforms where we can compile 128-bit arithmetic but cannot

      link it. Fixes bug 11729; bugfix on 0.2.4.8-alpha. Patch

      from "conradev".

configure.ac

+1 −1
Original line number Diff line number Diff line
@@ -770,7 +770,7 @@ if test x$enable_curve25519 != xno; then 
        ])],

	[tor_cv_can_use_curve25519_donna_c64=yes],

        [tor_cv_can_use_curve25519_donna_c64=no],

	[AC_COMPILE_IFELSE(

	[AC_LINK_IFELSE(

          [AC_LANG_PROGRAM([dnl

        #include <stdint.h>

        typedef unsigned uint128_t __attribute__((mode(TI)));