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| author | Wladimir J. van der Laan <laanwj@gmail.com> | 2016-08-16 11:34:12 +0200 |
|---|---|---|
| committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2016-08-16 11:34:43 +0200 |
| commit | 0237096df5299e9f0947e902153d93932f2ea13b (patch) | |
| tree | 0f42855d4cb68d8d4e7b69a85515eb46cf8b6b5b /src/secp256k1/build-aux/m4/bitcoin_secp.m4 | |
| parent | 2c2d471e18f0601c2767cf516425b2ecfcfd2126 (diff) | |
| parent | b2135359b3ad37cf2ac09b008079ddb237eff2c9 (diff) | |
Merge commit 'b2135359b3ad37cf2ac09b008079ddb237eff2c9'
Diffstat (limited to 'src/secp256k1/build-aux/m4/bitcoin_secp.m4')
| -rw-r--r-- | src/secp256k1/build-aux/m4/bitcoin_secp.m4 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/secp256k1/build-aux/m4/bitcoin_secp.m4 b/src/secp256k1/build-aux/m4/bitcoin_secp.m4 index d41bbb6487..b25d8adb92 100644 --- a/src/secp256k1/build-aux/m4/bitcoin_secp.m4 +++ b/src/secp256k1/build-aux/m4/bitcoin_secp.m4 @@ -3,13 +3,13 @@ AC_DEFUN([SECP_INT128_CHECK],[ has_int128=$ac_cv_type___int128 ]) -dnl +dnl escape "$0x" below using the m4 quadrigaph @S|@, and escape it again with a \ for the shell. AC_DEFUN([SECP_64BIT_ASM_CHECK],[ AC_MSG_CHECKING(for x86_64 assembly availability) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <stdint.h>]],[[ uint64_t a = 11, tmp; - __asm__ __volatile__("movq $0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); + __asm__ __volatile__("movq \@S|@0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); ]])],[has_64bit_asm=yes],[has_64bit_asm=no]) AC_MSG_RESULT([$has_64bit_asm]) ]) |