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secp256k1/build-aux/m4/bitcoin_secp.m4

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build: fix x86_64 asm detection for some compilers I Noticed this on OSX with clang, though it likely happens elsewhere as well. The result is disabled x86_64 asm. Due to missing escaping, this $0 was interpreted as the function name SECP_64BIT_ASM_CHECK, causing the compile-check to be broken on some compilers. The actual check looked like this: int main() { uint64_t a = 11, tmp; __asm__ __volatile__("movq SECP_64BIT_ASM_CHECKx100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); return 0; } It seems even more odd that it compiled anywhere.
2016-01-04 16:36:46 +00:00
dnl escape "$0x" below using the m4 quadrigaph @S|@, and escape it again with a \ for the shell.
Use same build template as bitcoin. Add bitcoin_secp.m4.
2014-11-06 12:55:27 +00:00
AC_DEFUN([SECP_64BIT_ASM_CHECK],[
Convert YASM code into inline assembly
2014-12-02 16:47:32 +00:00
AC_MSG_CHECKING(for x86_64 assembly availability)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdint.h>]],[[
uint64_t a = 11, tmp;
build: fix x86_64 asm detection for some compilers I Noticed this on OSX with clang, though it likely happens elsewhere as well. The result is disabled x86_64 asm. Due to missing escaping, this $0 was interpreted as the function name SECP_64BIT_ASM_CHECK, causing the compile-check to be broken on some compilers. The actual check looked like this: int main() { uint64_t a = 11, tmp; __asm__ __volatile__("movq SECP_64BIT_ASM_CHECKx100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx"); return 0; } It seems even more odd that it compiled anywhere.
2016-01-04 16:36:46 +00:00
__asm__ __volatile__("movq \@S|@0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx");
Convert YASM code into inline assembly
2014-12-02 16:47:32 +00:00
]])],[has_64bit_asm=yes],[has_64bit_asm=no])
AC_MSG_RESULT([$has_64bit_asm])
Use same build template as bitcoin. Add bitcoin_secp.m4.
2014-11-06 12:55:27 +00:00
])
Ask brew for valgrind include path Valgrind is typically installed using brew on macOS. This commit makes ./configure detect this case set the appropriate include directory (in the same way as we already do for openssl and gmp).
2020-12-23 21:08:03 +00:00
AC_DEFUN([SECP_VALGRIND_CHECK],[
if test x"$has_valgrind" != x"yes"; then
CPPFLAGS_TEMP="$CPPFLAGS"
CPPFLAGS="$VALGRIND_CPPFLAGS $CPPFLAGS"
build: Add a check that Valgrind actually supports a host platform
2021-12-03 13:14:30 +00:00
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <valgrind/memcheck.h>
]], [[
#if defined(NVALGRIND)
# error "Valgrind does not support this platform."
#endif
]])], [has_valgrind=yes; AC_DEFINE(HAVE_VALGRIND,1,[Define this symbol if valgrind is installed, and it supports the host platform])])
Ask brew for valgrind include path Valgrind is typically installed using brew on macOS. This commit makes ./configure detect this case set the appropriate include directory (in the same way as we already do for openssl and gmp).
2020-12-23 21:08:03 +00:00
fi
])
build: Use own variable SECP_CFLAGS instead of touching user CFLAGS Fixes one of the items in #923, namely the warnings of the form '_putenv' redeclared without dllimport attribute: previous dllimport ignored [-Wattributes] This also cleans up the way we add CFLAGS, in particular flags enabling warnings. Now we perform some more fine-grained checking for flag support, which is not strictly necessary but the changes also help to document autoconf.ac.
2021-05-13 15:06:16 +00:00
dnl SECP_TRY_APPEND_CFLAGS(flags, VAR)
dnl Append flags to VAR if CC accepts them.
AC_DEFUN([SECP_TRY_APPEND_CFLAGS], [
AC_MSG_CHECKING([if ${CC} supports $1])
SECP_TRY_APPEND_CFLAGS_saved_CFLAGS="$CFLAGS"
CFLAGS="$1 $CFLAGS"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], [flag_works=yes], [flag_works=no])
AC_MSG_RESULT($flag_works)
CFLAGS="$SECP_TRY_APPEND_CFLAGS_saved_CFLAGS"
if test x"$flag_works" = x"yes"; then
$2="$$2 $1"
fi
unset flag_works
AC_SUBST($2)
])
configure: Add hidden --enable-dev-mode to enable all the stuff Co-authored-by: Elichai Turkel <elichai.turkel@gmail.com>
2022-02-23 20:03:15 +00:00
dnl SECP_SET_DEFAULT(VAR, default, default-dev-mode)
dnl Set VAR to default or default-dev-mode, depending on whether dev mode is enabled
AC_DEFUN([SECP_SET_DEFAULT], [
if test "${enable_dev_mode+set}" != set; then
AC_MSG_ERROR([[Set enable_dev_mode before calling SECP_SET_DEFAULT]])
fi
if test x"$enable_dev_mode" = x"yes"; then
$1="$3"
else
$1="$2"
fi
])