AC_PREREQ([2.60])
AC_INIT([libsecp256k1],[0.1])
-AC_CONFIG_AUX_DIR([src/build-aux])
-AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([build-aux/m4])
AC_CANONICAL_HOST
AH_TOP([#ifndef LIBSECP256K1_CONFIG_H])
AH_TOP([#define LIBSECP256K1_CONFIG_H])
-AH_BOTTOM([#endif //LIBSECP256K1_CONFIG_H])
-AM_INIT_AUTOMAKE([foreign])
+AH_BOTTOM([#endif /*LIBSECP256K1_CONFIG_H*/])
+AM_INIT_AUTOMAKE([foreign subdir-objects])
LT_INIT
-AC_PROG_CC
-AC_PROG_CPP
-AC_PROG_INSTALL
-AC_PROG_SED
+dnl make the compilation flags quiet unless V=1 is used
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
PKG_PROG_PKG_CONFIG
AC_PATH_TOOL(AR, ar)
AC_PATH_TOOL(RANLIB, ranlib)
AC_PATH_TOOL(STRIP, strip)
+AX_PROG_CC_FOR_BUILD
+
+if test "x$CFLAGS" = "x"; then
+ CFLAGS="-O3 -g"
+fi
-AC_PROG_CC_C99
-if test x"$ac_cv_prog_cc_c99" == x"no"; then
- AC_MSG_ERROR([c99 compiler support required])
+AM_PROG_CC_C_O
+
+AC_PROG_CC_C89
+if test x"$ac_cv_prog_cc_c89" = x"no"; then
+ AC_MSG_ERROR([c89 compiler support required])
fi
case $host in
esac
case $host_os in
- darwin*)
- CPPFLAGS="$CPPFLAGS -I/opt/local/include"
- LDFLAGS="$LDFLAGS -L/opt/local/lib"
- ;;
+ *darwin*)
+ if test x$cross_compiling != xyes; then
+ AC_PATH_PROG([BREW],brew,)
+ if test x$BREW != x; then
+ dnl These Homebrew packages may be keg-only, meaning that they won't be found
+ dnl in expected paths because they may conflict with system files. Ask
+ dnl Homebrew where each one is located, then adjust paths accordingly.
+
+ openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
+ gmp_prefix=`$BREW --prefix gmp 2>/dev/null`
+ if test x$openssl_prefix != x; then
+ PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
+ export PKG_CONFIG_PATH
+ fi
+ if test x$gmp_prefix != x; then
+ GMP_CPPFLAGS="-I$gmp_prefix/include"
+ GMP_LIBS="-L$gmp_prefix/lib"
+ fi
+ else
+ AC_PATH_PROG([PORT],port,)
+ dnl if homebrew isn't installed and macports is, add the macports default paths
+ dnl as a last resort.
+ if test x$PORT != x; then
+ CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"
+ LDFLAGS="$LDFLAGS -L/opt/local/lib"
+ fi
+ fi
+ fi
+ ;;
esac
+CFLAGS="$CFLAGS -W"
+
+warn_CFLAGS="-std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wno-unused-function -Wno-long-long -Wno-overlength-strings"
+saved_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS $warn_CFLAGS"
+AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
+ [ AC_MSG_RESULT([yes]) ],
+ [ AC_MSG_RESULT([no])
+ CFLAGS="$saved_CFLAGS"
+ ])
+
+
AC_ARG_ENABLE(benchmark,
- AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is yes)]),
+ AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is no)]),
[use_benchmark=$enableval],
- [use_benchmark=yes])
+ [use_benchmark=no])
AC_ARG_ENABLE(tests,
AS_HELP_STRING([--enable-tests],[compile tests (default is yes)]),
AS_HELP_STRING([--enable-endomorphism],[enable endomorphism (default is no)]),
[use_endomorphism=$enableval],
[use_endomorphism=no])
+
+AC_ARG_ENABLE(ecmult_static_precomputation,
+ AS_HELP_STRING([--enable-ecmult-static-precomputation],[enable precomputed ecmult table for signing (default is yes)]),
+ [use_ecmult_static_precomputation=$enableval],
+ [use_ecmult_static_precomputation=yes])
-AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=gmp|64bit|64bit_asm|32bit|auto],
+AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=64bit|32bit|auto],
[Specify Field Implementation. Default is auto])],[req_field=$withval], [req_field=auto])
-AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|auto],
+AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|no|auto],
[Specify Bignum Implementation. Default is auto])],[req_bignum=$withval], [req_bignum=auto])
+AC_ARG_WITH([scalar], [AS_HELP_STRING([--with-scalar=64bit|32bit|auto],
+[Specify scalar implementation. Default is auto])],[req_scalar=$withval], [req_scalar=auto])
+
+AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|no|auto]
+[Specify assembly optimizations to use. Default is auto])],[req_asm=$withval], [req_asm=auto])
+
AC_CHECK_TYPES([__int128])
-AC_DEFUN([SECP_INT128_CHECK],[
-has_int128=$ac_cv_type___int128
-if test x"$has_int128" != x"yes" && test x"$set_field" = x"64bit"; then
- AC_MSG_ERROR([$set_field field support explicitly requested but is not compatible with this host])
-fi
-])
+AC_MSG_CHECKING([for __builtin_expect])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() {__builtin_expect(0,0);}]])],
+ [ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]) ],
+ [ AC_MSG_RESULT([no])
+ ])
-AC_DEFUN([SECP_64BIT_ASM_CHECK],[
-if test x"$host_cpu" == x"x86_64"; then
- AC_CHECK_PROG(YASM, yasm, yasm)
-else
- if test x"$set_field" = x"64bit_asm"; then
- AC_MSG_ERROR([$set_field field support explicitly requested but is not compatible with this host])
+if test x"$req_asm" = x"auto"; then
+ SECP_64BIT_ASM_CHECK
+ if test x"$has_64bit_asm" = x"yes"; then
+ set_asm=x86_64
fi
-fi
-if test x$YASM = x; then
- if test x"$set_field" = x"64bit_asm"; then
- AC_MSG_ERROR([$set_field field support explicitly requested but yasm was not found])
+ if test x"$set_asm" = x; then
+ set_asm=no
fi
- has_64bit_asm=no
else
- case x"$host_os" in
- xdarwin*)
- YASM_BINFMT=macho64
+ set_asm=$req_asm
+ case $set_asm in
+ x86_64)
+ SECP_64BIT_ASM_CHECK
+ if test x"$has_64bit_asm" != x"yes"; then
+ AC_MSG_ERROR([x86_64 assembly optimization requested but not available])
+ fi
;;
- x*-gnux32)
- YASM_BINFMT=elfx32
+ no)
;;
*)
- YASM_BINFMT=elf64
+ AC_MSG_ERROR([invalid assembly optimization selection])
;;
esac
- if $YASM -f help | grep -q $YASM_BINFMT; then
- has_64bit_asm=yes
- else
- if test x"$set_field" = x"64bit_asm"; then
- AC_MSG_ERROR([$set_field field support explicitly requested but yasm doesn't support $YASM_BINFMT format])
- fi
- AC_MSG_WARN([yasm too old for $YASM_BINFMT format])
- has_64bit_asm=no
- fi
fi
-])
-
-AC_DEFUN([SECP_OPENSSL_CHECK],[
-if test x"$use_pkgconfig" = x"yes"; then
- : #NOP
- m4_ifdef([PKG_CHECK_MODULES],[
- PKG_CHECK_MODULES([CRYPTO], [libcrypto], [has_libcrypto=yes; AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed])],[has_libcrypto=no])
- : #NOP
- ])
-else
- AC_CHECK_HEADER(openssl/crypto.h,[AC_CHECK_LIB(crypto, main,[has_libcrypto=yes; CRYPTO_LIBS=-lcrypto; AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed])]
-)])
- LIBS=
-fi
-if test x"$has_libcrypto" == x"yes" && test x"$has_openssl_ec" = x; then
- AC_MSG_CHECKING(for EC functions in libcrypto)
- AC_TRY_COMPILE([
- #include <openssl/ec.h>
- #include <openssl/ecdsa.h>
- #include <openssl/obj_mac.h>],[
- EC_KEY *eckey = EC_KEY_new_by_curve_name(NID_secp256k1);
- ECDSA_sign(0, NULL, 0, NULL, NULL, eckey);
- ECDSA_verify(0, NULL, 0, NULL, 0, eckey);
- EC_KEY_free(eckey);
- ],[has_openssl_ec=yes], [has_openssl_ec=no])
- AC_MSG_RESULT([$has_openssl_ec])
-fi
-])
-
-AC_CHECK_DECL(__builtin_expect,AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]),,)
-
-AC_DEFUN([SECP_GMP_CHECK],[
-if test x"$has_gmp" != x"yes"; then
- AC_CHECK_HEADER(gmp.h,[AC_CHECK_LIB(gmp, __gmpz_init,[has_gmp=yes; GMP_LIBS=-lgmp; AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])])])
-fi
-if test x"$set_field" = x"gmp" && test x"$has_gmp" != x"yes"; then
- AC_MSG_ERROR([$set_field field support explicitly requested but libgmp was not found])
-fi
-if test x"$set_bignum" = x"gmp" && test x"$has_gmp" != x"yes"; then
- AC_MSG_ERROR([$set_bignum field support explicitly requested but libgmp was not found])
-fi
-])
if test x"$req_field" = x"auto"; then
- SECP_64BIT_ASM_CHECK
- if test x"$has_64bit_asm" = x"yes"; then
- set_field=64bit_asm
+ if test x"set_asm" = x"x86_64"; then
+ set_field=64bit
fi
-
if test x"$set_field" = x; then
SECP_INT128_CHECK
if test x"$has_int128" = x"yes"; then
set_field=64bit
fi
fi
-
- if test x"$set_field" = x; then
- SECP_GMP_CHECK
- if test x"$has_gmp" = x"yes"; then
- set_field=gmp
- fi
- fi
-
if test x"$set_field" = x; then
set_field=32bit
fi
else
set_field=$req_field
case $set_field in
- 64bit_asm)
- SECP_64BIT_ASM_CHECK
+ 64bit)
+ if test x"$set_asm" != x"x86_64"; then
+ SECP_INT128_CHECK
+ if test x"$has_int128" != x"yes"; then
+ AC_MSG_ERROR([64bit field explicitly requested but neither __int128 support or x86_64 assembly available])
+ fi
+ fi
;;
+ 32bit)
+ ;;
+ *)
+ AC_MSG_ERROR([invalid field implementation selection])
+ ;;
+ esac
+fi
+
+if test x"$req_scalar" = x"auto"; then
+ SECP_INT128_CHECK
+ if test x"$has_int128" = x"yes"; then
+ set_scalar=64bit
+ fi
+ if test x"$set_scalar" = x; then
+ set_scalar=32bit
+ fi
+else
+ set_scalar=$req_scalar
+ case $set_scalar in
64bit)
SECP_INT128_CHECK
- ;;
- gmp)
- SECP_GMP_CHECK
+ if test x"$has_int128" != x"yes"; then
+ AC_MSG_ERROR([64bit scalar explicitly requested but __int128 support not available])
+ fi
;;
32bit)
;;
*)
- AC_MSG_ERROR([invalid field implementation selection])
+ AC_MSG_ERROR([invalid scalar implementation selected])
;;
esac
fi
fi
if test x"$set_bignum" = x; then
- AC_MSG_ERROR([no working bignum implementation found])
+ set_bignum=no
fi
else
set_bignum=$req_bignum
case $set_bignum in
gmp)
SECP_GMP_CHECK
+ if test x"$has_gmp" != x"yes"; then
+ AC_MSG_ERROR([gmp bignum explicitly requested but libgmp not available])
+ fi
;;
- openssl)
- SECP_OPENSSL_CHECK
+ no)
;;
*)
AC_MSG_ERROR([invalid bignum implementation selection])
esac
fi
+# select assembly optimization
+case $set_asm in
+x86_64)
+ AC_DEFINE(USE_ASM_X86_64, 1, [Define this symbol to enable x86_64 assembly optimizations])
+ ;;
+no)
+ ;;
+*)
+ AC_MSG_ERROR([invalid assembly optimizations])
+ ;;
+esac
+
# select field implementation
case $set_field in
-64bit_asm)
- AC_DEFINE(USE_FIELD_5X52_ASM, 1, [Define this symbol to use the assembly version for the 5x52 field implementation])
- AC_DEFINE(USE_FIELD_5X52, 1, [Define this symbol to use the FIELD_5X52 implementation])
- ;;
64bit)
- AC_DEFINE(USE_FIELD_5X52_INT128, 1, [Define this symbol to use the __int128 version for the 5x52 field implementation])
AC_DEFINE(USE_FIELD_5X52, 1, [Define this symbol to use the FIELD_5X52 implementation])
;;
-gmp)
- AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])
- AC_DEFINE(USE_FIELD_GMP, 1, [Define this symbol to use the FIELD_GMP implementation])
- ;;
32bit)
AC_DEFINE(USE_FIELD_10X26, 1, [Define this symbol to use the FIELD_10X26 implementation])
;;
# select bignum implementation
case $set_bignum in
gmp)
- AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])
- AC_DEFINE(USE_NUM_GMP, 1, [Define this symbol to use the gmp implementation])
- AC_DEFINE(USE_FIELD_INV_NUM, 1, [Define this symbol to use the USE_FIELD_INV_NUM implementation])
+ AC_DEFINE(HAVE_LIBGMP, 1, [Define this symbol if libgmp is installed])
+ AC_DEFINE(USE_NUM_GMP, 1, [Define this symbol to use the gmp implementation for num])
+ AC_DEFINE(USE_FIELD_INV_NUM, 1, [Define this symbol to use the num-based field inverse implementation])
+ AC_DEFINE(USE_SCALAR_INV_NUM, 1, [Define this symbol to use the num-based scalar inverse implementation])
+ ;;
+no)
+ AC_DEFINE(USE_NUM_NONE, 1, [Define this symbol to use no num implementation])
+ AC_DEFINE(USE_FIELD_INV_BUILTIN, 1, [Define this symbol to use the native field inverse implementation])
+ AC_DEFINE(USE_SCALAR_INV_BUILTIN, 1, [Define this symbol to use the native scalar inverse implementation])
;;
*)
AC_MSG_ERROR([invalid bignum implementation])
;;
esac
+#select scalar implementation
+case $set_scalar in
+64bit)
+ AC_DEFINE(USE_SCALAR_4X64, 1, [Define this symbol to use the 4x64 scalar implementation])
+ ;;
+32bit)
+ AC_DEFINE(USE_SCALAR_8X32, 1, [Define this symbol to use the 8x32 scalar implementation])
+ ;;
+*)
+ AC_MSG_ERROR([invalid scalar implementation])
+ ;;
+esac
+
if test x"$use_tests" = x"yes"; then
SECP_OPENSSL_CHECK
- if test x"$has_openssl_ec" == x"yes"; then
+ if test x"$has_openssl_ec" = x"yes"; then
AC_DEFINE(ENABLE_OPENSSL_TESTS, 1, [Define this symbol if OpenSSL EC functions are available])
SECP_TEST_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS"
SECP_TEST_LIBS="$CRYPTO_LIBS"
fi
fi
-if test x"$set_field" = x"gmp" || test x"$set_bignum" = x"gmp"; then
+if test x"$set_bignum" = x"gmp"; then
SECP_LIBS="$SECP_LIBS $GMP_LIBS"
+ SECP_INCLUDES="$SECP_INCLUDES $GMP_CPPFLAGS"
fi
if test x"$use_endomorphism" = x"yes"; then
- AC_DEFINE(USE_ENDOMORPHISM, 1, [Define this symbol to use endomorphism])
+ AC_DEFINE(USE_ENDOMORPHISM, 1, [Define this symbol to use endomorphism optimization])
fi
+if test x"$use_ecmult_static_precomputation" = x"yes"; then
+ AC_DEFINE(USE_ECMULT_STATIC_PRECOMPUTATION, 1, [Define this symbol to use a statically generated ecmult table])
+fi
+
+AC_C_BIGENDIAN()
+
+AC_MSG_NOTICE([Using assembly optimizations: $set_asm])
AC_MSG_NOTICE([Using field implementation: $set_field])
AC_MSG_NOTICE([Using bignum implementation: $set_bignum])
+AC_MSG_NOTICE([Using scalar implementation: $set_scalar])
+AC_MSG_NOTICE([Using endomorphism optimizations: $use_endomorphism])
AC_CONFIG_HEADERS([src/libsecp256k1-config.h])
AC_CONFIG_FILES([Makefile libsecp256k1.pc])
AC_SUBST(SECP_LIBS)
AC_SUBST(SECP_TEST_LIBS)
AC_SUBST(SECP_TEST_INCLUDES)
-AC_SUBST(YASM_BINFMT)
-AM_CONDITIONAL([USE_ASM], [test x"$set_field" == x"64bit_asm"])
AM_CONDITIONAL([USE_TESTS], [test x"$use_tests" != x"no"])
-AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" != x"no"])
+AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])
+AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$use_ecmult_static_precomputation" = x"yes"])
+
+dnl make sure nothing new is exported so that we don't break the cache
+PKGCONFIG_PATH_TEMP="$PKG_CONFIG_PATH"
+unset PKG_CONFIG_PATH
+PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"
+
AC_OUTPUT
projects / secp256k1.git / blobdiff