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])
AM_INIT_AUTOMAKE([foreign])
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)
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="$CFLAGS -W"
+
+warn_CFLAGS="-Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wno-unused-function"
+saved_CFLAGS="$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)]),
[use_benchmark=$enableval],
AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=gmp|64bit|64bit_asm|32bit|auto],
[Specify Field Implementation. Default is auto])],[req_field=$withval], [req_field=auto])
-AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|openssl|auto],
+AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|auto],
[Specify Bignum Implementation. Default is auto])],[req_bignum=$withval], [req_bignum=auto])
-AC_CHECK_TYPES([__int128])
-
-AC_DEFUN([SECP_INT128_CHECK],[
-has_int128=$ac_cv_type___int128
-if test x"$has_int128" != x"yes" && test x"$set_field" = x"64bit"; then
- AC_MSG_ERROR([$set_field field support explicitly requested but is not compatible with this host])
-fi
-])
+AC_ARG_WITH([scalar], [AS_HELP_STRING([--with-scalar=64bit|32bit|auto],
+[Specify scalar implementation. Default is auto])],[req_scalar=$withval], [req_scalar=auto])
-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([$set_field field support explicitly requested but is not compatible with this host])
- fi
-fi
-if test x$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])
- fi
- has_64bit_asm=no
-else
- case x"$host_os" in
- xdarwin*)
- YASM_BINFMT=macho64
- ;;
- x*-gnux32)
- YASM_BINFMT=elfx32
- ;;
- *)
- YASM_BINFMT=elf64
- ;;
- 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([SSL], [libssl], [has_libssl=yes; AC_DEFINE(HAVE_LIBSSL,1,[Define this symbol if libssl is installed])],[has_libssl=no])
- 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/ssl.h,[has_libssl=yes; AC_DEFINE(HAVE_LIBSSL,1,[Define this symbol if libssl is installed])])
- 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"$has_libssl" == x"yes" && test x"$has_openssl_ec" = x; then
- AC_MSG_CHECKING(for EC functions in libssl)
- 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([$has_openssl_ec])
-fi
-if test x"$set_bignum" = x"openssl"; then
- if test x"$has_libssl" != x"yes"; then
- AC_MSG_ERROR([$set_bignum field support explicitly requested but libssl was not found])
- fi
- if test x"$has_libcrypto" != x"yes"; then
- AC_MSG_ERROR([$set_bignum field support explicitly requested but libcrypto was not found])
- fi
-fi
-])
+AC_CHECK_TYPES([__int128])
-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([$set_bignum field support explicitly requested but libgmp was not found])
-fi
-])
+AC_CHECK_DECL(__builtin_expect,AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]),,)
if test x"$req_field" = x"auto"; then
SECP_64BIT_ASM_CHECK
esac
fi
+if test x"$req_scalar" = x"auto"; then
+ if test x"$set_scalar" = x; then
+ SECP_INT128_CHECK
+ if test x"$has_int128" = x"yes"; then
+ set_scalar=64bit
+ fi
+ fi
+ if test x"$set_scalar" = x; then
+ set_scalar=32bit
+ fi
+else
+ set_scalar=$req_scalar
+ case $set_scalar in
+ 64bit)
+ SECP_INT128_CHECK
+ ;;
+ 32bit)
+ ;;
+ *)
+ AC_MSG_ERROR([invalid scalar implementation selected])
+ ;;
+ esac
+fi
+
if test x"$req_bignum" = x"auto"; then
SECP_GMP_CHECK
if test x"$has_gmp" = x"yes"; then
set_bignum=gmp
fi
- if test x"$set_bignum" = x; then
- SECP_OPENSSL_CHECK
- if test x"$has_libssl" = x"yes"; then
- set_bignum=openssl
- fi
- fi
-
if test x"$set_bignum" = x; then
AC_MSG_ERROR([no working bignum implementation found])
fi
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])
- ;;
-openssl)
- AC_DEFINE(USE_NUM_OPENSSL, 1,[Define this symbol to use the openssl implementation])
- AC_DEFINE(USE_FIELD_INV_BUILTIN, 1, [Define this symbol to use the FIELD_INV_BUILTIN implementation])
- SECP_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS"
- SECP_LIBS="$CRYPTO_LIBS"
+ 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])
;;
*)
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"$has_openssl_ec" == x"yes"; then
if test x"$set_field" = x"gmp" || 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_MSG_NOTICE([Using field implementation: $set_field])
AC_MSG_NOTICE([Using bignum implementation: $set_bignum])
+AC_MSG_NOTICE([Using scalar implementation: $set_scalar])
AC_CONFIG_HEADERS([src/libsecp256k1-config.h])
AC_CONFIG_FILES([Makefile libsecp256k1.pc])
AM_CONDITIONAL([USE_ASM], [test x"$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"])
+
+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