AH_TOP([#define LIBSECP256K1_CONFIG_H])
AH_BOTTOM([#endif /*LIBSECP256K1_CONFIG_H*/])
AM_INIT_AUTOMAKE([foreign subdir-objects])
+
+# Set -g if CFLAGS are not already set, which matches the default autoconf
+# behavior (see PROG_CC in the Autoconf manual) with the exception that we don't
+# set -O2 here because we set it in any case (see further down).
+: ${CFLAGS="-g"}
LT_INIT
dnl make the compilation flags quiet unless V=1 is used
AC_PATH_TOOL(STRIP, strip)
AX_PROG_CC_FOR_BUILD
-if test "x$CFLAGS" = "x"; then
- CFLAGS="-g"
-fi
-
AM_PROG_CC_C_O
AC_PROG_CC_C89
if test x$openssl_prefix != x; then
PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH
+ CRYPTO_CPPFLAGS="-I$openssl_prefix/include"
fi
if test x$gmp_prefix != x; then
GMP_CPPFLAGS="-I$gmp_prefix/include"
;;
esac
-CFLAGS="$CFLAGS -W"
+CFLAGS="-W $CFLAGS"
warn_CFLAGS="-std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wno-unused-function -Wno-long-long -Wno-overlength-strings"
saved_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS $warn_CFLAGS"
+CFLAGS="$warn_CFLAGS $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],
])
saved_CFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -fvisibility=hidden"
+CFLAGS="-fvisibility=hidden $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],
[enable_module_recovery=$enableval],
[enable_module_recovery=no])
+AC_ARG_ENABLE(module_extrakeys,
+ AS_HELP_STRING([--enable-module-extrakeys],[enable extrakeys module (experimental)]),
+ [enable_module_extrakeys=$enableval],
+ [enable_module_extrakeys=no])
+
AC_ARG_ENABLE(external_default_callbacks,
AS_HELP_STRING([--enable-external-default-callbacks],[enable external default callback functions [default=no]]),
[use_external_default_callbacks=$enableval],
[use_external_default_callbacks=no])
-AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=64bit|32bit|auto],
-[finite field implementation to use [default=auto]])],[req_field=$withval], [req_field=auto])
+dnl Test-only override of the (autodetected by the C code) "widemul" setting.
+dnl Legal values are int64 (for [u]int64_t), int128 (for [unsigned] __int128), and auto (the default).
+AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_widemul=auto])
AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|no|auto],
[bignum implementation to use [default=auto]])],[req_bignum=$withval], [req_bignum=auto])
-AC_ARG_WITH([scalar], [AS_HELP_STRING([--with-scalar=64bit|32bit|auto],
-[scalar implementation to use [default=auto]])],[req_scalar=$withval], [req_scalar=auto])
-
AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm|no|auto],
[assembly optimizations to use (experimental: arm) [default=auto]])],[req_asm=$withval], [req_asm=auto])
)],
[req_ecmult_gen_precision=$withval], [req_ecmult_gen_precision=auto])
-AC_CHECK_TYPES([__int128])
-
AC_CHECK_HEADER([valgrind/memcheck.h], [enable_valgrind=yes], [enable_valgrind=no], [])
AM_CONDITIONAL([VALGRIND_ENABLED],[test "$enable_valgrind" = "yes"])
if test x"$enable_coverage" = x"yes"; then
AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code])
- CFLAGS="$CFLAGS -O0 --coverage"
- LDFLAGS="$LDFLAGS --coverage"
+ CFLAGS="-O0 --coverage $CFLAGS"
+ LDFLAGS="--coverage $LDFLAGS"
else
- CFLAGS="$CFLAGS -O3"
+ CFLAGS="-O2 $CFLAGS"
fi
if test x"$use_ecmult_static_precomputation" != x"no"; then
warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
saved_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $warn_CFLAGS_FOR_BUILD"
+ CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([], [])],
[working_native_cc=yes],
- [working_native_cc=no],[dnl])
+ [working_native_cc=no],[:])
CFLAGS_FOR_BUILD="$CFLAGS"
esac
fi
-if test x"$req_field" = x"auto"; then
- if test x"set_asm" = x"x86_64"; then
- set_field=64bit
- fi
- if test x"$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
- set_field=32bit
- fi
-else
- set_field=$req_field
- case $set_field in
- 64bit)
- if test x"$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 $set_scalar in
- 64bit)
- SECP_INT128_CHECK
- if test x"$has_int128" != x"yes"; then
- AC_MSG_ERROR([64bit scalar explicitly requested but __int128 support not available])
- fi
- ;;
- 32bit)
- ;;
- *)
- AC_MSG_ERROR([invalid scalar implementation selected])
- ;;
- esac
-fi
-
if test x"$req_bignum" = x"auto"; then
SECP_GMP_CHECK
if test x"$has_gmp" = x"yes"; then
;;
esac
-# select field implementation
-case $set_field in
-64bit)
- AC_DEFINE(USE_FIELD_5X52, 1, [Define this symbol to use the FIELD_5X52 implementation])
+# select wide multiplication implementation
+case $set_widemul in
+int128)
+ AC_DEFINE(USE_FORCE_WIDEMUL_INT128, 1, [Define this symbol to force the use of the (unsigned) __int128 based wide multiplication implementation])
;;
-32bit)
- AC_DEFINE(USE_FIELD_10X26, 1, [Define this symbol to use the FIELD_10X26 implementation])
+int64)
+ AC_DEFINE(USE_FORCE_WIDEMUL_INT64, 1, [Define this symbol to force the use of the (u)int64_t based wide multiplication implementation])
+ ;;
+auto)
;;
*)
- AC_MSG_ERROR([invalid field implementation])
+ AC_MSG_ERROR([invalid wide multiplication implementation])
;;
esac
;;
esac
-#select scalar implementation
-case $set_scalar in
-64bit)
- AC_DEFINE(USE_SCALAR_4X64, 1, [Define this symbol to use the 4x64 scalar implementation])
- ;;
-32bit)
- AC_DEFINE(USE_SCALAR_8X32, 1, [Define this symbol to use the 8x32 scalar implementation])
- ;;
-*)
- AC_MSG_ERROR([invalid scalar implementation])
- ;;
-esac
-
#set ecmult window size
if test x"$req_ecmult_window" = x"auto"; then
set_ecmult_window=15
if test x"$has_openssl_ec" = x"yes"; then
if test x"$enable_openssl_tests" != x"no"; then
AC_DEFINE(ENABLE_OPENSSL_TESTS, 1, [Define this symbol if OpenSSL EC functions are available])
- SECP_TEST_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS"
+ SECP_TEST_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS $CRYPTO_CPPFLAGS"
SECP_TEST_LIBS="$CRYPTO_LIBS"
case $host in
AC_DEFINE(ENABLE_MODULE_RECOVERY, 1, [Define this symbol to enable the ECDSA pubkey recovery module])
fi
-AC_C_BIGENDIAN()
+if test x"$enable_module_extrakeys" = x"yes"; then
+ AC_DEFINE(ENABLE_MODULE_EXTRAKEYS, 1, [Define this symbol to enable the extrakeys module])
+fi
if test x"$use_external_asm" = x"yes"; then
AC_DEFINE(USE_EXTERNAL_ASM, 1, [Define this symbol if an external (non-inline) assembly implementation is used])
AC_MSG_NOTICE([WARNING: experimental build])
AC_MSG_NOTICE([Experimental features do not have stable APIs or properties, and may not be safe for production use.])
AC_MSG_NOTICE([Building ECDH module: $enable_module_ecdh])
+ AC_MSG_NOTICE([Building extrakeys module: $enable_module_extrakeys])
AC_MSG_NOTICE([******])
else
if test x"$enable_module_ecdh" = x"yes"; then
AC_MSG_ERROR([ECDH module is experimental. Use --enable-experimental to allow.])
fi
+ if test x"$enable_module_extrakeys" = x"yes"; then
+ AC_MSG_ERROR([extrakeys module is experimental. Use --enable-experimental to allow.])
+ fi
if test x"$set_asm" = x"arm"; then
AC_MSG_ERROR([ARM assembly optimization is experimental. Use --enable-experimental to allow.])
fi
AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])
AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$set_precomp" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"])
+AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"])
AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$use_external_asm" = x"yes"])
AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"])
echo " with coverage = $enable_coverage"
echo " module ecdh = $enable_module_ecdh"
echo " module recovery = $enable_module_recovery"
+echo " module extrakeys = $enable_module_extrakeys"
echo
echo " asm = $set_asm"
echo " bignum = $set_bignum"
-echo " field = $set_field"
-echo " scalar = $set_scalar"
echo " ecmult window size = $set_ecmult_window"
echo " ecmult gen prec. bits = $set_ecmult_gen_precision"
+dnl Hide test-only options unless they're used.
+if test x"$set_widemul" != xauto; then
+echo " wide multiplication = $set_widemul"
+fi
echo
echo " valgrind = $enable_valgrind"
echo " CC = $CC"
projects / secp256k1.git / blobdiff