Differential D9382 Diff 28098 src/secp256k1/configure.ac

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src/secp256k1/configure.ac

AC_PREREQ([2.60])		AC_PREREQ([2.60])
AC_INIT([libsecp256k1],[0.1])		AC_INIT([libsecp256k1],[0.1])
AC_CONFIG_AUX_DIR([build-aux])		AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([build-aux/m4])		AC_CONFIG_MACRO_DIR([build-aux/m4])
AC_CANONICAL_HOST		AC_CANONICAL_HOST
AH_TOP([#ifndef LIBSECP256K1_CONFIG_H])		AH_TOP([#ifndef LIBSECP256K1_CONFIG_H])
AH_TOP([#define LIBSECP256K1_CONFIG_H])		AH_TOP([#define LIBSECP256K1_CONFIG_H])
AH_BOTTOM([#endif /LIBSECP256K1_CONFIG_H/])		AH_BOTTOM([#endif /LIBSECP256K1_CONFIG_H/])
AM_INIT_AUTOMAKE([foreign subdir-objects])		AM_INIT_AUTOMAKE([foreign subdir-objects])

# Set -g if CFLAGS are not already set, which matches the default autoconf		# 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		# 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).		# set -O2 here because we set it in any case (see further down).
: ${CFLAGS="-g"}		: ${CFLAGS="-g"}
LT_INIT		LT_INIT

dnl make the compilation flags quiet unless V=1 is used		# Make the compilation flags quiet unless V=1 is used.
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])		m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

PKG_PROG_PKG_CONFIG		PKG_PROG_PKG_CONFIG

AC_PATH_TOOL(AR, ar)		AC_PATH_TOOL(AR, ar)
AC_PATH_TOOL(RANLIB, ranlib)		AC_PATH_TOOL(RANLIB, ranlib)
AC_PATH_TOOL(STRIP, strip)		AC_PATH_TOOL(STRIP, strip)
AX_PROG_CC_FOR_BUILD

AM_PROG_CC_C_O		AM_PROG_CC_C_O

AC_PROG_CC_C89		AC_PROG_CC_C89
if test x"$ac_cv_prog_cc_c89" = x"no"; then		if test x"$ac_cv_prog_cc_c89" = x"no"; then
AC_MSG_ERROR([c89 compiler support required])		AC_MSG_ERROR([c89 compiler support required])
fi		fi
AM_PROG_AS		AM_PROG_AS

case $host_os in		case $host_os in
darwin)		darwin)
if test x$cross_compiling != xyes; then		if test x$cross_compiling != xyes; then
AC_PATH_PROG([BREW],brew,)		AC_PATH_PROG([BREW],brew,)
if test x$BREW != x; then		if test x$BREW != x; then
dnl These Homebrew packages may be keg-only, meaning that they won't be found		# 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		# in expected paths because they may conflict with system files. Ask
dnl Homebrew where each one is located, then adjust paths accordingly.		# Homebrew where each one is located, then adjust paths accordingly.

openssl_prefix=`$BREW --prefix openssl 2>/dev/null`		openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
gmp_prefix=`$BREW --prefix gmp 2>/dev/null`		gmp_prefix=`$BREW --prefix gmp 2>/dev/null`
		valgrind_prefix=`$BREW --prefix valgrind 2>/dev/null`
if test x$openssl_prefix != x; then		if test x$openssl_prefix != x; then
PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"		PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH		export PKG_CONFIG_PATH
CRYPTO_CPPFLAGS="-I$openssl_prefix/include"		CRYPTO_CPPFLAGS="-I$openssl_prefix/include"
fi		fi
if test x$gmp_prefix != x; then		if test x$gmp_prefix != x; then
GMP_CPPFLAGS="-I$gmp_prefix/include"		GMP_CPPFLAGS="-I$gmp_prefix/include"
GMP_LIBS="-L$gmp_prefix/lib"		GMP_LIBS="-L$gmp_prefix/lib"
fi		fi
		if test x$valgrind_prefix != x; then
		VALGRIND_CPPFLAGS="-I$valgrind_prefix/include"
		fi
else		else
AC_PATH_PROG([PORT],port,)		AC_PATH_PROG([PORT],port,)
dnl if homebrew isn't installed and macports is, add the macports default paths		# If homebrew isn't installed and macports is, add the macports default paths
dnl as a last resort.		# as a last resort.
if test x$PORT != x; then		if test x$PORT != x; then
CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"		CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"
LDFLAGS="$LDFLAGS -L/opt/local/lib"		LDFLAGS="$LDFLAGS -L/opt/local/lib"
fi		fi
fi		fi
fi		fi
;;		;;
esac		esac
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CFLAGS="-fvisibility=hidden $CFLAGS"		CFLAGS="-fvisibility=hidden $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])		AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],		AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],		[ AC_MSG_RESULT([yes]) ],
[ AC_MSG_RESULT([no])		[ AC_MSG_RESULT([no])
CFLAGS="$saved_CFLAGS"		CFLAGS="$saved_CFLAGS"
])		])

		###
		### Define config arguments
		###

AC_ARG_ENABLE(benchmark,		AC_ARG_ENABLE(benchmark,
AS_HELP_STRING([--enable-benchmark],[compile benchmark [default=yes]]),		AS_HELP_STRING([--enable-benchmark],[compile benchmark [default=yes]]),
[use_benchmark=$enableval],		[use_benchmark=$enableval],
[use_benchmark=yes])		[use_benchmark=yes])

AC_ARG_ENABLE(coverage,		AC_ARG_ENABLE(coverage,
AS_HELP_STRING([--enable-coverage],[enable compiler flags to support kcov coverage analysis [default=no]]),		AS_HELP_STRING([--enable-coverage],[enable compiler flags to support kcov coverage analysis [default=no]]),
[enable_coverage=$enableval],		[enable_coverage=$enableval],
▲ Show 20 Lines • Show All 54 Lines • ▼ Show 20 Lines	AC_ARG_ENABLE(module_schnorrsig,
[enable_module_schnorrsig=$enableval],		[enable_module_schnorrsig=$enableval],
[enable_module_schnorrsig=no])		[enable_module_schnorrsig=no])

AC_ARG_ENABLE(external_default_callbacks,		AC_ARG_ENABLE(external_default_callbacks,
AS_HELP_STRING([--enable-external-default-callbacks],[enable external default callback functions [default=no]]),		AS_HELP_STRING([--enable-external-default-callbacks],[enable external default callback functions [default=no]]),
[use_external_default_callbacks=$enableval],		[use_external_default_callbacks=$enableval],
[use_external_default_callbacks=no])		[use_external_default_callbacks=no])

dnl Test-only override of the (autodetected by the C code) "widemul" setting.		# 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).		# 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=$withval], [set_widemul=auto])		AC_ARG_WITH([test-override-wide-multiply], [] ,[set_widemul=$withval], [set_widemul=auto])

AC_ARG_ENABLE(jni,		AC_ARG_ENABLE(jni,
AS_HELP_STRING([--enable-jni],[enable libsecp256k1_jni [default=no]]),		AS_HELP_STRING([--enable-jni],[enable libsecp256k1_jni [default=no]]),
[use_jni=$enableval],		[use_jni=$enableval],
[use_jni=no])		[use_jni=no])

AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp\|no\|auto],		AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp\|no\|auto],
Show All 18 Lines
)],		)],
[req_ecmult_gen_precision=$withval], [req_ecmult_gen_precision=auto])		[req_ecmult_gen_precision=$withval], [req_ecmult_gen_precision=auto])

AC_ARG_WITH([valgrind], [AS_HELP_STRING([--with-valgrind=yes\|no\|auto],		AC_ARG_WITH([valgrind], [AS_HELP_STRING([--with-valgrind=yes\|no\|auto],
[Build with extra checks for running inside Valgrind [default=auto]]		[Build with extra checks for running inside Valgrind [default=auto]]
)],		)],
[req_valgrind=$withval], [req_valgrind=auto])		[req_valgrind=$withval], [req_valgrind=auto])

		###
		### Handle config options (except for modules)
		###

if test x"$req_valgrind" = x"no"; then		if test x"$req_valgrind" = x"no"; then
enable_valgrind=no		enable_valgrind=no
else		else
AC_CHECK_HEADER([valgrind/memcheck.h], [enable_valgrind=yes], [		SECP_VALGRIND_CHECK
		if test x"$has_valgrind" != x"yes"; then
if test x"$req_valgrind" = x"yes"; then		if test x"$req_valgrind" = x"yes"; then
AC_MSG_ERROR([Valgrind support explicitly requested but valgrind/memcheck.h header not available])		AC_MSG_ERROR([Valgrind support explicitly requested but valgrind/memcheck.h header not available])
fi		fi
enable_valgrind=no		enable_valgrind=no
], [])		else
		enable_valgrind=yes
		fi
fi		fi
AM_CONDITIONAL([VALGRIND_ENABLED],[test "$enable_valgrind" = "yes"])		AM_CONDITIONAL([VALGRIND_ENABLED],[test "$enable_valgrind" = "yes"])

if test x"$enable_coverage" = x"yes"; then		if test x"$enable_coverage" = x"yes"; then
AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code])		AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code])
CFLAGS="-O0 --coverage $CFLAGS"		CFLAGS="-O0 --coverage $CFLAGS"
LDFLAGS="--coverage $LDFLAGS"		LDFLAGS="--coverage $LDFLAGS"
else		else
CFLAGS="-O2 $CFLAGS"		CFLAGS="-O2 $CFLAGS"
fi		fi

if test x"$use_ecmult_static_precomputation" != x"no"; then
# Temporarily switch to an environment for the native compiler
save_cross_compiling=$cross_compiling
cross_compiling=no
SAVE_CC="$CC"
CC="$CC_FOR_BUILD"
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS_FOR_BUILD"
SAVE_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS_FOR_BUILD"
SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS_FOR_BUILD"

warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
saved_CFLAGS="$CFLAGS"
CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ],
[ AC_MSG_RESULT([no])
CFLAGS="$saved_CFLAGS"
])

AC_MSG_CHECKING([for working native compiler: ${CC_FOR_BUILD}])
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([], [])],
[working_native_cc=yes],
[working_native_cc=no],[:])

CFLAGS_FOR_BUILD="$CFLAGS"

# Restore the environment
cross_compiling=$save_cross_compiling
CC="$SAVE_CC"
CFLAGS="$SAVE_CFLAGS"
CPPFLAGS="$SAVE_CPPFLAGS"
LDFLAGS="$SAVE_LDFLAGS"

if test x"$working_native_cc" = x"no"; then
AC_MSG_RESULT([no])
set_precomp=no
m4_define([please_set_for_build], [Please set CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD.])
if test x"$use_ecmult_static_precomputation" = x"yes"; then
AC_MSG_ERROR([native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
else
AC_MSG_WARN([Disabling statically generated ecmult table because the native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
fi
else
AC_MSG_RESULT([yes])
set_precomp=yes
fi
else
set_precomp=no
fi

if test x"$req_asm" = x"auto"; then		if test x"$req_asm" = x"auto"; then
SECP_64BIT_ASM_CHECK		SECP_64BIT_ASM_CHECK
if test x"$has_64bit_asm" = x"yes"; then		if test x"$has_64bit_asm" = x"yes"; then
set_asm=x86_64		set_asm=x86_64
fi		fi
if test x"$set_asm" = x; then		if test x"$set_asm" = x; then
set_asm=no		set_asm=no
fi		fi
Show All 37 Lines	else
no)		no)
;;		;;
*)		*)
AC_MSG_ERROR([invalid bignum implementation selection])		AC_MSG_ERROR([invalid bignum implementation selection])
;;		;;
esac		esac
fi		fi

# select assembly optimization		# Select assembly optimization
use_external_asm=no		use_external_asm=no

case $set_asm in		case $set_asm in
x86_64)		x86_64)
AC_DEFINE(USE_ASM_X86_64, 1, [Define this symbol to enable x86_64 assembly optimizations])		AC_DEFINE(USE_ASM_X86_64, 1, [Define this symbol to enable x86_64 assembly optimizations])
;;		;;
arm)		arm)
use_external_asm=yes		use_external_asm=yes
;;		;;
no)		no)
;;		;;
*)		*)
AC_MSG_ERROR([invalid assembly optimizations])		AC_MSG_ERROR([invalid assembly optimizations])
;;		;;
esac		esac

# select wide multiplication implementation		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])
		fi


		# Select wide multiplication implementation
case $set_widemul in		case $set_widemul in
int128)		int128)
AC_DEFINE(USE_FORCE_WIDEMUL_INT128, 1, [Define this symbol to force the use of the (unsigned) __int128 based wide multiplication implementation])		AC_DEFINE(USE_FORCE_WIDEMUL_INT128, 1, [Define this symbol to force the use of the (unsigned) __int128 based wide multiplication implementation])
;;		;;
int64)		int64)
AC_DEFINE(USE_FORCE_WIDEMUL_INT64, 1, [Define this symbol to force the use of the (u)int64_t based wide multiplication implementation])		AC_DEFINE(USE_FORCE_WIDEMUL_INT64, 1, [Define this symbol to force the use of the (u)int64_t based wide multiplication implementation])
;;		;;
auto)		auto)
;;		;;
*)		*)
AC_MSG_ERROR([invalid wide multiplication implementation])		AC_MSG_ERROR([invalid wide multiplication implementation])
;;		;;
esac		esac

# select bignum implementation		# Select bignum implementation
case $set_bignum in		case $set_bignum in
gmp)		gmp)
AC_DEFINE(HAVE_LIBGMP, 1, [Define this symbol if libgmp is installed])		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_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_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_DEFINE(USE_SCALAR_INV_NUM, 1, [Define this symbol to use the num-based scalar inverse implementation])
;;		;;
no)		no)
AC_DEFINE(USE_NUM_NONE, 1, [Define this symbol to use no num implementation])		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_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_DEFINE(USE_SCALAR_INV_BUILTIN, 1, [Define this symbol to use the native scalar inverse implementation])
;;		;;
*)		*)
AC_MSG_ERROR([invalid bignum implementation])		AC_MSG_ERROR([invalid bignum implementation])
;;		;;
esac		esac

#set ecmult window size		# Set ecmult window size
if test x"$req_ecmult_window" = x"auto"; then		if test x"$req_ecmult_window" = x"auto"; then
set_ecmult_window=15		set_ecmult_window=15
else		else
set_ecmult_window=$req_ecmult_window		set_ecmult_window=$req_ecmult_window
fi		fi

error_window_size=['window size for ecmult precomputation not an integer in range [2..24] or "auto"']		error_window_size=['window size for ecmult precomputation not an integer in range [2..24] or "auto"']
case $set_ecmult_window in		case $set_ecmult_window in
''\|[[!0-9]])		''\|[[!0-9]])
# no valid integer		# no valid integer
AC_MSG_ERROR($error_window_size)		AC_MSG_ERROR($error_window_size)
;;		;;
*)		*)
if test "$set_ecmult_window" -lt 2 -o "$set_ecmult_window" -gt 24 ; then		if test "$set_ecmult_window" -lt 2 -o "$set_ecmult_window" -gt 24 ; then
# not in range		# not in range
AC_MSG_ERROR($error_window_size)		AC_MSG_ERROR($error_window_size)
fi		fi
AC_DEFINE_UNQUOTED(ECMULT_WINDOW_SIZE, $set_ecmult_window, [Set window size for ecmult precomputation])		AC_DEFINE_UNQUOTED(ECMULT_WINDOW_SIZE, $set_ecmult_window, [Set window size for ecmult precomputation])
;;		;;
esac		esac

#set ecmult gen precision		# Set ecmult gen precision
if test x"$req_ecmult_gen_precision" = x"auto"; then		if test x"$req_ecmult_gen_precision" = x"auto"; then
set_ecmult_gen_precision=4		set_ecmult_gen_precision=4
else		else
set_ecmult_gen_precision=$req_ecmult_gen_precision		set_ecmult_gen_precision=$req_ecmult_gen_precision
fi		fi

case $set_ecmult_gen_precision in		case $set_ecmult_gen_precision in
2\|4\|8)		2\|4\|8)
▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Lines	if test x"$use_jni" != x"no"; then
fi		fi
fi		fi

if test x"$set_bignum" = x"gmp"; then		if test x"$set_bignum" = x"gmp"; then
SECP_LIBS="$SECP_LIBS $GMP_LIBS"		SECP_LIBS="$SECP_LIBS $GMP_LIBS"
SECP_INCLUDES="$SECP_INCLUDES $GMP_CPPFLAGS"		SECP_INCLUDES="$SECP_INCLUDES $GMP_CPPFLAGS"
fi		fi

		if test x"$enable_valgrind" = x"yes"; then
		SECP_INCLUDES="$SECP_INCLUDES $VALGRIND_CPPFLAGS"
		fi

		# Handle static precomputation (after everything which modifies CFLAGS and friends)
		if test x"$use_ecmult_static_precomputation" != x"no"; then
		if test x"$cross_compiling" = x"no"; then
		set_precomp=yes
		if test x"${CC_FOR_BUILD+x}${CFLAGS_FOR_BUILD+x}${CPPFLAGS_FOR_BUILD+x}${LDFLAGS_FOR_BUILD+x}" != x; then
		AC_MSG_WARN([CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD is set but ignored because we are not cross-compiling.])
		fi
		# If we're not cross-compiling, simply use the same compiler for building the static precompation code.
		CC_FOR_BUILD="$CC"
		CFLAGS_FOR_BUILD="$CFLAGS"
		CPPFLAGS_FOR_BUILD="$CPPFLAGS"
		LDFLAGS_FOR_BUILD="$LDFLAGS"
		else
		AX_PROG_CC_FOR_BUILD

		# Temporarily switch to an environment for the native compiler
		save_cross_compiling=$cross_compiling
		cross_compiling=no
		SAVE_CC="$CC"
		CC="$CC_FOR_BUILD"
		SAVE_CFLAGS="$CFLAGS"
		CFLAGS="$CFLAGS_FOR_BUILD"
		SAVE_CPPFLAGS="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS_FOR_BUILD"
		SAVE_LDFLAGS="$LDFLAGS"
		LDFLAGS="$LDFLAGS_FOR_BUILD"

		warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
		saved_CFLAGS="$CFLAGS"
		CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
		AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
		AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
		[ AC_MSG_RESULT([yes]) ],
		[ AC_MSG_RESULT([no])
		CFLAGS="$saved_CFLAGS"
		])

		AC_MSG_CHECKING([for working native compiler: ${CC_FOR_BUILD}])
		AC_RUN_IFELSE(
		[AC_LANG_PROGRAM([], [])],
		[working_native_cc=yes],
		[working_native_cc=no],[:])

		CFLAGS_FOR_BUILD="$CFLAGS"

		# Restore the environment
		cross_compiling=$save_cross_compiling
		CC="$SAVE_CC"
		CFLAGS="$SAVE_CFLAGS"
		CPPFLAGS="$SAVE_CPPFLAGS"
		LDFLAGS="$SAVE_LDFLAGS"

		if test x"$working_native_cc" = x"no"; then
		AC_MSG_RESULT([no])
		set_precomp=no
		m4_define([please_set_for_build], [Please set CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD.])
		if test x"$use_ecmult_static_precomputation" = x"yes"; then
		AC_MSG_ERROR([native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
		else
		AC_MSG_WARN([Disabling statically generated ecmult table because the native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
		fi
		else
		AC_MSG_RESULT([yes])
		set_precomp=yes
		fi
		fi

		AC_SUBST(CC_FOR_BUILD)
		AC_SUBST(CFLAGS_FOR_BUILD)
		AC_SUBST(CPPFLAGS_FOR_BUILD)
		AC_SUBST(LDFLAGS_FOR_BUILD)
		else
		set_precomp=no
		fi

if test x"$set_precomp" = x"yes"; then		if test x"$set_precomp" = x"yes"; then
AC_DEFINE(USE_ECMULT_STATIC_PRECOMPUTATION, 1, [Define this symbol to use a statically generated ecmult table])		AC_DEFINE(USE_ECMULT_STATIC_PRECOMPUTATION, 1, [Define this symbol to use a statically generated ecmult table])
fi		fi

		###
		### Handle module options
		###

if test x"$enable_module_ecdh" = x"yes"; then		if test x"$enable_module_ecdh" = x"yes"; then
AC_DEFINE(ENABLE_MODULE_ECDH, 1, [Define this symbol to enable the ECDH module])		AC_DEFINE(ENABLE_MODULE_ECDH, 1, [Define this symbol to enable the ECDH module])
fi		fi

if test x"$enable_module_multiset" = x"yes"; then		if test x"$enable_module_multiset" = x"yes"; then
AC_DEFINE(ENABLE_MODULE_MULTISET, 1, [Define this symbol to enable the multiset module])		AC_DEFINE(ENABLE_MODULE_MULTISET, 1, [Define this symbol to enable the multiset module])
fi		fi

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fi		fi

# Test if extrakeys is set after the schnorrsig module to allow the schnorrsig		# Test if extrakeys is set after the schnorrsig module to allow the schnorrsig
# module to set enable_module_extrakeys=yes		# module to set enable_module_extrakeys=yes
if test x"$enable_module_extrakeys" = x"yes"; then		if test x"$enable_module_extrakeys" = x"yes"; then
AC_DEFINE(ENABLE_MODULE_EXTRAKEYS, 1, [Define this symbol to enable the extrakeys module])		AC_DEFINE(ENABLE_MODULE_EXTRAKEYS, 1, [Define this symbol to enable the extrakeys module])
fi		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])
fi

if test x"$use_external_default_callbacks" = x"yes"; then		if test x"$use_external_default_callbacks" = x"yes"; then
AC_DEFINE(USE_EXTERNAL_DEFAULT_CALLBACKS, 1, [Define this symbol if an external implementation of the default callbacks is used])		AC_DEFINE(USE_EXTERNAL_DEFAULT_CALLBACKS, 1, [Define this symbol if an external implementation of the default callbacks is used])
fi		fi

		###
		### Check for --enable-experimental if necessary
		###

if test x"$enable_experimental" = x"yes"; then		if test x"$enable_experimental" = x"yes"; then
AC_MSG_NOTICE([******])		AC_MSG_NOTICE([******])
AC_MSG_NOTICE([WARNING: experimental build])		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([Experimental features do not have stable APIs or properties, and may not be safe for production use.])
AC_MSG_NOTICE([Building extrakeys module: $enable_module_extrakeys])		AC_MSG_NOTICE([Building extrakeys module: $enable_module_extrakeys])
AC_MSG_NOTICE([Building schnorrsig module: $enable_module_schnorrsig])		AC_MSG_NOTICE([Building schnorrsig module: $enable_module_schnorrsig])
AC_MSG_NOTICE([******])		AC_MSG_NOTICE([******])
else		else
if test x"$enable_module_multiset" = x"yes"; then		if test x"$enable_module_multiset" = x"yes"; then
AC_MSG_ERROR([Multiset module is experimental. Use --enable-experimental to allow.])		AC_MSG_ERROR([Multiset module is experimental. Use --enable-experimental to allow.])
fi		fi
if test x"$enable_module_extrakeys" = x"yes"; then		if test x"$enable_module_extrakeys" = x"yes"; then
AC_MSG_ERROR([extrakeys module is experimental. Use --enable-experimental to allow.])		AC_MSG_ERROR([extrakeys module is experimental. Use --enable-experimental to allow.])
fi		fi
if test x"$enable_module_schnorrsig" = x"yes"; then		if test x"$enable_module_schnorrsig" = x"yes"; then
AC_MSG_ERROR([schnorrsig module is experimental. Use --enable-experimental to allow.])		AC_MSG_ERROR([schnorrsig module is experimental. Use --enable-experimental to allow.])
fi		fi
if test x"$set_asm" = x"arm"; then		if test x"$set_asm" = x"arm"; then
AC_MSG_ERROR([ARM assembly optimization is experimental. Use --enable-experimental to allow.])		AC_MSG_ERROR([ARM assembly optimization is experimental. Use --enable-experimental to allow.])
fi		fi
fi		fi

		###
		### Generate output
		###

AC_CONFIG_HEADERS([src/libsecp256k1-config.h])		AC_CONFIG_HEADERS([src/libsecp256k1-config.h])
AC_CONFIG_FILES([Makefile libsecp256k1.pc])		AC_CONFIG_FILES([Makefile libsecp256k1.pc])
AC_SUBST(JNI_INCLUDES)		AC_SUBST(JNI_INCLUDES)
AC_SUBST(SECP_INCLUDES)		AC_SUBST(SECP_INCLUDES)
AC_SUBST(SECP_LIBS)		AC_SUBST(SECP_LIBS)
AC_SUBST(SECP_TEST_LIBS)		AC_SUBST(SECP_TEST_LIBS)
AC_SUBST(SECP_TEST_INCLUDES)		AC_SUBST(SECP_TEST_INCLUDES)
AM_CONDITIONAL([ENABLE_COVERAGE], [test x"$enable_coverage" = x"yes"])		AM_CONDITIONAL([ENABLE_COVERAGE], [test x"$enable_coverage" = x"yes"])
AM_CONDITIONAL([USE_TESTS], [test x"$use_tests" != x"no"])		AM_CONDITIONAL([USE_TESTS], [test x"$use_tests" != x"no"])
AM_CONDITIONAL([USE_EXHAUSTIVE_TESTS], [test x"$use_exhaustive_tests" != x"no"])		AM_CONDITIONAL([USE_EXHAUSTIVE_TESTS], [test x"$use_exhaustive_tests" != x"no"])
AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])		AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])
AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$set_precomp" = x"yes"])		AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$set_precomp" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"])		AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"])		AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_MULTISET], [test x"$enable_module_multiset" = x"yes"])		AM_CONDITIONAL([ENABLE_MODULE_MULTISET], [test x"$enable_module_multiset" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_SCHNORR], [test x"$enable_module_schnorr" = x"yes"])		AM_CONDITIONAL([ENABLE_MODULE_SCHNORR], [test x"$enable_module_schnorr" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"])		AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"])
AM_CONDITIONAL([ENABLE_MODULE_SCHNORRSIG], [test x"$enable_module_schnorrsig" = x"yes"])		AM_CONDITIONAL([ENABLE_MODULE_SCHNORRSIG], [test x"$enable_module_schnorrsig" = x"yes"])
AM_CONDITIONAL([USE_JNI], [test x"$use_jni" = x"yes"])		AM_CONDITIONAL([USE_JNI], [test x"$use_jni" = x"yes"])
AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$use_external_asm" = x"yes"])		AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$use_external_asm" = x"yes"])
AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"])		AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"])

dnl make sure nothing new is exported so that we don't break the cache		# Make sure nothing new is exported so that we don't break the cache.
PKGCONFIG_PATH_TEMP="$PKG_CONFIG_PATH"		PKGCONFIG_PATH_TEMP="$PKG_CONFIG_PATH"
unset PKG_CONFIG_PATH		unset PKG_CONFIG_PATH
PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"		PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"

AC_OUTPUT		AC_OUTPUT

echo		echo
echo "Build Options:"		echo "Build Options:"
Show All 10 Lines
echo " module schnorr = $enable_module_schnorr"		echo " module schnorr = $enable_module_schnorr"
echo " module extrakeys = $enable_module_extrakeys"		echo " module extrakeys = $enable_module_extrakeys"
echo " module schnorrsig = $enable_module_schnorrsig"		echo " module schnorrsig = $enable_module_schnorrsig"
echo		echo
echo " asm = $set_asm"		echo " asm = $set_asm"
echo " bignum = $set_bignum"		echo " bignum = $set_bignum"
echo " ecmult window size = $set_ecmult_window"		echo " ecmult window size = $set_ecmult_window"
echo " ecmult gen prec. bits = $set_ecmult_gen_precision"		echo " ecmult gen prec. bits = $set_ecmult_gen_precision"
dnl Hide test-only options unless they're used.		# Hide test-only options unless they're used.
if test x"$set_widemul" != xauto; then		if test x"$set_widemul" != xauto; then
echo " wide multiplication = $set_widemul"		echo " wide multiplication = $set_widemul"
fi		fi
echo		echo
echo " valgrind = $enable_valgrind"		echo " valgrind = $enable_valgrind"
echo " CC = $CC"		echo " CC = $CC"
echo " CFLAGS = $CFLAGS"		echo " CFLAGS = $CFLAGS"
echo " CPPFLAGS = $CPPFLAGS"		echo " CPPFLAGS = $CPPFLAGS"
echo " LDFLAGS = $LDFLAGS"		echo " LDFLAGS = $LDFLAGS"
echo		echo
		if test x"$set_precomp" = x"yes"; then
		echo " CC_FOR_BUILD = $CC_FOR_BUILD"
		echo " CFLAGS_FOR_BUILD = $CFLAGS_FOR_BUILD"
		echo " CPPFLAGS_FOR_BUILD = $CPPFLAGS_FOR_BUILD"
		echo " LDFLAGS_FOR_BUILD = $LDFLAGS_FOR_BUILD"
		fi