diff options
Diffstat (limited to 'src/secp256k1/build-aux/m4/bitcoin_secp.m4')
-rw-r--r-- | src/secp256k1/build-aux/m4/bitcoin_secp.m4 | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/secp256k1/build-aux/m4/bitcoin_secp.m4 b/src/secp256k1/build-aux/m4/bitcoin_secp.m4 new file mode 100644 index 0000000000..4ca28f99cf --- /dev/null +++ b/src/secp256k1/build-aux/m4/bitcoin_secp.m4 @@ -0,0 +1,96 @@ +dnl libsecp25k1 helper checks +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 +if test x"$has_int128" != x"yes" && test x"$set_scalar" = x"64bit"; then + AC_MSG_ERROR([$set_scalar scalar support explicitly requested but is not compatible with this host]) +fi +]) + +dnl +AC_DEFUN([SECP_64BIT_ASM_CHECK],[ +if test x"$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 $YASM_BINFMT format]) + has_64bit_asm=no + fi +fi +]) + +dnl +AC_DEFUN([SECP_OPENSSL_CHECK],[ +if test x"$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_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + #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([$has_openssl_ec]) +fi +]) + +dnl +AC_DEFUN([SECP_GMP_CHECK],[ +if test x"$has_gmp" != x"yes"; then + CPPFLAGS_TEMP="$CPPFLAGS" + CPPFLAGS="$GMP_CPPFLAGS $CPPFLAGS" + LIBS_TEMP="$LIBS" + LIBS="$GMP_LIBS $LIBS" + AC_CHECK_HEADER(gmp.h,[AC_CHECK_LIB(gmp, __gmpz_init,[has_gmp=yes; GMP_LIBS="$GMP_LIBS -lgmp"; AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])])]) + CPPFLAGS="$CPPFLAGS_TEMP" + LIBS="$LIBS_TEMP" +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 +]) + |