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AC_DEFUN([ACX_OPENSSL_ECC],[
AC_MSG_CHECKING(for OpenSSL ECC support)
tmp_CPPFLAGS=$CPPFLAGS
tmp_LIBS=$LIBS
CPPFLAGS="$CPPFLAGS $CRYPTO_INCLUDES"
LIBS="$CRYPTO_LIBS $LIBS"
AC_LANG_PUSH([C])
AC_CACHE_VAL([acx_cv_lib_openssl_ecc_support],[
acx_cv_lib_openssl_ecc_support=no
AC_RUN_IFELSE([
AC_LANG_SOURCE([[
#include <openssl/ecdsa.h>
#include <openssl/objects.h>
int main()
{
EC_KEY *ec256, *ec384, *ec521;
ec256 = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
ec384 = EC_KEY_new_by_curve_name(NID_secp384r1);
ec521 = EC_KEY_new_by_curve_name(NID_secp521r1);
if (ec256 == NULL || ec384 == NULL || ec521 == NULL)
return 1;
return 0;
}
]])
],[
AC_MSG_RESULT([Found P256, P384, and P521])
acx_cv_lib_openssl_ecc_support=yes
],[
AC_MSG_RESULT([Cannot find P256, P384, or P521])
AC_MSG_ERROR([OpenSSL library has no ECC support])
],[
AC_MSG_WARN([Cannot test, assuming P256, P384, and P521])
acx_cv_lib_openssl_ecc_support=yes
])
])
AC_LANG_POP([C])
CPPFLAGS=$tmp_CPPFLAGS
LIBS=$tmp_LIBS
])
|
