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path: root/SoftHSMv2/m4/acx_openssl_eddsa.m4
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AC_DEFUN([ACX_OPENSSL_EDDSA],[
	AC_MSG_CHECKING(for OpenSSL EDDSA 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_ed25519_support],[
		acx_cv_lib_openssl_ed25519_support=no
		AC_RUN_IFELSE([
			AC_LANG_SOURCE([[
				#include <openssl/evp.h>
				#include <openssl/objects.h>
				int main()
				{
					EVP_PKEY_CTX *ctx;

					ctx = EVP_PKEY_CTX_new_id(NID_ED25519, NULL);
					if (ctx == NULL)
						return 1;
					return 0;
				}
			]])
		],[
			AC_MSG_RESULT([Found ED25519])
			acx_cv_lib_openssl_ed25519_support=yes
		],[
			AC_MSG_RESULT([Cannot find ED25519])
			AC_MSG_ERROR([OpenSSL library has no EDDSA support])
		],[
			AC_MSG_WARN([Cannot test, ED25519])
			acx_cv_lib_openssl_ed25519_support=yes
		])
	])
	AC_CACHE_VAL([acx_cv_lib_openssl_ed448_support],[
		acx_cv_lib_openssl_ed448_support=no
		AC_RUN_IFELSE([
			AC_LANG_SOURCE([[
				#include <openssl/evp.h>
				#include <openssl/objects.h>
				int main()
				{
					EVP_PKEY_CTX *ctx;

					ctx = EVP_PKEY_CTX_new_id(NID_ED448, NULL);
					if (ctx == NULL)
						return 1;
					return 0;
				}
			]])
		],[
			AC_MSG_RESULT([Found ED448])
			acx_cv_lib_openssl_ed448_support=yes
		],[
			AC_MSG_RESULT([Cannot find ED448])
		],[
			AC_MSG_WARN([Cannot test, ED448])
			acx_cv_lib_openssl_ed448_support=yes
		])
	])
	AC_LANG_POP([C])

	CPPFLAGS=$tmp_CPPFLAGS
	LIBS=$tmp_LIBS
])