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https://bugs.gentoo.org/797364
https://github.com/vstakhov/libucl/commit/c7141327180cff73904b28f04cfdb604fc7d0773
From c7141327180cff73904b28f04cfdb604fc7d0773 Mon Sep 17 00:00:00 2001
From: Alexandru Guzinschi <alex@gentle.ro>
Date: Fri, 11 Sep 2020 11:41:54 +0300
Subject: [PATCH] fix: Changed OpenSSL check inside configure.am
In OpenSSL 1.1.0 the `EVP_MD_CTX_create()` and `EVP_MD_CTX_destroy()`
functions were renamed to `EVP_MD_CTX_new()` and `EVP_MD_CTX_free()`.
Because a check for `EVP_MD_CTX_create()` was in place inside
configure.am, building with newer OpenSSL versions could not be done.
Checking for `EVP_MD_CTX_create` function from configure.am was
replaced with a check for `CRYPTO_new_ex_data()` function.
Because a [compatibility layer][1] was introduced in OpenSSL 1.1.0,
no code changes are necessary.
Fixes: #203
[1]: https://github.com/openssl/openssl/blob/OpenSSL_1_1_0/include/openssl/evp.h#L500-L502
--- a/configure.ac
+++ b/configure.ac
@@ -73,11 +73,11 @@ AC_ARG_ENABLE([utils],
AM_CONDITIONAL([UTILS], [test x$utils = xtrue])
AS_IF([test "x$enable_signatures" = "xyes"], [
- AC_SEARCH_LIBS([EVP_MD_CTX_create], [crypto], [
+ AC_SEARCH_LIBS([CRYPTO_new_ex_data], [crypto], [
AC_DEFINE(HAVE_OPENSSL, 1, [Define to 1 if you have the 'crypto' library (-lcrypto).])
LIBCRYPTO_LIB="-lcrypto"
LIBS_EXTRA="${LIBS_EXTRA} -lcrypto"
- ], [AC_MSG_ERROR([unable to find the EVP_MD_CTX_create() function])])
+ ], [AC_MSG_ERROR([unable to find the CRYPTO_new_ex_data() function])])
])
AC_SUBST(LIBCRYPTO_LIB)
AC_PATH_PROG(PANDOC, pandoc, [/non/existent])
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