curl: fix libressl-2.7

Import OpenBSD patches.

srcpkgs/curl/patches/patch-lib_vtls_openssl_c.patch

@@ -0,0 +1,31 @@
+$OpenBSD: patch-lib_vtls_openssl_c,v 1.3 2018/02/15 22:13:20 sthen Exp $
+
+Index: lib/vtls/openssl.c
+--- lib/vtls/openssl.c.orig
++++ lib/vtls/openssl.c
+@@ -117,12 +117,7 @@
+ #define X509_get0_notBefore(x) X509_get_notBefore(x)
+ #define X509_get0_notAfter(x) X509_get_notAfter(x)
+ #define CONST_EXTS /* nope */
+-#ifdef LIBRESSL_VERSION_NUMBER
+-static unsigned long OpenSSL_version_num(void)
+-{
+-  return LIBRESSL_VERSION_NUMBER;
+-}
+-#else
++#ifndef LIBRESSL_VERSION_NUMBER
+ #define OpenSSL_version_num() SSLeay()
+ #endif
+ #endif
+@@ -3527,7 +3522,11 @@ static size_t Curl_ossl_version(char *buffer, size_t s
+   unsigned long ssleay_value;
+   sub[2]='\0';
+   sub[1]='\0';
++#ifdef LIBRESSL_VERSION_NUMBER
++  ssleay_value = LIBRESSL_VERSION_NUMBER;
++#else
+   ssleay_value = OpenSSL_version_num();
++#endif
+   if(ssleay_value < 0x906000) {
+     ssleay_value = SSLEAY_VERSION_NUMBER;
+     sub[0]='\0';

srcpkgs/curl/template

@@ -1,7 +1,7 @@
 # Template build file for 'curl'.
 pkgname=curl
 version=7.59.0
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="ac_cv_sizeof_off_t=8
  --enable-threaded-resolver --enable-ipv6 $(vopt_with rtmp)