From 3e8ab07d25da1310db86cfca7e18eb0ad1987c8d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 10 Feb 2023 12:02:47 +0200
Subject: Make buildable on *BSD

---
 openssl/agent/pkcs11/agent.cxx | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

(limited to 'openssl')

diff --git a/openssl/agent/pkcs11/agent.cxx b/openssl/agent/pkcs11/agent.cxx
index 8d61208..273414e 100644
--- a/openssl/agent/pkcs11/agent.cxx
+++ b/openssl/agent/pkcs11/agent.cxx
@@ -6,6 +6,20 @@
 #include <sys/socket.h>
 
 #include <signal.h>  // kill(), sigaction(), sigemptyset(), SIG*
+
+// _NSIG is Linux-specific but *BSD appear to have NSIG/_NSIG.
+//
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#  include <sys/signal.h>
+#  ifndef _NSIG
+#    ifdef NSIG
+#      define _NSIG NSIG
+#    else
+#      error neither _NSIG nor NSIG defined
+#    endif
+#  endif
+#endif
+
 #include <unistd.h>  // fork(), getpid(), dup2(), setsid()
 #include <termios.h> // tcgetattr(), tcsetattr()
 
@@ -235,8 +249,6 @@ namespace openssl
       // future versions. Thus, we will provide our own implementation of the
       // function that is inspired by the openssh implementation.
       //
-      // Note: _NSIG is Linux-specic.
-      //
       static volatile sig_atomic_t received_signals[_NSIG];
 
       extern "C" void
-- 
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