Add compat headers for haiku builds

include/haiku-compat/execinfo.h

@@ -0,0 +1,36 @@
+/*
+ * DISTRHO Cardinal Plugin
+ * Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of
+ * the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For a full copy of the GNU General Public License see the LICENSE file.
+ */
+
+#pragma once
+
+#define pthread_setname_np(...)
+
+static int pthread_getcpuclockid(pthread_t, clockid_t* const clock_id)
+{
+    *clock_id = CLOCK_REALTIME;
+    return 0;
+}
+
+static int backtrace(void**, int)
+{
+    return 0;
+}
+
+char** backtrace_symbols(void* const*, int)
+{
+    return nullptr;
+}

include/haiku-compat/ghc/filesystem.hpp

@@ -0,0 +1,22 @@
+/*
+ * DISTRHO Cardinal Plugin
+ * Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of
+ * the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For a full copy of the GNU General Public License see the LICENSE file.
+ */
+
+#pragma once
+
+#define GHC_OS_DETECTED
+#define GHC_OS_LINUX
+#include_next <ghc/filesystem.hpp>