Clean up cross-platform compatibility.

- Move compatibility macros to a new header file.
- Sort system include files in alphabetical order.
- Clean up signal handling (thanks to Adam).

1 files changed, 93 insertions, 0 deletions

diff --git a/include/compat.h b/include/compat.h
new file mode 100644
index 000000000..d3d554b18
--- /dev/null
+++ b/include/compat.h
@@ -0,0 +1,93 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2013 Peter Powell <petpow@saberuk.com>
+ *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ *   Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *
+ * This file is part of InspIRCd.  InspIRCd 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, version 2.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+
+/**
+ * Some implementations of the C++11 standard library are incomplete so we use
+ * the implementation of the same types from C++ Technical Report 1 instead.
+ */
+#if defined _LIBCPP_VERSION || defined _WIN32
+# define TR1NS std
+# include <unordered_map>
+#else
+# define TR1NS std::tr1
+# include <tr1/unordered_map>
+#endif
+
+/**
+ * This macro enables the compile-time checking of printf format strings. This
+ * makes the compiler show a warning if the format of a printf arguments are
+ * incorrect.
+ */
+#if defined __clang__ || defined __GNUC__
+# define CUSTOM_PRINTF(stringpos, firstpos) __attribute__((format(printf, stringpos, firstpos)))
+#else
+# pragma message ("Warning! CUSTOM_PRINTF() does not work on your compiler!")
+# define CUSTOM_PRINTF(stringpos, firstpos)
+#endif
+
+/**
+ * These macros enable the use of the C++11 override control keywords in
+ * compilers which support them.
+ */
+#if defined __clang__
+# if __has_feature(cxx_override_control)
+#  define HAS_CXX11_FINAL_OVERRIDE
+# endif
+#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)
+# define HAS_CXX11_FINAL_OVERRIDE
+#elif _MSC_VER >= 1700
+# define HAS_CXX11_FINAL_OVERRIDE
+#endif
+
+#if defined HAS_CXX11_FINAL_OVERRIDE
+# define CXX11_FINAL final
+# define CXX11_OVERRIDE override
+#else
+# define CXX11_FINAL
+# define CXX11_OVERRIDE
+#endif
+
+/**
+ * This macro allows methods to be marked as deprecated. To use this, wrap the
+ * method declaration in the header file with the macro.
+ */
+#if defined __clang__ || defined __GNUC__
+# define DEPRECATED_METHOD(function) function __attribute__((deprecated))
+#elif defined _MSC_VER
+# define DEPRECATED_METHOD(function) __declspec(deprecated) function
+#else
+# pragma message ("Warning! DEPRECATED_METHOD() does not work on your compiler!")
+# define DEPRECATED_METHOD(function) function
+#endif
+
+/**
+ * Windows is very different to UNIX so we have to wrap certain features in
+ * order to build on Windows correctly.
+ */
+#if defined _WIN32
+# include "inspircd_win32wrapper.h"
+#else
+# include <unistd.h>
+# define DllExport
+# define CoreExport
+#endif