1 files changed, 54 insertions, 0 deletions
diff --git a/src/libmowgli/platform/constructor.h b/src/libmowgli/platform/constructor.h
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+++ b/src/libmowgli/platform/constructor.h
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+/*
+ * constructor.h
+ * Code for setting up automatic initializer functions portably.
+ *
+ * Copyright (c) 2012 William Pitcock <nenolod@dereferenced.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __MOWGLI_PLATFORM_CONSTRUCTOR_H__
+#define __MOWGLI_PLATFORM_CONSTRUCTOR_H__
+
+#ifdef _MSC_VER
+
+/*
+ * Automatic constructors are not yet officially supported in MSVC, however,
+ * there is a similar feature where functions in the ".CRT$XCU" section are
+ * evaluated prior to DllMain(), main() and friends.
+ *
+ * See http://blogs.msdn.com/b/vcblog/archive/2006/10/20/crt-initialization.aspx
+ * for more information.
+ */
+#define MOWGLI_BOOTSTRAP_FUNC(func) \
+	static void __cdecl func(void); \
+	__declspec(allocate(".CRT$XCU")) void (__cdecl *func##_)(void) = func; \
+	static void __cdecl func(void)
+
+#elif defined(__GNUC__) || defined(__SUNPRO_C)
+
+#define MOWGLI_BOOTSTRAP_FUNC(func) \
+	static void func(void) __attribute__((constructor)); \
+	static void func(void)
+
+#else
+
+#error MOWGLI_BOOTSTRAP_FUNC not implemented for your platform :(
+
+#endif
+
+#endif