Add common header

We're going to use this header to provide shared macros. Right now, we
can use it to replace the:

    #ifdef __cplusplus
    extern "C" {
    #endif

    …

    #ifdef __cplusplus
    }
    #endif

Stanzas for every installed header, with easier to read macros in the
same spirit of Cairo and GLib.

1 files changed, 40 insertions, 0 deletions

diff --git a/include/epoxy/common.h b/include/epoxy/common.h
new file mode 100644
index 0000000..04ff63f
--- /dev/null
+++ b/include/epoxy/common.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2017  Emmanuele Bassi 
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/** @file common.h
+ *
+ * A common header file, used to define macros and shared symbols.
+ */
+
+#ifndef EPOXY_COMMON_H
+#define EPOXY_COMMON_H
+
+#ifdef __cplusplus
+# define EPOXY_BEGIN_DECLS      extern "C" {
+# define EPOXY_END_DECLS        }
+#else
+# define EPOXY_BEGIN_DECLS
+# define EPOXY_END_DECLS
+#endif
+
+#endif /* EPOXY_COMMON_H */