Add libxkbcommon to 3rd party libs

This library is required by the XCB platform plugin. As we depend on
very recent version of this library and it might not be available
in base repositories of distributions, users can use -qt-xkbcommom
switch to build Qt with the bundled version.

Change-Id: I0ed2a5cc2f1df98b0e7cc926cabfa69818674e08
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>

1 files changed, 136 insertions, 0 deletions

diff --git a/src/3rdparty/xkbcommon/src/utils.h b/src/3rdparty/xkbcommon/src/utils.h
new file mode 100644
index 0000000000..b4daaddaaa
--- /dev/null
+++ b/src/3rdparty/xkbcommon/src/utils.h
@@ -0,0 +1,136 @@
+/*
+ * Copyright © 2012 Ran Benita <ran234@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef UTILS_H
+#define UTILS_H 1
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <string.h>
+#include <strings.h>
+
+#include "darray.h"
+
+/*
+ * We sometimes malloc strings and then expose them as const char*'s. This
+ * macro is used when we free these strings in order to avoid -Wcast-qual
+ * errors.
+ */
+#define UNCONSTIFY(const_ptr)  ((void *) (uintptr_t) (const_ptr))
+
+static inline bool
+streq(const char *s1, const char *s2)
+{
+    return strcmp(s1, s2) == 0;
+}
+
+static inline bool
+streq_not_null(const char *s1, const char *s2)
+{
+    if (!s1 || !s2)
+        return false;
+    return streq(s1, s2);
+}
+
+static inline bool
+istreq(const char *s1, const char *s2)
+{
+    return strcasecmp(s1, s2) == 0;
+}
+
+static inline bool
+istreq_prefix(const char *s1, const char *s2)
+{
+    return strncasecmp(s1, s2, strlen(s1)) == 0;
+}
+
+static inline char *
+strdup_safe(const char *s)
+{
+    return s ? strdup(s) : NULL;
+}
+
+static inline bool
+isempty(const char *s)
+{
+    return s == NULL || s[0] == '\0';
+}
+
+static inline const char *
+strnull(const char *s)
+{
+    return s ? s : "(null)";
+}
+
+static inline void *
+memdup(const void *mem, size_t nmemb, size_t size)
+{
+    void *p = malloc(nmemb * size);
+    if (p)
+        memcpy(p, mem, nmemb * size);
+    return p;
+}
+
+#define ARRAY_SIZE(arr) ((sizeof(arr) / sizeof(*(arr))))
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MIN3(a, b, c) MIN(MIN((a), (b)), (c))
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define MAX3(a, b, c) MAX(MAX((a), (b)), (c))
+
+/* Compiler Attributes */
+
+#if defined(__GNUC__) && (__GNUC__ >= 4) && !defined(__CYGWIN__)
+# define XKB_EXPORT      __attribute__((visibility("default")))
+#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
+# define XKB_EXPORT      __global
+#else /* not gcc >= 4 and not Sun Studio >= 8 */
+# define XKB_EXPORT
+#endif
+
+#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 203)
+# define ATTR_PRINTF(x,y) __attribute__((__format__(__printf__, x, y)))
+#else /* not gcc >= 2.3 */
+# define ATTR_PRINTF(x,y)
+#endif
+
+#if (defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 205)) \
+    || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
+# define ATTR_NORETURN __attribute__((__noreturn__))
+#else
+# define ATTR_NORETURN
+#endif /* GNUC  */
+
+#if (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 296)
+#define ATTR_MALLOC  __attribute__((__malloc__))
+#else
+#define ATTR_MALLOC
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+# define ATTR_NULL_SENTINEL __attribute__((__sentinel__))
+#else
+# define ATTR_NULL_SENTINEL
+#endif /* GNUC >= 4 */
+
+#endif /* UTILS_H */