Introduce the cairo-missing library

The cairo-missing library provides the functions which are needed in
order to correctly compile cairo (or its utilities) and which were not
found during configuration.

Fixes the build on MacOS X Lion, which failed because of collisons
between the cairo internal getline and strndup and those in libc:

cairo-analyse-trace.c:282: error: static declaration of ‘getline’ follows non-static declaration
/usr/include/stdio.h:449: error: previous declaration of ‘getline’ was here
cairo-analyse-trace.c:307: error: static declaration of ‘strndup’ follows non-static declaration
...

1 files changed, 1 insertions, 51 deletions

diff --git a/perf/cairo-perf-trace.c b/perf/cairo-perf-trace.c
index 25a98f34c..3319917f8 100644
--- a/perf/cairo-perf-trace.c
+++ b/perf/cairo-perf-trace.c
@@ -32,6 +32,7 @@
 
 #include "../cairo-version.h" /* for the real version */
 
+#include "cairo-missing.h"
 #include "cairo-perf.h"
 #include "cairo-stats.h"
 
@@ -373,57 +374,6 @@ usage (const char *argv0)
 	     argv0, argv0);
 }
 
-#ifndef __USE_GNU
-#define POORMANS_GETLINE_BUFFER_SIZE (65536)
-static ssize_t
-getline (char	**lineptr,
-	 size_t  *n,
-	 FILE	 *stream)
-{
-    if (!*lineptr)
-    {
-	*n = POORMANS_GETLINE_BUFFER_SIZE;
-	*lineptr = (char *) malloc (*n);
-    }
-
-    if (!fgets (*lineptr, *n, stream))
-	return -1;
-
-    if (!feof (stream) && !strchr (*lineptr, '\n'))
-    {
-	fprintf (stderr, "The poor man's implementation of getline in "
-			  __FILE__ " needs a bigger buffer. Perhaps it's "
-			 "time for a complete implementation of getline.\n");
-	exit (0);
-    }
-
-    return strlen (*lineptr);
-}
-#undef POORMANS_GETLINE_BUFFER_SIZE
-
-static char *
-strndup (const char *s,
-	 size_t      n)
-{
-    size_t len;
-    char *sdup;
-
-    if (!s)
-	return NULL;
-
-    len = strlen (s);
-    len = (n < len ? n : len);
-    sdup = (char *) malloc (len + 1);
-    if (sdup)
-    {
-	memcpy (sdup, s, len);
-	sdup[len] = '\0';
-    }
-
-    return sdup;
-}
-#endif /* ifndef __USE_GNU */
-
 static cairo_bool_t
 read_excludes (cairo_perf_t *perf,
 	       const char   *filename)