AIX port : added compatibility and modified lognormalizer for AIX.

compat/Makefile.am

@@ -1,6 +1,6 @@
 noinst_LTLIBRARIES = compat.la
 
-compat_la_SOURCES = strndup.c
+compat_la_SOURCES = strndup.c asprintf.c
 compat_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS)
 compat_la_LDFLAGS = -module -avoid-version
 compat_la_LIBADD = $(IMUDP_LIBS)

compat/asprintf.c

@@ -0,0 +1,53 @@
+/* compatibility file for systems without asprintf.
+ *
+ * Copyright 2015 Rainer Gerhards and Adiscon
+ *
+ * This file is part of rsyslog.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *       -or-
+ *       see COPYING.ASL20 in the source distribution
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "config.h"
+#ifndef HAVE_ASPRINTF
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+int asprintf(char **strp, const char *fmt, ...)
+{
+  va_list ap;
+  int len;
+
+  va_start(ap, fmt);
+  len = vsnprintf(NULL, 0, fmt, ap);
+  va_end(ap);
+
+  *strp = malloc(len+1);
+  if (!*strp) {
+    return -1;
+  }
+
+  va_start(ap, fmt);
+  vsnprintf(*strp, len+1, fmt, ap);
+  va_end(ap);
+
+  (*strp)[len] = 0;
+  return len;
+}
+#else
+/* XLC needs at least one method in source file even static to compile */
+#ifdef __xlc__
+static void dummy() {}
+#endif
+#endif /* #ifndef HAVE_ASPRINTF */

src/internal.h

@@ -63,7 +63,9 @@
 /* we need to turn off this warning, as it also comes up in C99 mode, which
  * we use.
  */
+#ifndef _AIX
 #pragma GCC diagnostic ignored "-Wdeclaration-after-statement"
+#endif
 
 /* support for simple error checking */
 

src/lognormalizer.c

@@ -35,7 +35,11 @@
 #include "config.h"
 #include <stdio.h>
 #include <string.h>
+#ifdef _AIX
+#include <unistd.h>
+#else
 #include <getopt.h>
+#endif
 #include <libestr.h>
 
 #include "liblognorm.h"