Start untangling header inclusion in a way that does not affect

build times - tested, there is no measureable difference before and
after this commit.

In this change:

use asterisk/compat.h to include a small set of system headers:
inttypes.h, unistd.h, stddef.h, stddint.h, sys/types.h, stdarg.h,
stdlib.h, alloca.h, stdio.h

Where available, the inclusion is conditional on HAVE_FOO_H as determined
by autoconf.

Normally, source files should not include any of the above system headers,
and instead use either "asterisk.h" or "asterisk/compat.h" which does it
better. 

For the time being I have left alone second-level directories
(main/db1-ast, etc.).



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89333 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_base64.c

@@ -26,11 +26,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_blacklist.c

@@ -30,10 +30,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
 #include "asterisk/lock.h"
 #include "asterisk/file.h"
 #include "asterisk/logger.h"

funcs/func_callerid.c

@@ -25,11 +25,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_cdr.c

@@ -29,11 +29,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_channel.c

@@ -27,11 +27,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_curl.c

@@ -38,9 +38,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include <curl/curl.h>
 
 #include "asterisk/lock.h"

funcs/func_cut.c

@@ -28,11 +28,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
 #include "asterisk/file.h"
 #include "asterisk/logger.h"
 #include "asterisk/options.h"

funcs/func_db.c

@@ -31,10 +31,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
 #include <regex.h>
 
 #include "asterisk/module.h"

funcs/func_devstate.c

@@ -32,8 +32,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_dialgroup.c

@@ -29,10 +29,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
 #include <sys/stat.h>
 
 #include "asterisk/module.h"

funcs/func_enum.c

@@ -37,9 +37,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_env.c

@@ -25,10 +25,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
 #include <sys/stat.h>
 
 #include "asterisk/module.h"

funcs/func_extstate.c

@@ -30,8 +30,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_global.c

@@ -29,10 +29,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
 #include <sys/stat.h>
 
 #include "asterisk/module.h"

funcs/func_groupcount.c

@@ -25,11 +25,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_iconv.c

@@ -31,10 +31,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
 #include <ctype.h>
 #include <errno.h>
 #include <iconv.h>

funcs/func_lock.c

@@ -30,10 +30,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
 #include "asterisk/lock.h"
 #include "asterisk/file.h"
 #include "asterisk/logger.h"

funcs/func_logic.c

@@ -28,11 +28,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_math.c

@@ -30,11 +30,7 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
 #include <math.h>
-#include <sys/types.h>
 
 #include "asterisk/module.h"
 #include "asterisk/channel.h"

funcs/func_md5.c

@@ -30,11 +30,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_module.c

@@ -25,10 +25,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
 #include <sys/stat.h>
 
 #include "asterisk/module.h"

funcs/func_odbc.c

@@ -36,11 +36,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
 #include <errno.h>
 
 #include "asterisk/module.h"

funcs/func_rand.c

@@ -28,11 +28,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_realtime.c

@@ -28,12 +28,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/file.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_sha1.c

@@ -28,11 +28,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_shell.c

@@ -29,11 +29,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_strings.c

@@ -29,10 +29,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
 #include <regex.h>
 
 #include "asterisk/module.h"

funcs/func_timeout.c

@@ -28,11 +28,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_uri.c

@@ -32,11 +32,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_version.c

@@ -26,11 +26,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"

funcs/func_vmcount.c

@@ -29,12 +29,7 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
 #include <dirent.h>
-#include <sys/types.h>
 
 #include "asterisk/file.h"
 #include "asterisk/channel.h"

funcs/func_volume.c

@@ -30,8 +30,6 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#include <stdlib.h>
-
 #include "asterisk/module.h"
 #include "asterisk/channel.h"
 #include "asterisk/pbx.h"