iperf: Upgrade to version 2.0.8

The original iperf package is unmaintained. This switches to the "iperf2"
project on sourceforge, a fork that started where the previous iperf left
off.

Version 2.0.8 fixes the issue that patch 002 handled, so that can be dropped.

Due to a faulty check in configure.ac, this version needs _GNU_SOURCE
defined to build properly against musl. Various other obsolete build
options were also removed.

Signed-off-by: Bert Vermeulen <bert@biot.com>

package/network/utils/iperf/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=iperf
-PKG_VERSION:=2.0.5
+PKG_VERSION:=2.0.8
 PKG_RELEASE:=1
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=@SF/$(PKG_NAME)
-PKG_MD5SUM:=44b5536b67719f4250faed632a3cd016
+PKG_SOURCE_URL:=@SF/iperf2
+PKG_MD5SUM:=e5887f799d8dc64a974c6c2f2e5cc339
 
 PKG_MAINTAINER:=Felix Fietkau <nbd@openwrt.org>
 PKG_LICENSE:=BSD-3-Clause
@@ -29,7 +29,7 @@ define Package/iperf/Default
   CATEGORY:=Network
   DEPENDS:= $(CXX_DEPENDS)
   TITLE:=Internet Protocol bandwidth measuring tool
-  URL:=http://sourceforge.net/projects/iperf/
+  URL:=http://sourceforge.net/projects/iperf2/
 endef
 
 define Package/iperf/Default/description
@@ -61,14 +61,11 @@ $(call Package/iperf/Default/description)
  This package is built with multithread support.
 endef
 
+TARGET_CFLAGS += -D_GNU_SOURCE
 CONFIGURE_ARGS += --disable-multicast
-CONFIGURE_VARS += ac_cv_func_malloc_0_nonnull=yes
 
 ifeq ($(BUILD_VARIANT),single)
   CONFIGURE_ARGS += --disable-threads
-else
-  CONFIGURE_ARGS += --enable-threads=posix
-  CONFIGURE_VARS += ac_cv_func_pthread_cancel=no
 endif
 
 CONFIGURE_VARS += CXXFLAGS="$$$$CXXFLAGS -fno-rtti"

package/network/utils/iperf/patches/002-format-security.patch

@@ -1,96 +0,0 @@
-Description: iperf format string FTBFS with -Werror=format-security
- Reported by Didier Raboud <odyx@debian.org>
-Author: Simon Paillard <spaillard@debian.org>
-Bug-Debian: http://bugs.debian.org/643408
-
---- a/compat/Thread.c
-+++ b/compat/Thread.c
-@@ -381,7 +381,7 @@ int thread_release_nonterm( int interrup
-     Condition_Lock( thread_sNum_cond );
-     thread_sNum -= nonterminating_num;
-     if ( thread_sNum > 1 && nonterminating_num > 0 && interrupt != 0 ) {
--        fprintf( stderr, wait_server_threads );
-+        fprintf( stderr, "%s", wait_server_threads );
-     }
-     nonterminating_num = 0;
-     Condition_Signal( &thread_sNum_cond );
---- a/src/ReportDefault.c
-+++ b/src/ReportDefault.c
-@@ -78,7 +78,7 @@ void reporter_printstats( Transfer_Info
-     if ( stats->mUDP != (char)kMode_Server ) {
-         // TCP Reporting
-         if( !header_printed ) {
--            printf( report_bw_header);
-+            printf( "%s", report_bw_header);
-             header_printed = 1;
-         }
-         printf( report_bw_format, stats->transferID, 
-@@ -87,7 +87,7 @@ void reporter_printstats( Transfer_Info
-     } else {
-         // UDP Reporting
-         if( !header_printed ) {
--            printf( report_bw_jitter_loss_header);
-+            printf( "%s", report_bw_jitter_loss_header);
-             header_printed = 1;
-         }
-         printf( report_bw_jitter_loss_format, stats->transferID, 
-@@ -159,7 +159,7 @@ void reporter_reportsettings( ReporterDa
-                   (data->mThreadMode == kMode_Listener ? 0 : 1) );
-     win_requested = data->mTCPWin;
- 
--    printf( separator_line );
-+    printf( "%s", separator_line );
-     if ( data->mThreadMode == kMode_Listener ) {
-         printf( server_port,
-                 (isUDP( data ) ? "UDP" : "TCP"), 
-@@ -198,7 +198,7 @@ void reporter_reportsettings( ReporterDa
-         printf( warn_window_requested, buffer );
-     }
-     printf( "\n" );
--    printf( separator_line );
-+    printf( "%s", separator_line );
- }
- 
- /*
-@@ -286,7 +286,7 @@ void reporter_reportMSS( int inMSS, thre
-         } else if ( checkMSS_MTU( inMSS, 576 ) ) {
-             net = "minimum";
-             mtu = 576;
--            printf( warn_no_pathmtu );
-+            printf( "%s", warn_no_pathmtu );
-         } else {
-             mtu = inMSS + 40;
-             net = "unknown interface";
---- a/src/Reporter.c
-+++ b/src/Reporter.c
-@@ -901,7 +901,7 @@ void PrintMSS( ReporterData *stats ) {
-         } else if ( checkMSS_MTU( inMSS, 576 ) ) {
-             net = "minimum";
-             mtu = 576;
--            printf( warn_no_pathmtu );
-+            printf( "%s", warn_no_pathmtu );
-         } else {
-             mtu = inMSS + 40;
-             net = "unknown interface";
---- a/src/Settings.cpp
-+++ b/src/Settings.cpp
-@@ -375,8 +375,8 @@ void Settings_Interpret( char option, co
-             break;
- 
-         case 'h': // print help and exit
--            fprintf(stderr, usage_long1);
--            fprintf(stderr, usage_long2);
-+            fprintf(stderr, "%s", usage_long1);
-+            fprintf(stderr, "%s", usage_long2);
-             exit(1);
-             break;
- 
-@@ -482,7 +482,7 @@ void Settings_Interpret( char option, co
-             break;
- 
-         case 'v': // print version and exit
--            fprintf( stderr, version );
-+            fprintf( stderr, "%s", version );
-             exit(1);
-             break;
-