From ae48be8e2157bc7c352b3b6d30c026fafdae4867 Mon Sep 17 00:00:00 2001
From: Nick Hainke <vincent@systemli.org>
Date: Sun, 11 Sep 2022 14:31:33 +0200
Subject: [PATCH] iperf3: add shared libiperf library and link iperf3
 dynamically

Add library for creating own functions with iperf3 functionality.
Example: https://github.com/esnet/iperf/blob/master/examples/mis.c
This library is needed by python3-iperf3.

Build iperf3 binary with dynamically linked libiperf3. However, still
build iperf3-ssl as static binary due to a lack of shipping two libiperf
versions.

Signed-off-by: Nick Hainke <vincent@systemli.org>
---
 net/iperf3/Makefile | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/net/iperf3/Makefile b/net/iperf3/Makefile
index de17f81c2e..db3b6e4326 100644
--- a/net/iperf3/Makefile
+++ b/net/iperf3/Makefile
@@ -32,6 +32,7 @@ define Package/iperf3/default
   CATEGORY:=Network
   TITLE:=Internet Protocol bandwidth measuring tool
   URL:=https://github.com/esnet/iperf
+  DEPENDS:=+libiperf3
 endef
 
 define Package/iperf3
@@ -43,14 +44,20 @@ define Package/iperf3-ssl
 $(call Package/iperf3/default)
   TITLE+= with iperf_auth support
   VARIANT:=ssl
-  DEPENDS:= +libopenssl
+  DEPENDS+=+libopenssl
+endef
+
+define Package/libiperf3
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=Internet Protocol bandwidth measuring library
+  URL:=https://github.com/esnet/iperf
 endef
 
 TARGET_CFLAGS += -D_GNU_SOURCE
-CONFIGURE_ARGS += --disable-shared
 
 ifeq ($(BUILD_VARIANT),ssl)
-	CONFIGURE_ARGS += --with-openssl="$(STAGING_DIR)/usr"
+	CONFIGURE_ARGS += --with-openssl="$(STAGING_DIR)/usr" --disable-shared
 else
 	CONFIGURE_ARGS += --without-openssl
 endif
@@ -63,6 +70,17 @@ define Package/iperf3/description
  characteristics.
 endef
 
+define Package/libiperf3/description
+ Libiperf is a library providing an API for iperf3 functionality.
+endef
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libiperf.* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/include/* $(1)/usr/include/
+endef
+
 # autoreconf fails if the README file isn't present
 define Build/Prepare
 	$(call Build/Prepare/Default)
@@ -79,5 +97,11 @@ define Package/iperf3-ssl/install
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/iperf3 $(1)/usr/bin/
 endef
 
+define Package/iperf3/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libiperf.so.* $(1)/usr/lib
+endef
+
 $(eval $(call BuildPackage,iperf3))
 $(eval $(call BuildPackage,iperf3-ssl))
+$(eval $(call BuildPackage,libiperf3))
-- 
2.30.2