fetchmail: Update to 6.4.19 and using python3

- Update from 6.3.26 (2013-04-23) to 6.4.19 (2021-04-24)
- Update rootfile
- Delete fetchmail-6.3.26-permit-build-without-ssl3.patch as it is not
   needed with version 6.4.19
- Added command to use python3 to lfs
- Changelog is too large to include here
   Full details can be found in NEWS file in the source tarball

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/fetchmail

@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 6.3.26
+VER        = 6.4.19
 
 THISAPP    = fetchmail-$(VER)
 DL_FILE    = $(THISAPP).tar.xz
@@ -32,7 +32,7 @@ DL_FROM    = $(URL_IPFIRE)
 DIR_APP    = $(DIR_SRC)/$(THISAPP)
 TARGET     = $(DIR_INFO)/$(THISAPP)
 PROG       = fetchmail
-PAK_VER    = 9
+PAK_VER    = 10
 
 DEPS       =
 
@@ -44,7 +44,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_MD5 = 61b66faad044afa26e142bb1791aa2b3
+$(DL_FILE)_MD5 = f9c2fe96065b19f168ad834a7e3e0a25
 
 install : $(TARGET)
 
@@ -77,9 +77,9 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar Jxf $(DIR_DL)/$(DL_FILE)
-	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/fetchmail-6.3.26-permit-build-without-ssl3.patch
 	$(UPDATE_AUTOMAKE)
-	cd $(DIR_APP) && ./configure \
+	cd $(DIR_APP) && PYTHON=python3 \
+		./configure \
 		--prefix=/usr \
 		--with-ssl \
 		--disable-nls