trn: fix for musl.

srcpkgs/trn/template

@@ -1,7 +1,7 @@
 # Template file for 'trn'
 pkgname=trn
 version=4.0test77
-revision=3
+revision=4
 wrksrc=$pkgname-${version/test/-test}
 build_style=gnu-makefile
 hostmakedepends="groff bison"
@@ -14,12 +14,15 @@ homepage="http://trn.sourceforge.net/"
 distfiles="${SOURCEFORGE_SITE}/${pkgname}/${pkgname}4/${wrksrc}.tar.gz"
 checksum=9ab0430244903ad86ed74fcc2fdc39dc043d23968888e071313050a967b8a6ff
 
+post_extract() {
+	sed -i 's/pipe2/pipetwo/g' filter.c
+	sed -i '1i#include <time.h>' nntpclient.h
+}
 do_configure() {
 	cp ${FILESDIR}/Policy.sh .
 	./Configure -OdErs
 	./Configure -desS
 }
-
 do_install() {
 	make ${makejobs} install CC="$CC" \
 		rnbin=${DESTDIR}/usr/bin \