ltrace: fix for musl.

srcpkgs/ltrace/template

@@ -1,7 +1,7 @@
 # Template file for 'ltrace'
 pkgname=ltrace
 version=0.7.3
-revision=3
+revision=4
 build_style=gnu-configure
 hostmakedepends="automake libtool git"
 makedepends="elfutils-devel"
@@ -11,10 +11,19 @@ maintainer="Juan RP <xtraeme@voidlinux.eu>"
 homepage="http://ltrace.alioth.debian.org/"
 license="GPL-2"
 
-CFLAGS="-Wno-error"
+CFLAGS="-Wno-error -D_GNU_SOURCE"
 
 do_fetch() {
 	git clone -b${version} git://anonscm.debian.org/collab-maint/ltrace.git ${wrksrc}
+	cd ${wrksrc}
+	case "$XBPS_TARGET_MACHINE" in
+	*-musl)
+		sed -i '/HOST_OS/s/linux-uclibc/linux-musl/g' configure.ac
+		sed -i 's/REG_NOERROR/0/g' options.c glob.c
+		sed -i -e '/error.h/d' -e 's/error(1, errno/err(1/' \
+			read_config_file.c expr.c zero.c
+		sed -i '1i#include <sys/types.h>' proc.h
+	esac
 }
 pre_configure() {
 	autoreconf -fi