collectd: unbreak musl

Signed-off-by: Jürgen Buchmüller <pullmoll@t-online.de>

srcpkgs/collectd/patches/gnu_source.patch

@@ -0,0 +1,14 @@
+#
+# Define GNU_SOURCE so perl will be properly detected
+#
+--- configure.ac
++++ configure.ac
+@@ -48,6 +48,8 @@
+ 
+ PKG_PROG_PKG_CONFIG
+ 
++AC_GNU_SOURCE
++
+ AC_CACHE_CHECK([if Bison is the parser generator],
+   [collectd_cv_prog_bison],
+   [

srcpkgs/collectd/template

@@ -27,10 +27,6 @@ if [ -z "$CROSS_BUILD" ]; then
 	build_options_default="rrdtool perl"
 fi
 
-case "$XBPS_TARGET_MACHINE" in
-	*-musl) broken="https://build.voidlinux.eu/builders/x86_64-musl_builder/builds/8355/steps/shell_3/logs/stdio" ;;
-esac
-
 pre_configure() {
 	autoreconf -fi
 }