perl-Tk: enable cross build

srcpkgs/perl-Tk/patches/cross.patch

@@ -0,0 +1,27 @@
+For libpng and libjpeg Makefile.PL tries to run a short test program to see if
+the system libraries can be used. From native builds we know they can so remove
+the test.
+
+--- PNG/Makefile.PL.orig	2013-11-18 10:04:04.000000000 +0100
++++ PNG/Makefile.PL	2018-09-14 09:31:08.785202470 +0200
+@@ -53,8 +53,7 @@
+  $all_libs   = "$libpng_libs $zlib_libs";
+ }
+ 
+-if ($Tk::MMtry::VERSION ge '4.007' &&
+-    try_run("config/has_png.c",[$all_cflags],[$all_libs]))
++if ($Tk::MMtry::VERSION ge '4.007')
+  {
+   warn "Using system's -lpng\n";
+   Tk::MMutil::TkExtMakefile(
+--- JPEG/Makefile.PL.orig	2013-11-18 10:04:04.000000000 +0100
++++ JPEG/Makefile.PL	2018-09-14 09:35:28.041623709 +0200
+@@ -6,7 +6,7 @@
+ 
+ use Tk::MMtry;
+ 
+-if ($Tk::MMtry::VERSION ge '4.007' && try_run("config/has_jpeg.c",['-I/usr/local/include'],['-ljpeg']))
++if ($Tk::MMtry::VERSION ge '4.007')
+  {
+   push(@args, LIBS => ['-ljpeg'],
+               INC  => '-I/usr/local/include',

srcpkgs/perl-Tk/template

@@ -4,16 +4,16 @@ version=804.034
 revision=3
 wrksrc="${pkgname#*-}-${version}"
 build_style=perl-module
-configure_args="X11INC=/usr/include"
+configure_args="X11INC=${XBPS_CROSS_BASE}/usr/include
-hostmakedepends="perl libX11-devel libpng-devel libjpeg-turbo-devel"
+ X11LIB=${XBPS_CROSS_BASE}/usr/lib"
-makedepends="${hostmakedepends}"
+hostmakedepends="perl pkg-config"
+makedepends="perl libX11-devel libpng-devel libjpeg-turbo-devel"
 short_desc='Tk graphical interface for Perl'
 maintainer="Enguerrand de Rochefort <voidlinux@rochefort.de>"
 homepage="https://metacpan.org/release/Tk"
-license="GPL-1, Artistic"
+license="Artistic-1.0-Perl, GPL-1.0-or-later"
 distfiles="${CPAN_SITE}/Tk/Tk-${version}.tar.gz"
 checksum=fea6b144c723528a2206c8cd9175844032ee9c14ee37791f0f151e5e5b293fe2
-nocross="http://build.voidlinux.eu/builders/armv7l_builder/builds/21051/steps/shell_3/logs/stdio"
 
 post_configure() {
 	sed -i 's,X11/Xproto.h,,; s,X11/Xutil.h,,' pTk/Makefile