New package: yaboot-1.3.17

This should replace the yaboot-bin package (which should be dropped
assuming this is found to be working well). This, instead of taking
the binary from Debian, compiles yaboot from source.

The tricky part here is e2fsprogs, or rather, libext2fs. Yaboot
requires a fairly old version of it, and being a strictly ppc32
program, needs that library compiled in a minimal form for ppc32.
In order to achieve that, I abuse the cross-compiler, using the
musl ppc32 cross-compiler as that's universally available on all
crosshosts, as well as all ppc64 (and ppc32 doesn't need it).

The main reason to do this over shipping the binary is that this
will actually work properly on some ppc64 machines, which require
the bundled addnote executable, which can now be compiled properly
for the native architecture.

srcpkgs/yaboot/patches/0001-xfs-support.patch

@@ -0,0 +1,11 @@
+--- a/second/fs_xfs.c
++++ b/second/fs_xfs.c
+@@ -661,8 +661,6 @@
+
+ 	startpos = xfs_file->pos;
+ 	endpos = xfs_file->pos + len;
+-	if (endpos > xfs_file->len)
+-		endpos = xfs_file->len;
+ 	endofprev = (xfs_fileoff_t)-1;
+ 	init_extents ();
+ 	while (len > 0 && (xad = next_extent ())) {

srcpkgs/yaboot/patches/0002-new-fsf-address.patch

@@ -0,0 +1,11 @@
+--- a/COPYING
++++ b/COPYING
+@@ -2,7 +2,7 @@
+ 		       Version 2, June 1991
+
+  Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+-     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
++     51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+  Everyone is permitted to copy and distribute verbatim copies
+  of this license document, but changing it is not allowed.
+

srcpkgs/yaboot/patches/0003-build-system.patch

@@ -0,0 +1,110 @@
+This is different from what Debian does. It does several things required only
+for us. We disable usage of native CFLAGS for the yaboot binary itself as that
+is loaded by OF (and is 32-bit). We keep CFLAGS intact for the userland part.
+
+Additionally, we fix various paths, and make sure a 32-bit crosscompiler is
+used for yaboot itself, in order to ensure linkage against correct libgcc and
+so on, which is required. We alter the flags for that too (must be synchronized
+with the flags used for e2fsprogs, see the template).
+
+Also do not strip the binaries upon install, xbps-src will take care of that.
+
+--- a/Makefile
++++ b/Makefile
+@@ -7,8 +7,8 @@ VERSION = 1.3.17
+ DEBUG = 0
+ # make install vars
+ ROOT =
+-PREFIX = usr/local
+-MANDIR = man
++PREFIX = usr
++MANDIR = share/man
+ # command used to get root (needed for tarball creation)
+ GETROOT = fakeroot
+
+@@ -32,14 +32,17 @@ LD		:= $(CROSS)ld
+ AS		:= $(CROSS)as
+ OBJCOPY		:= $(CROSS)objcopy
+
++# The compiler to use for yaboot itself
++YBCC = $(CC)
++
+ # The flags for the yaboot binary.
+ #
+-YBCFLAGS = -Os -m32 $(CFLAGS) -nostdinc -Wall -isystem `$(CC) -m32 -print-file-name=include` -fsigned-char
++YBCFLAGS = -Os -m32 -nostdinc -Wall -isystem `$(YBCC) -m32 -print-file-name=include` -fsigned-char
+ YBCFLAGS += -DVERSION="\"${VERSION}${VERSIONEXTRA}\""
+ YBCFLAGS += -DTEXTADDR=$(TEXTADDR) -DDEBUG=$(DEBUG)
+ YBCFLAGS += -DMALLOCADDR=$(MALLOCADDR) -DMALLOCSIZE=$(MALLOCSIZE)
+ YBCFLAGS += -DKERNELADDR=$(KERNELADDR)
+-YBCFLAGS += -Werror -fdiagnostics-show-option
++YBCFLAGS += -fgnu89-inline -fno-builtin-malloc -fno-stack-protector -no-pie
+ YBCFLAGS += -I ./include
+ YBCFLAGS += -fno-strict-aliasing
+
+@@ -69,12 +72,12 @@ LFLAGS = -Ttext $(TEXTADDR) -Bstatic -melf32ppclinux
+
+ # Libraries
+ #
+-LLIBS = -lext2fs
++LLIBS = ./libext2fs.a ./libcom_err.a
+
+ # For compiling userland utils
+ #
+ UCFLAGS = -Os $(CFLAGS) -Wall -I/usr/include
+-UCFLAGS += -Werror -fdiagnostics-show-option
++UCFLAGS += -fdiagnostics-show-option
+
+ # For compiling build-tools that run on the host.
+ #
+@@ -103,7 +106,7 @@ OBJS += second/fs_reiserfs.o
+ endif
+
+ # compilation
+-lgcc = `$(CC) -m32 -print-libgcc-file-name`
++lgcc = `$(YBCC) -m32 -print-libgcc-file-name`
+
+ all: yaboot addnote mkofboot
+
+@@ -125,10 +128,10 @@ mkofboot:
+ 	fi
+
+ %.o: %.c
+-	$(CC) $(YBCFLAGS) -c -o $@ $<
++	$(YBCC) $(YBCFLAGS) -c -o $@ $<
+
+ %.o: %.S
+-	$(CC) $(YBCFLAGS) -D__ASSEMBLY__  -c -o $@ $<
++	$(YBCC) $(YBCFLAGS) -D__ASSEMBLY__  -c -o $@ $<
+
+ dep:
+ 	makedepend -Iinclude *.c lib/*.c util/*.c gui/*.c
+@@ -181,9 +184,9 @@ strip: all
+ 	strip util/addnote
+ 	strip --remove-section=.comment --remove-section=.note util/addnote
+
+-install: all strip
++install: all
+ 	install -d -o root -g root -m 0755 ${ROOT}/etc/
+-	install -d -o root -g root -m 0755 ${ROOT}/${PREFIX}/sbin/
++	install -d -o root -g root -m 0755 ${ROOT}/${PREFIX}/bin/
+ 	install -d -o root -g root -m 0755 ${ROOT}/${PREFIX}/lib
+ 	install -d -o root -g root -m 0755 ${ROOT}/${PREFIX}/lib/yaboot
+ 	install -d -o root -g root -m 0755 ${ROOT}/${PREFIX}/${MANDIR}/man5/
+@@ -191,11 +194,11 @@ install: all strip
+ 	install -o root -g root -m 0644 second/yaboot ${ROOT}/$(PREFIX)/lib/yaboot
+ 	install -o root -g root -m 0755 util/addnote ${ROOT}/${PREFIX}/lib/yaboot/addnote
+ 	install -o root -g root -m 0644 first/ofboot ${ROOT}/${PREFIX}/lib/yaboot/ofboot
+-	install -o root -g root -m 0755 ybin/ofpath ${ROOT}/${PREFIX}/sbin/ofpath
+-	install -o root -g root -m 0755 ybin/ybin ${ROOT}/${PREFIX}/sbin/ybin
+-	install -o root -g root -m 0755 ybin/yabootconfig ${ROOT}/${PREFIX}/sbin/yabootconfig
+-	rm -f ${ROOT}/${PREFIX}/sbin/mkofboot
+-	ln -s ybin ${ROOT}/${PREFIX}/sbin/mkofboot
++	install -o root -g root -m 0755 ybin/ofpath ${ROOT}/${PREFIX}/bin/ofpath
++	install -o root -g root -m 0755 ybin/ybin ${ROOT}/${PREFIX}/bin/ybin
++	install -o root -g root -m 0755 ybin/yabootconfig ${ROOT}/${PREFIX}/bin/yabootconfig
++	rm -f ${ROOT}/${PREFIX}/bin/mkofboot
++	ln -s ybin ${ROOT}/${PREFIX}/bin/mkofboot
+ 	@gzip -9 man/*.[58]
+ 	install -o root -g root -m 0644 man/bootstrap.8.gz ${ROOT}/${PREFIX}/${MANDIR}/man8/bootstrap.8.gz
+ 	install -o root -g root -m 0644 man/mkofboot.8.gz ${ROOT}/${PREFIX}/${MANDIR}/man8/mkofboot.8.gz