[ptxdist] [PATCH v2 6/7] host-cups: new package: CUPS host tools

[Roland Hieber <r.hieber@pengutronix.de>]

Most printer drivers compile model-specific PPDs from a generic schema
during the build process, using ppdc, the PPD compiler. ppdc must be
able to find CUPS' internal include files, which are architecture-
independent and can be used from sysroot-host.

Unfortunately, the CUPS build system is rather inflexible, so we have to
build the whole core distribution to get a working ppdc.

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
---

Notes:
    changes in v1 -> v2:
     - remove unused code in host-cups.make
     - compile ppdc in compile stage, not in install stage
     - use @$(call compile) and $(call install), not $(MAKE) directly
     - use --exec-prefix=/ and --libdir=/lib/ to get rid of LD_LIBRARY_PATH
     - set CUPS_DATADIR in sysroot-cross wrapper, so an additional include path is
       no longer needed, and ppdc also doesn't look for files on the host file
       system!
     - make clean stage more silent

 rules/host-cups.in   |   7 ++++
 rules/host-cups.make | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 121 insertions(+)
 create mode 100644 rules/host-cups.in
 create mode 100644 rules/host-cups.make

diff --git a/rules/host-cups.in b/rules/host-cups.in
new file mode 100644
index 000000000..45edccada
--- /dev/null
+++ b/rules/host-cups.in
@@ -0,0 +1,7 @@
+## SECTION=hosttools_noprompt
+
+config HOST_CUPS
+	tristate
+	default ALLYES
+
+# vim: ft=kconfig ts=8 noet tw=80
diff --git a/rules/host-cups.make b/rules/host-cups.make
new file mode 100644
index 000000000..5dd88e47b
--- /dev/null
+++ b/rules/host-cups.make
@@ -0,0 +1,114 @@
+# -*-makefile-*-
+#
+# Copyright (C) 2017 by Roland Hieber <r.hieber@pengutronix.de>
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+#
+# We provide this package
+#
+HOST_PACKAGES-$(PTXCONF_HOST_CUPS) += host-cups
+
+# ----------------------------------------------------------------------------
+# Prepare
+# ----------------------------------------------------------------------------
+
+#
+# autoconf
+#
+# The --with-* options are only used to specify strings, --without-* does
+# nothing. So we're omitting them here. The only exception is
+# --with-components=core, which we are setting to only builds libcups* (which is
+# needed by ppdc).
+#
+# We have to set --exec-prefix and --libdir, otherwise the libs end up in
+# ${prefix}/lib64, which is not what we want.
+#
+HOST_CUPS_CONF_TOOL	:= autoconf
+HOST_CUPS_CONF_OPT	:= \
+	$(HOST_AUTOCONF) \
+	--exec-prefix=/ \
+	--libdir=/lib/ \
+	--disable-mallinfo \
+	--disable-libpaper \
+	--disable-libusb \
+	--disable-tcp-wrappers \
+	--disable-acl \
+	--disable-dbus \
+	--disable-libtool-unsupported \
+	--disable-debug \
+	--disable-debug-guards \
+	--disable-debug-printfs \
+	--disable-unit-tests \
+	--disable-relro \
+	--disable-gssapi \
+	--disable-threads \
+	--disable-ssl \
+	--disable-cdsassl \
+	--disable-gnutls \
+	--disable-pam \
+	--disable-largefile \
+	--disable-avahi \
+	--disable-dnssd \
+	--disable-launchd \
+	--disable-systemd \
+	--disable-upstart \
+	--disable-page-logging \
+	--disable-browsing \
+	--disable-default-shared \
+	--disable-raw-printing \
+	--disable-webif \
+	--with-components=core
+
+# ----------------------------------------------------------------------------
+# Compile
+# ----------------------------------------------------------------------------
+
+$(STATEDIR)/host-cups.compile:
+	@$(call targetinfo)
+	@$(call world/compile, HOST_CUPS)
+	@# ppdc isn't built by --with-components=core
+	@$(call compile, HOST_CUPS, -C ${HOST_CUPS_DIR}/ppdc)
+	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Install
+# ----------------------------------------------------------------------------
+
+HOST_CUPS_MAKE_ENV := \
+	DSTROOT=$(HOST_CUPS_PKGDIR)
+
+$(STATEDIR)/host-cups.install:
+	@$(call targetinfo)
+	@$(call world/install, HOST_CUPS)
+	@# ppdc isn't included in --with-components=core
+	@$(call install, HOST_CUPS, ${HOST_CUPS_DIR}/ppdc)
+	@$(call touch)
+
+CROSS_PPDC = $(PTXDIST_SYSROOT_CROSS)/bin/ppdc
+$(STATEDIR)/host-cups.install.post:
+	@$(call targetinfo)
+	@$(call world/install.post, HOST_CUPS)
+
+	( \
+		echo '#!/bin/sh'; \
+		echo 'CUPS_DATADIR=$(PTXDIST_SYSROOT_HOST)/share/cups $(PTXDIST_SYSROOT_HOST)/bin/ppdc "$$@"'; \
+	) > $(CROSS_PPDC)
+	chmod +x $(CROSS_PPDC)
+
+	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Clean
+# ----------------------------------------------------------------------------
+
+$(STATEDIR)/host-cups.clean:
+	@$(call targetinfo)
+	@$(call clean_pkg, HOST_CUPS)
+	@rm -vf $(CROSS_PPDC)
+
+# vim: ft=make ts=8 tw=80
-- 
2.11.0


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