Hello,
right now the Live CD Makefiles are equivalent to shell scripts. I mean
that all targets are always remade, and the need to actually build a
package, download a file, ... is checked at shell level, not at makefile
level.
Also the current system has a drawback that if one editor bumps a
package version, others don't pick up the command to rebuild that
package (what happens is: the nev version of foo is downloaded, but
/usr/bin/foo is in place, therefore the package doesn't get rebuilt).
For ./configure arguments changing, the situation is even worse: nothing
is done automatically to reflect that change.
Another drawback is that in order to forcibly rebuild a package, a file
must be removed from the chroot. I already made a mistake and deleted my
/bin/ls outside of chroot. I don't want to make this mistake again.
There must be a safer method to forcibly rebuild a package.
Attached is a patch that adds a restructured Makefile for a sample
package "byacc" (in fact I will need that package in /usr in the utf8
branch soon, because it is a dependency for the OpenI18n testsuite). The
only installed file is /usr/local/bin/yacc, so it is easy to delete.
This makefile checks the need to download and build the package by using
make rules, not @if... constructs. Try changing the VRS variable and see
how the package gets re-downloaded and re-built. Touch Makefile to
forcibly rebuild byacc.
Drawback: this works reliably only if svn doesn't set timestamps on
downloaded files. Is there any option for this?
--
Alexander E. Patrakov
Index: Makefile
===================================================================
--- Makefile (revision 353)
+++ Makefile (working copy)
@@ -176,6 +176,7 @@
post-bash: ch-file ch-libtool ch-bzip2 ch-diffutils ch-kbd ch-e2fsprogs
ch-grep ch-grub ch-gzip \
ch-hotplug ch-man ch-make ch-module-init-tools ch-patch ch-procps
ch-psmisc ch-shadow \
+ ch-byacc \
ch-sysklogd ch-sysvinit ch-tar ch-udev ch-util-linux ch-environment
blfs: ch-openssl ch-wget ch-reiserfsprogs ch-xfsprogs ch-nano ch-joe ch-screen
ch-curl ch-zip \
@@ -552,6 +553,10 @@
make -C $(PKG)/$@ chroot
make unmount
+byacc: prep-chroot
+ make -C $(PKG)/$@ chroot
+ make unmount
+
sysklogd: prep-chroot
make -C $(PKG)/$@ chroot
make unmount
@@ -1153,6 +1158,9 @@
ch-shadow: popdev
make -C $(PKG)/shadow stage2
+ch-byacc: popdev
+ make -C $(PKG)/byacc stage2
+
ch-sysklogd: popdev
make -C $(PKG)/sysklogd stage2
Index: packages/byacc/Makefile
===================================================================
--- packages/byacc/Makefile (revision 0)
+++ packages/byacc/Makefile (revision 0)
@@ -0,0 +1,32 @@
+# byacc makefile
+NM=byacc
+VRS=20040328
+#VRS=20050505
+DIR=$(NM)-$(VRS)
+FILE=$(DIR).tgz
+URL=ftp://invisible-island.net/$(NM)/$(FILE)
+
+$(FILE):
+ $(WGET) $(URL)
+
+chroot:
+ @chroot "$(MP)" $(chenv2) 'cd $(ROOT) && make ch-$(NM) $(chbash2)'
+
+stage2: Makefile $(FILE)
+ @echo ""
+ @echo "=====> Building $(NM) in chroot"
+ @echo ""
+ unpack $(FILE)
+ $(MAKE) -C $(DIR) -f ../Makefile compile-stage2
+ $(MAKE) clean
+ touch stage2
+
+compile-stage2:
+ ./configure --prefix=/usr/local
+ make
+ make install
+
+clean:
+ rm -rf $(DIR)
+
+.PHONY: chroot compile-stage2 clean
--
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