[beast: 1/19] BUILD: add 'distcheck' to try builds out of tree and with srcdir==builddir

[Tim Janik <timj src gnome org>]

commit 094ac494f5fbe7c9bb57edb97e34aa92ac5e6c68
Author: Tim Janik <timj gnu org>
Date:   Sun Oct 9 23:29:36 2016 +0200

    BUILD: add 'distcheck' to try builds out of tree and with srcdir==builddir
    
    Signed-off-by: Tim Janik <timj gnu org>

 Makefile.am |   45 ++++++++++++++++++++++++++++++++-------------
 1 files changed, 32 insertions(+), 13 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 5d3b2ff..f511e1c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -47,15 +47,6 @@ bse-app-test:
 installcheck-local: bse-app-test
 
 
-# == distcheck-checks ==
-distcheck-check-xz-opt:
-       $(Q) test "$$XZ_OPT" != '--fast' -a "$$XZ_OPT" != '-0' || \
-       { echo "distcheck: error: bad compression option for distribution tarball: XZ_OPT=$$XZ_OPT" >&2 ; 
exit 1 ; }
-check-update-po:
-       $(Q) $(MAKE) -C po check-update-po
-DISTCHECK_HOOK = distcheck # help add dependencies to 'distcheck' without overriding its definition
-$(DISTCHECK_HOOK): distcheck-check-xz-opt check-update-po
-
 # == Dist Fixes ==
 # Some files remain after distcheck, that we cannot clean up. So we role our own listfiles filter.
 distuninstallcheck_listfiles  = find . -type f $(patsubst ./%, ! -path \*/%, $(uninstall_filter_files)) 
-print
@@ -67,10 +58,6 @@ uninstall_filter_files = $(strip     \
        ./share/mime/mime.cache         ./share/mime/generic-icons      ./share/mime/globs      \
 )
 
-# (test_option, INPUTSTRING, YESOPT, [NOOPT]) :- true if YESOPT is present
-test_option = test `echo ":$(strip $(1)):" | sed 's/.*:$(strip $(2))://g' | wc -c` -lt \
-      `echo ":$(strip $(1)):" | sed 's/.*:$(or $(strip $(3)), no-$(strip $(2)))://g' | wc -c`
-
 # == topbuildid.cc ==
 EXTRA_DIST  += misc/mkbuildid.sh topbuildid.hh
 topbuildid ::= $(shell $(topdir)/misc/mkbuildid.sh -p topbuildid.cc topbuildid.hh) # "update rule" for 
topbuildid.cc
@@ -93,3 +80,35 @@ ChangeLog: $(GITSTAMPS)
 noinst_DATA          += ChangeLog
 MAINTAINERCLEANFILES += ChangeLog
 EXTRA_DIST           += ChangeLog taptool.sh
+
+# == distcheck ==
+# distcheck_uniqdir - directory for build tests, outside of srcdir, unique per user and checkout
+# distcheck_uniqdir = $(shell printf distcheck-%d-%04x\\n $$UID 0x`X=$$(pwd) && echo -n "$$X" | md5sum | sed 
's/^\(....\).*/\1/'`)
+distcheck_uniqdir = $(shell python -c "import os, md5; print ('distcheck-%u-%s' % (os.getuid(), md5.new 
(os.getcwd()).hexdigest()[:4]))")
+distcheck: dist
+       $(Q) TMPDIR="$${TMPDIR-$${TEMP-$${TMP-/tmp}}}" \
+       && DDIR="$$TMPDIR/$(distcheck_uniqdir)" \
+       && TARBALL=`readlink -f $(firstword $(DIST_ARCHIVES))` \
+       && test -n "$$TMPDIR" -a -n "$(distcheck_uniqdir)" -a -n "$$DDIR" -a -n "$(distdir)" -a -n 
"$$TARBALL" \
+       && mkdir -p "$$DDIR" \
+       && set -x \
+       && rm -rf "$$DDIR/$(distdir)/" \
+       && cd "$$DDIR" \
+       && tar xf "$$TARBALL" \
+       && cd "$(distdir)" \
+       && ./configure --prefix="`pwd`/_inst" $(AM_DISTCHECK_CONFIGURE_FLAGS) $(DISTCHECK_CONFIGURE_FLAGS) \
+       && $(MAKE) $(AM_MAKEFLAGS) \
+       && $(MAKE) $(AM_MAKEFLAGS) check \
+       && $(MAKE) $(AM_MAKEFLAGS) install \
+       && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+       && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+       && rm -rf "$$DDIR/$(distdir)/" \
+       && { rmdir -p "$$DDIR" 2>/dev/null || true ; } \
+       && echo "Archive OK: $$TARBALL"
+.PHONY: distcheck
+
+# == distcheck-checks ==
+check-update-po:
+       $(Q) $(MAKE) -C po check-update-po
+DISTCHECK_HOOK = distcheck # help add dependencies to 'distcheck' without overriding its definition
+$(DISTCHECK_HOOK): check-update-po