From 03162f8f477fb7634edbf53ad4e9dfca433dd9d9 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Tue, 25 Apr 2006 10:45:53 +0000
Subject: * Unless --with-bzip2 is specified, use a copy of bzip2 in the  
 externals directory.  This is in particular useful because though   most
 systems have bzip2/bunzip2, they don't always have libbz2,   which we need
 for bsdiff/bspatch.

---
 externals/Makefile.am | 39 ++++++++++++++++++++++++++++++++++++---
 1 file changed, 36 insertions(+), 3 deletions(-)

(limited to 'externals/Makefile.am')

diff --git a/externals/Makefile.am b/externals/Makefile.am
index dcddaa5d139d..7fa9e6f6426b 100644
--- a/externals/Makefile.am
+++ b/externals/Makefile.am
@@ -64,10 +64,43 @@ build-aterm: have-aterm
 endif
 
 
-all: build-db build-aterm
+# bzip2
 
-EXTRA_DIST = $(DB).tar.gz $(ATERM).tar.gz
+BZIP2 = bzip2-1.0.3
+
+$(BZIP2).tar.gz:
+	@echo "Nix requires bzip2 to build."
+	@echo "Please download version 1.0.3 from"
+	@echo "  http://www.bzip.org/1.0.3/bzip2-1.0.3.tar.gz"
+	@echo "and place it in the externals/ directory."
+	false
+
+$(BZIP2): $(BZIP2).tar.gz
+	gunzip < $(BZIP2).tar.gz | tar xvf -
+
+have-bzip2:
+	$(MAKE) $(BZIP2)
+	touch have-bzip2
+
+if HAVE_BZIP2
+build-bzip2:
+else
+build-bzip2: have-bzip2
+	(pfx=`pwd` && \
+	cd $(BZIP2) && \
+	$(MAKE) && \
+	$(MAKE) install PREFIX=$$pfx/inst-bzip2)
+	touch build-bzip2
+
+install:
+	cp $(bzip2_bin_test)/bzip2 $(bzip2_bin_test)/bunzip2 ${bzip2_bin}
+endif
+
+
+all: build-db build-aterm build-bzip2
+
+EXTRA_DIST = $(DB).tar.gz $(ATERM).tar.gz $(BZIp2).tar.gz
 
 ext-clean:
 	$(RM) -f have-db build-db have-aterm build-aterm
-	$(RM) -rf $(DB) $(ATERM)
+	$(RM) -rf $(DB) $(ATERM) $(BZIP2)
-- 
cgit 1.4.1