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Author: "P. J. McDermott" <pj@pehjota.net>
Subject: Properly support a shared library
diff -Naur src.orig/Makefile src/Makefile
--- src.orig/Makefile 2010-09-10 18:46:02.000000000 -0400
+++ src/Makefile 2014-06-11 12:35:03.717651900 -0400
@@ -23,6 +23,9 @@
BIGFILES=-D_FILE_OFFSET_BITS=64
CFLAGS=-Wall -Winline -O2 -g $(BIGFILES)
+SONAME=libbz2.so.1.0
+VERSION=1.0.6
+
# Where you want it installed when you do 'make install'
PREFIX=/usr/local
@@ -35,14 +38,17 @@
decompress.o \
bzlib.o
-all: libbz2.a bzip2 bzip2recover test
+all: libbz2.so.$(VERSION) libbz2.a bzip2 bzip2recover
-bzip2: libbz2.a bzip2.o
+bzip2: libbz2.so.$(VERSION) bzip2.o
- $(CC) $(CFLAGS) $(LDFLAGS) -o bzip2 bzip2.o -L. -lbz2
+ $(CC) $(CFLAGS) $(LDFLAGS) -o bzip2 bzip2.o libbz2.so.$(VERSION)
bzip2recover: bzip2recover.o
$(CC) $(CFLAGS) $(LDFLAGS) -o bzip2recover bzip2recover.o
+libbz2.so.$(VERSION): $(OBJS:.o=.sho)
+ $(CC) -o $@ -shared -Wl,-soname,$(SONAME) $(OBJS:.o=.sho) -lc
+
libbz2.a: $(OBJS)
rm -f libbz2.a
$(AR) cq libbz2.a $(OBJS)
@@ -55,11 +61,17 @@
check: test
test: bzip2
@cat words1
+ LD_PRELOAD=./libbz2.so.$(VERSION) \
./bzip2 -1 < sample1.ref > sample1.rb2
+ LD_PRELOAD=./libbz2.so.$(VERSION) \
./bzip2 -2 < sample2.ref > sample2.rb2
+ LD_PRELOAD=./libbz2.so.$(VERSION) \
./bzip2 -3 < sample3.ref > sample3.rb2
+ LD_PRELOAD=./libbz2.so.$(VERSION) \
./bzip2 -d < sample1.bz2 > sample1.tst
+ LD_PRELOAD=./libbz2.so.$(VERSION) \
./bzip2 -d < sample2.bz2 > sample2.tst
+ LD_PRELOAD=./libbz2.so.$(VERSION) \
./bzip2 -ds < sample3.bz2 > sample3.tst
cmp sample1.bz2 sample1.rb2
cmp sample2.bz2 sample2.rb2
@@ -87,6 +99,8 @@
chmod a+r $(PREFIX)/man/man1/bzip2.1
cp -f bzlib.h $(PREFIX)/include
chmod a+r $(PREFIX)/include/bzlib.h
+ cp -f libbz2.so.$(VERSION) $(PREFIX)/lib
+ chmod a+r $(PREFIX)/lib/libbz2.so.$(VERSION)
cp -f libbz2.a $(PREFIX)/lib
chmod a+r $(PREFIX)/lib/libbz2.a
cp -f bzgrep $(PREFIX)/bin/bzgrep
@@ -109,29 +123,20 @@
echo ".so man1/bzdiff.1" > $(PREFIX)/man/man1/bzcmp.1
clean:
- rm -f *.o libbz2.a bzip2 bzip2recover \
+ rm -f *.o *.sho libbz2.so* libbz2.a bzip2 bzip2recover \
sample1.rb2 sample2.rb2 sample3.rb2 \
sample1.tst sample2.tst sample3.tst
-blocksort.o: blocksort.c
+.SUFFIXES:
+.SUFFIXES: .c .o .sho
+
+blocksort.sho: blocksort.c
@cat words0
- $(CC) $(CFLAGS) -c blocksort.c
+ $(CC) $(CFLAGS) -D_REENTRANT -fPIC -c -o $@ $?
-huffman.o: huffman.c
- $(CC) $(CFLAGS) -c huffman.c
-crctable.o: crctable.c
- $(CC) $(CFLAGS) -c crctable.c
-randtable.o: randtable.c
- $(CC) $(CFLAGS) -c randtable.c
-compress.o: compress.c
- $(CC) $(CFLAGS) -c compress.c
-decompress.o: decompress.c
- $(CC) $(CFLAGS) -c decompress.c
-bzlib.o: bzlib.c
- $(CC) $(CFLAGS) -c bzlib.c
-bzip2.o: bzip2.c
- $(CC) $(CFLAGS) -c bzip2.c
-bzip2recover.o: bzip2recover.c
- $(CC) $(CFLAGS) -c bzip2recover.c
+.c.o:
+ $(CC) $(CFLAGS) -D_REENTRANT -c -o $@ $<
+.c.sho:
+ $(CC) $(CFLAGS) -D_REENTRANT -fPIC -c -o $@ $<
distclean: clean
|
