编译 Mac环境 版本:macOS 10.14.3
- 解压下载的bsdiff-4.3.tar.gz
tar -zxvf bsdiff-4.3.tar.gz
- 进入bsdiff-4.3目录,在终端下执行构建
cd bsdiff-4.3
make
此时报错: -Makefile:13: *** missing separator. Stop.
这是makefile文件的内容的格式不对,修改Makefile文件,修改后的文件内容如下:
CFLAGS += -O3 -lbz2
PREFIX ?= /usr/local
INSTALL_PROGRAM ?= ${INSTALL} -c -s -m 555
INSTALL_MAN ?= ${INSTALL} -c -m 444
all: bsdiff bspatch
bsdiff: bsdiff.c
bspatch: bspatch.c
install:
${INSTALL_PROGRAM} bsdiff bspatch ${PREFIX}/bin
.ifndef WITHOUT_MAN
${INSTALL_MAN} bsdiff.1 bspatch.1 ${PREFIX}/man/man1
.endif
修改方法为增加 .ifndef WITHOUT_MAN
与。endif
的缩进与上下行对齐
再执行make,又有报错如下:
cc -O3 -lbz2 bsdiff.c -o bsdiff
cc -O3 -lbz2 bspatch.c -o bspatch
bspatch.c:39:21: error: unknown type name 'u_char'; did you mean 'char'?
static off_t offtin(u_char *buf)
^~~~~~
char
bspatch.c:65:8: error: expected ';' after expression
u_char header[32],buf[8];
^
;
bspatch.c:65:2: error: use of undeclared identifier 'u_char'; did you mean
'putchar'?
u_char header[32],buf[8];
^~~~~~
putchar
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/stdio.h:172:6: note:
'putchar' declared here
int putchar(int);
^
bspatch.c:65:9: error: use of undeclared identifier 'header'
u_char header[32],buf[8];
^
bspatch.c:65:20: error: use of undeclared identifier 'buf'
u_char header[32],buf[8];
^
bspatch.c:66:2: error: use of undeclared identifier 'u_char'; did you mean
'putchar'?
u_char *old, *new;
^~~~~~
putchar
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/stdio.h:172:6: note:
'putchar' declared here
int putchar(int);
^
bspatch.c:66:10: error: use of undeclared identifier 'old'
u_char *old, *new;
^
bspatch.c:66:16: error: use of undeclared identifier 'new'
u_char *old, *new;
^
bspatch.c:93:12: error: use of undeclared identifier 'header'
if (fread(header, 1, 32, f) < 32) {
^
bspatch.c:100:13: error: use of undeclared identifier 'header'
if (memcmp(header, "BSDIFF40", 8) != 0)
^
bspatch.c:104:19: error: use of undeclared identifier 'header'
bzctrllen=offtin(header+8);
^
bspatch.c:105:19: error: use of undeclared identifier 'header'
bzdatalen=offtin(header+16);
^
bspatch.c:106:17: error: use of undeclared identifier 'header'
newsize=offtin(header+24);
^
* 2. Redistributions in binary form must reproduce the above copyright
bspatch.c:137:5: error: use of undeclared identifier 'old'
((old=malloc(oldsize+1))==NULL) ||
^
bspatch.c:139:12: error: use of undeclared identifier 'old'
(read(fd,old,oldsize)!=oldsize) ||
^
bspatch.c:141:6: error: use of undeclared identifier 'new'
if((new=malloc(newsize+1))==NULL) err(1,NULL);
^
bspatch.c:147:43: error: use of undeclared identifier 'buf'
lenread = BZ2_bzRead(&cbz2err, cpfbz2, buf, 8);
^
bspatch.c:151:19: error: use of undeclared identifier 'buf'
ctrl[i]=offtin(buf);
^
bspatch.c:159:42: error: use of undeclared identifier 'new'
lenread = BZ2_bzRead(&dbz2err, dpfbz2, new + newpos, ctrl[0]);
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make: *** [bspatch] Error 1
解决方法为在bspatch.c文件中加入#include <sys/types.h>
然后再执行make命令,此时命令执行成功,会在当前目录下生成bsdiff,bspatch文件
- 生成差分包:
./bsdiff oldfile newfile patchfile