On 2017/9/9 下午4:39, do xing Chiang wrote:

Dear ALL:
I have Problem With bcache-tools  compile , I got a problem with a new
upgrade kernel from 2.6.x to  4.4.13 on Centos 6.9
but my Base is on Centos 6.9 , it means a lot of libs are old for BCACHE .
Bcache was introduce in Kernel 3.X
When I compiled bcache-tools
it happened


alhost ~]# gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-3/root/usr/libexec/gcc/x86_64-redhat-linux/4.9.2/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/opt/rh/devtoolset-3/root/usr
--mandir=/opt/rh/devtoolset-3/root/usr/share/man
--infodir=/opt/rh/devtoolset-3/root/usr/share/info
--with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap
--enable-shared --enable-threads=posix --enable-checking=release
--enable-multilib --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-linker-build-id --enable-languages=c,c++,fortran,lto
--enable-plugin --with-linker-hash-style=gnu --enable-initfini-array
--disable-libgcj
--with-isl=/builddir/build/BUILD/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/isl-install
--with-cloog=/builddir/build/BUILD/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/cloog-install
--with-mpc=/builddir/build/BUILD/gcc-4.9.2-20150212/obj-x86_64-redhat-linux/mpc-install
--with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.9.2 20150212 (Red Hat 4.9.2-6) (GCC)



[root@localhost ~]# cd bcachefs-tools/
[root@localhost bcachefs-tools]# make
cc -std=gnu89 -O2 -g -MMD -Wall -Wno-pointer-sign -fno-strict-aliasing
-I. -Iinclude -Ilibbcachefs -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
-D_LGPL_SOURCE -DRCU_MEMBARRIER -DNO_BCACHE_CHARDEV -DNO_BCACHE_FS
-DNO_BCACHE_SYSFS  -Wno-unused-but-set-variable -flto `pkg-config
--cflags "blkid uuid liburcu libsodium zlib"`   -c -o bcachefs.o
bcachefs.c
In file included from tools-util.h:15:0,
                 from cmds.h:10,
                 from bcachefs.c:24:
include/linux/log2.h:188:1: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or
‘__attribute__’ before ‘int’
 int __get_order(unsigned long size)
 ^
make: *** [bcachefs.o] Error 1

It seems you are compiling bcachefs-tool. But you ask for bcache-tool.
Which one do you exactly want to run ?

-- 
Coly Li