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Hurricane Tong

2014-Feb-13 02:34 UTC

[Xapian-devel] 回复： A beginner in "Posting list encoding improvements"

I think what i did is the same with you except i use make rather than make -sj8,
and I did as root.
And I do as you wrote again:


root at
hurricanetong-VirtualBox:/home/hurricanetong/xapian-1.2.17/xapian-core-1.2.17#
./configure

[...]
root at
hurricanetong-VirtualBox:/home/hurricanetong/xapian-1.2.17/xapian-core-1.2.17#
make -sj8
Making all in .
Making all in docs
Making all in tests

root at
hurricanetong-VirtualBox:/home/hurricanetong/xapian-1.2.17/xapian-core-1.2.17#
sudo make install

[...]


then


root at hurricanetong-VirtualBox:/home/hurricanetong/workspace# g++
`xapian-config --cxxflags --libs` demo2.cpp
/tmp/ccRXtBxB.o: In function `main':
demo2.cpp:(.text+0x4a): undefined reference to
`Xapian::WritableDatabase::WritableDatabase(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
int)'
demo2.cpp:(.text+0x73): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
demo2.cpp:(.text+0x98): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
collect2: ld ?? 1





root at hurricanetong-VirtualBox:/home/hurricanetong/workspace# which
xapian-config
/usr/local/bin/xapian-config
root at hurricanetong-VirtualBox:/home/hurricanetong/workspace# xapian-config
--version
xapian-config - xapian-core 1.2.17



root at hurricanetong-VirtualBox:/home/hurricanetong/workspace#  ls -l
/usr/local/lib/libxapian*
-rw-r--r-- 1 root root 37827146  2? 13 10:21 /usr/local/lib/libxapian.a
-rwxr-xr-x 1 root root      944  2? 13 10:21 /usr/local/lib/libxapian.la
lrwxrwxrwx 1 root root       19  2? 13 10:21 /usr/local/lib/libxapian.so ->
libxapian.so.22.6.4
lrwxrwxrwx 1 root root       19  2? 13 10:21 /usr/local/lib/libxapian.so.22
-> libxapian.so.22.6.4
-rwxr-xr-x 1 root root 19577253  2? 13 10:21 /usr/local/lib/libxapian.so.22.6.4



Best Regards.




------------------
HurricaneTong,Second Year Undergraduate,
School of Computer Science,
Fudan University, China.


 




------------------ ???? ------------------
???: "Olly Betts";<olly at survex.com>;
????: 2014?2?13?(???) ??10:09
???: "Hurricane Tong"<zhangshangtong.cpp at qq.com>; 
??: "xapian-devel"<xapian-devel at lists.xapian.org>; 
??: Re: [Xapian-devel] A beginner in "Posting list encoding
improvements"



On Thu, Feb 13, 2014 at 09:48:27AM +0800, Hurricane Tong
wrote:> I uninstall xapian1.3 and install xapian-1.2.17
> but i still failed
> 
> hurricanetong at hurricanetong-VirtualBox:~/workspace$ g++ `xapian-config
--cxxflags --libs` demo2.cc
> /tmp/cc2wsfDJ.o: In function `main':
> demo2.cc:(.text+0x4a): undefined reference to
`Xapian::WritableDatabase::WritableDatabase(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
int)'
> demo2.cc:(.text+0x73): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
> demo2.cc:(.text+0x98): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
> collect2: ld ?? 1
> 
> and
> 
> hurricanetong at hurricanetong-VirtualBox:~/workspace$ xapian-config
--cxxflags --libs
> -I/usr/local/include
> -L/usr/local/lib -lxapian
This works for me on Debian unstable with a locally installed xapian-core
1.2.17, which I built using:

$ tar xf xapian-core-1.2.17.tar.xz
$ cd xapian-core-1.2.17
$ ./configure
[...]
$ make -sj8 # quieter build, 8-way parallel
[...]
$ sudo make install
[...]

And then:

$ g++ `xapian-config --cxxflags --libs` BuildIndexDemo.cpp 
$ ./a.out
$ ls -l database
total 16
-rw-r--r-- 1 olly olly  0 Feb 13 15:05 flintlock
-rw-r--r-- 1 olly olly 28 Feb 13 15:05 iamchert
-rw-r--r-- 1 olly olly 13 Feb 13 15:05 postlist.baseA
-rw-r--r-- 1 olly olly  0 Feb 13 15:05 postlist.DB
-rw-r--r-- 1 olly olly 13 Feb 13 15:05 record.baseA
-rw-r--r-- 1 olly olly  0 Feb 13 15:05 record.DB
-rw-r--r-- 1 olly olly 13 Feb 13 15:05 termlist.baseA
-rw-r--r-- 1 olly olly  0 Feb 13 15:05 termlist.DB

I'd check you're running the xapian-config you think you are:

$ which xapian-config
/usr/local/bin/xapian-config
$ xapian-config --version
xapian-config - xapian-core 1.2.17

If you're getting a different xapian-config, you can give an explicit path
to it:

$ g++ `/usr/local/bin/xapian-config --cxxflags --libs` BuildIndexDemo.cpp 

And that the xapian library is really installed in /usr/local/lib:

$ ls -l /usr/local/lib/libxapian*
-rw-r--r-- 1 root staff 78693312 Feb 13 15:02 /usr/local/lib/libxapian.a
-rwxr-xr-x 1 root staff      944 Feb 13 15:02 /usr/local/lib/libxapian.la
lrwxrwxrwx 1 root staff       19 Feb 13 15:02 /usr/local/lib/libxapian.so ->
libxapian.so.22.6.4
lrwxrwxrwx 1 root staff       19 Feb 13 15:02 /usr/local/lib/libxapian.so.22
-> libxapian.so.22.6.4
-rwxr-xr-x 1 root staff 28428107 Feb 13 15:02 /usr/local/lib/libxapian.so.22.6.4

Cheers,
    Olly
.
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Olly Betts

2014-Feb-13 05:32 UTC

head link

[Xapian-devel] 回复： A beginner in "Posting list encoding improvements"

On Thu, Feb 13, 2014 at 10:34:00AM +0800, Hurricane Tong
wrote:> I think what i did is the same with you except i use make rather than
> make -sj8, and I did as root.
It's better to create yourself a user for development work and do as
little as possible as root.  The root user has the rights to do almost
anything, so you can accidentally do a lot of damage (e.g.  "rm *" in
the wrong directory) and a malicious program can do a lot more damage
too.

But compiling as root shouldn't make a difference here.
> root at hurricanetong-VirtualBox:/home/hurricanetong/workspace# g++
`xapian-config --cxxflags --libs` demo2.cpp
> /tmp/ccRXtBxB.o: In function `main':
> demo2.cpp:(.text+0x4a): undefined reference to
`Xapian::WritableDatabase::WritableDatabase(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
int)'
> demo2.cpp:(.text+0x73): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
> demo2.cpp:(.text+0x98): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
> collect2: ld ?? 1
I don't know why this isn't working, as it does for me and others.

Passing the libs last might be worth trying:

g++ `xapian-config --cxxflags` demo2.cpp `xapian-config --libs`

You can also compile with -v to see more details of the process:

g++ -v `xapian-config --cxxflags --libs` demo2.cpp

What version of Ubuntu have you installed?

Cheers,
    Olly

Hurricane Tong

2014-Feb-13 06:02 UTC

head link

[Xapian-devel] 回复：回复： A beginnerin "Posting list encoding improvements"

It's amazing,
"g++ `xapian-config --cxxflags` demo2.cpp `xapian-config --libs` "
work in ubuntu.


------------------
HurricaneTong,Second Year Undergraduate,
School of Computer Science,
Fudan University, China.


 




------------------ ???? ------------------
???: "Olly Betts";<olly at survex.com>;
????: 2014?2?13?(???) ??1:32
???: "Hurricane Tong"<zhangshangtong.cpp at qq.com>; 
??: "Xapian Development"<xapian-devel at lists.xapian.org>; 
??: Re: [Xapian-devel]  ???  A beginnerin "Posting list encoding
improvements"



On Thu, Feb 13, 2014 at 10:34:00AM +0800, Hurricane Tong
wrote:> I think what i did is the same with you except i use make rather than
> make -sj8, and I did as root.
It's better to create yourself a user for development work and do as
little as possible as root.  The root user has the rights to do almost
anything, so you can accidentally do a lot of damage (e.g.  "rm *" in
the wrong directory) and a malicious program can do a lot more damage
too.

But compiling as root shouldn't make a difference here.
> root at hurricanetong-VirtualBox:/home/hurricanetong/workspace# g++
`xapian-config --cxxflags --libs` demo2.cpp
> /tmp/ccRXtBxB.o: In function `main':
> demo2.cpp:(.text+0x4a): undefined reference to
`Xapian::WritableDatabase::WritableDatabase(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
int)'
> demo2.cpp:(.text+0x73): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
> demo2.cpp:(.text+0x98): undefined reference to
`Xapian::WritableDatabase::~WritableDatabase()'
> collect2: ld ?? 1
I don't know why this isn't working, as it does for me and others.

Passing the libs last might be worth trying:

g++ `xapian-config --cxxflags` demo2.cpp `xapian-config --libs`

You can also compile with -v to see more details of the process:

g++ -v `xapian-config --cxxflags --libs` demo2.cpp

What version of Ubuntu have you installed?

Cheers,
    Olly
.
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Xapian devel - Feb 2014 - 回复： 回复： A beginnerin "Posting list encoding improvements"

[Xapian-devel] 回复： A beginner in "Posting list encoding improvements"

[Xapian-devel] 回复： A beginner in "Posting list encoding improvements"

[Xapian-devel] 回复： 回复： A beginnerin "Posting list encoding improvements"

Xapian devel - Feb 2014 - 回复：回复： A beginnerin "Posting list encoding improvements"

[Xapian-devel] 回复：回复： A beginnerin "Posting list encoding improvements"