How to include libgmp to xeus-cling?

Question

I am trying to run the following code:

#pragma cling add_library_path("/usr/lib/x86_64-linux-gnu")
#pragma cling add_include_path("/usr/include")
#pragma cling add_include_path("/usr/include/x86_64-linux-gnu")
#pragma cling load("/usr/lib/x86_64-linux-gnu/libgmp.so")
#pragma cling load("/usr/lib/x86_64-linux-gnu/libgmpxx.so")
#include <gmpxx.h>

and I get following errors:

In file included from input_line_8:1:
In file included from /usr/include/gmpxx.h:44:
In file included from /usr/include/x86_64-linux-gnu/gmp.h:56:
In file included from /usr/include/limits.h:26:
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:56:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_BFP_EXT) || __GLIBC_USE (ISOC2X)
    ^
/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:73:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_FUNCS_EXT) || __GLIBC_USE (ISOC2X)
    ^
In file included from input_line_8:1:
In file included from /usr/include/gmpxx.h:44:
In file included from /usr/include/x86_64-linux-gnu/gmp.h:56:
/usr/include/limits.h:145:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
    ^

I am trying to include <limits.h> firstly:

#include <limits.h>
#pragma cling add_library_path("/usr/lib/x86_64-linux-gnu")
#pragma cling add_include_path("/usr/include")
#pragma cling add_include_path("/usr/include/x86_64-linux-gnu")
#pragma cling load("/usr/lib/x86_64-linux-gnu/libgmp.so")
#pragma cling load("/usr/lib/x86_64-linux-gnu/libgmpxx.so")
#include <gmpxx.h>

but I still get the error

In file included from input_line_9:1:
In file included from /usr/include/gmpxx.h:44:
In file included from /usr/include/x86_64-linux-gnu/gmp.h:56:
/usr/include/limits.h:145:5: error: function-like macro '__GLIBC_USE' is not defined
#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
    ^

How to make <libgmpxx.h> use <limits.h> from xeus-cling, not from /usr/include?

`limits.h` is already included in gmp, you don't have to include it. I don't use xeus-cling but in C++ you have to include `-lgmpxx -lgmp` in the compile line. — Arc, Feb 03 '22 at 16:09

score 0 · Answer 1 · answered Feb 04 '22 at 14:09

0

#pragma cling load("libgmpxx.so")
#pragma cling load("libgmp.so")
#include <gmpxx.h>

is enough. The order of system directories is quite fragile, and you got it wrong, but the good news is that they are already searched implicitly in the right order.

answered Feb 04 '22 at 14:09

Marc Glisse

7,550
2
30
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`input_line_8:1:10: fatal error: 'gmpxx.h' file not found #include ^~~~~~~~~ ` – Филя Усков Feb 08 '22 at 17:03
Well, it works on my computer, I don't know what you system is or how you installed xeus-cling. If you installed it with conda, you could try `conda install gmp` in the same environment. – Marc Glisse Feb 08 '22 at 19:42

score 0 · Accepted Answer · answered Feb 08 '22 at 17:08

0

in jupyter:

#include <stddef.h>    /* for size_t */
#include <limits.h>
#define __xeus_cling__
#pragma cling add_library_path("/usr/lib/x86_64-linux-gnu")
#pragma cling add_include_path("/usr/include")
#pragma cling add_include_path("/usr/include/x86_64-linux-gnu")
#pragma cling load("/usr/lib/x86_64-linux-gnu/libgmp.so")
#pragma cling load("/usr/lib/x86_64-linux-gnu/libgmpxx.so")
#include <gmpxx.h>

and in /usr/include/x86_64-linux-gnu/gmp.h

  #include <stddef.h>    /* for size_t */
  #include <limits.h>

replace with

#ifndef __xeus_cling__
  #include <stddef.h>    /* for size_t */
  #include <limits.h>
#endif

answered Feb 08 '22 at 17:08

Филя Усков

101
1
7

1

Your main issue is that gmpxx.h is not in the default include path of your compiler, it is in /usr/include, and you can't add `/usr/include` to the include path without causing trouble because of all the other headers in there. If xeus-cling had the equivalent of `-idirafter`, that would be nice, but I don't see it. The easiest workaround is to create a new directory `/some/where/my/include`, add this one to the include path, and create symbolic links to whatever you need in there (gmpxx.h and gmp.h). – Marc Glisse Feb 08 '22 at 19:47

How to include libgmp to xeus-cling?

2 Answers2