Compiling Python-2.7.14 on AIX

NevemTeve · 03-21-2018, 01:36 PM

Well, I did compiler Python-2.7.11 earlier, but that was with configure-option '--disable-shared'.
Now I try to compile it with '--enable-shared'.
It stops when it tries to create libpython2.7.so: for some reason it uses the following option: -Wl,-bI:./Modules/python.exp
In the previous version, there used to be such a file, it contained the symbols exported by the main executable.
Also it there is this bit: -Wl,-hlibpython2.7.so -- this means nothing to the AIX-linker.
Also the -rpath is wrong, too: -rpath /usr/local/lib64/python2.7/lib-dynload should be: -rpath /usr/local/lib64/

Edit: There is symbol BLDSHARED in Makefile, it is used when linking libpython2.7.so and when linking modules. Problem is, they should go into different places: /usr/local/lib/libpython2.7.so vs /usr/local/lib/python2.7/lib-dynload/

Edit: so for the moment, I add this to my compile-script:

Code:

sed_repl $'s;^\t\t''$(BLDSHARED);aix-libtool --mode=link $(CC) -rpath /usr/local/lib64;
           s;-Wl,-h$(INSTSONAME);;
         ' Makefile

PS: here's some random thoughts regarding linking/compiling in AIX

NevemTeve · 03-22-2018, 11:07 AM

Also, the detection of 'rl_pre_input_hook' is broken in configure:

Code:

char rl_pre_input_hook ();

but in readline, it is a function-pointer, not a function.

Code:

rl_hook_func_t *rl_pre_input_hook = (rl_hook_func_t *)NULL;

I'll try this:

Code:

sed_repl 's/char rl_pre_input_hook ();/char (*rl_pre_input_hook) ();/' configure

Edit: the same goes for 'rl_completion_display_matches_hook'

Better now:

Code:

dump -X64 -H /usr/local/bin/python2.7
INDEX  PATH                          BASE                MEMBER              
0      /usr/local/lib64:/usr/lib                                             
1      /usr/local/lib64              libgcc_s.a          shr.o               
2      /usr/local/lib64              libpython2.7.so                         
3      /usr/local/lib64              libutil.so.1                            
4      /usr/local/lib64              libcpotlas.so.1                         
5      /usr/lib                      libpthreads.a       shr_xpg5_64.o       
6      /usr/lib                      libc.a              shr_64.o            

# dump -X -H /usr/local/lib64/libpython2.7.so
INDEX  PATH                          BASE                MEMBER              
0      /usr/local/lib64:/usr/lib                                             
1      /usr/local/lib64              libgcc_s.a          shr.o               
2      /usr/local/lib64              libutil.so.1                            
3      /usr/local/lib64              libcpotlas.so.1                         
4      /usr/lib                      libdl.a             shr_64.o            
5      /usr/lib                      libpthreads.a       shr_xpg5_64.o       
6      /usr/lib                      libc.a              shr_64.o64 -H /usr/local/lib64

# dump -H -X64 /usr/local/lib64/python2.7/lib-dynload/_curses.so
0      /usr/local/lib64:/usr/lib                                             
1      /usr/local/lib64              libgcc_s.a          shr.o               
2      /usr/local/src/Python-2.7.14/.libs libpython2.7.so                         
3      /usr/local/lib64              libutil.so.1                            
4      /usr/local/lib64              libcpotlas.so.1                         
5      /usr/lib                      libcurses.a         shr42_64.o          
6      /usr/lib                      libc.a              shr_64.o

Underlined is the wrong bit