[asterisk-users] Cross-compiling asterisk-1.4 for Debian on a slug

[Fabiano Sidler]

Hi folks!

I planned to put asterisk-1.4 on my slug (one of these embedded devices).
Since i don't want to compile it natively on this slow processor, i need
a cross-compile toolchain. I tried out several ways such as manually
compiling binutils and gcc, or using scratchbox. All of these with the
result that i got binaries for machines except the one i wanted! :(

I then have been given a link to a optware tree specific to Debian on
the slug[1]. I tried to compile, but at the first attempt, it stopped
with this cruft:

dlfcn.c:1225: error: dereferencing pointer to incomplete type
dlfcn.c:1225: error: dereferencing pointer to incomplete type
dlfcn.c:1225: error: dereferencing pointer to incomplete type
dlfcn.c:1225: error: dereferencing pointer to incomplete type
dlfcn.c:1225: error: dereferencing pointer to incomplete type
dlfcn.c:1225: error: dereferencing pointer to incomplete type
dlfcn.c:1230: error: dereferencing pointer to incomplete type
dlfcn.c:1231: error: dereferencing pointer to incomplete type
dlfcn.c:1234: error: invalid application of `sizeof' to incomplete type 
`mach_header'
dlfcn.c:1235: error: dereferencing pointer to incomplete type
dlfcn.c:1235: error: dereferencing pointer to incomplete type
dlfcn.c:1237: error: `LC_SYMTAB' undeclared (first use in this function)
dlfcn.c:1237: error: dereferencing pointer to incomplete type
dlfcn.c:1240: error: dereferencing pointer to incomplete type
dlfcn.c:1241: error: dereferencing pointer to incomplete type
dlfcn.c:1244: error: dereferencing pointer to incomplete type
dlfcn.c:1249: error: dereferencing pointer to incomplete type
dlfcn.c:1250: error: dereferencing pointer to incomplete type
dlfcn.c:1250: error: `N_PEXT' undeclared (first use in this function)
dlfcn.c:1251: error: dereferencing pointer to incomplete type
dlfcn.c:1251: error: `N_EXT' undeclared (first use in this function)
dlfcn.c:1254: error: increment of pointer to unknown structure
dlfcn.c:1254: error: arithmetic on pointer to an incomplete type
dlfcn.c:1257: error: dereferencing pointer to incomplete type
dlfcn.c:1257: error: dereferencing pointer to incomplete type
dlfcn.c:1259: error: dereferencing pointer to incomplete type
dlfcn.c:1262: error: increment of pointer to unknown structure
dlfcn.c:1262: error: arithmetic on pointer to an incomplete type
dlfcn.c:1266: error: dereferencing pointer to incomplete type
dlfcn.c:1267: error: dereferencing pointer to incomplete type
dlfcn.c: In function `search_linked_libs':
dlfcn.c:515: warning: value computed is not used
dlfcn.c: In function `dlsymIntern':
dlfcn.c:563: warning: unsupported arg to `__builtin_return_address'
dlfcn.c: In function `dladdr':
dlfcn.c:1198: warning: value computed is not used
dlfcn.c:1221: warning: value computed is not used
dlfcn.c:1235: warning: value computed is not used
dlfcn.c: At top level:
dlfcn.c:133: error: storage size of `mainStatus' isn't known
dlfcn.c:83: warning: 'NSSymbol' declared `static' but never defined
make[1]: *** [dlfcn.o] Error 1
make[1]: Leaving directory 
`/home/user/down/optware/cs04q3armel/builds/asterisk'
make: *** [/home/user/down/optware/cs04q3armel/builds/asterisk/.built] Error 2


I then removed the whole optware subdir and retried, this time with another
error (?):

gai_strerror.c:61: error: `EAI_IDN_ENCODE' undeclared here (not in a function)
gai_strerror.c:61: error: initializer element is not constant
gai_strerror.c:61: error: (near initialization for `values[16].code')
gai_strerror.c:61: error: initializer element is not constant
gai_strerror.c:61: error: (near initialization for `values[16]')
make[6]: *** [gai_strerror.lo] Error 1
make[6]: Leaving directory `/home/user/optware/cs04q3armel/builds/gnutls/gl'
make[5]: *** [all] Error 2
make[5]: Leaving directory 
`/home/user/down/optware/cs04q3armel/builds/gnutls/gl'
make[4]: *** [all-recursive] Error 1
make[4]: Leaving directory `/home/user/down/optware/cs04q3armel/builds/gnutls'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/home/user/down/optware/cs04q3armel/builds/gnutls'
make[2]: *** [/home/user/down/optware/cs04q3armel/builds/gnutls/.built] Error 
2
make[2]: Leaving directory `/home/user/down/optware/cs04q3armel'
make[1]: *** [/home/user/down/optware/cs04q3armel/builds/iksemel/.configured] 
Error 2
make[1]: Leaving directory `/home/user/down/optware/cs04q3armel'
make: *** [/home/user/down/optware/cs04q3armel/builds/asterisk14/.configured] 
Error 2


I then tried to build other packages such as arping, which could be compiled
without any problems and ran on my slug! Further, i compiled the asterisk
package for the nslu2 platform (instead of cs04q3armel), again without any
errors, but the resulting binaries did not run due endianess issues.
Debian/Slug is little-endian while most other nslu2-linuxes seem to be
big-endianed.

Could a friendly and helpful soul out there have a heart with me and tell
me how to produce a working package? Thanks in advance!

Greetings,
Fabiano

[1] http://www.nslu2-linux.org/wiki/Optware/DebianArmEtch