libssh2-1.8.0 Compilation failed on Z/OS V2R1

[Manikandan J]

Hi,

We have compiled the libssh2-1.8.0 source on windows & Linux platform. It
is working fine. But when we try to compile the same on Z/OS V2R1 platform,
got the following error message,

Failure is happening while the configuration particularly while creating
*./config.status*

*checking whether `alloca.c' needs Cray hooks... no*
*checking stack direction for C alloca... -1*
*checking for an ANSI C-conforming const... yes*
*checking for inline... __inline__*
*checking non-blocking sockets style... O_NONBLOCK*
*checking that generated files are newer than configure... done*
*configure: creating ./config.status*
*./configure 20275: FSUM7330 << unclosed*
*gmake[1]: *** [../libssh2-1.8.0/Makefile] Error 1*
*gmake[1]: Target `all' not remade because of errors.*

We have used the below c89 compiler options for the compilation,

LPATHIDX=0

ARGS[0]="c89"
ARGS[1]="-Wc,target(zOSV2R1),langlvl(extended),halton(CCN3296),longname,rent,enum(int),float(ieee),noansialias,exportall,dll,xplink,norostring"
ARGS[2]="-Wl,compat=ZOSV2R1,xplink"
ARGS[3]="-D_XOPEN_SOURCE=600"
ARGS[4]="-D_XOPEN_SOURCE_EXTENDED"
ARGS[5]="-D_LARGEFILE_SOURCE"
ARGS[6]="-D_LARGEFILE64_SOURCE"
ARGS[7]="-DMVS"
ARGS[8]="-D_OE_SOCKETS"
ARGS[9]="-O2"
ARGIDX=${#ARGS[@]}

Please help me to resolve this.
Thanks in advance!!!

[Kirk Wolf]

Have you done much porting of open source to z/OS?
I don't actually know if the libssh2 upstream can be configured for z/OS
(#ifdef __MVS__).
It is often a challenge, since:

- the shell is a "posix" ksh variant,
- make isn't gmake,
- the compiler isn't gcc,
- the library isn't libc,
- the system codepage is EBCDIC (IBM-1047),
- etc, etc, etc.

Rocket Software (a vendor of lots of z/OS software) has ported lots of open
source tools, including libssh2 that they make available for free (and sell
support).
https://www.rocketsoftware.com/zos-open-source/tools

It looks like they currently have 1.4.3, but you might at least start there.

Kirk Wolf
Dovetailed Technologies
http://dovetail.com

Post by Manikandan J
Hi,
We have compiled the libssh2-1.8.0 source on windows & Linux platform. It
is working fine. But when we try to compile the same on Z/OS V2R1 platform,
got the following error message,
Failure is happening while the configuration particularly while creating
*./config.status*
*checking whether `alloca.c' needs Cray hooks... no*
*checking stack direction for C alloca... -1*
*checking for an ANSI C-conforming const... yes*
*checking for inline... __inline__*
*checking non-blocking sockets style... O_NONBLOCK*
*checking that generated files are newer than configure... done*
*configure: creating ./config.status*
*./configure 20275: FSUM7330 << unclosed*
*gmake[1]: *** [../libssh2-1.8.0/Makefile] Error 1*
*gmake[1]: Target `all' not remade because of errors.*
We have used the below c89 compiler options for the compilation,
LPATHIDX=0
ARGS[0]="c89"
ARGS[1]="-Wc,target(zOSV2R1),langlvl(extended),halton(CCN3296),longname,rent,enum(int),float(ieee),noansialias,exportall,dll,xplink,norostring"
ARGS[2]="-Wl,compat=ZOSV2R1,xplink"
ARGS[3]="-D_XOPEN_SOURCE=600"
ARGS[4]="-D_XOPEN_SOURCE_EXTENDED"
ARGS[5]="-D_LARGEFILE_SOURCE"
ARGS[6]="-D_LARGEFILE64_SOURCE"
ARGS[7]="-DMVS"
ARGS[8]="-D_OE_SOCKETS"
ARGS[9]="-O2"
Please help me to resolve this.
Thanks in advance!!!
--
*Thanks and Regards,*
*Manikandan J *
*Please consider Environment before printing this Email.*
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