Checking if your kit is complete...
Looks good
Writing Makefile for WebMoney::WMSigner
cp WMSigner.pm blib/lib/WebMoney/WMSigner.pm
/home/cpanrun/pa-risc1.1/build/5.6.1/bin/perl -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/PA-RISC1.1-thread-multi -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1 /home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp  -C++ -typemap /home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/ExtUtils/typemap WMSigner.xs > WMSigner.xsc && mv WMSigner.xsc WMSigner.c
Please specify prototyping behavior for WMSigner.xs (see perlxs manual)
g++ -c  -D_POSIX_C_SOURCE=199506L -D_HPUX_SOURCE +DA1.1 +DS2.0a +z -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Ae -g   -DVERSION=\"0.02\" -DXS_VERSION=\"0.02\" +z -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/PA-RISC1.1-thread-multi/CORE  WMSigner.c
g++: +DA1.1: No such file or directory
g++: +DS2.0a: No such file or directory
g++: +z: No such file or directory
g++: +z: No such file or directory
*Initialization*:1: missing token-sequence in `#assert'
make: *** [WMSigner.o] Error 1