🚀 go-pugleaf

I have been trying to build IV3.1beta on a Sparcstation 1, using
SunC++ 2.1 and X11R4 under SunOs 4.1.2

There are no compilation errors but libIV.so is never created when the
source files have been compiled. The directories InterViews,
IV-2_6, IV-X11, Dispatch, OS and TIFF all seem to be traversed
properly during compilation

In comparison, when libUnidraw is created, I get a message:

...
building libUnidraw.so.3.1
rm -f libUnidraw.so.3.1~
ld -o libUnidraw.so.3.1~ -assert pure-text *.o
rm -f libUnidraw.so.3.1
mv libUnidraw.so.3.1~ libUnidraw.so.3.1
...

after the sources are compiled. However, for libIV there is never such
a message. There are no other errors except of course that when
building the executables it complains that libIV does not exist.

In case it is of importance, apart from setting the compiler and X11
directories correctly, I have inserted the following at the
appropriate places in local.def:

#define LanguageCCDefines -Dcplusplus_2_1
#define SharedCCFlags -PIC

In addition I set my temp directory somewhere else with
#ExtraCCFlags

Can someone tell me what is going on here?

Thanks,