g++ (gxx) doesn't supply the parameter '-lstdcx' to gcc. I guess this isn't,
strictly speaking, a bug, but it does make compiling small C++ programs more
cumbersome than it needs to be.

I worked around this problem by copying the .o files from libstdcx.a into
libgpp.a which is included by g++.

Here's a batch file to do it:
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rem The following two lines depend on your installation
c:
cd \djgpp\lib (depends on your installation)

rem * It is important to use a temporary directory as the
rem * lib directory has .o files in it.
md temp
copy libstdcx.a temp
copy libgpp.a temp
cd temp

ar -x libstdcx.a
ar -rs libgpp.a *.o

move libgpp.a ..
del *.*
cd ..
rd temp
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I hope this works for you!

This will be fixed in the next release.