I am using BASH as my login shell and GNU make. When I compile
scsh version 0.3, I get compile errors in the regexp directory because
make finds a value for ENV in my environment. ENV is a common Bourne/
BASH environment variable and the Makefile in the regexp directory uses it.
Here's a bit of the "make" output that shows what happens:
cd scsh/regexp; make
make: Entering directory `/leg/gnu/scsh-0.3/scsh/regexp'
gcc -posix -O2 -g /toe/toe/brown/.environ -I. -c try.c -o try.o
gcc: /toe/toe/brown/.environ: linker input file unused since linking not done