>> Checksum OK for txtmerge101.tar.gz.
===> Extracting for txtmerge-1.01
===> Patching for txtmerge-1.01
===> Configuring for txtmerge-1.01
===> Building for txtmerge-1.01
cc -O /usr/include -o txtmerge txtmerge.c
ld: /usr/include: malformed input file (not rel or archive)
*** Error code 1
Stop.