Installation
From Seismic Unix
Note
Most system headers have a dazzling variety of #if conditionals. If you specify the wrong flags for your system the compile can get confused in interesting ways. If your system requires certain things in CFLAGS, they need to be defined on the OPTC line of Makefile.config. Otherwise, they won't be passed to all the Makefiles. The CFLAGS used for many portions of CWP/SU are defined in the
file ${CWPROOT}/src/Rules/cflags.rules rather than the CFLAGS line in Makefile.config
