First, create /usr/local/parsec and copy the contents of parsec/redhat-7.2 there. Then include /usr/local/parsec/bin in the PATH system variable. Running pcc should be possible now.
To compile GloMoSim, change to glomosim/main, run
export PCC_PP_OPTIONS = "-D__builtin_va_list=void* -D__STRICT_ANSI__ -E -U__GNUC__ -I."
and “make”.