This file is indexed.

/etc/mpich2/mpif77.conf is in libmpich2-dev 1.4.1-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#! /bin/sh
#
# This file contains configuration information for mpif77.  This is
# essentially just the variable-initialization part of mpif77.
# --------------------------------------------------------------------------
# Set the default values of all variables.
#
# Directory locations: Fixed for any MPI implementation
# Set from the directory arguments to configure (e.g., --prefix=/usr
prefix=/usr
exec_prefix=/usr
sysconfdir=/etc/mpich2
includedir=/usr/include/mpich2
libdir=/usr/lib

# Default settings for compiler, flags, and libraries
# Determined by a combination of environment variables and tests within
# configure (e.g., determining whehter -lsocket is needee)
F77="gfortran"
F77CPP=""
FFLAGS=" "
LDFLAGS=" -Wl,-Bsymbolic-functions -Wl,-z,relro "
LIBS="-lopa -lmpl  -lrt -lcr -lpthread  "
MPILIBNAME="mpich"
PMPILIBNAME="pmpich"
NEEDSPLIB="no"
#
# MPICH2_VERSION is the version of the MPICH2 library that mpif77 is intended for
MPICH2_VERSION="1.4.1"
#
# ----------------------------------------------------------------------------
# We also keep track of properties of the compilation system.  These
# are read by the top-level configure to initialize the Fortran types
# within the mpi.h file.
#
# MPI Types for the Fortran types
MPI_COMPLEX=1275070494
MPI_DOUBLE_COMPLEX=1275072546
MPI_LOGICAL=1275069469
MPI_REAL=1275069468
MPI_DOUBLE_PRECISION=1275070495
MPI_INTEGER=1275069467
MPI_2INTEGER=1275070496
MPI_2COMPLEX=1275072548
MPI_2DOUBLE_COMPLEX=1275076645
MPI_2REAL=1275070497
MPI_2DOUBLE_PRECISION=1275072547
MPI_CHARACTER=1275068698
# C type corresponding to a Fortran INTEGER
MPI_FINT=int
#
# Name mangling
F77_NAME_MANGLE=F77_NAME_LOWER_USCORE