May I install R2. 7. 0. What should I do if the following problem occurs?

May I install R2. 7. 0. What should I do if the following problem occurs?-General Linux technology-Linux technology and application information. The following is a detailed description. Checking build system type... i686-pc-linux-gnu
Checking host system type... i686-pc-linux-gnu
Loading site script './config. site'
Loading build specific script './config. site'
Checking for pwd.../bin/pwd
Checking whether builddir is srcdir... yes
Checking for working aclocal... found
Checking for working autoconf... found
Checking for working automake... found
Checking for working autoheader... found
Checking for gawk... gawk
Checking for grep that handles long lines and-e.../bin/grep
Checking for egrep.../bin/grep-E
Checking whether ln-s works... yes
Checking for bison... bison-y
Checking for ar... ar
Checking for a BSD-compatible install.../usr/bin/install-c
Checking for sed.../bin/sed
Checking for less.../usr/bin/less
Checking for perl.../usr/bin/perl
Checking whether perl version is at least 5.8.0... yes
Checking for dvips... no
Checking for tex... no
Checking for latex... no
Configure: WARNING: you cannot build DVI versions of the R manuals
Checking for makeindex... no
Checking for vertex tex... no
Checking for pdflatex... no
Configure: WARNING: you cannot build PDF versions of the R manuals
Checking for makeinfo.../usr/bin/makeinfo
Checking whether makeinfo version is at least 4. 7... yes
Checking for texi2dvi.../usr/bin/texi2dvi
Checking for unzip.../usr/bin/unzip
Checking for zip.../usr/bin/zip
Checking for gzip.../usr/bin/gzip
Checking for firefox.../usr/bin/firefox
Using default browser.../usr/bin/firefox
Checking for internal read... no
Checking for login read4... no
Checking for evince... no
Checking for xpdf... no
Checking for gv... no
Checking for gnome-gv... no
Checking for ggv... no
Checking for kghostview.../usr/bin/kghostview
Checking for pkg-config.../usr/bin/pkg-config
Checking for gcc... gcc
Checking for C compiler default output file name... a. out
Checking whether the C compiler works... yes
Checking whether we are cross compiling... no
Checking for suffix of executables...
Checking for suffix of object files... o
Checking whether we are using the gnu c compiler... yes
Checking whether gcc accepts-g... yes
Checking for gcc option to accept ISO c89... none needed
Checking how to run the C preprocessor... gcc-E
Checking whether gcc needs-traditional... no
Checking how to run the C preprocessor... gcc-E
Checking for gfortran... no
Checking for f95... no
Checking for fort... no
Checking for xlf95... no
Checking for ifort... no
Checking for ifc... no
Checking for efc... no
Checking for pgf95... no
Checking for lf95... no
Checking for gfortran... no
Checking for ftn... no
Checking for g95... no
Checking for f90... no
Checking for xlf90... no
Checking for pgf90... no
Checking for pghpf... no
Checking for epcf90... no
Checking for g77... no
Checking for f77... no
Checking for xlf... no
Checking for frt... no
Checking for pgf77... no
Checking for cf77... no
Checking for fort77... no
Checking for fl32... no
Checking for af77... no
Checking for fc... no
Configure: error: No F77 compiler found

I am a newbie to linux and use Hongqi 6. 0 desktop edition:
It seems that the lack of fortran 77 compiler has not been solved for a long time on the Internet. Could you please tell me what to do if I want to install this software? It is best to provide specific steps and methods, if you need to download the file, please provide a link and the file name to be downloaded. I have been surfing the internet for a long time today, and I do not know how to download the file or install it. Thank you, don't let my beginner's linux hobby disappear in the bud