Hi, I have Linux Fedora 32 bit with 512 RAM I would like to use Rgraphviz package.so, I did: $ [root@localhost packages]# rpm -i graphviz-1.12-1.i386.rpm package graphviz-1.12-1 is already installed [root@localhost packages]# R CMD INSTALL -l /usr/local/lib/R/library Rgraphviz_1.4.0.tar.gz --------------------------------------------- * Installing *source* package 'Rgraphviz' ... ** libs gcc -I/usr/local/lib/R/include `dotneato-config --cflags` -I/usr/local/include -D__NO_MATH_INLINES -mieee-fp -Wall -fPIC -g -O2 -c Rgraphviz.c -o Rgraphviz.o In file included from /usr/local/include/graphviz/render.h:45, from common.h:21, from Rgraphviz.c:1: /usr/local/include/graphviz/macros.h:34:1: warning: "NEW" redefined In file included from common.h:13, from Rgraphviz.c:1: /usr/local/lib/R/include/Rdefines.h:129:1: warning: this is the location of the previous definition Rgraphviz.c: In function `Rgraphviz_agopen': Rgraphviz.c:244: warning: implicit declaration of function `GD_gvc' Rgraphviz.c:244: error: invalid lvalue in assignment make: *** [Rgraphviz.o] Error 1 ERROR: compilation failed for package 'Rgraphviz' ** Removing '/usr/local/lib/R/library/Rgraphviz' ----------------------------------------------------- anyone has this before....? thanks, Saurin