Hi, I installed gsl (gsl-1.16.tar.gz) via ./configure, make, make check and sudo make install. gsl-config --version shows: $ gsl-config --version 1.16 I then wanted to install the R package "gsl" from source:
install.packages("gsl", type="source")
Installing package into '/usr/local/R/library' (as 'lib' is unspecified) trying URL 'http://cran.r-project.org/src/contrib/gsl_1.9-10.tar.gz' Content type 'application/x-gzip' length 342803 bytes (334 KB) ================================================== downloaded 334 KB * installing *source* package 'gsl' ... ** package 'gsl' successfully unpacked and MD5 sums checked checking for gsl-config... /usr/local/bin/gsl-config checking if GSL version >= 1.12... 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 configure: error: Need GSL version >= 1.12 ERROR: configuration failed for package 'gsl' What fails? I did the exact same thing an another MacBook Pro a couple of months ago and it worked there (also under OS X 10.11)... this is strange. I found https://stackoverflow.com/questions/24781125/installing-r-gsl-package-on-mac#_=_ which goes further back but addresses more or less the same problem. I don't understand the answer there: Do I have to set the flags CFLAGS and LDFLAGS when configuring gsl? Cheers, Marius