I wanted to build R from source on macos (10.15.5) so I could include
Intel's MKL. So I first looked at building R from source without MKL.
>From the installation doc, I modified config.site to have the following:
CC=clang
OBJC=$CC
FC=/usr/local/bin/gfortran
CXX=clang++
I then ran configuration via the command:
./configure -C --enable-R-shlib --enable-memory-profiling
--x-includes=/opt/X11/include --x-libraries=/opt/X11/lib
PKG_CONFIG_PATH=/opt/X11/lib/pkgconfig:/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
And received the following information and error:
checking if bzip2 version >= 1.0.6... no
checking whether bzip2 support suffices... configure: error: bzip2 library
and headers are required
By looking at the log, I saw a compiler error due to an implicit function.
I then made the following change in config.site:
CFLAGS='-Wno-implicit-function-declaration -g -O2''
And configure now ran without errors.
However, when I looked at configuring to use MKL, I discovered that MKL on
macos does not support gnu fortran so, unless I purchase Intel's Fortran
compiler, it looks like I'm sol.
Has anyone built R with MKL on macos (10.15)? In any event, I wanted to at
least note the issue and work around I encountered when building R on
macos with clang/xcode.
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