How do I get autotools to compile with the Intel compiler?

autotools autoconf automake

11,467

Solution 1

If you want to use a compiler other than gcc when you compile, pass 'CC=/path/to/compiler' as an argument to configure. (That is, run ./configure CC=/path. Do not use the form CC=/path ./configure.) If you want the default compiler to be something other than gcc, you can put

CC=${CC-/path/to/default/compiler}

in configure.ac before the invocation of AC_PROG_CC.

Solution 2

I would do this:

AC_PROG_CC([icc gcc])

This will look for the compilers in the order specified, unless overridden with an argument to ./configure

$ ./confgure CC=gcc

Solution 3

Usually you can just run

bash $ CC=icc ./configure

to use lcc, or any other compiler as the C compiler, provided the rest of the configure and build process doesn't use any gcc'ism.

11,467

Daisy Sophia Hollman

I have been involved in the ISO-C++ standard committee since 2016. He has been a part of a number of different papers in that time, including mdspan, atomic_ref, and—most prominently—executors and futures. Since finishing my Ph.D. in computational quantum chemistry at the University of Georgia in 2013, I have mostly worked on programming models for computational science, data science, and related fields. I joined Sandia National Labs in 2014 and have worked on several different programming models projects since then. I like to make computers do cool things. In addition to my work on C++, I like Python, Ruby, Markdown, Mathematica, and generally any other language that brings something interesting to the table.

Updated on June 04, 2022

Comments

Daisy Sophia Hollman almost 2 years

I want my code to compile with the Intel compiler(s) or with gcc/g++ depending on a configure argument. Is this possible? What do I need to put in my configure.ac and Makefile.am files to make this happen?
William Pursell over 14 years

It is better to use: $ ./configure CC=icc. If you pass CC as an argument to configure then re-configuring with config-status will work. If you set CC in the environment, then it will not.
William Pursell almost 8 years

This is not a good approach. Use AC_PROG_CC as advised by freedrull instead.