2015-02-01 14:36:16 +01:00
|
|
|
# OpenLibm
|
2012-08-19 08:22:43 +02:00
|
|
|
|
2018-06-18 23:48:23 +02:00
|
|
|
[](https://travis-ci.org/JuliaMath/openlibm)
|
|
|
|
|
[](https://ci.appveyor.com/project/ararslan/openlibm-19152/branch/master)
|
2015-01-05 19:18:29 +01:00
|
|
|
|
2019-08-11 14:47:20 +02:00
|
|
|
[OpenLibm](https://openlibm.org/) is an effort to have a high quality, portable, standalone
|
2014-06-20 20:09:44 +02:00
|
|
|
C mathematical library ([`libm`](http://en.wikipedia.org/wiki/libm)).
|
2014-06-22 13:46:23 +02:00
|
|
|
It can be used standalone in applications and programming language
|
2014-12-04 20:14:29 +01:00
|
|
|
implementations.
|
2011-12-31 08:18:43 +01:00
|
|
|
|
2014-06-22 13:46:23 +02:00
|
|
|
The project was born out of a need to have a good `libm` for the
|
2020-03-31 12:37:11 +02:00
|
|
|
[Julia programming language](http://www.julialang.org) that worked
|
2014-06-22 13:46:23 +02:00
|
|
|
consistently across compilers and operating systems, and in 32-bit and
|
|
|
|
|
64-bit environments.
|
2012-01-06 05:35:01 +01:00
|
|
|
|
2015-02-01 14:36:16 +01:00
|
|
|
## Platform support
|
2012-07-03 17:30:34 +02:00
|
|
|
|
2019-12-10 03:38:44 +01:00
|
|
|
OpenLibm builds on Linux, macOS, Windows, FreeBSD, OpenBSD, NetBSD, and
|
2018-06-19 00:13:49 +02:00
|
|
|
DragonFly BSD. It builds with both GCC and clang. Although largely
|
|
|
|
|
tested and widely used on the x86 and x86-64 architectures, OpenLibm
|
2019-12-10 03:38:44 +01:00
|
|
|
also supports arm, aarch64, ppc64le, mips, wasm32, and s390(x).
|
2012-07-03 17:30:34 +02:00
|
|
|
|
2015-02-01 14:36:16 +01:00
|
|
|
## Build instructions
|
2014-06-12 09:22:21 +02:00
|
|
|
|
2018-04-06 23:04:45 +02:00
|
|
|
1. Use GNU Make to build OpenLibm. This is `make` on most systems, but `gmake` on BSDs.
|
2015-02-01 14:38:33 +01:00
|
|
|
2. Use `make USEGCC=1` to build with GCC. This is the default on
|
2014-12-04 20:14:29 +01:00
|
|
|
Linux and Windows.
|
2018-04-06 23:04:45 +02:00
|
|
|
3. Use `make USECLANG=1` to build with clang. This is the default on OS X, FreeBSD,
|
|
|
|
|
and OpenBSD.
|
2019-04-15 00:11:03 +02:00
|
|
|
4. Use `make ARCH=wasm32` to build the wasm32 library with clang. Requires clang-8.
|
|
|
|
|
5. Architectures are auto-detected. Use `make ARCH=i386` to force a
|
2016-03-03 10:23:33 +01:00
|
|
|
build for i386. Other supported architectures are i486, i586, and
|
|
|
|
|
i686. GCC 4.8 is the minimum requirement for correct codegen on
|
|
|
|
|
older 32-bit architectures.
|
2016-02-27 08:24:11 +01:00
|
|
|
|
|
|
|
|
## Acknowledgements
|
|
|
|
|
|
|
|
|
|
PowerPC support for openlibm was graciously sponsored by IBM.
|
