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Fork of the OpenLibm math library with fx-9860G and fx-CG 50 support.
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Peter Colberg 57ed355361 Fix broken compilation with ARCH=i686 
`override CFLAGS_add` caused make to discard any further assignments.

This regression stems from commit ebe1db3ce4.
2016-06-23 23:32:31 -04:00
amd64 Update remaining references to bsd_cdefs.h to cdefs-compat.h. 2016-05-15 11:28:26 +02:00
arm Remove unused Symbol.map files. 2015-02-01 19:41:55 +05:30
bsdsrc WIP: Enable build on aarch64 2016-04-08 19:37:13 +02:00
i387 Blanket rename DLLEXPORT->OLM_DLLEXPORT 2016-03-13 21:07:55 -04:00
include Fix incorrect attribute as a result of blanket rename 2016-05-03 18:48:45 -04:00
ld80 Update remaining references to bsd_cdefs.h to cdefs-compat.h. 2016-05-15 11:28:26 +02:00
ld128 Blanket rename DLLEXPORT->OLM_DLLEXPORT 2016-03-13 21:07:55 -04:00
powerpc Support powerpc 2016-02-23 11:08:14 +00:00
src Fix incorrect attribute as a result of blanket rename 2016-05-03 18:48:45 -04:00
test Revert "Add -fno-builtin to the tests as well." 2016-03-02 23:34:32 +05:30
.gitignore add .pc to .gitignore 2014-06-20 10:08:16 -04:00
.mailmap Add mailmap 2012-08-24 20:53:18 +05:30
.travis.yml Use Travis build matrix to test different platforms 2016-06-23 23:32:31 -04:00
LICENSE.md README and LICENSE updates. 2014-12-05 00:44:29 +05:30
Make.inc Fix broken compilation with ARCH=i686 2016-06-23 23:32:31 -04:00
Makefile Version libopenlibm properly 2016-05-16 23:42:16 -07:00
openlibm.pc.in Added pkg-config support 2014-05-19 15:30:10 +01:00
README.md Fix #57 2016-03-03 14:53:33 +05:30

README.md

OpenLibm

Build Status

OpenLibm is an effort to have a high quality, portable, standalone C mathematical library (libm). It can be used standalone in applications and programming language implementations.

The project was born out of a need to have a good libm for the Julia programming langage that worked consistently across compilers and operating systems, and in 32-bit and 64-bit environments.

Platform support

OpenLibm builds on Linux, Mac OS X, Windows, FreeBSD, and OpenBSD. It builds with both GCC and clang. Although largely tested and widely used on x86 architectures, openlibm also supports ARM and powerPC.

Build instructions

  1. Use make to build OpenLibm.
  2. Use make USEGCC=1 to build with GCC. This is the default on Linux and Windows.
  3. Use make USECLANG=1 to build with clang. This is the default on OS X and FreeBSD.
  4. Architectures are auto-detected. Use make ARCH=i386 to force a 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.
  5. On OpenBSD, you need to install GNU Make (port name: gmake) and a recent version of gcc (tested: 4.9.2), as the default version provided by OpenBSD is too old (4.2.1). If you use OpenBSD's port system for this (port name: gcc), run make CC=egcc to force Make to use the newer gcc.

Acknowledgements

PowerPC support for openlibm was graciously sponsored by IBM.