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relibc_openlibm
Elliot Saba e2fc5dd2f8 Bump VERSION 8 vuotta sitten
amd64 ebcd40f1b0 Update remaining references to bsd_cdefs.h to cdefs-compat.h. 8 vuotta sitten
arm 388f0f1d32 Remove unused Symbol.map files. 10 vuotta sitten
bsdsrc 019990ecb7 WIP: Enable build on aarch64 9 vuotta sitten
i387 28fb939b0d Blanket rename DLLEXPORT->OLM_DLLEXPORT 9 vuotta sitten
include 5fd9dcbbdf Fix incorrect attribute as a result of blanket rename 8 vuotta sitten
ld128 28fb939b0d Blanket rename DLLEXPORT->OLM_DLLEXPORT 9 vuotta sitten
ld80 ebcd40f1b0 Update remaining references to bsd_cdefs.h to cdefs-compat.h. 8 vuotta sitten
powerpc 830dc991f3 Support powerpc 9 vuotta sitten
src 5fd9dcbbdf Fix incorrect attribute as a result of blanket rename 8 vuotta sitten
test 02e0bbc7c5 Revert "Add -fno-builtin to the tests as well." 9 vuotta sitten
.gitignore 0c307a220b add .pc to .gitignore 10 vuotta sitten
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.travis.sh 0aef1f7009 Clean up and test make clean 9 vuotta sitten
.travis.yml 5473e8b27d Disable OS X tests for now. 10 vuotta sitten
LICENSE.md e5c38c3e8b README and LICENSE updates. 10 vuotta sitten
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README.md f3d5009367 Fix #57 9 vuotta sitten
openlibm.pc.in 5b16546ddd Added pkg-config support 10 vuotta sitten

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.