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relibc_openlibm
Jeremy Soller e2da0dafd3 Rename to OLM_LONG_DOUBLE 5 years ago
aarch64 c21453060d Cleanup `ARCH` handling, reorganize `AArch64` and `Make.inc`. 7 years ago
amd64 aeaf9cefa7 Fix undefined reference to __fpgetprec on i386 7 years ago
arm 388f0f1d32 Remove unused Symbol.map files. 9 years ago
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ld80 aeaf9cefa7 Fix undefined reference to __fpgetprec on i386 7 years ago
mips 4dcc76ed96 Using cdefs-compat.h and stdint.h instead <sys/types.h> 6 years ago
powerpc 830dc991f3 Support powerpc 8 years ago
s390 2a1e56858a s390(x) port 5 years ago
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LICENSE.md ce69bf1f32 Update references to JuliaLang to point to JuliaMath (#182) 5 years ago
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README.md

OpenLibm

Travis AppVeyor

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, OpenBSD, and DragonFly BSD. It builds with both GCC and clang. Although largely tested and widely used on the x86 and x86-64 architectures, OpenLibm also supports arm, aarch64, ppc64le, and mips.

Build instructions

  1. Use GNU Make to build OpenLibm. This is make on most systems, but gmake on BSDs.
  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, FreeBSD, and OpenBSD.
  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.

Acknowledgements

PowerPC support for openlibm was graciously sponsored by IBM.