0418324ca4
On x86_64, openlibm_fenv.h is silently coupled to openlibm_complex.h due to the inclusion of math_private.h inside of openlibm_fenv_amd64.h. The math_private.h header was included to gain access to the OLM_DLLEXPORT macro. However, this macro is redefined, since it is originally defined in openlibm_math.h. This inclusion also exposes math_private.h to public clients, which is undesirable. Instead, a standalone header is created to contain the OLM_DLLEXPORT definition. This header is used included in the appropriate files. openlibm_fenv_amd64.h is no longer coupled to math_private.h. |
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| .github | ||
| aarch64 | ||
| amd64 | ||
| arm | ||
| bsdsrc | ||
| docs | ||
| i387 | ||
| include | ||
| ld80 | ||
| ld128 | ||
| mips | ||
| powerpc | ||
| s390 | ||
| src | ||
| test | ||
| wasm32 | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| LICENSE.md | ||
| Make.inc | ||
| Makefile | ||
| README.md | ||
| appveyor.yml | ||
| openlibm.pc.in | ||
README.md
OpenLibm
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, macOS, Windows, FreeBSD, OpenBSD, NetBSD, 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, mips, wasm32, and s390(x).
Build instructions
- Use GNU Make to build OpenLibm. This is
makeon most systems, butgmakeon BSDs. - Use
make USEGCC=1to build with GCC. This is the default on Linux and Windows. - Use
make USECLANG=1to build with clang. This is the default on OS X, FreeBSD, and OpenBSD. - Use
make ARCH=wasm32to build the wasm32 library with clang. Requires clang-8. - Architectures are auto-detected. Use
make ARCH=i386to 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.