|
@@ -2,38 +2,34 @@
|
|
|
|
|
|
OpenLibm is an effort to have a high quality, portable, standalone
|
|
|
C mathematical library ([`libm`](http://en.wikipedia.org/wiki/libm)).
|
|
|
-It can be used standalone in applications
|
|
|
-and programming language implementations.
|
|
|
+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](http://www.julialang.org)
|
|
|
-that worked consistently across compilers and operating systems,
|
|
|
-and in 32-bit and 64-bit environments.
|
|
|
+The project was born out of a need to have a good `libm` for the
|
|
|
+[Julia programming langage](http://www.julialang.org) that worked
|
|
|
+consistently across compilers and operating systems, and in 32-bit and
|
|
|
+64-bit environments.
|
|
|
|
|
|
### History
|
|
|
|
|
|
-The OpenLibm code derives from the
|
|
|
-[FreeBSD msun](http://svnweb.freebsd.org/base/head/lib/msun/) implementation,
|
|
|
-which in turn derives from [FDLIBM 5.3](http://www.netlib.org/fdlibm/).
|
|
|
-As a result, it includes a number of fixes and updates to FDLIBM
|
|
|
-that have accumulated over the years in `msun`,
|
|
|
-and optimized versions of many functions.
|
|
|
+The OpenLibm code derives from the [FreeBSD
|
|
|
+msun](http://svnweb.freebsd.org/base/head/lib/msun/) implementation,
|
|
|
+which in turn derives from [FDLIBM
|
|
|
+5.3](http://www.netlib.org/fdlibm/). As a result, it includes a number
|
|
|
+of fixes and updates to FDLIBM that have accumulated over the years in
|
|
|
+`msun`, and optimized versions of many functions.
|
|
|
|
|
|
### Platform support
|
|
|
|
|
|
-OpenLibm builds on Linux, Mac OS X, and Windows,
|
|
|
-and with little effort, should build on FreeBSD as well.
|
|
|
-It builds with both GCC and clang.
|
|
|
-Although largely tested on x86,
|
|
|
-it also includes experimental support for ARM.
|
|
|
-The original `msun` also includes support for
|
|
|
-mips, sparc64, powerpc, ia64, and alpha.
|
|
|
-These are present in the OpenLibm source tree,
|
|
|
-but no attempt has been made to build any of these.
|
|
|
+OpenLibm builds on Linux, Mac OS X, and Windows, and with little
|
|
|
+effort, should build on FreeBSD as well. It builds with both GCC and
|
|
|
+clang. Although largely tested on x86, it also includes experimental
|
|
|
+support for ARM. The original `msun` also includes support for mips,
|
|
|
+sparc64, powerpc, ia64, and alpha. These are present in the OpenLibm
|
|
|
+source tree, but no attempt has been made to build any of these.
|
|
|
|
|
|
### Build instructions
|
|
|
|
|
|
-1. `make` or `make USEGCC=1` to build with GCC.
|
|
|
- This is the default on Linux and Windows.
|
|
|
-2. `make USECLANG=1` to build with clang.
|
|
|
- This is the default on OS X.
|
|
|
+1. `make` or `make USEGCC=1` to build with GCC. This is the default on
|
|
|
+ Linux and Windows.
|
|
|
+2. `make USECLANG=1` to build with clang. This is the default on OS X.
|