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New instructions about how to build on OpenBSD

Maurizio Tomasi 9 years ago
parent
commit
3f0a53d69b
1 changed files with 5 additions and 1 deletions
  1. 5 1
      README.md

+ 5 - 1
README.md

@@ -14,7 +14,7 @@ consistently across compilers and operating systems, and in 32-bit and
 
 
 ## Platform support
 ## Platform support
 
 
-OpenLibm builds on Linux, Mac OS X, Windows, and FreeBSD. It builds
+OpenLibm builds on Linux, Mac OS X, Windows, FreeBSD, and OpenBSD. It builds
 with both GCC and clang. Although largely tested on x86, it also
 with both GCC and clang. Although largely tested on x86, it also
 includes experimental support for ARM.
 includes experimental support for ARM.
 
 
@@ -27,3 +27,7 @@ includes experimental support for ARM.
    and FreeBSD.
    and FreeBSD.
 4. Use `make ARCH=i386` to build for i386. Other supported architectures are
 4. Use `make ARCH=i386` to build for i386. Other supported architectures are
    i486, i586, i686, x86_64, and various arm architectures.
    i486, i586, i686, x86_64, and various arm 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`.