1$NetBSD: README,v 1.23 2023/07/16 18:09:54 palle Exp $ 2 3Special notes for cross-hosting a NetBSD build on certain platforms. 4Only those platforms which have been tested to complete a "build.sh" run 5are listed. 6 7All hosts must have a POSIX compatible sh. /bin/sh is assumed unless 8otherwise set. This can be overridden by setting HOST_SH in the environment. 9 10In addition all hosts must provide the following local tools: 11 gzip 12 gcc 13 g++ 14 zlib and headers (this requirement may be dropped in future) 15 16FreeBSD 17------- 18 19build.sh was recently tested on: 20* FreeBSD 13 (amd64, aarch64) 21* FreeBSD 12.2 (amd64, aarch64) 22* FreeBSD 11.4 (amd64) 23* FreeBSD 10.4 (amd64) 24 25Linux 26----- 27 28build.sh has been tested on: 29* Amazon Linux 2 (x86) 30* Debian 10 (x86, aarch64) 31* Red Hat Enterprise Linux 8 (x86, aarch64) 32* SUSE Enterprise Server 15 (x86) 33* Ubuntu Server 20.04 (x86, aarch64) 34* Ubuntu Server 18.04 (x86) 35 36* The gcc and g++ package must be installed, along with the typical system 37 development packages (glibc-devel, etc.). The g++ package is sometimes 38 called gcc-c++. 39 40* The ncurses-devel package must be installed (for nbinfo). 41 42* The zlib and zlib-devel packages must be installed (these are 43 called zlib1g and zlib1g-dev on Debian and Ubuntu Linux) 44 45* There is a known build problem on Linux/aarch64 with glibc <2.28 46 47macOS/Darwin 48------------ 49 50build.sh was recently tested on: 51* macOS Big Sur (x86) 52* macOS Catalina 53* macOS High Sierra 54 55with up to date Xcode command line tools and APFS filesystems. 56Previously, there have been issues building on case-insensitive 57HFS filesystems. build.sh is not working yet on M1-based Macs. 58 59HP-UX 60----- 61 62* zlib must be available. 63 64OpenBSD 65------- 66 67As of -current 20210629, ./build.sh will build src on OpenBSD 6.9 68for all platforms. 69 70Due to the default limits placed on user accounts, the host may experience 71memory exhaustion on builds requiring the LLVM RT library (including 72X on amd64, i386 and evbarm64-el) and for MIPS targets. 73 74This can be avoided by building as root (not ideal) or by asking your 75administrator to increase your limits in login.conf. These two variables 76seem to be sufficient: 77 :datasize=infinity:\ 78 :stacksize-cur=8M:\ 79 80NetBSD (earlier releases) 81------------------------- 82 83* Tested on NetBSD 1.5.2 (machine-independently). 84* Should need no special setup. 85* _NETBSD_SOURCE is *not* to be defined/pulled in during compat/tools builds. 86 compat_defs.h will error out if it finds it defined. 87 88Solaris 89------- 90 91(updated instruction for Solaris 11 further below) 92 93* Tested on Solaris/x86 8 (5.8) with gcc 2.95.2 and Solaris/sparc 8 (5.8) 94 with gcc 3.2 (not yet tested with SUNWspro). 95 96* $HOST_CC needs to be set properly (for gcc, it should be set to "gcc", 97 otherwise the improper /usr/ucb/cc may be invoked by accident). 98 99* The SUNWzlib package (or a built version of zlib visible to $HOST_CC, 100 such as SMCzlib from sunfreeware.com) must be installed. This will be 101 fixed in the future to include zlib in libnbcompat. 102 103* Needs the following paths, in this order, in $PATH: 104 105 /usr/xpg4/bin 106 /usr/ccs/bin 107 <path to host C and C++ compilers> 108 /usr/bin 109 110 /usr/ucb may optionally be placed before /usr/bin, per your preference, 111 but /usr/ucb *MUST NOT* be before /usr/ccs/bin or before the path to 112 the host C and C++ compilers. 113 114Solaris 11: 115 116* Solaris 11.3 117 * Set PATH to /usr/xpg6/bin:/usr/xpg4/bin:/usr/bin 118 * Set HOST_CC to /usr/bin/gcc 119 120* Solaris 11.4 (CBE) 121 * TBD 122 123* Solaris 11.4 (SRU57) 124 * POSIX.1-2008, SUSv4 (see standards(7)) 125 * Using gcc-12 126 * Set PATH to /usr/xpg7/bin:/usr/xpg6/bin:/usr/xpg4/bin:/usr/bin 127 * Set HOST_CC to /usr/bin/gcc 128 * Set HOST_SH to /usr/bin/bash 129