From 5f3774cd656ba54200cb192fc1454c5232347b70 Mon Sep 17 00:00:00 2001 From: Ray Donnelly Date: Thu, 5 Nov 2015 06:44:43 +0000 Subject: Cygwin: Add documentation There's a lot that can go wrong if you stray from the path. Signed-off-by: Ray Donnelly diff --git a/docs/C - Misc. tutorials.txt b/docs/C - Misc. tutorials.txt old mode 100644 new mode 100755 index 0a827d2..34f485b --- a/docs/C - Misc. tutorials.txt +++ b/docs/C - Misc. tutorials.txt @@ -313,3 +313,49 @@ Here is an example commit message (see revision 8bb5151c5b01): I missed refreshing the patch before pushing. :-( Signed-off-by: "Yann E. MORIN" + +Using crosstool-NG on Windows | +------------------------------+ + +Contributed by: Ray Donnelly + +Prerequisites and instructions for using crosstool-NG for building a cross +toolchain on Windows (Cygwin) as build and, optionally Windows (hereafter) +MinGW-w64 as host. + +0. Use Cygwin64 if you can. DLL base-address problems are lessened that + way and if you bought a 64-bit CPU, you may as well use it. + +1. You must enable Case Sensitivity in the Windows Kernel (this is only really + necessary for Linux targets, but at present, crosstool-ng refuses to operate + on case insensitive filesystems). The registry key for this is: + HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\kernel\obcaseinsensitive + Read more at: + https://cygwin.com/cygwin-ug-net/using-specialnames.html + +2. Using setup{,-x86_64}.exe, install the default packages and also the + following ones: (tested versions in brackets, please test newer versions + and report successes via pull requests changing this list and failures to: + https://github.com/crosstool-ng/crosstool-ng/issues + autoconf (13-1), make (4.1-1), gcc-g++ (4.9.3-1), gperf (3.0.4-2), + bison (3.0.4-1), flex (2.5.39-1), texinfo (6.0-1), wget (1.16.3-1), + patch (2.7.4-1), libtool (2.4.6-2), automake (9-1), diffutils (3.3-3), + libncurses-devel (6.0-1.20151017), help2man (1.44.1-1) + mingw64-i686-gcc-g++* (4.9.2-2), mingw64-x86_64-gcc-g++* (4.9.2-2) + Leave "Select required packages (RECOMMENDED)" ticked. + Notes: + 2.1 The packages marked with * are only needed if your host is MinGW-w64. + 2.2 Unfortunately, wget pulls in an awful lot of dependencies, including + Python 2.7, Ruby, glib and Tcl. + +3. Although nativestrict symlinks seem like the best idea, extracting glibc fails + when they are enabled, so just don't set anything here. If your host is MinGW-w64 + then these 'Cygwin-special' symlinks won't work, but you can dereference them by + using tar options --dereference and --hard-dereference when making a final tarball. + I plan to investigate and fix or at least work around the extraction problem. + Read more at: + https://cygwin.com/cygwin-ug-net/using-cygwinenv.html + +4. collect2.exe will attempt to run ld which is a shell script that runs either + ld.exe or gold.exe so you need to make sure that a working shell is in your path. + Eventually I will replace this with a native program for MinGW-w64 host. -- cgit v0.10.2-6-g49f6