This is the main repository part of the "Enable OpenJDK builds on Windows with MinGW/MSYS" patch. It only updates the README-builds.html file with some MinGW/MSYS related information and consolidates the documentation of the Cygwin make to reflect the issues with the latest Cygwin release.

For this change I also built on Solaris to prevent regressions and found that the file Xrender.h was installed under /usr/openwin/share/include/X11/extensions/Xrender.h by default so I also updated this information in the Solaris build section in the readme file.

I tested full OpenJDK 8 product and debug builds on Windows with MKS, Cygwin and MinGW/MSYS. To avoid regressions I also did product and debug builds on Solaris10/amd64 without any problems.

Below you can find some timing results for the different build environments (MKS ver. 9.4, Cygwin ver. 1.7.9, MinGW/MSYS 1.0.17) for a full JDK 8 product build on a freshly booted, dual core i7 notebook with 8GB RAM, HDD and 64-bit Windows 7:

MKS

-- Build times ----------
Target all_product_build
Start 2012-02-29 19:19:26
End   2012-02-29 20:07:44
00:03:10 corba
00:03:44 hotspot
00:00:30 jaxp
00:00:37 jaxws
00:39:39 jdk
00:00:36 langtools
00:48:18 TOTAL
-------------------------

MinGW/MSYS

-- Build times ----------
Target all_product_build
Start 2012-02-29 18:16:31
End   2012-02-29 19:10:59
00:02:57 corba
00:03:04 hotspot
00:00:32 jaxp
00:00:40 jaxws
00:46:36 jdk
00:00:36 langtools
00:54:28 TOTAL
-------------------------

Cygwin

-- Build times ----------
Target all_product_build
Start 2012-02-29 14:36:50
End   2012-02-29 16:05:50
00:05:47 corba
00:03:24 hotspot
00:00:33 jaxp
00:00:43 jaxws
01:17:45 jdk
00:00:39 langtools
01:29:00 TOTAL
-------------------------