279829 - Make windows build less dependent on cygwin-wrapper

Status: RESOLVED WONTFIX

(Firefox Build System :: General, enhancement)

Description

[[e-mail]]

My tests may be a bit limited because they all used the mingw compiler, so I was
able to build under $HOME and such, which is not normally possible on Windows.

I patched the cygwin-wrapper to compare the input and output and log the
differences to a file. I added an ifndef GNU_CC to rules.mk to stop it
converting _VPATH_SRCS to an absolute path. I built Mozilla and noticed that
only a few of the calls used absolute paths (mostly NSPR's path to dist).

I then patched configure to remove all the lines setting CYGWIN_WRAPPER and
created an objdir build in a new tree by using mk_add_options
MOZ_OBJDIR=../objdir --with-srcdir=../mozilla which ran to completion.

Comment 1

[[e-mail]]

The following changes make windows builds less dependent on the cygwin wrapper:
* In mozilla/client.mk, remove the forced absolute path to configure
This change makes srcdir builds relative by default.
* In mozilla/configure.in, remove the references to the cygwin wrapper
This change applies to mingw, srcdir or relative --enable-srcdir builds.
* In mozilla/config/config.mk, remove the references to the cygwin wrapper
* In mozilla/config/rules.mk, remove the forced absolute path to _VPATH_SRCS
This change applies to srcdir or relative --enable-srcdir builds.
I use a mingw objdir build with relative srcdir and a msvc srcdir build.

Comment 2

[cls]

The absolute path is required to have MSVC debug info.  See bug 141834.  

If you don't want to use the cygwin-wrapper, use msys instead of cygwin.