src/gdb ChangeLog configure configure.ac pytho ...

[brobecke at sourceware dot org]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	brobecke@sourceware.org	2011-01-31 04:42:08

Modified files:
	gdb            : ChangeLog configure configure.ac 
	gdb/python     : python-config.py 

Log message:
	allow building GDB with Python support on MinGW
	
	This makes several adjustements to the configure python-config.py
	scripts to deal with the differences between a Unix install of Python
	and a Windows install of Python (as downloaded from the Python website).
	
	Differences:
	
	- The Python executable is directly in the python prefix directory
	as opposed to inside the bin/ subdirectory.
	
	- The name of the python library is does not have a dot in the version
	number: On Unix, we have libpython2.7, while on Windows, it's
	libpython27.  So the regexp extracting the python version from
	the Python lib filename had to be adjusted slightly.
	
	Also, the tests checking the name of the libpython had to be
	adjusted to allow for that.
	
	- There are no link options following the -lpython<version> switch
	on Windows, but the regexp extracting the python version was
	using it as a delimiter.  It had to be removed.
	
	- python-config.py does not work on Windows, mostly because
	some sysconfig variables are missing.  They are not necessary
	so the script was adapted to skip them if not defined.
	
	- The paths returned by python-config.py follow the Windows filename
	convention in terms of the directory separator, and this is causing
	trouble when the build environment is cygwin (while the compiler
	and Python are MinGW).  We could have fixed that in the configure
	script, but it felt simpler to do so in python-config.py
	
	gdb/ChangeLog:
	
	* configure.ac: Add handling of Python distribution on Windows.
	* python-config.py: If the LIBS, SYSLIBS, LIBPL and/or LINKFORSHARED
	sysconfig variables are not defined, then do not use them.
	On Windows, if LIBPL is not defined, then use prefix + '/libs'
	instead.  On Windows, return all paths using forward-slashes
	rather than backslashes.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.12521&r2=1.12522
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/configure.diff?cvsroot=src&r1=1.324&r2=1.325
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/configure.ac.diff?cvsroot=src&r1=1.139&r2=1.140
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/python/python-config.py.diff?cvsroot=src&r1=1.2&r2=1.3