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src/extra/pcre has been updated to PCRE 7.5 (bugfix release).
As Mac OS X 10.5.0x comes with incompatible /bin/sh shell, we force SHELL=/bin/bash (which is ok) in that case. [Only for 2.6.x: another solution is used in 2.7.0.]
Keyboard events in getGraphicsEvent() could cause stack imbalance errors. (PR#10453)
The graphics window placement parameters on the GUI preferences dialog were being ignored.