qmake win32 generators by default used values of DEFINES for RC
preprocessor defines, too. For simple defines this works. For
string literals this failed for the .vcxproj files:
DEFINES += "FOO=\"BAR BAR\"" works for CL but fails for RC.
DEFINES += "FOO=\\\"BAR BAR\\\"" works for RC but fails for CL.
This patch introduces the qmake variable RC_DEFINES. The variable
contains the preprocessor defines, that are used for RC. If the
varible is not set, the DEFINES values are used for RC.
Task-number: QTBUG-44184
Change-Id: I4202271759d29de8c1829347ae3ef117eda54b38
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
d83bd9c6f5