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45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
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This is a list of questions and answers that I have collected from
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messages to my mailbox
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---------------------------------------------------------------------
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Q: Why isn't sigc++config.h installed with the rest of the headers?
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A: Traditionally include files that are dependent on the compiler
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or srchitecture belong under lib trees and not the include tree.
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This allows machines to share include directories on large multiuser
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systems.
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Examples:
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/usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.57/include
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/usr/lib/glib/include
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/usr/lib/qt/include
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To access that file you should include a -I PREFIX/lib/sigc++/include
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in your compiler switchs.
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This can be done for you automatically through the use of
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the sigc-config script.
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c++ myfile.cc `sigc-config --cflags --libs`
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Last, if you really don't like this just symlink the file into
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PREFIX/include. (Don't copy or the next version of libsigc++
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very likely won't work right!)
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Q: Why on Visual C++ can do I get piles of errors when trying to
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use classes which contain Signals?
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A: Visual C++ requires all classes which are parameterized to be
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explicitely exported. This is the same problem encountered
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when using STL classes in VC++. Microsoft Knowledge Base
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article Q168958 contains the solution.
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(http://support.microsoft.com/support/kb/articles/Q168/9/58.ASP)
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You will need to create an export file with all the signals,
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slots, and parameterized functions explicitely instantiated
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and include it in your library source. (Anyone have an example
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of this?)
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