In the course of developing my XML parser hooks I've been using an
external XML parser (expat) which is built as a shared library. The
C functions I'm writing need to access functions within that library.
Is it OK just to link the .so of my backend function against the expat
library? i.e. to do
gcc -shared -lexpat -o pgxml.so pgxml.o
as the link stage (it seems to work fine) -or is there a portability
problem with this?
IF this is OK, would it be sensible to change the platform-specific
makefile %.so rule to allow the specification of extra instance specific
flags i.e. (example from Makefile.linux)
$(CC) -shared -o $@ $<
$(CC) -shared $(DLLINKFLAGS) -o $@ $<
or something similar, which would prevent me from having to override
the global rule and allow greater portability.
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