OSX - unwind_resume link error

[kyngchaos]

When compiling pgrouting on OSX 10.4 (Xcode 2.4), there is a missing symbol error for unwind_resume. This is a common problem on OSX with Xcode 2.2+ when linking C++ software with gcc instead of g++ (there was a similar problem in MapServer). Linking -lsdtc++ is not enough, and using g++ is needed.

This one is tricky to handle in Postgres, since the link command is set by the Postgres pgxs. I was able to get around it by adding this line after the include $(PGXS) line in the makefile (mirroring what is set in pgxs.mk for Darwin):

LINK.shared = g++ -bundle -multiply_defined suppress

and removing -lstdc++ from SHLIB_LINK.

I don't know how else to handle this (I tend to do brute-force hacks). The change happened in Xcode 2.2, though the GC version did not change (4.0.1 I think).

[anton]

We never tried to compile it for OSX, because we think that it is not usual server platform. But well, we will try to do it and find a solution until the final release of version 1.1.

[anton]

Invalid since new cmake build process.