Dear Liu Guangping, > I konow i should not bother you.This is not your work. > However,i don't konw how to settle the problem as following: > > usr/lib/gcc/i486-linux-gnu/3.4.6/../../../../lib/libfrtbegin.a(frtbegin.o): > In function `main':(.text+0x35): undefined reference to `MAIN__'collect2: ld > returned 1 exit status > > when i compile the readgeneral.F. The error message indicates that the linker couldn't find the symbol MAIN__ when it tried to link the program together. What was the link command? You can try to find the symbol by using the nm(1) utility on the system libraries. For example nm -g /usr/lib/lib*.a | grep MAIN__ This might tell you how the link command must be modified in order to find the symbol. > Thank you very much! Hoping to hear from you soon. > Wish best regards! > Yours respectfully, > Liu Guangping > _________________________________________________________________ > MSN äæçïæææåçæèèïçéèééæã > http://cn.msn.com Regards, Steve Emmerson Ticket Details =================== Ticket ID: PPR-301422 Department: Support UDUNITS Priority: Normal Status: Closed
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