Hi there!
This is really odd that I rename a dependent library in cgo import, and rebuild it with go build the fact is that the packaged still imports the old library (with the old name) .
Here is part of the code on importing C libraries:
/*
#cgo CFLAGS: -I.
#cgo LDFLAGS: -L . -lmarket65 -lthostmduserapi_se
#include "dll.h"
*/
import "C"
the lmarket65 used to have the name lmarket_n, I have copied libmarket_n.so in default shared library directory /usr/lib/ to libmarket65.so .
Then I used command:
go clean -cache
go build
And come up with the new TestMarket executable by go.
Then just probe what libraries it calles:
~/src/TestMarket$ ldd TestMarket
linux-vdso.so.1 (0x00007fff924e2000)
libmarket_n.so => /usr/lib/libmarket_n.so (0x00007ffb92a1e000)
libthostmduserapi_se.so => /usr/lib/libthostmduserapi_se.so (0x00007ffb9210f000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007ffb920ec000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ffb91efa000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007ffb91d19000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007ffb91cfe000)
/lib64/ld-linux-x86-64.so.2 (0x00007ffb92af1000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007ffb91cf1000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007ffb91ceb000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007ffb91b9c000)
See, it does not depend on the new library libmarket65.so but on the old libmarket_n.so where the nowhere in go files referenced!