How are you doing the compiling and linking? You'll need to specify both files, something like: gcc testpoint.c point.c. ... <看更多>

Read the FAQ first: https://github.com/edenhill/librdkafka/wiki/FAQ Description I would like to compile on another directory "producer_cpp" ... ... <看更多>

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C語言archive 明明有symbol卻link時出現unsolved Symbol錯誤 ... undefined reference to `test_liba' test.c:(.text+0xa): undefined reference to ... ... <看更多>

The cause seems to be that the Makefile in PostGIS-3.1.0 did not include the link options for custom a geos package. The problem is fixed by editing ... ... <看更多>