https://github.com/vitalyisaev2/cgo_multiversion_go_lib

Go application compiled with multiple versions of C shared library
https://github.com/vitalyisaev2/cgo_multiversion_go_lib

Last synced: about 1 month ago
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Go application compiled with multiple versions of C shared library

• Host: GitHub
• URL: https://github.com/vitalyisaev2/cgo_multiversion_go_lib
• Owner: vitalyisaev2
• Created: 2019-10-08T11:17:28.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-10-08T12:15:31.000Z (over 5 years ago)
• Last Synced: 2024-06-19T15:04:22.922Z (7 months ago)
• Language: CMake
• Homepage:
• Size: 4.88 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
Build C libraries first (`gcc` and `cmake` are required):

```

./build.sh

...

-- Installing: /usr/local/lib/libcgomultiversion.so.1.0.0

-- Installing: /usr/local/lib/libcgomultiversion.so.1

-- Installing: /usr/local/lib/libcgomultiversion.so

-- Installing: /usr/local/include/cgomultiversion_v1/lib.h

...

-- Installing: /usr/local/lib/libcgomultiversion.so.2.0.0

-- Installing: /usr/local/lib/libcgomultiversion.so.2

-- Installing: /usr/local/lib/libcgomultiversion.so

-- Installing: /usr/local/include/cgomultiversion_v2/lib.h

```

Try to run tests, and you'll see the error: 

```

go test -count=1 -v        

# github.com/vitalyisaev2/cgo_multiversion_go_lib.test

/usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1

/usr/bin/ld: /tmp/go-link-218143790/000005.o: in function `add':

/home/isaev/go/src/github.com/vitalyisaev2/cgo_multiversion_go_lib/v2/lib.c:6: multiple definition of `add'; /tmp/go-link-218143790/000002.o:/home/isaev/go/src/github.com/vitalyisaev2/cgo_multiversion_go_lib/v1/lib.c:5: first defined here

collect2: error: ld returned 1 exit status

```

This code cannot be compiled with two different versions of C library because of name overlapping.