Linker error: Undefined symbols for architecture, problem with folly

[karol-bisztyga]

Hey! I'm having trouble with linking my "hello world" service. I built fbthrift successfully and I wanted to build a simple example.
Here are my files: https://github.com/karol-bisztyga/fbthrift-test
Files in gen-cpp2 are generated using thrift1 --gen mstch_cpp2 Example.thrift
When I try to build with build.sh I get following linker errors:

https://gist.github.com/karol-bisztyga/987fa29023395ef30c1bcc25f6c66bbb

I see that FLAGS_thrift_cpp2_protocol_reader_string_limit and thrift_cpp2_protocol_reader_container_limit are defined by using DECLARE_int32. Looks like folly's FOLLY_DECLARE_FLAG doesn't work.

This line

folly::f14::detail::F14LinkCheck<(folly::f14::detail::F14IntrinsicsMode)1>::check()

got me here, so maybe there are some flags that are set wrong. Any idea what that could be? Maybe I'm doing something wrong? I'm lost :(

I'm using mac os big sure 11.5.2
If you need any versions of the software, please, let me know.

[karol-bisztyga]

Hey!
Any ideas?
I'm including my dependencies' versions:

• bison: 3.7.6
• boost: 1_76
• cmake: 3.21.1
• flex: 2.6.4
• openssl: LibreSSL 2.8.3
• pthreads: ??
• zlib: 1.2.11
• fmt: 8.0.1
• gflags: 2.2.2
• glog: 0.5.0
• fizz: 2021.08.02.00_1
• folly: 2021.08.02.00_1
• wangle: 2021.08.02.00_1
• zstd: 1.5.0

[Revaj]

Most of these undefined references are from other fbthrift libs like libconcurrency.a and libtranport.a by example. These are also part of fbthrift, so you will need to target them too.

[karol-bisztyga]

@Revaj I added those libs and still get the same results
karol-bisztyga/fbthrift-test@710183c#diff-1e7de1ae2d059d21e1dd75d5812d5a34b0222cef273b7c3a2af62eb747f9d20aR62-R83

[Revaj]

@Revaj I added those libs and still get the same results
karol-bisztyga/fbthrift-test@710183c#diff-1e7de1ae2d059d21e1dd75d5812d5a34b0222cef273b7c3a2af62eb747f9d20aR62-R83

In your CmakeLists.txt, from 11-24 lines, are targeting only libasync.a, it needs to target the corresponding library like LIBTRANSPORT to transport.

Also, I found when I compiled your example, in target_link_libraries, it requires libthriftmetadata.a. After that, it should compile.