Linking is not working correctly

[hanusek]

I try to build my example:

$ cargo zigbuild --target armv7-unknown-linux-gnueabihf.2.33  --release

If I check it:

$ readelf -s ./target/armv7-unknown-linux-gnueabihf/release/example  | grep GLIBC_2.34
    11: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
    15: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
    47: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
    49: 00000000     0 FUNC    GLOBAL DEFAULT  UND _[...]@GLIBC_2.34 (3)
    50: 00000000     0 FUNC    WEAK   DEFAULT  UND _[...]@GLIBC_2.34 (3)
    61: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
    70: 00000000     0 FUNC    GLOBAL DEFAULT  UND dlsym@GLIBC_2.34 (3)
    83: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
    84: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
    92: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
   103: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
   111: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
   114: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
   132: 00000000     0 FUNC    GLOBAL DEFAULT  UND p[...]@GLIBC_2.34 (3)
 43271: 00000000     0 FUNC    GLOBAL DEFAULT  UND dlsym@GLIBC_2.34

I have GLIBC_2.34 instead of GLIBC_2.33.

[polarathene]

This has been covered in the README, are you sure you're not doing a static build or any other known condition that would fail? You should provide more details for reproducing.

If you think it is related due to the different target platform, try confirm that you get expected behaviour when building for your native target.

Further details on linking behaviour is covered thoroughly here (which is where the related README content was derived from):

• docs: Add caveats for glibc version targeting feature #232 (comment)
• cargo zigbuild doesn't support static glibc builds with an explicit --target #231 (comment)