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| author | Marvin Scholz <epirat07@gmail.com> | 2024-09-11 23:09:34 +0200 |
|---|---|---|
| committer | Marvin Scholz <epirat07@gmail.com> | 2024-09-18 15:24:12 +0200 |
| commit | 910bf33879ecdf654cdc6342564f7791e34a27bc (patch) | |
| tree | 9988b9f4c556755f228a6e9f2912dcde4bf43f35 | |
| parent | 0c9fe2b232682b0ff21b15a721005d00dd9d3d37 (diff) | |
| download | ffmpeg-910bf33879ecdf654cdc6342564f7791e34a27bc.tar.gz | |
configure: fix symbol prefix detection
The symbol prefix check would incorrectly detect a bogus prefix in
circumstances where sanitizers instrument the build, like when
configuring with the clang-asan toolchain where it would detect the
prefix as __odr_asan_gen_, which is obviously wrong.
To fix this, adjust the prefix detection to only detect a
one-character prefix, which is the only case that matters
anywhere right now.
| -rwxr-xr-x | configure | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -6137,9 +6137,11 @@ enabled pic && enable_weak_pic test_cc <<EOF || die "Symbol mangling check failed." int ff_extern; EOF -sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }') +sym=$($nm $TMPO | awk '/[ \t]+[^ \t]{0,1}ff_extern$/{ print substr($0, match($0, /[^ \t]{0,1}ff_extern$/)) }') extern_prefix=${sym%%ff_extern*} +log "Symbol prefix detected as: '${extern_prefix}'" + ! disabled inline_asm && check_inline_asm inline_asm '"" ::' check_cc pragma_deprecated "" '_Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")' |