julia

5900a4cf - build: Compress debug sections of bundled libraries on install (#63687)

build: Compress debug sections of bundled libraries on install (#63687) Bundled third-party libraries, such as libstdc++ and libgfortran from CompilerSupportLibraries, ship with uncompressed debug info that #63640 does not reach, since it only applies to libraries Julia links itself. `make install` now compresses them with `COMPRESS_DEBUG_SECTIONS`. On the x86_64 nightly this shrinks `lib/julia` by 21 MiB with zlib. The system image is skipped, since symbolizing any frame in it would decompress all of its debug info. The first time a frame in one of these libraries is symbolized, its debug info is decompressed and kept for the session: 17 MiB and 46 ms for libstdc++, 8 MiB for libgfortran. Ordinary Julia backtraces don't contain such frames, so this mostly affects profiles that include C frames and crash backtraces.