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Fix old LD linking issues (#6521)

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Co-authored-by: Anton Kochkov <anton.kochkov@gmail.com>
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NOT XVilka 2026-06-18 11:05:41 +08:00 committed by GitHub
parent 43cb43ed18
commit 5927b2f6dd
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meson.build
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@ -506,6 +506,32 @@ foreach it : ccs
add_project_link_arguments('-Wl,--allow-shlib-undefined', language: 'c', native: it_native)
endif
# Old GNU ld (binutils 2.22, shipped with Debian Wheezy) combined with the
# --as-needed flag that Meson passes by default drops shared libraries that
# are needed only indirectly -- through another shared library -- rather than
# directly by the linked object files. It then (defaulting to
# --no-copy-dt-needed-entries) also refuses to resolve the symbol through the
# dropped library's own DT_NEEDED entry. Linking the rizin tools against the
# rizin shared libraries therefore fails with:
# librz_main.so.0.9.0: undefined reference to symbol 'rz_buf_size'
# librz_util.so.0.9.0: could not read symbols: Invalid operation
# even though librz_util, which defines the symbol, is already on the link
# line. Disable --as-needed for these old linkers so the indirectly-needed
# libraries stay on the link line and resolve directly; newer linkers handle
# this correctly on their own and keep the optimisation.
if it_cc.get_linker_id() == 'ld.bfd'
ld_bin = find_program('ld', required: false, native: it_native)
if ld_bin.found()
ld_version_raw = run_command(ld_bin, '--version', check: false).stdout()
if ld_version_raw != ''
ld_version = ld_version_raw.split('\n')[0].split(' ')[-1].strip()
if ld_version.version_compare('<2.31')
add_project_link_arguments('-Wl,--no-as-needed', language: 'c', native: it_native)
endif
endif
endif
endif
if it_machine.system() == 'darwin'
# On older Mac OS X versions (at least Lion and older), environ is only available when compiling an executable,
# but we will use is primarily in shared libs. Unfortunately, it_cc.links() only checks for executable compiling,