[Bug 233769] Possible build race: ld: error: unable to find library -lgcc_s

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233769

--- Comment #8 from Mark Millard <marklmi26-fbsd at yahoo.com> ---
(In reply to Mark Millard from comment #7)

And, finally what I should have looked for in the overall
logs, using a aarch64 build this time (no lib32):

# egrep '(libgcc_s\.so|libgcc_s.*_libinstall)'
~/sys_typescripts/typescript_make_cortexA72_nodebug_clang_bootstrap-amd64-host-2019-03-26:01:34:22
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_s/libgcc_s.so.1.full
--- libgcc_s.so.1.full ---
building shared library libgcc_s.so.1
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_s/libgcc_s.so.1.debug
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_s/libgcc_s.so.1
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_s/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_s/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_s/_libinstall

So 3 _libinstall 's for libgcc_s .

Looking at other things in the build there are a lot of pairs of _libinstall 's
and libgcc_eh has 3:

FBSDFSSD# egrep '/_libinstall'
~/sys_typescripts/typescript_make_cortexA72_nodebug_clang_bootstrap-amd64-host-2019-03-26:01:34:22
| sort | more
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libavl/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libavl/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libctf/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libctf/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libdtrace/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libnvpair/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/cddl/lib/libnvpair/_libinstall
. . .
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_eh/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_eh/_libinstall
Building
/usr/obj/cortexA72_clang/arm64.aarch64/usr/src/arm64.aarch64/lib/libgcc_eh/_libinstall
. .  .

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