> for the brave: librsvg-2.45.7 works fine for me for some time now. If
> compiled with rustc-1.35. But trying to compile it with rustc-1.36
> (get it from https://fossies.org/linux/misc/rustc-1.36.0-src.tar.xz)
> fails. A pretty late linking error - missing symbol deep down in what
> seems to be either llvm or gcc related. I suspected my shiny new
> (multilib) system to be severly broken in that regard, but couldn't find
> any cause for *many* hours.
>
> So I switched back to the old system and building librsvg-2.45.7 failed
> too. WTF? It didn't a few days ago. Pretty much the only change inbetween
> on that system was rustc-1.35 -> rustc-1.36. Bad idea. Reverting back to
> rustc-1.35 and librsvg-2.45.7 compiles and works as it used to on
> both systems.
Actually, the culprit seems to be the librsvg-2.45.7 distro: in
Makefile.in I find:
----8<----
LIBRSVG_BUILD_DIR=$(LIBRSVG_BUILD_DIR)
\
LIBRSVG_TARGET_DIR=$(LIBRSVG_TARGET_DIR)
\
$(CARGO) --locked build $(CARGO_VERBOSE) $(CARGO_TARGET_ARGS)
$(CARGO_RELEASE_ARGS) --features "c-library" \
&& $(AR) d $(RUST_LIB) clzsi2.o # HACK:
https://github.com/rust-lang/rust/issues/58277
---->8----
That hack is only needed for rust < 1.36, as said in [1] and [2]; it
will crash the build with rust>=1.36
Makefile.in has been fixed for this problem upstream in git [2]
For 2.45.7, the following workaround fixes the build with rust-1.36 for me:
----8<----
diff -c ./Makefile.in.FIX_CLZSI2 ./Makefile.in
*** ./Makefile.in.FIX_CLZSI2 Wed Jul 17 15:58:53 2019
--- ./Makefile.in Wed Jul 17 15:58:53 2019
***************
*** 1750,1756 ****
LIBRSVG_BUILD_DIR=$(LIBRSVG_BUILD_DIR)
\
LIBRSVG_TARGET_DIR=$(LIBRSVG_TARGET_DIR)
\
$(CARGO) --locked build $(CARGO_VERBOSE) $(CARGO_TARGET_ARGS)
$(CARGO_RELEASE_ARGS) --features "c-library" \
- && $(AR) d $(RUST_LIB) clzsi2.o # HACK:
https://github.com/rust-lang/rust/issues/58277
@HAVE_INTROSPECTION_TRUE@-include $(INTROSPECTION_MAKEFILE)
--- 1750,1755 ----
---->8----
[1] https://github.com/rust-lang/rust/issues/58277
[2]
https://github.com/GNOME/librsvg/commit/449fdccaffd316eddb394589008310c327eb31bb
>
> Why does dealing with rustc stuff always feel like wasting time to me??
>
agreed
ciao
gabriele
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