undefined reference to `FcCharSetDestroy'

[samoylovfp]

Following https://wezfurlong.org/wezterm/install/source.html

When running cargo build on Ubuntu 20.04.2 with libfontconfig1:amd64 2.13.1-2ubuntu3 installed, I get

linking with cc failed: exit code: 1

And a bunch of messages about missing symbols, all seems to be related to libfontconfig.

An example of a symbol not found is

  = note: /usr/bin/ld: /home/filipp/dev/rust/wezterm/target/release/deps/libwezterm_font-d3305053db8685c6.rlib(wezterm_font-d3305053db8685c6.wezterm_font.etau9il0-cgu.2.rcgu.o): in function `_ZN4core3ptr50drop_in_place$LT$wezterm_font..fcwrap..Pattern$GT$17h03bb325c682d82a9E.llvm.1317379413201937123':
          wezterm_font.etau9il0-cgu.2:(.text._ZN4core3ptr50drop_in_place$LT$wezterm_font..fcwrap..Pattern$GT$17h03bb325c682d82a9E.llvm.1317379413201937123+0x5): undefined reference to `FcPatternDestroy'

Which version of libfontconfig am I supposed to have installed for link to succeed?

[samoylovfp]

Huh I tried to reproduce it in an isolated environment and the build succeeded. Maybe something is messed up in my system. Investigating...

FROM ubuntu:20.04
RUN apt-get update
RUN apt-get install git curl -y
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs > rustup.sh
RUN sh ./rustup.sh -y
ENV PATH=$PATH:/root/.cargo/bin

RUN git clone --depth=1 --branch=main --recursive https://github.com/wez/wezterm.git
WORKDIR wezterm
RUN git submodule update --init --recursive
RUN DEBIAN_FRONTEND="noninteractive" ./get-deps
RUN cargo build --release

[samoylovfp]

Ah looks like just a broken build cache. cargo clean && cargo build --release fixed it