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Added a macOS-only Meson configure-time guard that checks for the exact mismatch you hit: -arch x86_64 in build flags while pkg-config resolves GLib from /opt/homebrew (ARM Homebrew). This now fails early with a clear actionable error instead of letting the build continue to a long linker failure.

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The new error message explicitly tells users to choose one consistent setup: native arm64 with /opt/homebrew, or Rosetta/x86_64 with an x86_64 dependency stack (typically /usr/local).
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deepend
2026-02-19 11:36:36 -07:00
parent 98208cbc44
commit 36c9504a4d
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42
osx/DEBUGGING.md
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@@ -130,6 +130,48 @@ meson compile -C build-macos-intel
If your dependency stack supports it, build universal (`arm64` + `x86_64`) and verify with `lipo -info`.
### Linker says `found architecture 'arm64', required architecture 'x86_64'`
If you see warnings like this during `meson compile`:
```text
ld: warning: ignoring file '/opt/homebrew/.../libgio-2.0.dylib': found architecture 'arm64', required architecture 'x86_64'
Undefined symbols for architecture x86_64: ...
```
your compile target architecture and dependency architecture do not match.
On Apple Silicon, this usually means you are trying to build `x86_64` while linking against ARM Homebrew libraries from `/opt/homebrew`.
Quick checks:
```bash
echo "$CFLAGS" "$LDFLAGS"
pkg-config --libs glib-2.0
lipo -info "$(brew --prefix glib)/lib/libglib-2.0.dylib"
```
Use one of these consistent setups:
- Native Apple Silicon build (`arm64`) with `/opt/homebrew` dependencies.
- Intel build (`x86_64`) with an x86_64 dependency stack (typically Homebrew under `/usr/local` run under Rosetta).
Example x86_64 setup on Apple Silicon:
```bash
# Open a Rosetta shell first (or prefix commands with `arch -x86_64`)
arch -x86_64 /bin/bash -lc '
export PATH="/usr/local/bin:$PATH"
export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig"
export CFLAGS="-arch x86_64"
export LDFLAGS="-arch x86_64"
meson setup build-macos-x86_64 --prefix="/usr/local"
meson compile -C build-macos-x86_64
'
```
If you do not specifically need Intel compatibility, remove any forced `-arch x86_64` flags and build native `arm64`.
Example with this repo's scripts:
```bash