cppfmtlib/fmt #4693Not a task: already works

fmt-c.h header is not installed

envgap__fmtlib__fmt-4693

Original GitHub issue ↗Dated source checkout ↗Opened 2026-03-02

01 / FAILURE SIGNATURE

As reported upstream

No identifying execution failure has been captured.

Not a benchmark task.

The project already builds and runs before the fix, so there is nothing to repair.

02 / ENVIRONMENT RECIPE

Base commit: e090e3ffad65dc5ea8654d4dad21239fc6ba56a6
Manifest: CMakeLists.txt
Reproduce: Awaiting issue-specific recipe
Run under trace: Awaiting a meaningful runtime command

03 / ORIGINAL ISSUE TEXT

fmtlib/fmt #4693 · read the original issue

Currently the `fmt-c.h` header will not be installed when running `cmake --install <BUILDDIR>`.

This means that the C API currently can not be used from an installed/packaged version of fmt, even if installing latest git master.

The reason is that the `fmt-c` CMake target is missing the `PUBLIC_HEADER` property.

Continue on GitHub ↗

04 / LABELS

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