| name | build |
| description | Build airspy-fmradion with CMake — full clean build, incremental rebuild, optimization flags, optional MP3 feature, and CMake-fetched dependencies. Use when compiling the project, editing CMakeLists.txt, or investigating build errors. |
Building airspy-fmradion
Full clean build
/bin/rm -rf build
mkdir build
git submodule update --init --recursive
cmake -S . -B build
cmake --build build --target all
Incremental build after changes
cmake --build build --target all
There are no automated tests; correctness is verified by running the binary
against an SDR device or file source.
Optimization constraints
Never add -ffast-math to OPTIMIZATION_FLAGS (see CLAUDE.md — it
silently breaks the multipath filter). The current flags are
-O3 -ftree-vectorize.
VOLK (libvolk) is used for vectorized float operations (e.g.,
volk_64f_convert_32f). Run volk_profile once after installation to
generate device-optimized kernel selection.
Build-time optional feature
MP3 output (-C flag / OutputMode::MP3_FMAUDIO) is conditionally compiled
only when libsndfile ≥ 1.1 is detected. The macro LIBSNDFILE_MP3_ENABLED
guards all related code.
External dependencies fetched by CMake
cmake-git-version-tracking (jj1bdx fork) — provides include/git.h with
git::CommitSHA1() etc.{fmt} — used throughout for all formatted output (fmt::print,
fmt::println)r8brain-free-src — git submodule at repo root, compiled as static libr8b
