GoatTracker2 on macOS

#!/usr/bin/env bash# build_goattracker_macos.sh## Builds GoatTracker2 from source on macOS (Intel or Apple Silicon).# Works with both:#   - joelricci Silver Fork: https://github.com/joelricci/goattracker2#   - Upstream SVN trunk (2.77+): svn checkout https://svn.code.sf.net/p/goattracker2/code/## Tested: macOS 15 (Tahoe), Apple Silicon, sdl12-compat 1.2.74, Xcode CLT 17# Output: linux/goattrk2  (and companion tools gt2reloc, ins2snd2, sngspli2, mod2sng)## Prerequisites (handled automatically if missing):#   brew install sdl12-compat#   xcode-select --install## Usage: run from the repo root (where src/ lives, trunk/.../src/.. if from svn)#   chmod +x build_goattracker_macos.sh#   ./build_goattracker_macos.sh## Getting the code (there seem to be no recent git mirrors):#   svn checkout https://svn.code.sf.net/p/goattracker2/code/ goattracker2#set -euo pipefaildie() {  echo "✗ $*" >&2  exit 1}info() { echo "→ $*"; }# ── sanity: must be run from repo root ───────────────────────────────────────[[ -d src ]] || die "Run this from the repo root (no src/ dir found here)"# ── check required tools ─────────────────────────────────────────────────────for tool in brew cc make; do  command -v "$tool" &>/dev/null || die "Missing: $tool"done# ── ensure sdl12-compat is installed and sdl-config resolves to SDL 1.x ──────SDL_VER=$(sdl-config --version 2>/dev/null || echo "")if [[ "$SDL_VER" != 1.* ]]; then  info "SDL 1.x not found (got: '${SDL_VER:-nothing}'). Installing sdl12-compat..."  brew install sdl12-compat  BREW_PREFIX=$(brew --prefix)  export PATH="$BREW_PREFIX/bin:$PATH"  SDL_VER=$(sdl-config --version 2>/dev/null || echo "")  [[ "$SDL_VER" == 1.* ]] || die "sdl-config still not SDL 1.x after install — check your PATH"fiinfo "SDL version: $SDL_VER"SDL_CFLAGS=$(sdl-config --cflags)SDL_LIBS=$(sdl-config --libs)# Homebrew puts SDL headers at <prefix>/include/SDL/# sdl-config --cflags gives -I<prefix>/include/SDL  (resolves <SDL_foo.h>)# Upstream 2.77 source uses #include <SDL/SDL_foo.h>, needing one level up.# Adding both covers both fork variants.BREW_INC=$(brew --prefix)/includeEXTRA_INC="-I${BREW_INC}"# ── ensure output dir exists (makefile writes to ../linux/ relative to src/) ─mkdir -p linux# ── step 1: build bme host tools (datafile + dat2inc) ────────────────────────# Build-time utilities: datafile packs assets → goattrk2.dat,# dat2inc converts that → goatdata.c for inclusion in the main build.# Compiled directly rather than via bme/makefile to avoid GNU strip vs macOS strip issues.info "Building bme tools..."pushd src/bme >/dev/nullcc $SDL_CFLAGS $EXTRA_INC -o datafile datafile.c bme_end.ccc $SDL_CFLAGS $EXTRA_INC $SDL_LIBS -o dat2inc dat2inc.cpopd >/dev/nullinfo "bme tools OK"# ── step 2: build GoatTracker2 and companion utilities ───────────────────────# Pass EXTRA_INC through CFLAGS so all .c/.cpp files see <SDL/SDL_foo.h> correctly.# makefile.common appends to CFLAGS so prepending here is safe.# The ld alignment warnings are benign — old C common-block layout vs Apple linker.info "Building GoatTracker2..."pushd src >/dev/nullmake -f makefile CFLAGS="$EXTRA_INC -Ibme -Iasm -O3"popd >/dev/null# ── verify and report ─────────────────────────────────────────────────────────BINARY="linux/goattrk2"[[ -f "$BINARY" ]] || die "Expected binary not found at $BINARY — check output above"info "Build complete."echo ""echo "  Binary : $PWD/$BINARY"echo "  Run    : ./$BINARY"echo ""echo "  MacBook keyboard tip: hold FN for F1–F12, or enable function keys in"echo "  System Settings → Keyboard → 'Use F keys as standard function keys'."