configure.win

#!/usr/bin/env sh
# Minimal configure.win to detect libcurl for optional HTTP VFS (best-effort)

set -e

CURL_CFLAGS=""
CURL_LIBS=""

update_makevars_var() {
  var="$1"
  val="$2"
  file="src/Makevars.local"
  tmp="${file}.tmp"

  if [ ! -f "$file" ]; then
    : > "$file"
  fi

  awk -v var="$var" -v val="$val" '
    BEGIN{done=0}
    $0 ~ ("^" var "=") {
      if(!done){ print var "=" val; done=1 }
      next
    }
    { print }
    END{ if(!done) print var "=" val }
  ' "$file" > "$tmp"
  mv "$tmp" "$file"
}

# Try pkg-config first (msys2 environments)
if command -v pkg-config >/dev/null 2>&1; then
  if pkg-config --exists libcurl; then
    CURL_CFLAGS="$(pkg-config --cflags libcurl)"
    CURL_LIBS="$(pkg-config --libs libcurl)"
  fi
fi

# Fallback: curl-config if available
if [ -z "$CURL_LIBS" ] && command -v curl-config >/dev/null 2>&1; then
  CURL_CFLAGS="$(curl-config --cflags 2>/dev/null || true)"
  CURL_LIBS="$(curl-config --libs 2>/dev/null || true)"
fi

dedup_libs() {
  out=""
  for tok in $1; do
    case " $out " in
      *" $tok "*) ;;
      *) out="$out $tok" ;;
    esac
  done
  echo "$out" | sed -e 's/^ *//' -e 's/  */ /g'
}

if [ -n "$CURL_LIBS" ] && [ -f "src/vendor/extensions/http.c" ]; then
  CURL_LIBS_DEDUP=$(dedup_libs "$CURL_LIBS")
  echo "Found libcurl (deduped): $CURL_LIBS_DEDUP"
  update_makevars_var "HTTPVFS_CPPFLAGS" "-DRSQLITE_ENABLE_HTTPVFS"
  update_makevars_var "CURL_CFLAGS" "$CURL_CFLAGS"
  update_makevars_var "CURL_LIBS" "$CURL_LIBS_DEDUP"
else
  echo "libcurl not found; building without httpvfs (ok)"
  update_makevars_var "HTTPVFS_CPPFLAGS" ""
  update_makevars_var "CURL_CFLAGS" ""
  update_makevars_var "CURL_LIBS" ""
fi

# Optional suppression of noisy third-party warnings; set RSQLITE_SILENCE_WARNINGS=1 to enable.
case "${RSQLITE_SILENCE_WARNINGS:-}" in
  1|yes|YES|true|TRUE)
    update_makevars_var "RSQLITE_CXXFLAGS" "-Wno-parentheses -Wno-unused-but-set-variable"
    update_makevars_var "RSQLITE_CFLAGS" "-Wno-unused-but-set-variable"
    ;;
esac