Harden automation: apply only build patches, default clean, install binaries

scripts/all.sh

@@ -1,16 +1,13 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-# Convenience wrapper:
-#   apply patches -> build -> install
-#
-# Env:
-#   SSLTYPE, TARGET, JOBS (see build.sh)
-#   PREFIX (see install.sh)
-
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 cd "$ROOT"
 
+# Defaults suitable for automation
+: "${CLEAN:=1}"
+: "${PREFIX:=/usr/local/imap}"
+
 ./scripts/apply-patches.sh
-./scripts/build.sh
-./scripts/install.sh
+CLEAN="$CLEAN" ./scripts/build.sh
+PREFIX="$PREFIX" ./scripts/install.sh