+if [ "x${CC:-}" != "x" ]; then
+ echo "Selected compiler:"
+ "$CC" -v
+fi
+
+# Set platform variables
+case "$platform" in
+macos*)
+ export MAKE=make
+ export TAR=tar
+ export NPROC="getconf _NPROCESSORS_ONLN"
+ export PATH="/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
+ export CPPFLAGS="-I/opt/local/include"
+ export LDFLAGS="-L/opt/local/lib"
+ export PYTHON="python3.9"
+ export PYTHON_CONFIG="python3.9-config"
+ ;;
+
+freebsd*)
+ export MAKE=gmake
+ export TAR=tar
+ export NPROC="getconf _NPROCESSORS_ONLN"
+ export CPPFLAGS="-I/usr/local/include"
+ export LDFLAGS="-L/usr/local/lib"
+ export PYTHON="python3"
+ export PYTHON_CONFIG="python3-config"
+
+ # For bt 1.5
+ export YACC="bison -y"
+ ;;
+
+*)
+ export MAKE=make
+ export TAR=tar
+ export NPROC=nproc
+ export PYTHON="python3"
+ export PYTHON_CONFIG="python3-config"
+ ;;
+esac
+
+# Print build env details
+print_os || true
+print_tooling || true
+
+# Enter the source directory
+cd "$SRCDIR"
+
+# Run bootstrap in the source directory prior to configure
+./bootstrap
+
+# Get source version from configure script
+eval "$(grep '^PACKAGE_VERSION=' ./configure)"
+PACKAGE_VERSION=${PACKAGE_VERSION//\-pre*/}
+
+# Enable dev mode by default for BT 2.0 builds
+export BABELTRACE_DEBUG_MODE=1
+export BABELTRACE_DEV_MODE=1
+export BABELTRACE_MINIMAL_LOG_LEVEL=TRACE
+
+# Set configure options and environment variables for each build
+# configuration.
+CONF_OPTS=("--prefix=$PREFIX")
+
+# -Werror is enabled by default in stable-2.0 but won't be in 2.1
+# Explicitly disable it for consistency.
+if vergte "$PACKAGE_VERSION" "2.0"; then
+ CONF_OPTS+=("--disable-Werror")
+fi
+