sudo apt-get install pkg-config
But if pkg-config is not available for your system, then you will need
-to manually edit the notmuch Makefile to set NOTMUCH_CFLAGS and
-NOTMUCH_LDFLAGS to the correct values without calling pkg-config.
+to manually edit the notmuch Makefile to set the variables such as
+CFLAGS and LDFLAGS to the correct values without calling pkg-config.
EOF
fi
# construct the Makefile.config
cat > Makefile.config <<EOF
prefix = /usr/local
-bash_completion_dir = /etc/bash_completion.d
CFLAGS += ${have_valgrind}
EOF