Use -j $(nproc)

Implements build time speed up as suggested in #7

Author: thekid

ChangeLog.md

@@ -3,6 +3,7 @@ AWS Lambda change log
 
 ## ?.?.? / ????-??-??
 
+* Speed up build by using `-j $(nproc)` flag for `make`, see #7 - @thekid
 * Enabled *bcmath* extension - @thekid
 
 ## 2.0.0 / 2021-08-29

src/main/php/xp/lambda/Dockerfile.runtime

@@ -32,7 +32,7 @@ RUN cd php-src-php-${php_version} && ./buildconf --force && ./configure \
   --disable-xml \
   --disable-xmlreader \
   --disable-xmlwriter && \
-  make all install
+  make -j $(nproc) all install
 
 # Create XP Bootstrap
 RUN curl -L https://baltocdn.com/xp-framework/xp-runners/distribution/downloads/e/entrypoint/xp-run-${xp_version}.sh \