serial mason installs

bootstrap.sh

@@ -47,42 +47,34 @@ function install() {
 ICU_VERSION="55.1"
 
 function install_mason_deps() {
-    FAIL=0
-    install ccache 3.3.0 &
-    install zlib system &
-    install jpeg_turbo 1.5.0 libjpeg &
-    install libpng 1.6.24 libpng &
-    install libtiff 4.0.6 libtiff &
-    install libpq 9.5.2 &
-    install sqlite 3.14.1 libsqlite3 &
-    install expat 2.2.0 libexpat &
-    install icu ${ICU_VERSION} &
-    install proj 4.9.2 libproj &
-    install pixman 0.34.0 libpixman-1 &
-    install cairo 1.14.6 libcairo &
-    install protobuf 2.6.1 &
+    install ccache 3.3.0
+    install zlib system
+    install jpeg_turbo 1.5.0 libjpeg
+    install libpng 1.6.24 libpng
+    install libtiff 4.0.6 libtiff
+    install libpq 9.5.2
+    install sqlite 3.14.1 libsqlite3
+    install expat 2.2.0 libexpat
+    install icu ${ICU_VERSION}
+    install proj 4.9.2 libproj
+    install pixman 0.34.0 libpixman-1
+    install cairo 1.14.6 libcairo
+    install protobuf 2.6.1
     # technically protobuf is not a mapnik core dep, but installing
     # here by default helps make mapnik-vector-tile builds easier
-    install webp 0.5.1 libwebp &
-    install gdal 2.1.1 libgdal &
-    install boost 1.61.0 &
-    install boost_libsystem 1.61.0 &
-    install boost_libfilesystem 1.61.0 &
-    install boost_libprogram_options 1.61.0 &
-    install boost_libregex_icu 1.61.0 &
+    install webp 0.5.1 libwebp
+    install gdal 2.1.1 libgdal
+    install boost 1.61.0
+    install boost_libsystem 1.61.0
+    install boost_libfilesystem 1.61.0
+    install boost_libprogram_options 1.61.0
+    install boost_libregex_icu 1.61.0
     # technically boost thread and python are not a core dep, but installing
     # here by default helps make python-mapnik builds easier
-    install boost_libthread 1.61.0 &
-    install boost_libpython 1.61.0 &
-    install freetype 2.6.5 libfreetype &
-    install harfbuzz 1.3.0 libharfbuzz &
-    for job in $(jobs -p)
-    do
-        wait $job || let "FAIL+=1"
-    done
-    if [[ "$FAIL" != "0" ]]; then
-        exit ${FAIL}
-    fi
+    install boost_libthread 1.61.0
+    install boost_libpython 1.61.0
+    install freetype 2.6.5 libfreetype
+    install harfbuzz 1.3.0 libharfbuzz
 }
 
 MASON_LINKED_ABS=$(pwd)/mason_packages/.link