pass absolute path to npm executable

configure

@@ -22,6 +22,11 @@ parser.add_option("--node",
     dest="node",
     help="Name of the node executable (defaults to node)")
 
+parser.add_option("--npm",
+    action="store",
+    dest="npm",
+    help="Name of the npm executable (defaults to npm)")
+
 parser.add_option("--pkg-config-root",
     action="store",
     dest="pkgconfig_root",
@@ -59,6 +64,10 @@ def configure_mbgl(o):
       o['variables']['node'] = options.node
   else:
       o['variables']['node'] = 'node'
+  if options.npm:
+      o['variables']['npm'] = options.npm
+  else:
+      o['variables']['npm'] = 'npm'
   o['target_defaults']['default_configuration'] = 'Debug' if options.debug else 'Release'
 
 

mapboxgl.gyp

@@ -49,7 +49,7 @@
           'outputs': [
             'bin/node_modules',
           ],
-          'action': ['./scripts/npm_install.sh']
+          'action': ['./scripts/npm_install.sh', '<@(npm)']
         }
       ],
     },

scripts/npm_install.sh

@@ -4,5 +4,5 @@ set -e
 set -o pipefail
 
 cd bin
-npm install --clang=1
+$1 install --clang=1
 cd ../

setup-libraries.sh

@@ -40,6 +40,9 @@ if [[ $MISSING_DEPS != "" ]]; then
     exit 1
 fi
 
+NODE=`which node`
+NPM=`which npm`
+
 if [ ! -d 'mapnik-packaging/.git' ]; then
   git clone --depth=1 https://github.com/mapnik/mapnik-packaging.git
 fi
@@ -92,7 +95,8 @@ cd ../../
 ./configure \
 --pkg-config-root=`pwd`/mapnik-packaging/osx/out/build-cpp11-libcpp-universal/lib/pkgconfig \
 --boost=`pwd`/mapnik-packaging/osx/out/build-cpp11-libcpp-universal \
---node=`which node`
+--npm=$NPM \
+--node=$NODE
 
 elif [ ${UNAME} = 'Linux' ]; then
 
@@ -122,5 +126,6 @@ cd ../../
 ./configure \
 --pkg-config-root=`pwd`/mapnik-packaging/osx/out/build-cpp11-libstdcpp-gcc-x86_64-linux/lib/pkgconfig \
 --boost=`pwd`/mapnik-packaging/osx/out/build-cpp11-libstdcpp-gcc-x86_64-linux \
---node=`which node`
+--npm=$NPM \
+--node=$NODE
 fi