make ignores PYTHON setting

[Gillingham]

Compiling on RHEL5 where there's a python, python2.4, python2.7 etc is failing.
node is configured with python2.7 configure so as to force it to use the python2.7 version, python2.7 is specifically 2.7.9 in my case.

  gcc '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' -I../deps/uv/include -I../deps/uv/src  -pthread -pthread -Wall -Wextra -Wno-unused-parameter -m64 -fno-strict-aliasing -g --std=gnu89 -pedantic -Wall -Wextra -Wno-unused-parameter -Wstrict-aliasing -O3 -ffunction-sections -fdata-sections -fno-tree-vrp -fno-tree-sink -fno-omit-frame-pointer  -MMD -MF /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/.deps//home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-inotify.o.d.raw  -c -o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-inotify.o ../deps/uv/src/unix/linux-inotify.c
  gcc '-D_LARGEFILE_SOURCE' '-D_FILE_OFFSET_BITS=64' -I../deps/uv/include -I../deps/uv/src  -pthread -pthread -Wall -Wextra -Wno-unused-parameter -m64 -fno-strict-aliasing -g --std=gnu89 -pedantic -Wall -Wextra -Wno-unused-parameter -Wstrict-aliasing -O3 -ffunction-sections -fdata-sections -fno-tree-vrp -fno-tree-sink -fno-omit-frame-pointer  -MMD -MF /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/.deps//home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-syscalls.o.d.raw  -c -o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-syscalls.o ../deps/uv/src/unix/linux-syscalls.c
  rm -f /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/deps/uv/libuv.a && ar crs /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/deps/uv/libuv.a /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/fs-poll.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/inet.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/threadpool.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/uv-common.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/version.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/async.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/core.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/dl.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/fs.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/getaddrinfo.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/getnameinfo.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/loop.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/loop-watcher.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/pipe.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/poll.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/process.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/signal.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/stream.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/tcp.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/thread.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/timer.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/tty.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/udp.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/proctitle.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-core.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-inotify.o /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/libuv/deps/uv/src/unix/linux-syscalls.o
  ln -f "/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/deps/uv/libuv.a" "/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/libuv.a" 2>/dev/null || (rm -rf "/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/libuv.a" && cp -af "/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj.target/deps/uv/libuv.a" "/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/libuv.a")
  LD_LIBRARY_PATH=/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/lib.host:/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/lib.target:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH; cd ../deps/v8/tools/gyp; mkdir -p /home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj/gen; python ../../tools/js2c.py "/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj/gen/libraries.cc" CORE off ../../src/runtime.js ../../src/v8natives.js ../../src/symbol.js ../../src/array.js ../../src/string.js ../../src/uri.js ../../third_party/fdlibm/fdlibm.js ../../src/math.js ../../src/messages.js ../../src/apinatives.js ../../src/debug-debugger.js ../../src/mirror-debugger.js ../../src/liveedit-debugger.js ../../src/date.js ../../src/json.js ../../src/regexp.js ../../src/arraybuffer.js ../../src/typedarray.js ../../src/weak_collection.js ../../src/promise.js ../../src/object-observe.js ../../src/collection.js ../../src/collection-iterator.js ../../src/macros.py ../../src/array-iterator.js ../../src/string-iterator.js
  File "../../tools/js2c.py", line 409
    except Error as e:
                  ^
SyntaxError: invalid syntax
make[1]: *** [/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out/Release/obj/gen/libraries.cc] Error 1
make[1]: Leaving directory `/home/gillingh/rpmbuild/SOURCES/rampage_django/dist/build/node-v0.12.0/out'
make: *** [node] Error 2

config.mk contains:

# Do not edit. Generated by the configure script.
PYTHON=/usr/bin/python2.7
BUILDTYPE=Release
USE_XCODE=0

Most of the build/compilation works fine, it's just the one stage that ignores/doesn't use the correct PYTHON setting.

A note that this is a regression in 0.12.0, this system worked fine with 0.10.35

[Gillingham]

I found a temporary work-around of editing deps/v8/tools/gyp/v8.gyp and replace 'python' with 'python2.7' to force that stage of the compile to use the correct version of python.

Ideally that file would source the python from config.mk