configure: remove --ninja switch

It is unknown if there are any users of the ninja build and keeping it
around makes refactoring the build system more difficult.  It's partly
broken (or at least, deeply inefficient) because it touches out/Makefile
every time.

PR-URL: https://github.com/iojs/io.js/pull/467
Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>

Makefile

@@ -2,7 +2,6 @@
 
 BUILDTYPE ?= Release
 PYTHON ?= python
-NINJA ?= ninja
 DESTDIR ?=
 SIGN ?=
 PREFIX ?= /usr/local
@@ -20,13 +19,6 @@ NODE_G_EXE = iojs_g$(EXEEXT)
 # or set the V environment variable to an empty string.
 V ?= 1
 
-USE_NINJA ?= 0
-ifeq ($(USE_NINJA),1)
-ifneq ($(V),)
-NINJA := $(NINJA) -v
-endif
-endif
-
 # BUILDTYPE=Debug builds both release and debug builds. If you want to compile
 # just the debug build, run `make -C out BUILDTYPE=Debug` instead.
 ifeq ($(BUILDTYPE),Release)
@@ -39,15 +31,6 @@ endif
 # to check for changes.
 .PHONY: $(NODE_EXE) $(NODE_G_EXE)
 
-ifeq ($(USE_NINJA),1)
-$(NODE_EXE): config.gypi
-	$(NINJA) -C out/Release/
-	ln -fs out/Release/$(NODE_EXE) $@
-
-$(NODE_G_EXE): config.gypi
-	$(NINJA) -C out/Debug/
-	ln -fs out/Debug/$(NODE_EXE) $@
-else
 $(NODE_EXE): config.gypi out/Makefile
 	$(MAKE) -C out BUILDTYPE=Release V=$(V)
 	ln -fs out/Release/$(NODE_EXE) $@
@@ -55,15 +38,9 @@ $(NODE_EXE): config.gypi out/Makefile
 $(NODE_G_EXE): config.gypi out/Makefile
 	$(MAKE) -C out BUILDTYPE=Debug V=$(V)
 	ln -fs out/Debug/$(NODE_EXE) $@
-endif
 
 out/Makefile: common.gypi deps/uv/uv.gyp deps/http_parser/http_parser.gyp deps/zlib/zlib.gyp deps/v8/build/toolchain.gypi deps/v8/build/features.gypi deps/v8/tools/gyp/v8.gyp node.gyp config.gypi
-ifeq ($(USE_NINJA),1)
-	touch out/Makefile
-	$(PYTHON) tools/gyp_node.py -f ninja
-else
 	$(PYTHON) tools/gyp_node.py -f make
-endif
 
 config.gypi: configure
 	if [ -f $@ ]; then

configure

@@ -51,11 +51,6 @@ parser.add_option('--gdb',
     dest='gdb',
     help='add gdb support')
 
-parser.add_option('--ninja',
-    action='store_true',
-    dest='use_ninja',
-    help='generate files for the ninja build system')
-
 parser.add_option('--no-ifaddrs',
     action='store_true',
     dest='no_ifaddrs',
@@ -972,7 +967,6 @@ write('config.gypi', do_not_edit +
 
 config = {
   'BUILDTYPE': 'Debug' if options.debug else 'Release',
-  'USE_NINJA': str(int(options.use_ninja or 0)),
   'USE_XCODE': str(int(options.use_xcode or 0)),
   'PYTHON': sys.executable,
 }
@@ -987,9 +981,7 @@ write('config.mk',
 
 gyp_args = [sys.executable, 'tools/gyp_node.py', '--no-parallel']
 
-if options.use_ninja:
-  gyp_args += ['-f', 'ninja-' + flavor]
-elif options.use_xcode:
+if options.use_xcode:
   gyp_args += ['-f', 'xcode']
 elif flavor == 'win' and sys.platform != 'msys':
   gyp_args += ['-f', 'msvs', '-G', 'msvs_version=auto']