wscript: With --enable-$x, the existence of $x should be mandatory

If the user says they want to compile aubio with $x enabled, it should
be a critical failure if aubio can't do that.  If the user only wants
to compile aubio with $x enabled if it's possible, then they shouldn't
be setting `--enable-$x`.  With this change, aubio defaults to
"include $x if we find it", which the user can override with either
--enable-$x or --disable-$x.

diff --git a/wscript b/wscript
index 4667fb909e4cd1c7e7fc192742ff5e8986bb88f4..f9c53d7d8306dae77b88d4b99c96e8357b26dfa9 100644 (file)
--- a/wscript
+++ b/wscript
@@ -36,12 +36,12 @@ def options(ctx):
   ctx.add_option('--disable-double', dest='enable_double',
       action='store_false',
       help='compile aubio in single precision mode')
-  ctx.add_option('--enable-fftw3', action='store_true', default=False,
+  ctx.add_option('--enable-fftw3', action='store_true', default=None,
       help='compile with fftw3 instead of ooura (recommended)')
   ctx.add_option('--disable-fftw3', dest='enable_fftw3',
       action='store_false',
       help='compile with ooura instead of fftw3')
-  ctx.add_option('--enable-complex', action='store_true', default=False,
+  ctx.add_option('--enable-complex', action='store_true', default=None,
       help='compile with C99 complex')
   ctx.add_option('--disable-complex', dest='enable_complex',
       action='store_false',
@@ -127,10 +127,11 @@ def configure(ctx):
   # check dependencies
   if (Options.options.enable_sndfile != False):
       ctx.check_cfg(package = 'sndfile', atleast_version = '1.0.4',
-        args = '--cflags --libs', mandatory = False)
+        args = '--cflags --libs', mandatory = Options.options.enable_sndfile)
   if (Options.options.enable_samplerate != False):
       ctx.check_cfg(package = 'samplerate', atleast_version = '0.0.15',
-        args = '--cflags --libs', mandatory = False)
+        args = '--cflags --libs',
+        mandatory = Options.options.enable_samplerate)
 
   # double precision mode
   if (Options.options.enable_double == True):
@@ -145,7 +146,7 @@ def configure(ctx):
     if not Options.options.enable_double:
       package = 'fftw3f'
     ctx.check_cfg(package = package, atleast_version = '3.0.0',
-        args = '--cflags --libs', mandatory = False)
+        args = '--cflags --libs', mandatory = Options.options.enable_fftw3)
     ctx.define('HAVE_FFTW3', 1)
   else:
     # fftw disabled, use ooura
@@ -157,11 +158,12 @@ def configure(ctx):
 
   if (Options.options.enable_jack != False):
     ctx.check_cfg(package = 'jack', atleast_version = '0.15.0',
-    args = '--cflags --libs', mandatory = False)
+    args = '--cflags --libs', mandatory = Options.options.enable_jack)
 
   if (Options.options.enable_lash != False):
     ctx.check_cfg(package = 'lash-1.0', atleast_version = '0.5.0',
-    args = '--cflags --libs', uselib_store = 'LASH', mandatory = False)
+    args = '--cflags --libs', uselib_store = 'LASH',
+    mandatory = Options.options.enable_lash)
 
   # write configuration header
   ctx.write_config_header('src/config.h')