WIP: BLD: use a generator for f2py

scipy/linalg/meson.build

@@ -109,13 +109,6 @@ py3.extension_module('_flapack',
 
 # TODO: cblas/clapack are built *only* for ATLAS. Why? Is it still needed?
 
-# _interpolative
-interpolative_module = custom_target('interpolative_module',
-  output: '_interpolativemodule.c',
-  input: 'interpolative.pyf',
-  command: [generate_f2pymod, '@INPUT@', '-o', '@OUTDIR@']
-)
-
 # id_dist contains a copy of FFTPACK, which has type mismatch warnings
 # that are hard to fix. This code is terrible and noisy during the build,
 # silence it completely.
@@ -159,7 +152,7 @@ py3.extension_module('_interpolative',
     'src/id_dist/src/idzr_rid.f',
     'src/id_dist/src/idzr_rsvd.f',
     'src/id_dist/src/prini.f',
-    interpolative_module,
+    f2py_gen.process('interpolative.pyf'),
   ],
   fortran_args: [fortran_ignore_warnings, _suppress_all_warnings],
   link_args: version_link_args,

scipy/meson.build

@@ -144,6 +144,13 @@ fortranobject_dep = declare_dependency(
   compile_args: _f2py_c_args,
 )
 
+f2py = find_program('f2py')
+f2py_gen = generator(generate_f2pymod,
+  arguments : ['@INPUT@', '-o', '@BUILD_DIR@'],
+  output : ['_@[email protected]', '_@[email protected]'],
+)
+
+
 # TODO: 64-bit BLAS and LAPACK
 #
 # Note that this works as long as BLAS and LAPACK are detected properly via

scipy/stats/meson.build

@@ -31,14 +31,15 @@ py3.extension_module('_ansari_swilk_statistics',
   subdir: 'scipy/stats'
 )
 
-mvn_module = custom_target('mvn_module',
-  output: ['_mvn-f2pywrappers.f', '_mvnmodule.c'],
-  input: 'mvn.pyf',
-  command: [generate_f2pymod, '@INPUT@', '-o', '@OUTDIR@']
-)
+#mvn_module = custom_target('mvn_module',
+#  output: ['_mvn-f2pywrappers.f', '_mvnmodule.c'],
+#  input: 'mvn.pyf',
+#  command: [generate_f2pymod, '@INPUT@', '-o', '@OUTDIR@']
+#)
 
 py3.extension_module('_mvn',
-  [mvn_module, 'mvndst.f'],
+  #[mvn_module, 'mvndst.f'],
+  [f2py_gen.process('mvn.pyf'), 'mvndst.f'],
   # Wno-surprising is to suppress a pointless warning with GCC 10-12
   # (see GCC bug 98411: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98411)
   fortran_args: [fortran_ignore_warnings, _fflag_Wno_surprising],

tools/generate_f2pymod.py

@@ -284,7 +284,7 @@ def main():
 
     # Now invoke f2py to generate the C API module file
     if args.infile.endswith(('.pyf.src', '.pyf')):
-        p = subprocess.Popen([sys.executable, '-m', 'numpy.f2py', fname_pyf,
+        p = subprocess.Popen(['f2py', fname_pyf,
                             '--build-dir', outdir_abs], #'--quiet'],
                             stdout=subprocess.PIPE, stderr=subprocess.PIPE,
                             cwd=os.getcwd())