fix nsga2

Author: ewu63

pyoptsparse/pyNSGA2/meson.build

@@ -1,36 +1,33 @@
 swig = find_program('swig', required: true)
 
 nsga2_source = custom_target('nsga2_wrap.c',
-                            input : ['source/swig/nsga2.i'],
-                            output : ['nsga2_wrap.c'],
-                            command: ['swig', '-o', 'pyoptsparse/pyNSGA2/nsga2_wrap.c', '-python', '-interface', 'nsga2', '@INPUT@']
-                            )
+                        input : ['source/swig/nsga2.i'],
+                        output : ['nsga2_wrap.c'],
+                        command: ['swig', '-o', 'pyoptsparse/pyNSGA2/nsga2_wrap.c', '-python', '-interface', 'nsga2', '@INPUT@']
+                        )
 
-    py3.extension_module('nsga2',
-                    'source/allocate.c',
-                    'source/auxiliary.c',
-                    'source/crossover.c',
-                    'source/crowddist.c',
-                    'source/decode.c',
-                    'source/dominance.c',
-                    'source/eval.c',
-                    'source/fillnds.c',
-                    'source/initialize.c',
-                    'source/list.c',
-                    'source/merge.c',
-                    'source/mutation.c',
-                    'source/nsga2.c',
-                    'source/rand.c',
-                    'source/rank.c',
-                    'source/report.c',
-                    'source/sort.c',
-                    'source/tourselect.c',
-                    nsga2_source,
-                    include_directories: 'source',
-                    dependencies : py3_dep,
-                    subdir: 'pyoptsparse/pyNSGA2',
-                    link_language: 'c',
-                    install: true)
-else
-    message('SWIG was not found, therefore NSGA2 will not be built.')
-endif
+py3.extension_module('nsga2',
+                'source/allocate.c',
+                'source/auxiliary.c',
+                'source/crossover.c',
+                'source/crowddist.c',
+                'source/decode.c',
+                'source/dominance.c',
+                'source/eval.c',
+                'source/fillnds.c',
+                'source/initialize.c',
+                'source/list.c',
+                'source/merge.c',
+                'source/mutation.c',
+                'source/nsga2.c',
+                'source/rand.c',
+                'source/rank.c',
+                'source/report.c',
+                'source/sort.c',
+                'source/tourselect.c',
+                nsga2_source,
+                include_directories: 'source',
+                dependencies : py3_dep,
+                subdir: 'pyoptsparse/pyNSGA2',
+                link_language: 'c',
+                install: true)