@@ -73,7 +73,48 @@ def is_platform_mac():
7373 _pxi_dep [module ] = pxi_files
7474
7575
76- class build_ext (_build_ext ):
76+ class CompilerLauncherMixin :
77+ """Add "compiler launchers" to distutils.
78+
79+ We use this to be able to run the Pandas build using "ccache".
80+
81+ A compiler launcher is a program that is invoked instead of invoking the
82+ compiler directly. It is passed the full compiler invocation command line.
83+
84+ A similar feature exists in CMake, see
85+ https://cmake.org/cmake/help/latest/prop_tgt/LANG_COMPILER_LAUNCHER.html.
86+ """
87+
88+ __is_set_up = False
89+
90+ def build_extensions (self ):
91+ # Integrate into "build_ext"
92+ self .__setup ()
93+ super ().build_extensions ()
94+
95+ def build_libraries (self ):
96+ # Integrate into "build_clib"
97+ self .__setup ()
98+ super ().build_extensions ()
99+
100+ def __setup (self ):
101+ if self .__is_set_up :
102+ return
103+ self .__is_set_up = True
104+ compiler_launcher = os .getenv ("DISTUTILS_C_COMPILER_LAUNCHER" )
105+ if compiler_launcher :
106+
107+ def spawn_with_compiler_launcher (cmd ):
108+ exclude_programs = ("link.exe" ,)
109+ if not cmd [0 ].endswith (exclude_programs ):
110+ cmd = [compiler_launcher ] + cmd
111+ return original_spawn (cmd )
112+
113+ original_spawn = self .compiler .spawn
114+ self .compiler .spawn = spawn_with_compiler_launcher
115+
116+
117+ class build_ext (CompilerLauncherMixin , _build_ext ):
77118 @classmethod
78119 def render_templates (cls , pxifiles ):
79120 for pxifile in pxifiles :
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