@@ -74,7 +74,48 @@ def is_platform_mac():
7474 _pxi_dep [module ] = pxi_files
7575
7676
77- class build_ext (_build_ext ):
77+ class CompilerLauncherMixin :
78+ """Add "compiler launchers" to distutils.
79+
80+ We use this to be able to run the Pandas build using "ccache".
81+
82+ A compiler launcher is a program that is invoked instead of invoking the
83+ compiler directly. It is passed the full compiler invocation command line.
84+
85+ A similar feature exists in CMake, see
86+ https://cmake.org/cmake/help/latest/prop_tgt/LANG_COMPILER_LAUNCHER.html.
87+ """
88+
89+ __is_set_up = False
90+
91+ def build_extensions (self ):
92+ # Integrate into "build_ext"
93+ self .__setup ()
94+ super ().build_extensions ()
95+
96+ def build_libraries (self ):
97+ # Integrate into "build_clib"
98+ self .__setup ()
99+ super ().build_extensions ()
100+
101+ def __setup (self ):
102+ if self .__is_set_up :
103+ return
104+ self .__is_set_up = True
105+ compiler_launcher = os .getenv ("DISTUTILS_C_COMPILER_LAUNCHER" )
106+ if compiler_launcher :
107+
108+ def spawn_with_compiler_launcher (cmd ):
109+ exclude_programs = ("link.exe" ,)
110+ if not cmd [0 ].endswith (exclude_programs ):
111+ cmd = [compiler_launcher ] + cmd
112+ return original_spawn (cmd )
113+
114+ original_spawn = self .compiler .spawn
115+ self .compiler .spawn = spawn_with_compiler_launcher
116+
117+
118+ class build_ext (CompilerLauncherMixin , _build_ext ):
78119 @classmethod
79120 def render_templates (cls , pxifiles ):
80121 for pxifile in pxifiles :
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