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Workaround for Python gcc MingGW WIN32 hypot declaration error

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Fixes:
In file included from C:/msys64/mingw32/include/c++/7.3.0/math.h:36:0,
                 from C:/Python27/include/pyport.h:325,
                 from C:/Python27/include/Python.h:61,
                 from example_wrap.cxx:174:
C:/msys64/mingw32/include/c++/7.3.0/cmath:1136:11: error: '::hypot' has not been declared
   using ::hypot;
           ^~~~~

See https://stackoverflow.com/questions/28683358/error-hypot-has-not-been-declared-in-cmath-while-trying-to-embed-python/28683412 and https://bugs.python.org/issue11566
This commit is contained in:
William S Fulton 2018-11-15 08:29:17 +00:00
commit c7363fd95e
1 changed files with 5 additions and 0 deletions
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5
Lib/python/pyruntime.swg
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@ -1,4 +1,9 @@
%insert(runtime) %{
#if defined(__GNUC__) && defined(_WIN32) && !defined(SWIG_PYTHON_NO_HYPOT_WORKAROUND)
/* Workaround for '::hypot' has not been declared', see https://bugs.python.org/issue11566 */
# include <math.h>
#endif
#if defined(_DEBUG) && defined(SWIG_PYTHON_INTERPRETER_NO_DEBUG)
/* Use debug wrappers with the Python release dll */
# undef _DEBUG