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Fix checking of version number for mingw.

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MinGW spits out version strings like: `x86_64-w64-mingw32-g++ (GCC)
10-win32 20210110`, which causes the version extraction to fail.
Added support for this with tests.

Also added `make_unsigned` for `long long`, since mingw seems to
use that for `uint64_t`.

Related to #2268.  CMake and build passes for me after this.


(cherry picked from commit ad82d20cf6)
This commit is contained in:
Antonio Sanchez
2021-06-11 10:21:07 -07:00
committed by Rasmus Munk Larsen
parent b5fc69bdd8
commit 5e75331b9f
2 changed files with 18 additions and 5 deletions
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2
Eigen/src/Core/util/Meta.h
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@@ -189,6 +189,8 @@ template<> struct make_unsigned<signed int> { typedef unsigned int type; }
template<> struct make_unsigned<unsigned int> { typedef unsigned int type; };
template<> struct make_unsigned<signed long> { typedef unsigned long type; };
template<> struct make_unsigned<unsigned long> { typedef unsigned long type; };
template<> struct make_unsigned<signed long long> { typedef unsigned long long type; };
template<> struct make_unsigned<unsigned long long> { typedef unsigned long long type; };
#if EIGEN_COMP_MSVC
template<> struct make_unsigned<signed __int64> { typedef unsigned __int64 type; };
template<> struct make_unsigned<unsigned __int64> { typedef unsigned __int64 type; };