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[[Property:title|Supported C compilers]]
[[Property:weight|-14]]
[[Property:uuid|4d4a70fa-b6da-cecb-83e0-dcc18d6ed54a]]
==Unix/Linux Users:==
EiffelStudio supports `gcc' on most platforms and the native`cc' compiler if it is an ANSI C compiler.
==Microsoft Windows Users==
EiffelStudio supports Microsoft and MinGW compilers on Microsoft Windows.
===Microsoft Visual C++ Users===
By default the installation program will set in the registry keys the ISE_C_COMPILER key to `msc'.
EiffelStudio supports only version 14.0 and higher of the Microsoft Visual C++ environment. This is available in Visual Studio 2005 or higher revision, or in version of the Windows SDK 6.1 or higher.
EiffelStudio will automatically detect the location of the C compiler.
===MinGW Users:===
By default the installation program will set in the registry keys the ISE_C_COMPILER key to `mingw'.
In versions as late as 6.6, there is a [[EiffelCOM Wizard Guided Tour|restriction]] that prevents the use of EiffelCOM with the MinGW compiler.
===Changing your C compiler on Windows===
You can do it in either of two different ways.
You can manually edit the registry key HKLM\Software\ISE\Eiffel''nn'' and change the value of the ISE_C_COMPILER string key to either `msc' or `mingw' depending upon the effect you desire.
Alternatively, you can set the environment variable ISE_C_COMPILER to either `msc' or `mingw'.