"Internal error: backend\cod1.c 1895" when trying to build DMD/Druntime/Phobos from source

[Walter Bright]

Vladimir Panteleev wrote:
> On Tue, 01 Feb 2011 00:30:27 +0200, Walter Bright 
> <newshound2 at digitalmars.com> wrote:
> 
>> Vladimir Panteleev wrote:
>>> On Mon, 31 Jan 2011 06:13:54 +0200, Walter Bright 
>>> <newshound2 at digitalmars.com> wrote:
>>>
>>>> Vladimir Panteleev wrote:
>>>>> Compiling the source from the .zip still yields a broken dmd.exe. 
>>>>> My version and the one from the .zip seem to differ in many small 
>>>>> ways. The first difference is that in main(), the .zip version 
>>>>> calls a function to get the address of errno, while my .exe 
>>>>> accesses a variable directly.
>>>>
>>>> Check your dmc's errno.h. It should call a function.
>>>  It's declared as follows:
> 
> Actually, it's declared in three files: errno.h, stdlib.h and stddef.h. 
> mars.c uses only the last two.
> 
>> _MT and __cplusplus
> 
> Why should _MT be enabled? There is no -D_MT in win32.mak. Are we using 
> different makefiles?
> 
> root/async.c sets _MT explicitly, but the example at hand is from mars.c.
> 
> If I add -D_MT to CFLAGS in the makefile, I still get a lot of 
> differences. The first difference is now one in a function's 
> prologue/epilogue - the binary from the .zip saves/restores the ECX 
> register, while my binary doesn't. The functions are otherwise identical.
> 

This just makes no sense to me. I still suspect your setup is pulling in some 
other compiler's #include's.