Re: [Mingw-users] Help needed to compile gcc-4.2.1 from scratch

[Earnie Boyd <earnie@xxxxxxxxxxxxxxxxxxxxx>]

Quoting Eduardo Mendes <emammendes@xxxxxxxxxxx>:

>
> Hello
>
> Thanks to the help of JonY, gmp and mfpr (./configure 
> --prefix=/mingw) were compiled and installed under mingw.  The next 
> step is to compile gcc-4.2.1 from scratch.  I have donwloaded the 
> source tar.bz2 and the build script and then I set the dirs just like 
> in the script.  After that I issued sh gcc*****build****.sh to see 
> what happens and here is the outcome:
>

I'm not sure exactly what you're saying.  To build GCC from scratch you need

gcc-src/
gcc-bld/
cd gcc-bld
../gcc-src/configure --prefix=`cd /mingw; pwd -W`
make
make install

If you want a different location than specified in the original 
--prefix specified in configure; do not use DEST or DESTDIR (whatever 
it is named).  Instead use

make install prefix=/release/directory

> First error
>
> C:/msys/1.0/develop/sandpit/sjlj/c:/MinGw/lib/gcc/mingw32/4.2.1-sjlj/install-tools/include/README

Based on the visible path it appears that DESTDIR is used.

0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 
487AllocationBase 0x0, BaseAddress 0x71110000, RegionSize 0x2B0000, 
State 0x10000C:\msys\1.0\bin\install.exe: *** Couldn't reserve space 
for cygwin's heap, Win32 error 0make[2]: *** [install] Error 1make[2]: 
Leaving directory 
`C:/msys/1.0/home/eduardo/packages/fixincludes'make[1]: *** 
[install-fixincludes] Error 2make[1]: Leaving directory 
`C:/msys/1.0/home/eduardo/packages'make: *** [install] Error
> 2

I'm guessing MSYS croaks on the bad path.

>
> Second error
>
> gcc -c   -D__USE_MINGW_ACCESS -DIN_GCC   -W -Wall -Wwrite-strings 
> -Wstrict-prootypes -Wmissing-prototypes -Wold-style-definition 
> -Wmissing-format-attribute   -DHAVE_CONFIG_H -DGENERATOR_FILE -I. 
> -Ibuild -I../../gcc-4.2.1-2-src/gcc -I./../gcc-4.2.1-2-src/gcc/build 
> -I../../gcc-4.2.1-2-src/gcc/../include 
> -I../../gc-4.2.1-2-src/gcc/../libcpp/include  
> -I../../gcc-4.2.1-2-src/gcc/../libdecnumbr -I../libdecnumber    -o 
> build/min-insn-modes.o min-insn-modes.c
> cc1.exe: out of memory allocating 3891018455 bytesmake: *** 
> [build/min-insn-modes.o] Error 1make: Leaving directory 
> `C:/msys/1.0/home/eduardo/packages/gcc'make: *** 
> mingw32/libstdc++-v3: No such file or directory.  Stop.
>

4G of user memory is the fixed limit for windows.  Something caused cc1 
to try allocating 3.8G of consecutive memory.

> msys run as administrator under Vista.
>

I have yet to use Vista.  It'll probably be at least two years before 
the corporate world I live in tries.

Earnie

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