Building cross compiler (crosstool-ng) new question

[JoergZ]

I used this howto:
http://archlinuxarm.org/developers/distcc-cross-compiling including the warheads x-tools. Everything worked fine up to the
./ct-ng build command. After 41 seconds the programm stops with this output:
$this->bbcode_second_pass_code('', '[INFO ] Performing some trivial sanity checks
[INFO ] Build started 20150620.141127
[INFO ] Building environment variables
[EXTRA] Preparing working directories
[EXTRA] Installing user-supplied crosstool-NG configuration
[EXTRA] =================================================================
[EXTRA] Dumping internal crosstool-NG configuration
[EXTRA] Building a toolchain for:
[EXTRA] build = x86_64-unknown-linux-gnu
[EXTRA] host = x86_64-unknown-linux-gnu
[EXTRA] target = arm-unknown-linux-gnueabihf
[EXTRA] Dumping internal crosstool-NG configuration: done in 0.03s (at 00:01)
[INFO ] =================================================================
[INFO ] Retrieving needed toolchain components' tarballs
[EXTRA] Retrieving 'gcc-'
[ERROR]
[ERROR] >>
[ERROR] >> Build failed in step 'Retrieving needed toolchain components' tarballs'
[ERROR] >> called in step '(top-level)'
[ERROR] >>
[ERROR] >> Error happened in: do_gcc_get[scripts/build/cc/100-gcc.sh@741]
[ERROR] >> called from: do_cc_get[scripts/build/cc.sh@21]
[ERROR] >> called from: main[scripts/crosstool-NG.sh@585]
[ERROR] >>
[ERROR] >> For more info on this error, look at the file: 'build.log'
[ERROR] >> There is a list of known issues, some with workarounds, in:
[ERROR] >> '/home/archie/cross/share/doc/crosstool-ng/ct-ng.crosstool-ng-1.21.0-43-gbaceedd/B - Known issues.txt'
[ERROR]
[ERROR] (elapsed: 0:39.58)
[00:40] / ct-ng:147: die Regel für Ziel „build“ scheiterte
make: *** [build] Fehler 1
')
My host system is:
$this->bbcode_second_pass_code('', '[archie@arxhX64 bin]$ uname -a
Linux arxhX64 4.0.5-1-ARCH #1 SMP PREEMPT Sat Jun 6 18:37:49 CEST 2015 x86_64 GNU/Linux
') I've looked at the script files mentioned in the error lines, but I can't identify any hints to the problem. Where should the missing tarballs have been storaged? Or what ist the problem. Hope that anybody can help!
Joerg

[subey]

Try add to cross/bin/.config
$this->bbcode_second_pass_code('', 'CT_CC_GCC_VERSION="5.1.0"')

But if you use warheads x-tools then you should skip step "Install crosstool-ng"