Set s390x --with-arch=z10

Author: cuviper

slaves/linux-cross/README.md

@@ -266,4 +266,5 @@ For targets: `s390x-unknown-linux-gnu`
 - Operating System > Linux kernel version = 2.6.32.68 -- ~RHEL6 kernel
 - C-library > glibc version = 2.12.2 -- ~RHEL6 glibc
 - C compiler > gcc version = 4.9.3
+- C compiler > gcc extra config = --with-arch=z10 -- LLVM's minimum support
 - C compiler > C++ = ENABLE -- to cross compile LLVM

slaves/linux-cross/s390x-linux-gnu.config

@@ -372,7 +372,7 @@ CT_CC_GCC_VERSION="4.9.3"
 # CT_CC_LANG_FORTRAN is not set
 CT_CC_GCC_ENABLE_CXX_FLAGS=""
 CT_CC_GCC_CORE_EXTRA_CONFIG_ARRAY=""
-CT_CC_GCC_EXTRA_CONFIG_ARRAY=""
+CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-arch=z10"
 CT_CC_GCC_EXTRA_ENV_ARRAY=""
 CT_CC_GCC_STATIC_LIBSTDCXX=y
 # CT_CC_GCC_SYSTEM_ZLIB is not set