gcc

• ~/xen-4.0.1$ make world

  (snip)
  
  /bin/sh: gcc: not found
  
  (snip)
  make[5]: gcc: Command not found
  make[5]: *** [figlet] Error 127
  make[5]: Leaving directory `/home/mitty/xen-4.0.1/xen/tools/figlet'
  make[4]: *** [default] Error 2
  make[4]: Leaving directory `/home/mitty/xen-4.0.1/xen/tools'
  make[3]: *** [/home/mitty/xen-4.0.1/xen/xen] Error 2
  make[3]: Leaving directory `/home/mitty/xen-4.0.1/xen'
  make[2]: *** [install] Error 2
  make[2]: Leaving directory `/home/mitty/xen-4.0.1/xen'
  make[1]: *** [install-xen] Error 2
  make[1]: Leaving directory `/home/mitty/xen-4.0.1'
  make: *** [world] Error 2
  

zlib

• ~/xen-4.0.1$ make world

  (snip)
   __  __            _  _    ___   _
   \ \/ /___ _ __   | || |  / _ \ / |
    \  // _ \ '_ \  | || |_| | | || |
    /  \  __/ | | | |__   _| |_| || |
   /_/\_\___|_| |_|    |_|(_)___(_)_|
  
  (snip)
  
  + git clone -o xen -n git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.g
  it linux-2.6-pvops.git.tmp
  Initialized empty Git repository in /home/mitty/xen-4.0.1/linux-2.6-pvops.git.tm
  p/.git/
  remote: Counting objects: 1861794, done.
  remote: Compressing objects: 100% (311315/311315), done.
  remote: Total 1861794 (delta 1547213), reused 1843744 (delta 1533593)
  Receiving objects: 100% (1861794/1861794), 381.76 MiB | 793 KiB/s, done.
  Resolving deltas: 100% (1547213/1547213), done.
  + cd linux-2.6-pvops.git.tmp
  + git checkout -b xen/stable-2.6.32.x xen/xen/stable-2.6.32.x
  Checking out files: 100% (30571/30571), done.
  
  (snip)
  
  *
  * Restart config...
  *
  *
  * Paravirtualized guest support
  *
  Paravirtualized guest support (PARAVIRT_GUEST) [Y/n/?] y
    Xen guest support (XEN) [Y/n/?] y
      Enable Xen debug and tuning parameters in debugfs (XEN_DEBUG_FS) [Y/n/?] y
    Enable Xen privileged domain support (XEN_DOM0) [Y/n/?] y
    Enable support for Xen PCI passthrough devices (XEN_PCI_PASSTHROUGH) [N/y/?] (NEW)
  
  (snip)...
  
  xen platform pci device driver (XEN_PLATFORM_PCI) [M/n/y/?] (NEW)
  #
  # configuration written to .config
  #
  
  (snip)
  
  make -C /home/mitty/xen-4.0.1/linux-2.6-pvops.git O=/home/mitty/xen-4.0.1/build-linux-2.6-pvops_x86_32/. bzImage
    Using /home/mitty/xen-4.0.1/linux-2.6-pvops.git as source for kernel
    GEN     /home/mitty/xen-4.0.1/build-linux-2.6-pvops_x86_32/Makefile
    CHK     include/linux/version.h
    CHK     include/linux/utsrelease.h
    SYMLINK include/asm -> include/asm-x86
    CALL    /home/mitty/xen-4.0.1/linux-2.6-pvops.git/scripts/checksyscalls.sh
    CC      init/main.o
  
  (snip)
  
  Error: zlib check failed
  Make sure to have the zlib libs and headers installed.
  
  sed: can't read config-host.h: No such file or directory
  make[2]: *** [ioemu-dir-find] Error 2
  make[2]: Leaving directory `/home/mitty/xen-4.0.1/tools'
  make[1]: *** [tools/ioemu-dir] Error 2
  make[1]: Leaving directory `/home/mitty/xen-4.0.1'
  make: *** [world] Error 2