[OE-core] [PATCH 1/2] alsa-tools: fix build when x11 and gtk+ not available

[Trevor Woerner]

With a rather recent HEAD

Build Configuration:
BB_VERSION        = "1.17.1"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "openSUSE-project-12.3"
TARGET_SYS        = "x86_64-poky-linux"
MACHINE           = "qemux86-64"
DISTRO            = "poky"
DISTRO_VERSION    = "1.3+snapshot-20130407"
TUNE_FEATURES     = "m64"
TARGET_FPU        = ""
meta
meta-yocto
meta-yocto-bsp    = "master:813127247a1100b1abe179dfba25795560eac864"

I am able to successfully perform a "bitbake world" on a number of
different targets:

- qemux86
- qemuarm
- qemumips
- qemux86-64

Unfortunately qemuppc fails when building alsa-tools. Is anyone else seeing
the same thing?

| make[1]: Entering directory
`/home/trevor/build/yocto/fullbuild/qemuppc/work/ppc603e-poky-linux/alsa-tools/1.0.26.1-r1/alsa-tools-1.0.26.1/hda-verb'
| make[1]: warning: jobserver unavailable: using -j1.  Add `+' to parent
make rule.
| powerpc-poky-linux-gcc  -m32 -mhard-float  -mcpu=603e
--sysroot=/home/trevor/build/yocto/fullbuild/qemuppc/sysroots/qemuppc
-DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\"
-DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\"
-DPACKAGE=\"hda-verb\" -DVERSION=\"0.4\" -DSTDC_HEADERS=1 -I.     -O2 -Wall
-pipe -g -MT hda-verb.o -MD -MP -MF .deps/hda-verb.Tpo -c -o hda-verb.o
hda-verb.c
| hda-verb.c:17:20: fatal error: sys/io.h: No such file or directory
| compilation terminated.
| make[1]: *** [hda-verb.o] Error 1
| make[1]: Leaving directory
`/home/trevor/build/yocto/fullbuild/qemuppc/work/ppc603e-poky-linux/alsa-tools/1.0.26.1-r1/alsa-tools-1.0.26.1/hda-verb'
| make: *** [all] Error 1
| ERROR: oe_runmake failed
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