0.27 is failing to build on powerpc

[superm1@…]

In trying to get 0.27 into Ubuntu, I noticed that the powerpc build is not passing.

ccache g++ -c -pipe -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -maltivec -DNDEBUG -fomit-frame-pointer -fPIC -mabi=altivec -pthread -g -Wall -Wpointer-arith -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -fvisibility-inlines-hidden -Wmissing-declarations -Wno-switch -Woverloaded-virtual -funit-at-a-time -fvisibility=hidden -D_REENTRANT -fPIC -Dusing_libcec -D_GNU_SOURCE -DMYTH_API -DUSING_OSS -DUSING_PULSE -DUSING_PULSEOUTPUT -Dlinux -DUSING_ALSA -DQT_SCRIPT_LIB -DQT_SQL_LIB -DQT_XML_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtSql -I/usr/include/qt4/QtScript -I/usr/include/qt4 -I/usr/include/qt4/QtDBus -I/usr -I/usr/include/libxml2 -I../../external/qjson/include -I../../external/libsamplerate -I../libmythsoundtouch -I../libmythfreesurround -I../libmythbase -I../.. -I.. -I. -I../libmythupnp -I../libmythui -I../../external/FFmpeg -I. -o audioconvert.o audio/audioconvert.cpp
audio/audiooutpututil.cpp: In static member function 'static char* AudioOutputUtil::GeneratePinkFrames(char*, int, int, int, int)':
audio/audiooutpututil.cpp:219:52: error: 'bswap_16' was not declared in this scope
                     *samp16++ = LE_SHORT(ires >> 16);
                                                    ^
audio/audiooutpututil.cpp:221:46: error: 'bswap_32' was not declared in this scope
                     *samp32++ = LE_INT(ires);
                                              ^
make[4]: *** [audiooutpututil.o] Error 1

Full log: ​https://launchpadlibrarian.net/149571692/buildlog_ubuntu-saucy-powerpc.mythtv_2%3A0.27.0%2Bfixes.20130907.ac841f0-0ubuntu1_FAILEDTOBUILD.txt.gz

It was passing on 0.26 previously, so something most likely with the move to bswap.h is causing a failure.

[superm1@…]

Patch to fix problem

[superm1@…]

I set up a qemu environment to play with this failure and came to the conclusion that the toolchain isn't happy with the order of includes being wrong. Fixing the include order allows the compilation to proceed happily past this failure.

[Mario Limonciello <superm1@…>]

In 83fddb8ee18639465c2ba80324372ea427d88565/mythtv:

Refs #11835 Re-order the includes in audiooutpututil.cpp to fix a FTBFS on PPC.

HAVE_BYTESWAP_H is defined in mythconfig.h, however that's not included
until after bswap.h has already been included.

Signed-off-by: Stuart Auchterlonie <stuarta@…>

[Mario Limonciello <superm1@…>]

In 7a7aff2f191e9dca95a48b46265617c196b16f78/mythtv:

Fixes #11835 Re-order the includes in audiooutpututil.cpp to fix a FTBFS on PPC.

HAVE_BYTESWAP_H is defined in mythconfig.h, however that's not included
until after bswap.h has already been included.

Signed-off-by: Stuart Auchterlonie <stuarta@…>