When building gst-plugins-bad1.0 1.4.5-1ubuntu3
...
/bin/bash ../../libtool --tag=CC --tag=disable-static --mode=compile gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I../.. -D_FORTIFY_SOURCE=2 -I../../gst-libs -I../../gst-libs -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -DGST_USE_UNSTABLE_API -DG_THREADS_MANDATORY -DG_DISABLE_CAST_CHECKS -DG_DISABLE_ASSERT -Wall -Wdeclaration-after-statement -Wvla -Wpointer-arith -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wwrite-strings -Wformat-security -Wold-style-definition -Winit-self -Wmissing-include-dirs -Waddress -Wno-multichar -Wnested-externs -g -I/usr/include/gudev-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -I/usr/include/libusb-1.0 -DGST_USE_UNSTABLE_API -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wall -Wno-error -c -o libgstuvch264_la-gstuvch264_mjpgdemux.lo `test -f 'gstuvch264_mjpgdemux.c' || echo './'`gstuvch264_mjpgdemux.c
/bin/bash ../../libtool --tag=CC --tag=disable-static --mode=compile gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I../.. -D_FORTIFY_SOURCE=2 -I../../gst-libs -I../../gst-libs -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -DGST_USE_UNSTABLE_API -DG_THREADS_MANDATORY -DG_DISABLE_CAST_CHECKS -DG_DISABLE_ASSERT -Wall -Wdeclaration-after-statement -Wvla -Wpointer-arith -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wwrite-strings -Wformat-security -Wold-style-definition -Winit-self -Wmissing-include-dirs -Waddress -Wno-multichar -Wnested-externs -g -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wall -Wno-error -c -o libgstdvb_la-gstdvbsrc.lo `test -f 'gstdvbsrc.c' || echo './'`gstdvbsrc.c
/bin/bash ../../libtool --tag=CC --tag=disable-static --mode=compile gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I../.. -D_FORTIFY_SOURCE=2 -I../../gst-libs -I../../gst-libs -pthread -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -DGST_USE_UNSTABLE_API -DG_THREADS_MANDATORY -DG_DISABLE_CAST_CHECKS -DG_DISABLE_ASSERT -Wall -Wdeclaration-after-statement -Wvla -Wpointer-arith -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wwrite-strings -Wformat-security -Wold-style-definition -Winit-self -Wmissing-include-dirs -Waddress -Wno-multichar -Wnested-externs -g -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wall -Wno-error -c -o libgstdvb_la-dvbbasebin.lo `test -f 'dvbbasebin.c' || echo './'`dvbbasebin.c
In file included from /usr/include/ubuntu/application/ui/window.h:31:0,
from gstamc.h:35,
from gstamchybris.c:27:
/usr/include/ubuntu/application/instance.h:28:44: fatal error: mir_toolkit/mir_client_library.h: No such file or directory
#include <mir_toolkit/mir_client_library.h>
^
compilation terminated.
gst-plugins-bad doesn't use mir directly, and the mir_toolkit header gets included because of platform-api. I believe the right fix would be for platform-api to export the right include path as part of the pc file that it exports.