More mythgallery fixes for windows after [21995]

[Jonathan Martens <jonathan@…>]

After [21995] I still need a few more interventions to make MythGallery compile on windows, one is to fix a linker error as the MSys version of libexif is not build:

g++ -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-rel
oc -Wl,-s -mthreads -Wl -shared -Wl,--out-implib,liblibmythgallery.a -o libmythg
allery.dll object_script.libmythgallery  -L'u:/Qt/4.5.2/lib' -lopengl32 -lglu32
-lgdi32 -luser32 -LU:/mythtv/build//lib -LU:/mythtv/build//lib -lfreetype -lmp3l
ame -lmythdb-0.22 -lmythavutil-0.22 -lmythavcodec-0.22 -lmyth-0.22 -lmythui-0.22
 -lmythupnp-0.22 -LU:/mythtv/build//bin -lexif -lQtSql4 -lQtXml4 -lQtOpenGL4 -lQ
tGui4 -lQtNetwork4 -lQtCore4
u:/mingw-5.1.4/bin/../lib/gcc/mingw32/4.2.4/../../../../mingw32/bin/ld.exe: cann
ot find -lexif
collect2: ld returned 1 exit status
make[1]: *** [libmythgallery.dll] Error 1
make[1]: Leaving directory `/u/mythtv/mythplugins/mythgallery/mythgallery'
make: *** [sub-mythgallery-make_default] Error 2
bash.exe"-3.1$

I will attach a patch shortly, but after fixing that there is still an error because the

#if NEW_LIB_EXIF
...
#else
...
#endif

clauses seem to make the wrong lines of code active during compilation on windows, it uses the lines between

#else 
...
#endif

where it should take the instructions between

#if NEW_LIB_EXIF
...
#else

Manually commenting out the offensive lines makes MythGallery compile, but I do not know how to properly make the exception in this case, so I am unable to create a patch for it, but I guess one of the more experienced developers knows how to do it.

[Jonathan Martens <jonathan@…>]

Additional patch defining NEW_LIB_EXIF to compile the proper lines on windows (also fixing a minor typo in the license header in the file)

[Nigel]

Not sure about re-installing libexif in /mingw. I committed a simpler fix to just rename /bin/libexif.dll in [22013].
The symbol NEW_LIB_EXIF is written into mythplugins/mythgallery/mythgallery/config.h by mythplugins/configure. I think this is the default on MinGW because there is no pkg-config. If that isn't happening for you, maybe run

sh -x configure

to trace it?

[Nigel]

(In [22015]) Enable MythGallery. Closes #5992. Closes #7133. Sorry - also ups the default version number. Resulting binary only lightly tested.