Failed test gmagick-104-setgetimagepage

[remicollet]

 Fatal error: Uncaught Error: Call to undefined method Gmagick::setImagePage() in /dev/shm/BUILD/php70-php-pecl-gmagick-2.0.1/NTS/tests/gmagick-104-setgetimagepage.php:3
 Stack trace:
 #0 {main}
   thrown in /dev/shm/BUILD/php70-php-pecl-gmagick-2.0.1/NTS/tests/gmagick-104-setgetimagepage.php on line 3

IF the method doesn"t exists the test should probably be skiped, but looking at the code, I don't understand where the GMAGICK_HAVE_SET_IMAGE_PAGE comes from.

With GraphicsMagick-1.3.23 (Fedora 23), this fonction exists

$ grep -r MagickSetImagePage /usr/include/GraphicsMagick/
/usr/include/GraphicsMagick/wand/wand_symbols.h:#define MagickSetImagePage GmMagickSetImagePage
/usr/include/GraphicsMagick/wand/magick_wand.h:  MagickSetImagePage(MagickWand *wand,

Probably detection missing in config.m4 (seems related to 79f1690)

[vitoc]

Fixed: f268d0e