sci-visualization/spyview: add binding := to fltk & fix build with 1.4

1.4.x drops the case sensitivity compat symlinks by default
and upstream strongly recommends to fix packages rather than
re-enable them.

:= due to new soname

Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

sci-visualization/spyview/files/spyview-2018.12.24-fltk1.4.patch

@@ -0,0 +1,33 @@
+Deprecated compatibility symlinks are removed.
+--- a/spyview/ImageData.C
++++ b/spyview/ImageData.C
+@@ -4 +4 @@
+-#include <Fl/filename.H>
++#include <FL/filename.H>
+--- a/spyview/spybrowse.C
++++ b/spyview/spybrowse.C
+@@ -5,2 +5,2 @@
+-#include <Fl/filename.H>
+-#include <Fl/fl_ask.H>
++#include <FL/filename.H>
++#include <FL/fl_ask.H>
+--- a/spyview/spybrowse_ui.fl
++++ b/spyview/spybrowse_ui.fl
+@@ -11 +11 @@
+-decl {\#include <Fl/Fl_File_Chooser.H>} {public
++decl {\#include <FL/Fl_File_Chooser.H>} {public
+--- a/spyview/spybrowse_ui.h
++++ b/spyview/spybrowse_ui.h
+@@ -8 +8 @@
+-#include <Fl/Fl_File_Chooser.H>
++#include <FL/Fl_File_Chooser.H>
+--- a/spyview/spyview.C
++++ b/spyview/spyview.C
+@@ -13 +13 @@
+-#include <Fl/fl_ask.H>
++#include <FL/fl_ask.H>
+@@ -15,2 +15,2 @@
+-#include <Fl/Fl_File_Chooser.H>
+-#include <Fl/filename.H>
++#include <FL/Fl_File_Chooser.H>
++#include <FL/filename.H>

sci-visualization/spyview/spyview-2018.12.24-r1.ebuild

@@ -22,7 +22,7 @@ SLOT="0"
 COMMON_DEPEND="
 	dev-libs/boost:=
 	media-libs/netpbm
-	x11-libs/fltk:1[opengl]
+	x11-libs/fltk:1=[opengl]
 	app-text/ghostscript-gpl
 	virtual/glu
 "
@@ -35,6 +35,7 @@ RDEPEND="${COMMON_DEPEND}
 
 PATCHES=(
 	"${FILESDIR}/spyview-no-user-dirs.patch"
+	"${FILESDIR}/${P}-fltk1.4.patch"
 )
 
 src_unpack() {

sci-visualization/spyview/spyview-9999.ebuild

@@ -22,7 +22,7 @@ SLOT="0"
 COMMON_DEPEND="
 	dev-libs/boost:=
 	media-libs/netpbm
-	x11-libs/fltk:1[opengl]
+	x11-libs/fltk:1=[opengl]
 	app-text/ghostscript-gpl
 	virtual/glu
 "