media-libs/coin: Now it can be build with gcc7

Package-Manager: Portage-2.3.6, Repoman-2.3.2

media-libs/coin/coin-3.1.3-r2.ebuild

@@ -46,6 +46,7 @@ PATCHES=(
 	"${FILESDIR}"/${P}-gcc-4.7.patch
 	"${FILESDIR}"/${P}-freetype251.patch
 	"${FILESDIR}"/${P}-memhandler-initialization.patch
+	"${FILESDIR}"/${P}-gcc-7.patch
 )
 
 DOCS=(

media-libs/coin/files/coin-3.1.3-gcc-7.patch

@@ -0,0 +1,21 @@
+diff -urN Coin-3.1.3.orig/src/3ds/SoStream.cpp Coin-3.1.3/src/3ds/SoStream.cpp
+--- Coin-3.1.3.orig/src/3ds/SoStream.cpp	2010-03-02 16:20:09.000000000 +0300
++++ Coin-3.1.3/src/3ds/SoStream.cpp	2017-07-23 15:04:43.808204691 +0300
+@@ -176,7 +176,7 @@
+   if (!gotNum) { setBadBit(); return FALSE; } \
+  \
+   char *ce; \
+-  s = '\0'; \
++  s = NULL; \
+   _convertType_ tempVal = _convertFunc_(buf, &ce, 0); \
+  \
+   if (ce != s) \
+@@ -273,7 +273,7 @@
+ gotAll: \
+   \
+   char *ce; \
+-  s = '\0'; \
++  s = NULL; \
+   double tempVal = _convertFunc_(buf, &ce); \
+  \
+   if (ce != s) \