Bug: https://bugs.gentoo.org/600380

--- a/bardecode/code25i.hh
+++ b/bardecode/code25i.hh
@@ -20,6 +20,12 @@
 
 #include "scanner_utils.hh"
 
+#if __cplusplus >= 201103L
+#define STATIC_CONST_DOUBLE static constexpr double
+#else
+#define STATIC_CONST_DOUBLE static const double
+#endif
+
 namespace BarDecode
 {
     struct code25i_t
@@ -37,11 +43,11 @@
 	#define w_hq 1.5
 	#define tol 0.2
 #else
-        static const double n_lq = 15;
-        static const double n_hq = 5.3;
-        static const double w_lq = 5.2;
-        static const double w_hq = 1.5;
-        static const double tol = 0.2;
+        STATIC_CONST_DOUBLE n_lq = 15;
+        STATIC_CONST_DOUBLE n_hq = 5.3;
+        STATIC_CONST_DOUBLE w_lq = 5.2;
+        STATIC_CONST_DOUBLE w_hq = 1.5;
+        STATIC_CONST_DOUBLE tol = 0.2;
 #endif
         static const usize_t min_quiet_usize = 5;
         //static const usize_t min_quiet_usize = 10;
--- a/codecs/bmp.cc
+++ b/codecs/bmp.cc
@@ -473,7 +473,7 @@
 	  std::cerr << "scanline " << row << " Seek error: " << stream->tellg() << " vs " << offset << std::endl;
 	}
 	
-	if (stream->read ((char*)row_data, file_stride) < 0) {
+	if (!static_cast<bool>(stream->read ((char*)row_data, file_stride))) {
 	  std::cerr << "scanline " << row << ": Read error\n";
 	}
 	
--- a/codecs/dcraw.h
+++ b/codecs/dcraw.h
@@ -3958,22 +3958,22 @@
     -2,+0,+0,-1,0,0x06, -2,+0,+0,+0,1,0x02, -2,+0,+0,+1,0,0x03,
     -2,+1,-1,+0,0,0x04, -2,+1,+0,-1,1,0x04, -2,+1,+0,+0,0,0x06,
     -2,+1,+0,+1,0,0x02, -2,+2,+0,+0,1,0x04, -2,+2,+0,+1,0,0x04,
-    -1,-2,-1,+0,0,0x80, -1,-2,+0,-1,0,0x01, -1,-2,+1,-1,0,0x01,
-    -1,-2,+1,+0,1,0x01, -1,-1,-1,+1,0,0x88, -1,-1,+1,-2,0,0x40,
+    -1,-2,-1,+0,0,(signed char) 0x80, -1,-2,+0,-1,0,0x01, -1,-2,+1,-1,0,0x01,
+    -1,-2,+1,+0,1,0x01, -1,-1,-1,+1,0,(signed char) 0x88, -1,-1,+1,-2,0,0x40,
     -1,-1,+1,-1,0,0x22, -1,-1,+1,+0,0,0x33, -1,-1,+1,+1,1,0x11,
     -1,+0,-1,+2,0,0x08, -1,+0,+0,-1,0,0x44, -1,+0,+0,+1,0,0x11,
     -1,+0,+1,-2,1,0x40, -1,+0,+1,-1,0,0x66, -1,+0,+1,+0,1,0x22,
     -1,+0,+1,+1,0,0x33, -1,+0,+1,+2,1,0x10, -1,+1,+1,-1,1,0x44,
     -1,+1,+1,+0,0,0x66, -1,+1,+1,+1,0,0x22, -1,+1,+1,+2,0,0x10,
     -1,+2,+0,+1,0,0x04, -1,+2,+1,+0,1,0x04, -1,+2,+1,+1,0,0x04,
-    +0,-2,+0,+0,1,0x80, +0,-1,+0,+1,1,0x88, +0,-1,+1,-2,0,0x40,
+    +0,-2,+0,+0,1,(signed char) 0x80, +0,-1,+0,+1,1,(signed char) 0x88, +0,-1,+1,-2,0,0x40,
     +0,-1,+1,+0,0,0x11, +0,-1,+2,-2,0,0x40, +0,-1,+2,-1,0,0x20,
     +0,-1,+2,+0,0,0x30, +0,-1,+2,+1,1,0x10, +0,+0,+0,+2,1,0x08,
     +0,+0,+2,-2,1,0x40, +0,+0,+2,-1,0,0x60, +0,+0,+2,+0,1,0x20,
     +0,+0,+2,+1,0,0x30, +0,+0,+2,+2,1,0x10, +0,+1,+1,+0,0,0x44,
     +0,+1,+1,+2,0,0x10, +0,+1,+2,-1,1,0x40, +0,+1,+2,+0,0,0x60,
-    +0,+1,+2,+1,0,0x20, +0,+1,+2,+2,0,0x10, +1,-2,+1,+0,0,0x80,
-    +1,-1,+1,+1,0,0x88, +1,+0,+1,+2,0,0x08, +1,+0,+2,-1,0,0x40,
+    +0,+1,+2,+1,0,0x20, +0,+1,+2,+2,0,0x10, +1,-2,+1,+0,0,(signed char) 0x80,
+    +1,-1,+1,+1,0,(signed char) 0x88, +1,+0,+1,+2,0,0x08, +1,+0,+2,-1,0,0x40,
     +1,+0,+2,+1,0,0x10
   }, chood[] = { -1,-1, -1,0, -1,+1, 0,+1, +1,+1, +1,0, +1,-1, 0,-1 };
   ushort (*brow[5])[4], *pix;
@@ -6341,11 +6341,11 @@
 	{ 10793,-3791,-1146,-7498,15177,2488,-1390,1577,7321 } },
     { "OLYMPUS C80", 0, 0,
 	{ 8606,-2509,-1014,-8238,15714,2703,-942,979,7760 } },
-    { "OLYMPUS E-10", 0, 0xffc0,
+    { "OLYMPUS E-10", 0, (short) 0xffc0,
 	{ 12745,-4500,-1416,-6062,14542,1580,-1934,2256,6603 } },
-    { "OLYMPUS E-1", 0, 0xfff0,
+    { "OLYMPUS E-1", 0, (short) 0xfff0,
 	{ 11846,-4767,-945,-7027,15878,1089,-2699,4122,8311 } },
-    { "OLYMPUS E-20", 0, 0xffc0,
+    { "OLYMPUS E-20", 0, (short) 0xffc0,
 	{ 13173,-4732,-1499,-5807,14036,1895,-2045,2452,7142 } },
     { "OLYMPUS E-300", 0, 0,
 	{ 7828,-1761,-348,-5788,14071,1830,-2853,4518,6557 } },
@@ -6353,7 +6353,7 @@
 	{ 8961,-2473,-1084,-7979,15990,2067,-2319,3035,8249 } },
     { "OLYMPUS E-3", 0, 0xf99,
 	{ 9487,-2875,-1115,-7533,15606,2010,-1618,2100,7389 } },
-    { "OLYMPUS E-400", 0, 0xfff0,
+    { "OLYMPUS E-400", 0, (short) 0xfff0,
 	{ 6169,-1483,-21,-7107,14761,2536,-2904,3580,8568 } },
     { "OLYMPUS E-410", 0, 0xf6a,
 	{ 8856,-2582,-1026,-7761,15766,2082,-2009,2575,7469 } },
@@ -6399,23 +6399,23 @@
 	{ 9186,-2678,-907,-8693,16517,2260,-1129,1094,8524 } },
     { "PENTAX K2000", 0, 0,
 	{ 11057,-3604,-1155,-5152,13046,2329,-282,375,8104 } },
-    { "Panasonic DMC-FZ8", 0, 0xf7f0,
+    { "Panasonic DMC-FZ8", 0, (short) 0xf7f0,
 	{ 8986,-2755,-802,-6341,13575,3077,-1476,2144,6379 } },
     { "Panasonic DMC-FZ18", 0, 0,
 	{ 9932,-3060,-935,-5809,13331,2753,-1267,2155,5575 } },
     { "Panasonic DMC-FZ28", 15, 0xfff,
 	{ 10109,-3488,-993,-5412,12812,2916,-1305,2140,5543 } },
-    { "Panasonic DMC-FZ30", 0, 0xf94c,
+    { "Panasonic DMC-FZ30", 0, (short) 0xf94c,
 	{ 10976,-4029,-1141,-7918,15491,2600,-1670,2071,8246 } },
-    { "Panasonic DMC-FZ50", 0, 0xfff0,	/* aka "LEICA V-LUX1" */
+    { "Panasonic DMC-FZ50", 0, (short) 0xfff0,	/* aka "LEICA V-LUX1" */
 	{ 7906,-2709,-594,-6231,13351,3220,-1922,2631,6537 } },
     { "Panasonic DMC-L10", 15, 0xf96,
 	{ 8025,-1942,-1050,-7920,15904,2100,-2456,3005,7039 } },
-    { "Panasonic DMC-L1", 0, 0xf7fc,	/* aka "LEICA DIGILUX 3" */
+    { "Panasonic DMC-L1", 0, (short) 0xf7fc,	/* aka "LEICA DIGILUX 3" */
 	{ 8054,-1885,-1025,-8349,16367,2040,-2805,3542,7629 } },
     { "Panasonic DMC-LC1", 0, 0,	/* aka "LEICA DIGILUX 2" */
 	{ 11340,-4069,-1275,-7555,15266,2448,-2960,3426,7685 } },
-    { "Panasonic DMC-LX1", 0, 0xf7f0,	/* aka "LEICA D-LUX2" */
+    { "Panasonic DMC-LX1", 0, (short) 0xf7f0,	/* aka "LEICA D-LUX2" */
 	{ 10704,-4187,-1230,-8314,15952,2501,-920,945,8927 } },
     { "Panasonic DMC-LX2", 0, 0,	/* aka "LEICA D-LUX3" */
 	{ 8048,-2810,-623,-6450,13519,3272,-1700,2146,7049 } },
--- a/codecs/raw.cc
+++ b/codecs/raw.cc
@@ -66,7 +66,7 @@
   if (!image.getRawData())
     return false;
 
-  return stream->write ((char*)image.getRawData(), image.stride()*image.h)
+  return static_cast<bool>(stream->write ((char*)image.getRawData(), image.stride()*image.h))
     /* ==
        (size_t) image.stride()*image.h*/;
 }