g++ >=4.9 required

4.8 doesn't parse R"" literals

.travis.yml

@@ -73,17 +73,6 @@ jobs:
   - env: BASE=7.0 EXTRA="CMD_CXXFLAGS=-std=c++11"
     compiler: clang
 
-# Trusty: compiler versions very close to RHEL 7
-
-  - env: BASE=7.0
-    dist: trusty
-
-  - env: BASE=7.0 EXTRA="CMD_CXXFLAGS=-std=c++11"
-    dist: trusty
-
-  - env: BASE=3.15 EXTRA="CMD_CXXFLAGS=-std=c++11"
-    dist: trusty
-
 # Cross-compilations to Windows using MinGW and WINE
     
   - env: BASE=7.0 WINE=32 TEST=NO STATIC=YES
@@ -94,6 +83,11 @@ jobs:
 
 # Other gcc versions (added as an extra package)
 
+  - env: BASE=7.0
+    dist: trusty
+    compiler: gcc-4.9
+    addons: { apt: { packages: ["g++-4.9"], sources: ["ubuntu-toolchain-r-test"] } }
+
   - env: BASE=7.0
     compiler: gcc-6
     addons: { apt: { packages: ["g++-6"], sources: ["ubuntu-toolchain-r-test"] } }

src/unittest.cpp

@@ -20,7 +20,7 @@ testCase::testCase(bool result)
 
 testCase::testCase(testCase&& o) noexcept
     :result(o.result)
-#if !GCC_VERSION || GCC_VERSION>=VERSION_INT(4,9,0,0)
+#if !GCC_VERSION || GCC_VERSION>=VERSION_INT(4,10,0,0)
     ,msg(std::move(o.msg))
 #else
     // gcc 4.8 (at least) doesn't provide a move ctor yet
@@ -35,7 +35,7 @@ testCase& testCase::operator=(testCase&& o) noexcept
     if(this!=&o) {
         result = o.result;
         o.result = Nothing;
-#if !GCC_VERSION || GCC_VERSION>=VERSION_INT(4,9,0,0)
+#if !GCC_VERSION || GCC_VERSION>=VERSION_INT(4,10,0,0)
         msg = std::move(o.msg);
 #else
         msg.seekp(0);

src/utilpvt.h

@@ -150,8 +150,8 @@ constexpr size_t cmax(size_t A, size_t B) {
     return A>B ? A : B;
 }
 
-// gcc 4.8 has aligned_storage but not aligned_union
-#if GCC_VERSION && GCC_VERSION<VERSION_INT(4,9,0,0)
+// gcc 4.9 has aligned_storage but not aligned_union
+#if GCC_VERSION && GCC_VERSION<VERSION_INT(4,10,0,0)
 
 template<typename... Types>
 struct max_sizeof {