Update .travis.yml

.travis.yml

@@ -5,11 +5,11 @@
 sudo: required
 language: cpp
 
-# gcc 4.8
-addons: &gcc48
+# gcc 4.9
+addons: &gcc49
   apt:
     packages:
-      - g++-4.8
+      - g++-4.9
     sources:
       - ubuntu-toolchain-r-test
 
@@ -44,14 +44,14 @@ addons: &clang10
 
 matrix:
   include:
-    # Test gcc-4.8: C++11, Build=Debug/Release
-    - env: GCC_VERSION=4.8 BUILD_TYPE=Debug CPP=14
+    # Test gcc-4.9: C++14, Build=Debug/Release
+    - env: GCC_VERSION=4.9 BUILD_TYPE=Debug CPP=14
       os: linux
-      addons: *gcc48
+      addons: *gcc49
 
-    - env: GCC_VERSION=4.8 BUILD_TYPE=Release CPP=14
+    - env: GCC_VERSION=4.9 BUILD_TYPE=Release CPP=14
       os: linux
-      addons: *gcc48
+      addons: *gcc49
 
     - env: GCC_VERSION=7 BUILD_TYPE=Release CPP=14
       os: linux
@@ -101,7 +101,7 @@ script:
       -DCMAKE_CXX_STANDARD=$CPP \
       -DSPDLOG_BUILD_EXAMPLE=ON \
       -DSPDLOG_BUILD_EXAMPLE_HO=ON \
-      -DSPDLOG_ENABLE_WARNINGS=ON \
+      -DSPDLOG_BUILD_WARNINGS=ON \
       -DSPDLOG_BUILD_BENCH=OFF \
       -DSPDLOG_BUILD_TESTS=ON \
       -DSPDLOG_BUILD_TESTS_HO=OFf \