Add missing return statement causing segfault

Added compile flags to give error when missing return statement

5 files changed, 12 insertions, 4 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 567d534..704b4c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,3 +23,4 @@ add_executable(sibs ${SOURCE_FILES})
 
 include_directories(${CURL_INCLUDE_DIR} ${LibArchive_INCLUDE_DIR})
 target_link_libraries(sibs ${CURL_LIBRARIES} ${LibArchive_LIBRARIES})
+target_compile_options(sibs PRIVATE -Wall -Wextra -Werror=return-type -fdiagnostics-show-option -fexceptions)
diff --git a/README.md b/README.md
index f328152..29a1685 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 Sibs is still in very early testing phase, should only be used if you want to toy around with it. Every new release currently has changes that break backwards compatibility since the design has not been decided yet.
 
 Sibs is inspired by [Cargo](https://github.com/rust-lang/cargo/), you can think of it like a C/C++ version of Cargo.
+
+The CMakeLists.txt is only for development purpose and only compiles on linux.
 # Installation
 Newest version of sibs builds itself. If you don't already have sibs installed, you need to download latest release first: https://github.com/DEC05EBA/sibs/releases
 After you've download the latest release, you can install it by running install.sh (or use sibs.exe if you are on windows).
diff --git a/backend/ninja/Ninja.cpp b/backend/ninja/Ninja.cpp
index 4eecd6d..3a46af5 100644
--- a/backend/ninja/Ninja.cpp
+++ b/backend/ninja/Ninja.cpp
@@ -64,6 +64,9 @@ namespace backend
             case PackageType::DYNAMIC:
             case PackageType::LIBRARY:
                 return Ninja::LibraryType::DYNAMIC;
+            default:
+                assert(false);
+                return (Ninja::LibraryType)-1;
         }
     }
 
@@ -163,6 +166,7 @@ namespace backend
         {
             case Compiler::GCC:     return ".o";
             case Compiler::MSVC:    return ".obj";
+            default:                return nullptr;
         }
     }
 
@@ -620,7 +624,8 @@ namespace backend
             {
                 case Compiler::GCC:
                 {
-                    result += " '-I" + config.getPackageName() + "@exe' '-I..' '-fdiagnostics-color=always' '-pipe' '-D_FILE_OFFSET_BITS=64' '-Wall' '-Winvalid-pch' '-Wnon-virtual-dtor' " + optimizationFlags + " '-g'";
+                    // -Werror
+                    result += " '-I" + config.getPackageName() + "@exe' '-I..' -Wall -Wextra -Werror=return-type -fexceptions -fdiagnostics-show-option '-fdiagnostics-color=always' '-pipe' '-D_FILE_OFFSET_BITS=64' '-Winvalid-pch' '-Wnon-virtual-dtor' " + optimizationFlags + " '-g'";
                     break;
                 }
                 case Compiler::MSVC:
diff --git a/src/Conf.cpp b/src/Conf.cpp
index 852fcd4..3b0e246 100644
--- a/src/Conf.cpp
+++ b/src/Conf.cpp
@@ -383,6 +383,7 @@ namespace sibs
             case PLATFORM_LINUX64:  return "linux64";
             case PLATFORM_WIN32:    return "win32";
             case PLATFORM_WIN64:    return "win64";
+            default:                return nullptr;
         }
     }
 
@@ -393,6 +394,7 @@ namespace sibs
             case OPT_LEV_NONE:      return "none";
             case OPT_LEV_DEBUG:     return "debug";
             case OPT_LEV_RELEASE:   return "release";
+            default:                return nullptr;
         }
     }
     
diff --git a/src/GlobalLib.cpp b/src/GlobalLib.cpp
index 3334655..9083354 100644
--- a/src/GlobalLib.cpp
+++ b/src/GlobalLib.cpp
@@ -183,9 +183,7 @@ namespace sibs
         if(sibsConfig.shouldUseCmake())
         {
             CmakeModule cmakeModule;
-            Result<bool> cmakeCompileResult = cmakeModule.compile(sibsConfig, buildPath, staticLinkerFlagCallbackFunc, dynamicLinkerFlagCallbackFunc, globalIncludeDirCallback);
-            if(!cmakeCompileResult)
-                return cmakeCompileResult;
+            return cmakeModule.compile(sibsConfig, buildPath, staticLinkerFlagCallbackFunc, dynamicLinkerFlagCallbackFunc, globalIncludeDirCallback);
         }
         else
         {