Disable flto by default and add --flto to enable it

1 files changed, 8 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 8282889..a812b8a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -137,6 +137,7 @@ static void usageBuild(bool run)
     printf("  --debug|--release    Optimization level to build project and dependencies with (if not a system package) - Optional (default: --debug)\n");
     printf("  --sanitize           Add runtime address/undefined behavior sanitization. Program can be up to 3 times slower and use 10 times as much RAM. Ignored if compiler doesn't support sanitization - Optional (default: none)\n");
     printf("  --platform           The platform to build for - Optional (default: the running platform)\n");
+    printf("  --flto               Use link-time optimization. May increase compile times - Optional (default: false)\n");
     printf("Examples:\n");
     printf("  sibs %s\n", run ? "run" : "build");
     if(run)
@@ -515,6 +516,7 @@ static int buildProject(int argc, const _tinydir_char_t **argv, bool run)
     FileString projectPath;
     Sanitize sanitize = Sanitize::NONE;
     FileString platformName;
+    bool use_flto = false;
     std::vector<const _tinydir_char_t*> run_args;
 
     for(int i = 0; i < argc; ++i)
@@ -538,6 +540,10 @@ static int buildProject(int argc, const _tinydir_char_t **argv, bool run)
             }
             optimizationLevel = OPT_LEV_RELEASE;
         }
+        else if(_tinydir_strcmp(arg, TINYDIR_STRING("--flto")) == 0)
+        {
+            use_flto = true;
+        }
         else if(_tinydir_strncmp(arg, TINYDIR_STRING("--sanitize="), 11) == 0)
         {
             sanitize = sanitize_string_to_type(arg + 11);
@@ -645,6 +651,7 @@ static int buildProject(int argc, const _tinydir_char_t **argv, bool run)
     sibsConfig.showWarnings = true;
     sibsConfig.platform = platform;
     sibsConfig.setSanitize(sanitize);
+    sibsConfig.use_flto = use_flto;
     return buildProject(projectPath, projectConfFilePath, sibsConfig, run, escape_args(run_args));
 }
 
@@ -1228,6 +1235,7 @@ static int packageProject(int argc, const _tinydir_char_t **argv)
     sibsConfig.showWarnings = true;
     sibsConfig.packaging = packagingType == PackagingType::STATIC;
     sibsConfig.bundling = (packagingType == PackagingType::BUNDLE) || (packagingType == PackagingType::BUNDLE_INSTALL);
+    sibsConfig.use_flto = true;
     int result = buildProject(projectPath, projectConfFilePath, sibsConfig, false, TINYDIR_STRING(""));
     if(result != 0)
         return result;