diff --git a/src/Dependency.cpp b/src/Dependency.cpp
index 5b4baf9..99ff049 100644
--- a/src/Dependency.cpp
+++ b/src/Dependency.cpp
@@ -176,8 +176,7 @@ void Dependency::print()
 {
     std::cout << "\n * " << filename << " from " << prefix << "\n";
 
-    const int symamount = symlinks.size();
-    for (int n=0; n<symamount; ++n)
+    for (size_t n=0; n<symlinks.size(); ++n)
         std::cout << "     symlink --> " << symlinks[n] << "\n";;
 }
 
@@ -202,9 +201,8 @@ void Dependency::addSymlink(std::string s)
 bool Dependency::mergeIfSameAs(Dependency& dep2)
 {
     if (dep2.getOriginalFileName().compare(filename) == 0) {
-        const int samount = getSymlinkAmount();
-        for (int n=0; n<samount; ++n)
-            dep2.addSymlink(getSymlink(n));
+        for (size_t n=0; n<symlinks.size(); ++n)
+            dep2.addSymlink(symlinks[n]);
         return true;
     }
     return false;
@@ -278,8 +276,7 @@ void Dependency::fixFileThatDependsOnMe(std::string file_to_fix)
     }
 
     // for symlinks
-    const int symamount = symlinks.size();
-    for (int n=0; n<symamount; ++n) {
+    for (size_t n=0; n<symlinks.size(); ++n) {
         command = std::string("install_name_tool -change ") + symlinks[n] + " " + getInnerPath() + " " + file_to_fix;
         if (systemp(command) != 0) {
             std::cerr << "\n\nError: An error occured while trying to fix dependencies of " << file_to_fix << "\n";
@@ -297,7 +294,7 @@ void Dependency::fixFileThatDependsOnMe(std::string file_to_fix)
         }
 
         // for symlinks
-        for (int n=0; n<symamount; ++n) {
+        for (size_t n=0; n<symlinks.size(); ++n) {
             command = std::string("install_name_tool -change ") + symlinks[n] + " " + getInnerPath() + " " + file_to_fix;
             if (systemp(command) != 0) {
                 std::cerr << "\n\nError: An error occured while trying to fix dependencies of " << file_to_fix << "\n";
diff --git a/src/Dependency.h b/src/Dependency.h
index 3728da9..c457787 100644
--- a/src/Dependency.h
+++ b/src/Dependency.h
@@ -17,7 +17,7 @@ public:
     std::string getInnerPath();
 
     void addSymlink(std::string s);
-    int getSymlinkAmount() const { return symlinks.size(); }
+    size_t symlinksCount() const { return symlinks.size(); }
 
     std::string getSymlink(int i) const { return symlinks[i]; }
     std::string getPrefix() const { return prefix; }
@@ -37,13 +37,6 @@ private:
 
     // installation
     std::string new_name;
-
-    // the paths to search for dylibs, store it globally to parse the environment variables only once
-    // std::vector<std::string> paths;
-
-    // if some libs are missing prefixes, this will be set to true
-    // more stuff will then be necessary to do
-    // bool missing_prefixes;
 };
 
 #endif
diff --git a/src/DylibBundler.cpp b/src/DylibBundler.cpp
index b3a0363..aa4a883 100644
--- a/src/DylibBundler.cpp
+++ b/src/DylibBundler.cpp
@@ -16,9 +16,10 @@
 
 std::vector<Dependency> deps;
 std::map<std::string, std::vector<Dependency>> deps_per_file;
+std::map<std::string, bool> deps_collected;
+std::set<std::string> frameworks;
 std::set<std::string> rpaths;
 std::map<std::string, std::vector<std::string>> rpaths_per_file;
-std::map<std::string, bool> deps_collected;
 
 void changeLibPathsOnFile(std::string file_to_fix)
 {
@@ -29,7 +30,7 @@ void changeLibPathsOnFile(std::string file_to_fix)
 
     std::vector<Dependency> deps_in_file = deps_per_file[file_to_fix];
     const int dep_amount = deps_in_file.size();
-    for (int n=0; n<dep_amount; ++n)
+    for (size_t n=0; n<dep_amount; ++n)
         deps_in_file[n].fixFileThatDependsOnMe(file_to_fix);
 }
 
@@ -148,16 +149,14 @@ void addDependency(std::string path, std::string filename)
 
     // check if this library was already added to |deps| to avoid duplicates
     bool in_deps = false;
-    const int dep_amount = deps.size();
-    for (int n=0; n<dep_amount; n++)
+    for (size_t n=0; n<deps.size(); ++n)
         if (dep.mergeIfSameAs(deps[n]))
             in_deps = true;
 
     // check if this library was already added to |deps_per_file[filename]| to avoid duplicates
-    std::vector<Dependency> deps_in_file = deps_per_file[filename];
     bool in_deps_per_file = false;
-    for (int n=0; n<deps_in_file.size(); n++)
-        if (dep.mergeIfSameAs(deps_in_file[n]))
+    for (size_t n=0; n<deps_per_file[filename].size(); ++n)
+        if (dep.mergeIfSameAs(deps_per_file[filename][n]))
             in_deps_per_file = true;
 
     // check if this library is in /usr/lib, /System/Library, or in ignored list
@@ -167,10 +166,8 @@ void addDependency(std::string path, std::string filename)
     if (!in_deps)
         deps.push_back(dep);
 
-    if (!in_deps_per_file) {
-        deps_in_file.push_back(dep);
-        deps_per_file[filename] = deps_in_file;
-    }
+    if (!in_deps_per_file)
+        deps_per_file[filename].push_back(dep);
 }
 
 // Fill |lines| with dependencies of given |filename|
@@ -195,8 +192,7 @@ void collectDependencies(std::string filename)
     std::vector<std::string> lines;
     collectDependencies(filename, lines);
 
-    const int line_amount = lines.size();
-    for (int n=0; n<line_amount; n++) {
+    for (size_t n=0; n<lines.size(); n++) {
         if (!Settings::bundleFrameworks())
             if (lines[n].find(".framework") != std::string::npos)
                 continue;
@@ -214,13 +210,13 @@ void collectDependencies(std::string filename)
 
 void collectSubDependencies()
 {
-    int dep_amount = deps.size();
+    size_t deps_size = deps.size();
 
     // recursively collect each dependency's dependencies
     while (true) {
-        dep_amount = deps.size();
+        deps_size = deps.size();
 
-        for (int n=0; n<dep_amount; n++) {
+        for (size_t n=0; n<deps_size; n++) {
             std::string original_path = deps[n].getOriginalPath();
             if (Settings::verboseOutput())
                 std::cout << "original path: " << original_path << std::endl;
@@ -232,8 +228,7 @@ void collectSubDependencies()
             std::vector<std::string> lines;
             collectDependencies(original_path, lines);
 
-            const int line_amount = lines.size();
-            for (int n=0; n<line_amount; n++) {
+            for (size_t n=0; n<lines.size(); ++n) {
                 if (!Settings::bundleFrameworks())
                     if (lines[n].find(".framework") != std::string::npos)
                         continue;
@@ -252,7 +247,7 @@ void collectSubDependencies()
             }
         }
         // if no more dependencies were added on this iteration, stop searching
-        if (deps.size() == dep_amount)
+        if (deps.size() == deps_size)
             break;
     }
 }
@@ -293,10 +288,10 @@ void createDestDir()
 
 void doneWithDeps_go()
 {
-    const int dep_amount = deps.size();
+    const size_t deps_size = deps.size();
 
     std::cout << "\n";
-    for (int n=0; n<dep_amount; n++)
+    for (size_t n=0; n<deps_size; ++n)
         deps[n].print();
     std::cout << "\n";
 
@@ -304,15 +299,15 @@ void doneWithDeps_go()
     if (Settings::bundleLibs()) {
         createDestDir();
 
-        for (int i=0; i<dep_amount; ++i) {
+        for (size_t i=0; i<deps_size; ++i) {
             deps[i].copyYourself();
             changeLibPathsOnFile(deps[i].getInstallPath());
             fixRpathsOnFile(deps[i].getOriginalPath(), deps[i].getInstallPath());
         }
     }
 
-    const int fileToFixAmount = Settings::fileToFixAmount();
-    for (int n=0; n<fileToFixAmount; n++) {
+    const size_t filesToFixSize = Settings::filesToFix().size();
+    for (size_t n=0; n<filesToFixSize; ++n) {
         changeLibPathsOnFile(Settings::fileToFix(n));
         fixRpathsOnFile(Settings::fileToFix(n), Settings::fileToFix(n));
     }
diff --git a/src/Settings.cpp b/src/Settings.cpp
index e60d34a..34ab6cc 100644
--- a/src/Settings.cpp
+++ b/src/Settings.cpp
@@ -38,9 +38,9 @@ void destFolder(std::string path)
 
 std::vector<std::string> files;
 void addFileToFix(std::string path) { files.push_back(path); }
-int fileToFixAmount() { return files.size(); }
 std::string fileToFix(const int n) { return files[n]; }
 std::vector<std::string> filesToFix() { return files; }
+size_t filesToFixCount() { return files.size(); }
 
 std::string insideLibPath() { return inside_path_str; }
 void insideLibPath(std::string p)
@@ -61,8 +61,7 @@ void ignorePrefix(std::string prefix)
 
 bool isPrefixIgnored(std::string prefix)
 {
-    const int prefix_amount = prefixes_to_ignore.size();
-    for (int n=0; n<prefix_amount; n++) {
+    for (size_t n=0; n<prefixes_to_ignore.size(); n++) {
         if (prefix.compare(prefixes_to_ignore[n]) == 0)
             return true;
     }
@@ -88,7 +87,7 @@ bool isPrefixBundled(std::string prefix)
 
 std::vector<std::string> searchPaths;
 void addSearchPath(std::string path) { searchPaths.push_back(path); }
-int searchPathAmount() { return searchPaths.size(); }
+int searchPathCount() { return searchPaths.size(); }
 std::string searchPath(const int n) { return searchPaths[n]; }
 
 bool quietOutput() { return quiet_output; }
diff --git a/src/Settings.h b/src/Settings.h
index 226003b..32c0fa0 100644
--- a/src/Settings.h
+++ b/src/Settings.h
@@ -29,15 +29,15 @@ std::string destFolder();
 void destFolder(std::string path);
 
 void addFileToFix(std::string path);
-int fileToFixAmount();
 std::string fileToFix(int n);
 std::vector<std::string> filesToFix();
+size_t filesToFixCount();
 
 std::string insideLibPath();
 void insideLibPath(std::string p);
 
 void addSearchPath(std::string path);
-int searchPathAmount();
+int searchPathCount();
 std::string searchPath(int n);
 
 bool quietOutput();
diff --git a/src/Utils.cpp b/src/Utils.cpp
index 493710b..20f8704 100644
--- a/src/Utils.cpp
+++ b/src/Utils.cpp
@@ -134,8 +134,8 @@ int systemp(const std::string& cmd)
 
 std::string getUserInputDirForFile(const std::string& filename)
 {
-    const int searchPathAmount = Settings::searchPathAmount();
-    for (int n=0; n<searchPathAmount; ++n) {
+    const size_t searchPathCount = Settings::searchPathCount();
+    for (size_t n=0; n<searchPathCount; ++n) {
         auto searchPath = Settings::searchPath(n);
         if (!searchPath.empty() && searchPath[searchPath.size()-1] != '/')
             searchPath += "/";
diff --git a/src/main.cpp b/src/main.cpp
index d7ca69e..fcdd2ae 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -115,15 +115,15 @@ int main (int argc, char * const argv[])
         }
     }
 
-    if (!Settings::bundleLibs() && Settings::fileToFixAmount() < 1) {
+    if (!Settings::bundleLibs() && Settings::filesToFixCount() < 1) {
         showHelp();
         exit(0);
     }
 
     std::cout << "* Collecting dependencies...\n";
 
-    const int amount = Settings::fileToFixAmount();
-    for (int n=0; n<amount; n++)
+    const size_t count = Settings::filesToFixCount();
+    for (size_t n=0; n<count; ++n)
         collectDependencies(Settings::fileToFix(n));
 
     collectSubDependencies();