diff --git a/building/build_build_system.sh b/building/build_build_system.sh
deleted file mode 100755
index aeb562d..0000000
--- a/building/build_build_system.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-
-BUILDING_DIR="./building"
-[ -d "$BUILDING_DIR" ] || exit 1
-MAIN_FILE="$BUILDING_DIR/main.cpp"
-[ -f "$MAIN_FILE" ] || exit 1
-COOL_FLAGS="$(pkg-config --cflags regexis024-build-system)"
-
-g++ $COOL_FLAGS -o "$BUILDING_DIR/main" "$MAIN_FILE" || exit 1
diff --git a/building/main.cpp b/building/main.cpp
index bc680c1..642c86b 100644
--- a/building/main.cpp
+++ b/building/main.cpp
@@ -6,7 +6,6 @@ struct Libregexis024BuildSystem {
     /* Installation runlevel */
     BuildUnitsArray runlevel_2;
 
-    /* "debug" or "release" */
     std::string build_type;
     bool build_tests;
 
@@ -33,10 +32,12 @@ struct Libregexis024BuildSystem {
         return my_flag_collection;
     }
 
-    Libregexis024BuildSystem(const std::string& build_type, bool build_tests, const NormalCBuildSystemCommandMeaning& cmd)
-        :build_type(build_type), build_tests(build_tests)
-    {
+    Libregexis024BuildSystem(const NormalCBuildSystemCommandMeaning& cmd){
+        const char* BSCRIPT_TYPE = getenv("BSCRIPT_TYPE");
+        const char* BSCRIPT_TESTS = getenv("BSCRIPT_TESTS");
+        build_type = std::string(BSCRIPT_TYPE ? BSCRIPT_TYPE : "release");
         ASSERT(build_type == "release" || build_type == "debug", "Unknown build type");
+        build_tests = (bool)BSCRIPT_TESTS;
 
         std::vector<ExternalLibraryTarget> ext_targets;
 
@@ -115,7 +116,6 @@ struct Libregexis024BuildSystem {
             T.include_ir = "";
             T.exported_headers = exported_headers;
             T.installation_dir = "";
-            T.pc_output_path = "libregexis024.pc";
             my_targets.push_back(T);
         }
         if (build_tests) {
@@ -140,9 +140,7 @@ int main(int argc, char** argv) {
         }
         NormalCBuildSystemCommandMeaning cmd;
         regular_bs_cli_cmd_interpret(args, cmd);
-        const char* BS_SCRIPT_TYPE = getenv("BS_SCRIPT_TYPE");
-        const char* BS_SCRIPT_TESTS = getenv("BS_SCRIPT_TESTS");
-        Libregexis024BuildSystem bs(BS_SCRIPT_TYPE ? BS_SCRIPT_TYPE : "release", (bool)BS_SCRIPT_TESTS, cmd);
+        Libregexis024BuildSystem bs(cmd);
         if (cmd.need_to_build)
             complete_tasks_of_build_units(bs.runlevel_1);
         if (cmd.need_to_install)