Working on exercise 3-5 but I'm creating some libraries

libraries/test_library1/compile.sh

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+if [ ! -d "bin" ]; then
+    mkdir bin
+    echo "created bin directory"
+fi
+
+if [ ! -d "bin/static" ]; then
+    mkdir bin/static
+    echo "created bin/static directory"
+fi
+
+gcc -c src/test.c -Iinclude -o bin/static/test.o
+
+# gcc -fPIC src/test.c -Iinclude -o bin/shared/test.o
+
+ar rcs bin/static/libtestlibrary.a bin/static/test.o
+

libraries/test_library1/include/test.h

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+#include <stdio.h>
+
+// Returns a test value
+int TestLibrary_test_value();
+
+// Multiplies the value by 1.5
+double TestLibrary_multiply_by_one_point_five(const double value);
+
+
+void __attribute__((constructor)) initLibrary(void);
+
+void __attribute__((destructor)) cleanUpLibrary(void);
+

libraries/test_library1/src/test.c

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+
+
+// #include "../include/test.h"
+#include "test.h"
+
+int TestLibrary_test_value()
+{
+    return 48;
+}
+
+
+double TestLibrary_multiply_by_one_point_five(const double value)
+{
+    return value * 1.5;
+}
+
+
+void __attribute__((constructor)) initLibrary(void)
+{
+    printf("TestLibrary Initialized\n");
+}
+
+void __attribute__((destructor)) cleanUpLibrary(void)
+{
+    printf("TestLibrary is exiting\n");
+}