diff --git a/CMakeLists.txt b/CMakeLists.txt
index b77029c0a..e57bba7b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1265,6 +1265,9 @@ else(WIN32 AND NOT UNIX)
 endif(WIN32 AND NOT UNIX)
 include(CPack)
 
+find_package(obstack REQUIRED)
+target_link_libraries(supertux2_lib PUBLIC ${OBSTACK_LIBRARY})
+
 # move some config clutter to the advanced section
 mark_as_advanced(
   INSTALL_SUBDIR_BIN
diff --git a/mk/cmake/Findobstack.cmake b/mk/cmake/Findobstack.cmake
new file mode 100644
index 000000000..483639865
--- /dev/null
+++ b/mk/cmake/Findobstack.cmake
@@ -0,0 +1,33 @@
+# - Find obstack
+# Figure out if obstack is in glibc or if it musl-obstack or elsewhere
+#
+#  OBSTACK_LIBRARY     - Library to use obstack
+#  OBSTACK_FOUND       - True if found.
+message(STATUS "Checking availability of obstack library")
+INCLUDE(CheckLibraryExists)
+if (OBSTACK_LIBRARY)
+	# Already in cache, be silent
+	set(OBSTACK_FIND_QUIETLY TRUE)
+endif (OBSTACK_LIBRARY)
+find_library(OBSTACK_LIBRARY
+	NAMES obstack
+	PATHS /usr/lib /usr/local/lib /usr/lib64 /usr/local/lib64 ~/usr/local/lib ~/usr/local/lib64
+)
+if (OBSTACK_LIBRARY)
+	set(OBSTACK_FOUND TRUE)
+	set(OBSTACK_LIBRARY ${OBSTACK_LIBRARY})
+	set(CMAKE_REQUIRED_LIBRARIES ${OBSTACK_LIBRARY})
+else (OBSTACK_LIBRARY)
+	set(OBSTACK_LIBRARY "")
+endif (OBSTACK_LIBRARY)
+if (OBSTACK_FOUND)
+	if (NOT OBSTACK_FIND_QUIETLY)
+		message(STATUS "Found obstack library: ${OBSTACK_LIBRARY}")
+	endif (NOT OBSTACK_FIND_QUIETLY)
+else (OBSTACK_FOUND)
+	set(OBSTACK_FOUND TRUE)
+	message(STATUS "Assuming obstack is in libc")
+endif (OBSTACK_FOUND)
+mark_as_advanced(OBSTACK_LIBRARY)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.cmake ${CMAKE_CURRENT_SOURCE_DIR}/config.h)
+message(STATUS "Checking availability of obstack library - done")