diff --git a/m4macros/ax_find_library.m4 b/m4macros/ax_find_library.m4
new file mode 100644
index 0000000000..a95f53f9cb
--- /dev/null
+++ b/m4macros/ax_find_library.m4
@@ -0,0 +1,111 @@
+AC_DEFUN([AX_FIND_LIBRARY], [
+  library="${1}"
+
+  AC_ARG_WITH([${library}],
+    AS_HELP_STRING([--with-${library}=PATH], [path to the ${library}.pc file or to the ${library} installation directory]),
+    [with_library="$withval"])
+
+  library_found=false
+  if test -n "${with_library}"; then
+    if test -f "${with_library}"; then
+
+      # User has pointed --with-${library} to a file. Let's try parse it with pkg-config.
+      if test -n "${PKG_CONFIG}"; then
+        if "${PKG_CONFIG}" "${with_library}"; then
+          LIBRARY_CPPFLAGS=$("${PKG_CONFIG}" --cflags-only-other "${with_library}")
+          LIBRARY_INCLUDEDIR=$("${PKG_CONFIG}" --cflags-only-I "${with_library}")
+          LIBRARY_LIBS=$("${PKG_CONFIG}" --libs "${with_library}")
+          LIBRARY_REPO=$("${PKG_CONFIG}" --variable=SR_REPO_PATH "${with_library}")
+          # LIBRARY_INCLUDEDIR="${LIBRARY_INCLUDEDIR} -I${LIBRARY_CONFIG}/include"
+          # LIBRARY_LIBS="${LIBRARY_LIBS} -Wl,-rpath=${LIBRARY_CONFIG}/lib"
+          library_found=true
+        else
+          AC_MSG_ERROR(["pkg-config ${with_library}" doesn't work properly. It seems like a bad pkg-config file.])
+        fi
+      else
+        AC_MSG_ERROR([--with-${library} seems to point to a pkg-config file, but pkg-config is not available])
+      fi
+    elif test -d "${with_library}"; then
+
+      # User has pointed --with-${library} to a directory.
+      # Let's try to find a ${library}.pc first.
+      library_pc="${LIBRARY_CONFIG}/lib/pkgconfig/${library}.pc"
+      if test -f "${library_pc}"; then
+        if test -n "${PKG_CONFIG}"; then
+          if "${PKG_CONFIG}" "${library_pc}"; then
+            LIBRARY_CPPFLAGS=$("${PKG_CONFIG}" --cflags-only-other "${with_library}")
+            LIBRARY_INCLUDEDIR=$("${PKG_CONFIG}" --cflags-only-I "${with_library}")
+            LIBRARY_LIBS=$("${PKG_CONFIG}" --libs "${with_library}")
+            LIBRARY_REPO=$(cat "${with_library}/lib/pkgconfig/${library}.pc" | grep -F 'SR_REPO_PATH=' | cut -d '=' -f 2)
+            LIBRARY_VERSION=$("${PKG_CONFIG}" --modversion "${with_library}")
+            # LIBRARY_INCLUDEDIR="${LIBRARY_INCLUDEDIR} -I${LIBRARY_CONFIG}/include"
+            # LIBRARY_LIBS="${LIBRARY_LIBS} -Wl,-rpath=${LIBRARY_CONFIG}/lib"
+            library_found=true
+          else
+            AC_MSG_WARN(["pkg-config ${library_pc}" doesn't work properly. It seems like a bad pkg-config file.])
+          fi
+        else
+          AC_MSG_WARN([pkg-config file found at ${library_pc}, but pkg-config is not available])
+        fi
+      else
+          AC_MSG_WARN([pkg-config file not found at ${library_pc}])
+      fi
+    else
+      AC_MSG_ERROR([--with-${library} doesn't point to the sysrepo.pc file or to the sysrepo installation directory])
+    fi
+  else
+
+    # No parameter given. Try pkg-config first.
+    for i in /usr usr/local; do
+      if test -n "${PKG_CONFIG}"; then
+        if test -f "${i}/include/sysrepo.h" && test -f "${i}/lib/libsysrepo.so"; then
+          LIBRARY_CPPFLAGS=
+          LIBRARY_INCLUDEDIR="-I${i}/include"
+          LIBRARY_LIBS="-L${i}/lib -lsysrepo -lsysrepo-cpp"
+          LIBRARY_REPO=$(cat "${i}/lib/pkgconfig/sysrepo.pc" | grep -F 'SR_REPO_PATH=' | cut -d '=' -f 2)
+          LIBRARY_VERSION=$(cat "${i}/include/sysrepo/version.h" | grep -F '#define SR_VERSION ' | cut -d '"' -f 2)
+          library_found=true
+          break
+        fi
+      fi
+    done
+
+    # If not found, then search in usual paths for header and libraries.
+    if ! "${library_found}"; then
+      for i in /usr usr/local; do
+        if test -f "${i}/include/sysrepo.h" && test -f "${i}/lib/libsysrepo.so"; then
+          LIBRARY_CPPFLAGS=
+          LIBRARY_INCLUDEDIR="-I${i}/include"
+          LIBRARY_LIBS=$(-L"${i}/lib" -lsysrepo -lsysrepo-cpp)
+          LIBRARY_REPO=$(cat "${i}/lib/pkgconfig/sysrepo.pc" | grep -F 'SR_REPO_PATH=' | cut -d '=' -f 2)
+          LIBRARY_VERSION=$(cat "${i}/include/sysrepo/version.h" | grep -F '#define SR_VERSION ' | cut -d '"' -f 2)
+          library_found=true
+          break
+        else
+          AC_MSG_WARN([sysrepo not found in ${i}])
+        fi
+      done
+    fi
+  fi
+
+  dnl TODO:
+    dnl Now get the environment for C++ bindings for Sysrepo.
+    dnl SYSREPOCPP_INCLUDEDIR=$("${LIBRARY_CONFIG}" --cflags-only-I libsysrepo-cpp)
+    dnl SYSREPOCPP_CPPFLAGS="${LIBRARY_INCLUDEDIR} $("${LIBRARY_CONFIG}" --cflags-only-other libsysrepo-cpp)"
+    dnl SYSREPOCPP_LIBS=$("${LIBRARY_CONFIG}" --libs libsysrepo-cpp)
+    dnl SYSREPOCPP_VERSION=$("${LIBRARY_CONFIG}" --modversion libsysrepo-cpp)
+
+    dnl If include paths are equal, there's no need to include both. But if they're different,
+    dnl we need both.
+    dnl if test "${LIBRARY_INCLUDEDIR}" != "${SYSREPOCPP_INCLUDEDIR}"; then
+    dnl    LIBRARY_INCLUDEDIR="${LIBRARY_INCLUDEDIR} ${SYSREPOCPP_INCLUDEDIR}"
+    dnl fi
+
+    dnl if test "${LIBRARY_CPPFLAGS}" != "${SYSREPOCPP_CPPFLAGS}"; then
+    dnl    LIBRARY_CPPFLAGS="${LIBRARY_CPPFLAGS} ${SYSREPOCPP_CPPFLAGS}"
+    dnl fi
+
+    dnl if test "${LIBRARY_LIBS}" != "${SYSREPOCPP_LIBS}"; then
+    dnl    LIBRARY_LIBS="${LIBRARY_LIBS} ${SYSREPOCPP_LIBS}"
+    dnl fi
+])