target_os = @target_os@
target_vendor = @target_vendor@
toplevel_srcdir = @toplevel_srcdir@
+
+# May be used by various substitution variables.
+gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
mkinstalldirs = $(SHELL) $(toplevel_srcdir)/mkinstalldirs
noinst_LTLIBRARIES = libmath.la
libmath_la_LIBADD = $(LIBMATHOBJS)