# We need a C compiler.
CC='@CC@'
-CFLAGS='@CFLAGS@'
-
-# We need to know if the compiler is GCC.
-GCC='@GCC@'
+CFLAGS='@CFLAGS@ @WARNING_CFLAGS@'
# We need `config.h'.
-CPPFLAGS="-I $top_buildpath @CPPFLAGS@"
+CPPFLAGS="-I$abs_top_builddir @CPPFLAGS@"