Use proper m4 quotation for AC_CHECK_TOOL usage.

diff --git a/src/microcode/configure.ac b/src/microcode/configure.ac
index 49f78a39640e8f561a1c7aed3487f3075dad819c..6f6ce125f155a4bb783cdbb0d5069e31cbeb6c6d 100644 (file)
--- a/src/microcode/configure.ac
+++ b/src/microcode/configure.ac
@@ -180,7 +180,7 @@ SAVED_CFLAGS=${CFLAGS}
 SAVED_LDFLAGS=${LDFLAGS}
 
 dnl Checks for programs.
-AC_CHECK_TOOL(AS, as)
+AC_CHECK_TOOL([AS], [as])
 AC_PROG_CC
 AC_PROG_CC_STDC
 if test "x${ac_cv_prog_cc_c99}" != xno; then