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-rw-r--r--libiberty/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/libiberty/configure.in b/libiberty/configure.in
index 56e8a198321..8c4fe1cf909 100644
--- a/libiberty/configure.in
+++ b/libiberty/configure.in
@@ -101,6 +101,7 @@ AC_CHECK_TOOL(RANLIB, ranlib, :)
GCC_NO_EXECUTABLES
AC_PROG_CC
+AC_PROG_CPP_WERROR
if test x$GCC = xyes; then
ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'