diff options
| -rwxr-xr-x | configure.ac | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index fe389ebb35..628e0c8afc 100755 --- a/configure.ac +++ b/configure.ac @@ -295,6 +295,7 @@ AC_C_FLAG([-Wmissing-declarations]) AC_C_FLAG([-Wpointer-arith]) AC_C_FLAG([-Wbad-function-cast]) AC_C_FLAG([-Wwrite-strings]) +AC_C_FLAG([-Wundef]) if test "$enable_gcc_ultra_verbose" = "yes" ; then AC_C_FLAG([-Wcast-qual]) AC_C_FLAG([-Wstrict-prototypes]) |