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-rw-r--r--configure.ac5
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 3315855d..4d069b87 100644
--- a/configure.ac
+++ b/configure.ac
@@ -83,6 +83,11 @@ AC_PROG_CC
gl_EARLY
AC_PROG_RANLIB
+# grep never invokes mbrtowc or mbrlen on empty input,
+# so don't worry about this common bug,
+# as working around it would merely slow grep down.
+gl_cv_func_mbrtowc_empty_input='assume yes'
+
dnl Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_SIZE_T
AC_C_CONST