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-rw-r--r--Build/source/texk/kpathsea/configure.ac3
1 files changed, 0 insertions, 3 deletions
diff --git a/Build/source/texk/kpathsea/configure.ac b/Build/source/texk/kpathsea/configure.ac
index 97ebdc23d90..84d0d89e4e9 100644
--- a/Build/source/texk/kpathsea/configure.ac
+++ b/Build/source/texk/kpathsea/configure.ac
@@ -35,9 +35,6 @@ AC_PROG_AWK
AC_CHECK_SIZEOF([long])
-dnl Check if <ctype.h> declares isascii.
-AC_CHECK_DECLS([isascii], [], [], [[#include <ctype.h>]])
-
dnl Replacement functions that may be required on ancient broken system.
AC_CHECK_DECLS([putenv])
AC_REPLACE_FUNCS([putenv])