1 files changed, 39 insertions, 0 deletions

diff --git a/gl/m4/strcase.m4 b/gl/m4/strcase.m4
new file mode 100644
index 00000000..ae827907
--- /dev/null
+++ b/gl/m4/strcase.m4
@@ -0,0 +1,39 @@
+# strcase.m4 serial 4
+dnl Copyright (C) 2002, 2005-2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_STRCASE],
+[
+  gl_FUNC_STRCASECMP
+  gl_FUNC_STRNCASECMP
+])
+
+AC_DEFUN([gl_FUNC_STRCASECMP],
+[
+  dnl No known system has a strcasecmp() function that works correctly in
+  dnl multibyte locales. Therefore we use our version always.
+  AC_LIBOBJ(strcasecmp)
+  gl_PREREQ_STRCASECMP
+])
+
+AC_DEFUN([gl_FUNC_STRNCASECMP],
+[
+  AC_REPLACE_FUNCS(strncasecmp)
+  AC_CHECK_DECLS(strncasecmp)
+  if test $ac_cv_func_strncasecmp = no; then
+    gl_PREREQ_STRNCASECMP
+  fi
+])
+
+# Prerequisites of lib/strcasecmp.c.
+AC_DEFUN([gl_PREREQ_STRCASECMP], [
+  AC_REQUIRE([gl_FUNC_MBRTOWC])
+  :
+])
+
+# Prerequisites of lib/strncasecmp.c.
+AC_DEFUN([gl_PREREQ_STRNCASECMP], [
+  :
+])