X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=configure.ac;h=0ddae678cbb254b197ad8cfcec5ef8adb2b71619;hb=0fc409bdfa6c69ade5ae5d1cfb50b0a827cc9f1f;hp=4ba4fffd42b48220fa298bfcd8b62f32c0f9ee29;hpb=aaacd3696e258dfeffc81177b27898535775819f;p=lha%2Flha.git

diff --git a/configure.ac b/configure.ac
index 4ba4fff..0ddae67 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,6 +65,34 @@ if test $ac_header_dirent = no; then
   AC_LIBOBJ(lhdir)
 fi
 
+# checking whether 8 bit clean or not
+AC_CACHE_CHECK([whether strchr()/strrchr() is 8bit clean],
+  [lha_cv_strchr_8bit_clean],
+  AC_TRY_RUN([
+#if STDC_HEADERS
+# include <string.h>
+#else
+# if !HAVE_STRCHR
+#  define strchr index
+#  define strrchr rindex
+# endif
+char *strchr (), *strrchr ();
+#endif
+
+main()
+{
+  char *s = "\xff";
+  if (strchr(s, 0xff) != s) return 1;
+  if (strchr(s, '\xff') != s) return 1;
+  return 0; /* ok */
+}
+], lha_cv_strchr_8bit_clean=yes,lha_cv_strchr_8bit_clean=no))
+
+if test $ac_cv_shell_true_works = yes; then
+  AC_DEFINE(STRCHR_8BIT_CLEAN, 1,
+	    [Define to 1 if strchr()/strrchr() works correctly.])
+fi
+
 # support kanji code conversion
 AC_SUBST(DEF_KCODE)
 AC_ARG_ENABLE(text_conv,