fi
AC_SUBST(NO_C99_FORMAT)
#
+# Define NO_REGEX if you have no or inferior regex support in your C library.
+AC_CACHE_CHECK([whether the platform regex can handle null bytes],
+ [ac_cv_c_excellent_regex], [
+AC_EGREP_CPP(yippeeyeswehaveit,
+ AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+#include <regex.h>
+],
+[#ifdef REG_STARTEND
+yippeeyeswehaveit
+#endif
+]),
+ [ac_cv_c_excellent_regex=yes],
+ [ac_cv_c_excellent_regex=no])
+])
+if test $ac_cv_c_excellent_regex = yes; then
+ NO_REGEX=
+else
+ NO_REGEX=YesPlease
+fi
+AC_SUBST(NO_REGEX)
+#
# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
# when attempting to read from an fopen'ed directory.
AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],
[NO_STRCASESTR=YesPlease])
AC_SUBST(NO_STRCASESTR)
#
+# Define NO_STRTOK_R if you don't have strtok_r
+GIT_CHECK_FUNC(strtok_r,
+[NO_STRTOK_R=],
+[NO_STRTOK_R=YesPlease])
+AC_SUBST(NO_STRTOK_R)
+#
# Define NO_MEMMEM if you don't have memmem.
GIT_CHECK_FUNC(memmem,
[NO_MEMMEM=],