3 files changed, 20 insertions, 2 deletions
diff --git a/source4/lib/replace/config.m4 b/source4/lib/replace/config.m4
index 98c491fd38..70d13e40fd 100644
--- a/source4/lib/replace/config.m4
+++ b/source4/lib/replace/config.m4
@@ -45,7 +45,7 @@ AC_CHECK_FUNCS(strtoull __strtoull strtouq strtoll __strtoll strtoq)
 AC_CHECK_FUNCS(seteuid setresuid setegid setresgid chroot bzero strerror)
 AC_CHECK_FUNCS(timegm setenv vsyslog setlinebuf mktime ftruncate chsize rename)
 AC_CHECK_FUNCS(waitpid strnlen strlcpy strlcat innetgr initgroups memmove strdup)
-AC_CHECK_FUNCS(pread pwrite strndup)
+AC_CHECK_FUNCS(pread pwrite strndup strcasestr)
 AC_HAVE_DECL(setresuid, [#include <unistd.h>])
 AC_HAVE_DECL(setresgid, [#include <unistd.h>])
 AC_HAVE_DECL(errno, [#include <errno.h>])
diff --git a/source4/lib/replace/replace.c b/source4/lib/replace/replace.c
index 5e60252a67..d87a009e8c 100644
--- a/source4/lib/replace/replace.c
+++ b/source4/lib/replace/replace.c
@@ -22,6 +22,7 @@
 #include "system/wait.h"
 #include "system/time.h"
 #include "system/network.h"
+#include "system/iconv.h"
 
  void replace_dummy(void);
  void replace_dummy(void) {}
@@ -534,4 +535,17 @@ static ssize_t pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offs
 }
 #endif
 
-
+#ifndef HAVE_STRCASESTR
+char *strcasestr(const char *haystack, const char *needle)
+{
+	const char *s;
+	size_t nlen = strlen(needle);
+	for (s=haystack;*s;s++) {
+		if (toupper(*needle) == toupper(*s) &&
+		    strncasecmp(s, needle, nlen) == 0) {
+			return discard_const_p(char, s);
+		}
+	}
+	return NULL;
+}
+#endif
diff --git a/source4/lib/replace/replace.h b/source4/lib/replace/replace.h
index 572113af8c..e3eef56eeb 100644
--- a/source4/lib/replace/replace.h
+++ b/source4/lib/replace/replace.h
@@ -84,6 +84,10 @@ int setenv(const char *name, const char *value, int overwrite);
 int rename(const char *zfrom, const char *zto);
 #endif
 
+#ifndef HAVE_STRCASESTR
+char *strcasestr(const char *haystack, const char *needle);
+#endif
+
 #ifndef HAVE_FTRUNCATE
 int ftruncate(int f,long l);
 #endif