diff --git a/CHANGES b/CHANGES
index a89bd82d3..e6b1de5c3 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,7 @@
 CHANGES IN FLTK 1.3.3
 
+	- Removed autoconf/configure and CMake tests and defines for
+	  unused function strtoll().
 	- Fixed access of protected member (STR #2903)
 	- Implemented support for the Mac OS text input system that deals with character composition
 	  and input of languages with large character sets (e.g., Chinese and Japanese). This
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fb7ec8692..8693bb736 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -179,7 +179,6 @@ CHECK_FUNCTION_EXISTS(strcasecmp             HAVE_STRCASECMP)
 
 CHECK_FUNCTION_EXISTS(strlcat                HAVE_STRLCAT)
 CHECK_FUNCTION_EXISTS(strlcpy                HAVE_STRLCPY)
-CHECK_FUNCTION_EXISTS(strtoll                HAVE_STRTOLL)
 CHECK_FUNCTION_EXISTS(vsnprintf              HAVE_VSNPRINTF)
 
 set(CMAKE_REQUIRED_LIBRARIES)
diff --git a/configh.cmake.in b/configh.cmake.in
index 1afef5a31..b2f10ece0 100644
--- a/configh.cmake.in
+++ b/configh.cmake.in
@@ -292,16 +292,6 @@
 #  define FLTK_LLCAST	(long)
 #endif /* HAVE_LONG_LONG */
 
-/*
- * Do we have the strtoll() function?
- */
-
-#cmakedefine HAVE_STRTOLL @HAVE_STRTOLL@
-
-#ifndef HAVE_STRTOLL
-#  define strtoll(nptr,endptr,base) strtol((nptr), (endptr), (base))
-#endif /* !HAVE_STRTOLL */
-
 /*
  * Do we have the dlsym() function and header?
  */
diff --git a/configh.in b/configh.in
index 4a806e475..028313c70 100644
--- a/configh.in
+++ b/configh.in
@@ -297,16 +297,6 @@
 #  define FLTK_LLCAST	(long)
 #endif /* HAVE_LONG_LONG */
 
-/*
- * Do we have the strtoll() function?
- */
-
-#undef HAVE_STRTOLL
-
-#ifndef HAVE_STRTOLL
-#  define strtoll(nptr,endptr,base) strtol((nptr), (endptr), (base))
-#endif /* !HAVE_STRTOLL */
-
 /*
  * Do we have the dlsym() function and header?
  */
diff --git a/configure.in b/configure.in
index e27c42da1..b1cee59e2 100644
--- a/configure.in
+++ b/configure.in
@@ -587,8 +587,6 @@ if test $ac_cv_c_long_long = yes; then
 	AC_DEFINE(HAVE_LONG_LONG)
 fi
 
-AC_CHECK_FUNC(strtoll, AC_DEFINE(HAVE_STRTOLL))
-
 dnl Check for dlopen/dlsym...
 AC_SEARCH_LIBS(dlsym, dl, AC_DEFINE(HAVE_DLSYM))
 AC_CHECK_HEADER(dlfcn.h, AC_DEFINE(HAVE_DLFCN_H))