diff --git a/utils/at/patches/100-cross-compile.patch b/utils/at/patches/100-cross-compile.patch
deleted file mode 100644
index fbbc7e4..0000000
--- a/utils/at/patches/100-cross-compile.patch
+++ /dev/null
@@ -1,30 +0,0 @@
---- a/configure
-+++ b/configure
-@@ -3458,27 +3458,6 @@ $as_echo "yes" >&6; }
- $as_echo "no" >&6; }
-     ;;
- esac
--{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Trying to compile a trivial ANSI C program" >&5
--$as_echo_n "checking Trying to compile a trivial ANSI C program... " >&6; }
--if test "$cross_compiling" = yes; then :
--  as_fn_error $? "Could not compile and run even a trivial ANSI C program - check CC." "$LINENO" 5
--else
--  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
--/* end confdefs.h.  */
-- main(int ac, char **av) { return 0; }
--_ACEOF
--if ac_fn_c_try_run "$LINENO"; then :
--  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
--$as_echo "yes" >&6; }
--else
--  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
--$as_echo "no" >&6; }
--    as_fn_error $? "Could not compile and run even a trivial ANSI C program - check CC." "$LINENO" 5
--fi
--rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
--  conftest.$ac_objext conftest.beam conftest.$ac_ext
--fi
--
- 
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking __attribute__((noreturn))" >&5
- $as_echo_n "checking __attribute__((noreturn))... " >&6; }
diff --git a/utils/at/patches/100-remove-glibc-assumption.patch b/utils/at/patches/100-remove-glibc-assumption.patch
new file mode 100644
index 0000000..a780f45
--- /dev/null
+++ b/utils/at/patches/100-remove-glibc-assumption.patch
@@ -0,0 +1,60 @@
+From 7f811d9c4ebc9444e613e251c31d6bf537a24dc1 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 13 Apr 2015 16:35:30 -0700
+Subject: [PATCH] remove glibc assumption
+
+glibc time.h header has an undocumented __isleap macro
+that we are using anf musl is missing it.
+Since it is undocumented & does not appear
+on any other libc, stop using it and just define the macro in
+locally  instead.
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+[patch from: http://patchwork.openembedded.org/patch/91893/ ]
+Signed-off-by: Phil Eichinger <phil@zankapfel.net>
+---
+ parsetime.y | 11 +++++++----
+ 1 file changed, 7 insertions(+), 4 deletions(-)
+
+diff --git a/parsetime.y b/parsetime.y
+index 7005e88..324e6d3 100644
+--- a/parsetime.y
++++ b/parsetime.y
+@@ -8,6 +8,9 @@
+ 
+ #define YYDEBUG 1
+ 
++#define is_leap_year(y) \
++    ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
++
+ struct tm exectm;
+ static int isgmt;
+ static int yearspec;
+@@ -217,8 +220,8 @@ date            : month_name day_number
+ 				 mnum == 12) && dnum > 31)
+ 			    || ((mnum ==  4 || mnum ==  6 || mnum ==  9 ||
+ 			         mnum == 11) && dnum > 30)
+-			    || (mnum ==  2 && dnum > 29 &&  __isleap(ynum+1900))
+-			    || (mnum ==  2 && dnum > 28 && !__isleap(ynum+1900))
++			    || (mnum ==  2 && dnum > 29 &&  is_leap_year(ynum+1900))
++			    || (mnum ==  2 && dnum > 28 && !is_leap_year(ynum+1900))
+ 			   )
+ 			{
+ 			    yyerror("Error in day of month");
+@@ -261,8 +264,8 @@ date            : month_name day_number
+ 				 mnum == 12) && dnum > 31)
+ 			    || ((mnum ==  4 || mnum ==  6 || mnum ==  9 ||
+ 			         mnum == 11) && dnum > 30)
+-			    || (mnum ==  2 && dnum > 29 &&  __isleap(ynum+1900))
+-			    || (mnum ==  2 && dnum > 28 && !__isleap(ynum+1900))
++			    || (mnum ==  2 && dnum > 29 &&  is_leap_year(ynum+1900))
++			    || (mnum ==  2 && dnum > 28 && !is_leap_year(ynum+1900))
+ 			   )
+ 			{
+ 			    yyerror("Error in day of month");
+-- 
+2.1.4
+
+