diff --git a/base/math.jl b/base/math.jl
index 194c620f0af31..0e28d194932d4 100644
--- a/base/math.jl
+++ b/base/math.jl
@@ -177,7 +177,6 @@ log(b::Number, x::Number) = log(promote(b,x)...)
 # type specific math functions
 
 const libm = Base.libm_name
-const openspecfun = "libopenspecfun"
 
 # functions with no domain error
 """
@@ -701,7 +700,7 @@ function ieee754_rem_pio2(x::Float64)
     # https://github.com/JuliaLang/openspecfun/blob/master/rem_pio2/e_rem_pio2.c
 
     y = [0.0,0.0]
-    n = ccall((:__ieee754_rem_pio2, openspecfun), Cint, (Float64,Ptr{Float64}), x, y)
+    n = ccall(:__ieee754_rem_pio2, Cint, (Float64,Ptr{Float64}), x, y)
     return (n,y)
 end
 
diff --git a/src/Makefile b/src/Makefile
index a6bc4b4f5a5f7..b2a61f2a9369a 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -94,8 +94,8 @@ FLAGS += -DLLVM_SHLIB
 endif # USE_LLVM_SHLIB == 1
 
 COMMON_LIBS := -L$(build_shlibdir) -L$(build_libdir) $(LIBUV) $(LIBUTF8PROC) $(NO_WHOLE_ARCHIVE) $(LLVMLINK) $(OSLIBS)
-DEBUG_LIBS := $(WHOLE_ARCHIVE) $(BUILDDIR)/flisp/libflisp-debug.a $(WHOLE_ARCHIVE) $(BUILDDIR)/support/libsupport-debug.a $(COMMON_LIBS)
-RELEASE_LIBS := $(WHOLE_ARCHIVE) $(BUILDDIR)/flisp/libflisp.a $(WHOLE_ARCHIVE) $(BUILDDIR)/support/libsupport.a $(COMMON_LIBS)
+DEBUG_LIBS := $(WHOLE_ARCHIVE) $(BUILDDIR)/flisp/libflisp-debug.a $(WHOLE_ARCHIVE) $(BUILDDIR)/support/libsupport-debug.a $(WHOLE_ARCHIVE) $(BUILDDIR)/specfun/libspecfun-debug.a $(COMMON_LIBS)
+RELEASE_LIBS := $(WHOLE_ARCHIVE) $(BUILDDIR)/flisp/libflisp.a $(WHOLE_ARCHIVE) $(BUILDDIR)/support/libsupport.a $(WHOLE_ARCHIVE) $(BUILDDIR)/specfun/libspecfun.a $(COMMON_LIBS)
 
 OBJS := $(SRCS:%=$(BUILDDIR)/%.o)
 DOBJS := $(SRCS:%=$(BUILDDIR)/%.dbg.obj)
@@ -203,12 +203,18 @@ $(BUILDDIR)/support/libsupport.a: $(SRCDIR)/support/*.h $(SRCDIR)/support/*.c
 $(BUILDDIR)/support/libsupport-debug.a: $(SRCDIR)/support/*.h $(SRCDIR)/support/*.c
 	$(MAKE) -C $(SRCDIR)/support debug BUILDDIR='$(abspath $(BUILDDIR)/support)'
 
+$(BUILDDIR)/specfun/libspecfun.a: $(SRCDIR)/specfun/*.h $(SRCDIR)/specfun/*.c $(BUILDDIR)/support/libsupport.a
+	$(MAKE) -C $(SRCDIR)/specfun BUILDDIR='$(abspath $(BUILDDIR)/specfun)'
+
+$(BUILDDIR)/specfun/libspecfun-debug.a: $(SRCDIR)/specfun/*.h $(SRCDIR)/specfun/*.c $(BUILDDIR)/support/libsupport-debug.a
+	$(MAKE) -C $(SRCDIR)/specfun debug BUILDDIR='$(abspath $(BUILDDIR)/specfun)'
+
 $(FLISP_EXECUTABLE_release): $(BUILDDIR)/flisp/libflisp.a
-$(BUILDDIR)/flisp/libflisp.a: $(addprefix $(SRCDIR)/,flisp/*.h flisp/*.c) $(BUILDDIR)/support/libsupport.a
+$(BUILDDIR)/flisp/libflisp.a: $(addprefix $(SRCDIR)/,flisp/*.h flisp/*.c) $(BUILDDIR)/specfun/libspecfun.a
 	$(MAKE) -C $(SRCDIR)/flisp BUILDDIR='$(abspath $(BUILDDIR)/flisp)'
 
 $(FLISP_EXECUTABLE_debug): $(BUILDDIR)/flisp/libflisp-debug.a
-$(BUILDDIR)/flisp/libflisp-debug.a: $(addprefix $(SRCDIR)/,flisp/*.h flisp/*.c) $(BUILDDIR)/support/libsupport-debug.a
+$(BUILDDIR)/flisp/libflisp-debug.a: $(addprefix $(SRCDIR)/,flisp/*.h flisp/*.c) $(BUILDDIR)/specfun/libspecfun-debug.a
 	$(MAKE) -C $(SRCDIR)/flisp debug BUILDDIR='$(abspath $(BUILDDIR)/flisp)'
 
 $(BUILDDIR)/julia_version.h: $(JULIAHOME)/VERSION
@@ -255,7 +261,7 @@ else
   SONAME_DEBUG :=
 endif
 
-$(build_shlibdir)/libjulia-debug.$(JL_MAJOR_MINOR_SHLIB_EXT): $(SRCDIR)/julia.expmap $(DOBJS) $(BUILDDIR)/flisp/libflisp-debug.a $(BUILDDIR)/support/libsupport-debug.a $(LIBUV)
+$(build_shlibdir)/libjulia-debug.$(JL_MAJOR_MINOR_SHLIB_EXT): $(SRCDIR)/julia.expmap $(DOBJS) $(BUILDDIR)/flisp/libflisp-debug.a $(BUILDDIR)/support/libsupport-debug.a $(BUILDDIR)/specfun/libspecfun-debug.a $(LIBUV)
 	@$(call PRINT_LINK, $(CXXLD) $(CXXFLAGS) $(CXXLDFLAGS) $(DEBUGFLAGS) $(DOBJS) $(RPATH_LIB) -o $@ $(LDFLAGS) $(JLIBLDFLAGS) $(DEBUG_LIBS) $(SONAME_DEBUG))
 	$(INSTALL_NAME_CMD)libjulia-debug.$(SHLIB_EXT) $@
 ifneq ($(OS), WINNT)
@@ -264,13 +270,13 @@ ifneq ($(OS), WINNT)
 endif
 	$(DSYMUTIL) $@
 
-$(BUILDDIR)/libjulia-debug.a: $(SRCDIR)/julia.expmap $(DOBJS) $(BUILDDIR)/flisp/libflisp-debug.a $(BUILDDIR)/support/libsupport-debug.a
+$(BUILDDIR)/libjulia-debug.a: $(SRCDIR)/julia.expmap $(DOBJS) $(BUILDDIR)/flisp/libflisp-debug.a $(BUILDDIR)/support/libsupport-debug.a $(BUILDDIR)/specfun/libspecfun-debug.a
 	rm -f $@
 	@$(call PRINT_LINK, ar -rcs $@ $(DOBJS))
 
 libjulia-debug: $(build_shlibdir)/libjulia-debug.$(JL_MAJOR_MINOR_SHLIB_EXT) $(PUBLIC_HEADER_TARGETS)
 
-$(build_shlibdir)/libjulia.$(JL_MAJOR_MINOR_SHLIB_EXT): $(SRCDIR)/julia.expmap $(OBJS) $(BUILDDIR)/flisp/libflisp.a $(BUILDDIR)/support/libsupport.a $(LIBUV)
+$(build_shlibdir)/libjulia.$(JL_MAJOR_MINOR_SHLIB_EXT): $(SRCDIR)/julia.expmap $(OBJS) $(BUILDDIR)/flisp/libflisp.a $(BUILDDIR)/support/libsupport.a $(BUILDDIR)/specfun/libspecfun.a $(LIBUV)
 	@$(call PRINT_LINK, $(CXXLD) $(CXXFLAGS) $(CXXLDFLAGS) $(SHIPFLAGS) $(OBJS) $(RPATH_LIB) -o $@ $(LDFLAGS) $(JLIBLDFLAGS) $(RELEASE_LIBS) $(SONAME))
 	$(INSTALL_NAME_CMD)libjulia.$(SHLIB_EXT) $@
 ifneq ($(OS), WINNT)
@@ -279,7 +285,7 @@ ifneq ($(OS), WINNT)
 endif
 	$(DSYMUTIL) $@
 
-$(BUILDDIR)/libjulia.a: julia.expmap $(OBJS) $(BUILDDIR)/flisp/libflisp.a $(BUILDDIR)/support/libsupport.a
+$(BUILDDIR)/libjulia.a: julia.expmap $(OBJS) $(BUILDDIR)/flisp/libflisp.a $(BUILDDIR)/support/libsupport.a $(BUILDDIR)/specfun/libspecfun.a
 	rm -f $@
 	@$(call PRINT_LINK, ar -rcs $@ $(OBJS))
 libjulia-release: $(build_shlibdir)/libjulia.$(JL_MAJOR_MINOR_SHLIB_EXT) $(PUBLIC_HEADER_TARGETS)
@@ -296,7 +302,10 @@ clean-flisp:
 clean-support:
 	-$(MAKE) -C $(SRCDIR)/support clean BUILDDIR='$(abspath $(BUILDDIR)/support)'
 
+clean-specfun:
+	-$(MAKE) -C $(SRCDIR)/specfun clean BUILDDIR='$(abspath $(BUILDDIR)/specfun)'
+
 
-cleanall: clean clean-flisp clean-support
+cleanall: clean clean-flisp clean-support clean-specfun
 
 .PHONY: default all debug release clean cleanall clean-* libccalltest julia_flisp.boot.inc.phony
diff --git a/src/specfun/Makefile b/src/specfun/Makefile
new file mode 100644
index 0000000000000..56e69ddeae508
--- /dev/null
+++ b/src/specfun/Makefile
@@ -0,0 +1,50 @@
+JULIAHOME := $(abspath ../..)
+BUILDDIR := .
+include $(JULIAHOME)/Make.inc
+
+override CFLAGS_add =
+override CPPFLAGS_add =
+
+ifeq ($(USECLANG),1)
+  override CFLAGS_add += -fno-builtin
+endif
+
+ifeq ($(USEGCC),1)
+  override CFLAGS_add += -fno-gnu89-inline -std=c99
+endif
+
+ifeq ($(USE_SYSTEM_LIBM),0)
+  override CPPFLAGS_add += -DUSE_OPENLIBM -I$(build_includedir) -I$(build_includedir)/openlibm
+endif
+
+override CFLAGS += $(JCFLAGS) -O3 -std=c99
+ifeq ($(USEICC),1)
+  override CFLAGS += -fp-model precise
+endif
+
+ifeq ($(OS),WINNT)
+  override CFLAGS_add += -nodefaultlibs
+else
+  override CFLAGS_add += -fPIC
+endif
+
+SRCS := e_rem_pio2.c e_rem_pio2f.c k_rem_pio2.c
+OBJS := $(addprefix $(BUILDDIR)/,$(patsubst %.c,%.o,$(SRCS)))
+
+default: $(JULIA_BUILD_MODE)
+
+all: release debug
+release: $(BUILDDIR)/libspecfun.a
+debug: $(BUILDDIR)/libspecfun-debug.a
+
+$(BUILDDIR)/%.o: $(BUILDDIR)/%.c
+	$(CC) $(CPPFLAGS) $(CPPFLAGS_add) $(CFLAGS_add) $(CFLAGS) -c $< -o $@
+
+$(BUILDDIR)/libspecfun.a: $(OBJS)
+	$(AR) -rcs libspecfun.a $(OBJS)
+
+$(BUILDDIR)/libspecfun-debug.a: $(OBJS)
+	$(AR) -rcs libspecfun-debug.a $(OBJS)
+
+clean:
+	cd $(BUILDDIR) && rm $(OBJS) *.a
diff --git a/src/specfun/libspecfun.a b/src/specfun/libspecfun.a
new file mode 100644
index 0000000000000..39a9ca8929ec7
Binary files /dev/null and b/src/specfun/libspecfun.a differ