Merge branch 'master' of github.com:JuliaLang/julia

* 'master' of github.com:JuliaLang/julia:
  Some fixes for building on OS X 10.7. Disable shared library build of readline. We use the static version anyways. Add s_signbit.c to fdlibm - a bit of a kludge

external/Makefile

@@ -71,7 +71,7 @@ readline-$(READLINE_VER)/configure: readline-$(READLINE_VER).tar.gz
 	touch $@
 $(READLINE_OBJ_SOURCE): readline-$(READLINE_VER)/configure
 	cd readline-$(READLINE_VER) && \
-	./configure --prefix=$(EXTROOT) && \
+	./configure --prefix=$(EXTROOT) --disable-shared --enable-static --with-curses && \
 	make
 	touch $@
 $(READLINE_OBJ_TARGET): $(READLINE_OBJ_SOURCE)

external/fdlibm/makefile

@@ -91,7 +91,8 @@ src = 	k_standard.c k_rem_pio2.c \
 	e_log10f.c  s_cbrtf.c       s_log1pf.c    w_dremf.c         \
 	e_log2f.c   s_ceilf.c       s_logbf.c     w_gammaf.c        \
 	e_logf.c    s_copysignf.c   w_lgammaf.c   s_finitef.c       \
-	e_lgammaf_r.c 	b_exp.c	    b_log.c	b_tgamma.c
+	e_lgammaf_r.c 	b_exp.c	    b_log.c	b_tgamma.c \
+	s_signbit.c
 
 obj = 	$(src:%.c=%.o)
 

external/fdlibm/s_signbit.c

@@ -0,0 +1,82 @@
+/*-
+ * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/lib/msun/src/s_signbit.c,v 1.1.30.1.6.1 2010/12/21 17:09:25 kensmith Exp $
+ */
+
+#include "fdlibm.h"
+
+union IEEEf2bits {
+    float f;
+    struct {
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+        unsigned int man :23;
+        unsigned int exp :8;
+        unsigned int sign :1;
+#else /* _BIG_ENDIAN */
+        unsigned int sign :1;
+        unsigned int exp :8;
+        unsigned int man :23;
+#endif
+    } bits;
+};
+
+#define DBL_MANH_SIZE 20
+#define DBL_MANL_SIZE 32
+
+union IEEEd2bits {
+    double d;
+    struct {
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+        unsigned int manl :32;
+        unsigned int manh :20;
+        unsigned int exp :11;
+        unsigned int sign :1;
+#else /* _BIG_ENDIAN */
+        unsigned int sign :1;
+        unsigned int exp :11;
+        unsigned int manh :20;
+        unsigned int manl :32;
+#endif
+    } bits;
+};
+
+int
+signbit(double d)
+{
+    union IEEEd2bits u;
+
+    u.d = d;
+    return (u.bits.sign);
+}
+
+int
+signbitf(float f)
+{
+    union IEEEf2bits u;
+
+    u.f = f;
+    return (u.bits.sign);
+}