Fix crash in SPI init

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The attached change fixes a crash in SPI init when using
gcc 4.3 or newer by ditching the use of CYGBLD_ATTRIB_C_INIT_PRI.


-- 
Øyvind Harboe
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diff -r 0c51e5cb890a packages/devs/spi/arm/at91/current/src/spi_at91_init.cxx
--- a/packages/devs/spi/arm/at91/current/src/spi_at91_init.cxx	Fri Jul 16 14:53:40 2010 +0000
+++ b/packages/devs/spi/arm/at91/current/src/spi_at91_init.cxx	Wed Aug 11 21:59:27 2010 +0200
@@ -50,7 +50,7 @@
 
 // This file is not needed if we support CYGBLD_ATTRIB_C_INIT_PRI, as the
 // init happens directly in spi_at91.c then.
-#ifndef CYGBLD_ATTRIB_C_INIT_PRI
+#if !CYGBLD_HAS_ATTRIB_C_INIT()
 
 // -------------------------------------------------------------------------
 
diff -r 0c51e5cb890a packages/infra/current/include/cyg_type.h
--- a/packages/infra/current/include/cyg_type.h	Fri Jul 16 14:53:40 2010 +0000
+++ b/packages/infra/current/include/cyg_type.h	Wed Aug 11 21:59:27 2010 +0200
@@ -287,7 +287,11 @@
 #define CYGBLD_ATTRIB_INIT_BEFORE( _pri_ ) CYGBLD_ATTRIB_INIT_PRI(_pri_-100)
 #define CYGBLD_ATTRIB_INIT_AFTER( _pri_ )  CYGBLD_ATTRIB_INIT_PRI(_pri_+100)
 
-#if defined(__GNUC__) && !defined(__cplusplus) && (__GNUC_VERSION__ >= 40300)
+// From C++ we need to be able to tell if we have the init capability available
+// from C
+#define CYGBLD_HAS_ATTRIB_C_INIT() (defined(__GNUC__) && (__GNUC_VERSION__ >= 40300))
+
+#if CYGBLD_HAS_ATTRIB_C_INIT() && !defined(__cplusplus)
 // Equivalents of the above for C functions, available from gcc 4.3 onwards.
 # define CYGBLD_ATTRIB_C_INIT_PRI( _pri_)       __attribute__((constructor (_pri_)))
 # define CYGBLD_ATTRIB_C_INIT_BEFORE( _pri_ )   __attribute__((constructor (_pri_-100)))
-- 
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