diff --git a/hdf5-1.6.6-signal.patch b/hdf5-1.6.6-signal.patch
new file mode 100644
index 0000000..9adb635
--- /dev/null
+++ b/hdf5-1.6.6-signal.patch
@@ -0,0 +1,45 @@
+--- hdf5-1.6.5/src/H5detect.c.orig	2005-09-12 19:18:23.000000000 +0200
++++ hdf5-1.6.5/src/H5detect.c	2005-11-15 18:25:36.030721792 +0100
+@@ -106,7 +106,7 @@
+ static void detect_C99_integers64(void);
+ static void detect_alignments(void);
+ static size_t align_g[] = {1, 2, 4, 8, 16};
+-static jmp_buf jbuf_g;
++static sigjmp_buf jbuf_g;
+ 
+  
+ /*-------------------------------------------------------------------------
+@@ -360,7 +360,7 @@
+     void		(*_handler2)(int) = signal(SIGSEGV, sigsegv_handler);	\
+ 									      \
+     _buf = (char*)malloc(sizeof(TYPE)+align_g[NELMTS(align_g)-1]);		      \
+-    if (setjmp(jbuf_g)) _ano++;						      \
++    if (sigsetjmp(jbuf_g, 1)) _ano++;						      \
+     if (_ano<NELMTS(align_g)) {						      \
+ 	*((TYPE*)(_buf+align_g[_ano])) = _val; /*possible SIGBUS or SEGSEGV*/	\
+ 	_val2 = *((TYPE*)(_buf+align_g[_ano]));	/*possible SIGBUS or SEGSEGV*/	\
+@@ -376,7 +376,7 @@
+ 	    memcpy(_buf+align_g[_ano]+(INFO.offset/8),((char *)&_val)+(INFO.offset/8),(size_t)(INFO.precision/8)); \
+ 	_val2 = *((TYPE*)(_buf+align_g[_ano]));				      \
+ 	if(_val!=_val2)							      \
+-	    longjmp(jbuf_g, 1);						      \
++	    siglongjmp(jbuf_g, 1);						      \
+ 	/* End Cray Check */						      \
+ 	(INFO.align)=align_g[_ano];					      \
+     } else {								      \
+@@ -460,7 +460,7 @@
+ sigsegv_handler(int UNUSED signo)
+ {
+     signal(SIGSEGV, sigsegv_handler);
+-    longjmp(jbuf_g, 1);
++    siglongjmp(jbuf_g, 1);
+ }
+ 
+  
+@@ -485,7 +485,7 @@
+ sigbus_handler(int UNUSED signo)
+ {
+     signal(SIGBUS, sigbus_handler);
+-    longjmp(jbuf_g, 1);
++    siglongjmp(jbuf_g, 1);
+ }
diff --git a/hdf5-1.6.6-sparc.patch b/hdf5-1.6.6-sparc.patch
new file mode 100644
index 0000000..2f0f7e4
--- /dev/null
+++ b/hdf5-1.6.6-sparc.patch
@@ -0,0 +1,18 @@
+--- hdf5-1.6.6.orig/fortran/src/H5f90i.h	2008-01-06 11:51:45.000000000 +0200
++++ hdf5-1.6.6/fortran/src/H5f90i.h	2008-01-06 12:15:59.000000000 +0200
+@@ -116,6 +116,15 @@
+ typedef int               size_t_f;
+ #define FNAME_POST_UNDERSCORE
+ 
++/* sparc32/64 specific definitions */
++#elif (defined __sparc__ || defined __sparc64__)
++
++typedef long long         haddr_t_f;
++typedef long long         hsize_t_f;
++typedef long long         hssize_t_f;
++typedef int               size_t_f;
++#define FNAME_POST_UNDERSCORE
++
+ /* IA64 specific definitions */
+ #elif defined __ia64
+ 
diff --git a/hdf5.spec b/hdf5.spec
index 1a1792e..8b45467 100644
--- a/hdf5.spec
+++ b/hdf5.spec
@@ -1,6 +1,6 @@
 Name: hdf5
 Version: 1.6.6
-Release: 3%{?dist}
+Release: 4%{?dist}
 Summary: A general purpose library and file format for storing scientific data
 License: BSD
 Group: System Environment/Libraries
@@ -9,7 +9,9 @@ Source0: ftp://ftp.hdfgroup.org/HDF5/current/src/%{name}-%{version}.tar.gz
 Patch1: hdf5-1.6.4-destdir.patch
 Patch2: hdf5-1.6.4-norpath.patch
 Patch3: hdf5-1.6.6-tail.patch
+Patch4: hdf5-1.6.6-signal.patch
 Patch5: hdf5-1.6.4-ppc.patch
+Patch6: hdf5-1.6.6-sparc.patch
 Patch7: hdf5-1.6.5-x86_64.patch
 Patch8: hdf5-1.6.5-sort.patch
 Patch10: hdf5-1.6.5-open.patch
@@ -39,7 +41,9 @@ HDF5 development headers and libraries.
 %patch1 -p1 -b .destdir
 %patch2 -p1 -b .norpath
 %patch3 -p1 -b .tail
+%patch4 -p1 -b .signal
 %patch5 -p1 -b .ppc
+%patch6 -p1 -b .sparc
 %patch7 -p1 -b .x86_64
 %patch8 -p1 -b .sort
 %patch10 -p1 -b .open
@@ -107,6 +111,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Mon Jan  7 2008 Orion Poplawski <orion@cora.nwra.com> 1.6.6-4
+- Add patches to support sparc (bug #427651)
+
 * Tue Dec  4 2007 Orion Poplawski <orion@cora.nwra.com> 1.6.6-3
 - Rebuild against new openssl