1- Fix build with gcc-42;

2- Correct pkg-descr.

Reported by:	pointyhat via pav (1)

textproc/sowing/files/patch-src_sys_arch.c

@@ -0,0 +1,21 @@
+--- src/sys/arch.c.orig	Wed Sep 20 20:01:15 2000
++++ src/sys/arch.c	Fri Jul  6 23:08:27 2007
+@@ -11,7 +11,7 @@
+     defined(NeXT)  || defined(WIN32)
+ #undef HAS_UNAME
+ #endif
+-#if defined(dec5000) || defined(rs6000)
++#if defined(dec5000) || defined(rs6000) || defined(__FreeBSD__)
+ #undef HAS_UNAME
+ #endif
+ #if defined(sun4) && defined(sun4Pre41)
+@@ -91,6 +91,9 @@
+ 
+ #elif defined(NeXT)
+     strncpy( str, "NeXT", slen );
++
++#elif defined(__FreeBSD__)
++    strncpy( str, "FreeBSD", slen );
+ 
+ #else
+     strncpy( str, "Unknown", slen );

textproc/sowing/pkg-descr

@@ -1,4 +1,4 @@
 Text processing tools developed by Bill Gropp.
-It is required to build the PETSc & MPICH documentation.
+It might be used to build the PETSc & MPICH documentation.
 
 WWW:  http://www-unix.mcs.anl.gov/petsc/petsc-2/developers/