Patches for boost on RHEL/Centos 6

[Jason Bacon <bacon4000%gmail.com@localhost>]

meta-pkgs/boost and devel/boost-libs both indicate that GCC 4.5 is required.

However, the boost packages build fine with the patched GCC 4.4 on 
RHEL/CentOS 6.

Attached are patches to eliminate the GCC 4.5 dependency where it isn't 
needed.

Regards,

    Jason

--
Never drink coke in a moving elevator.  The elevator's motion coupled
with the chemicals in coke produce hallucinations.  People tend to
change into lizards and attack without warning, and large bats usually
fly in the window.  Additionally, you begin to believe that elevators
have windows.

diff -ruN --exclude .svn ../meta-pkgs/boost/Makefile.common boost/Makefile.common
--- ../meta-pkgs/boost/Makefile.common	2016-01-24 14:08:30.619176081 -0600
+++ boost/Makefile.common	2016-01-24 14:07:52.061568949 -0600
@@ -42,6 +42,8 @@
 .    if ${MACHINE_ARCH} != "sparc64"
 GCC_REQD+=		4.6
 .    endif
+.  elif ${OPSYS} == "Linux" && exists(/etc/redhat-release)
+GCC_REQD+=		4.4
 .  else
 GCC_REQD+=		4.5
 .  endif

diff -ruN --exclude .svn ../devel/boost-libs/buildlink3.mk boost-libs/buildlink3.mk
--- ../devel/boost-libs/buildlink3.mk	2016-01-24 14:08:38.294496147 -0600
+++ boost-libs/buildlink3.mk	2016-01-24 14:06:22.414828408 -0600
@@ -14,6 +14,8 @@
 # Sync with meta-pkgs/boost/Makefile.common
 .if ${OPSYS} == "OpenBSD"
 GCC_REQD+=		4.6
+.elif ${OPSYS} == "Linux" && exists(/etc/redhat-release)
+GCC_REQD+=		4.4
 .else
 GCC_REQD+=		4.5
 .endif