gmp: Bring back version 4.2.1 (LGPL 2.1+)

gmp 4.2.1 was removed in f181c6ce8b apparently accidentally: It
was not noticed that 4.2.1 is LGPL 2.1 (and not GPL) so provides
a useful alternative to the newer "GPLv2 | LGPLv3" version.

* Reintroduce 4.2.1. The source includes files that are GPL but the
  library package is LGPL 2.1+
* Also reintroduce the two patches removed in f181c6ce8b.
* Refactor gmp.inc: gmp 6.0.0 build should not be affected in any way.
* Update 6.0.0 license from "GPLv2 | LGPLv3" to "GPLv2+ | LGPLv3+".

[YOCTO #8197]

(From OE-Core rev: 1adec83621f36a3dd748990c307ca4ebebcdd554)

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/meta/recipes-support/gmp/gmp-6.0.0/use-includedir.patch b/meta/recipes-support/gmp/gmp-6.0.0/use-includedir.patch
new file mode 100644
index 0000000000..74904a2530
--- /dev/null
+++ b/meta/recipes-support/gmp/gmp-6.0.0/use-includedir.patch
@@ -0,0 +1,15 @@
+Upstream-Status: Pending
+
+Index: gmp-4.2.4/Makefile.am
+===================================================================
+--- gmp-4.2.4.orig/Makefile.am  2008-09-10 19:31:27.000000000 +0000
++++ gmp-4.2.4/Makefile.am       2009-07-06 20:19:19.000000000 +0000
+@@ -106,7 +106,7 @@
+ # but anyone knowledgable enough to be playing with exec_prefix will be able
+ # to address that.
+ #
+-includeexecdir = $(exec_prefix)/include
++includeexecdir = $(includedir)
+ include_HEADERS = $(GMPXX_HEADERS_OPTION)
+ nodist_includeexec_HEADERS = gmp.h $(MPBSD_HEADERS_OPTION)
+ lib_LTLIBRARIES = libgmp.la $(GMPXX_LTLIBRARIES_OPTION) $(MPBSD_LTLIBRARIES_OPTION)