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_4.2.1.bb b/meta/recipes-support/gmp/gmp_4.2.1.bb
new file mode 100644
index 0000000000..928c01a5bb
--- /dev/null
+++ b/meta/recipes-support/gmp/gmp_4.2.1.bb
@@ -0,0 +1,15 @@
+require gmp.inc
+
+LICENSE = "LGPLv2.1+ & GPLv2+"
+LICENSE_${PN} = "LGPLv2.1+"
+
+LIC_FILES_CHKSUM = "file://COPYING;md5=892f569a555ba9c07a568a7c0c4fa63a \
+                    file://COPYING.LIB;md5=fbc093901857fcd118f065f900982c24 \
+                    file://gmp-h.in;beginline=6;endline=21;md5=e056f74a12c3277d730dbcfb85d2ca34"
+
+SRC_URI += "file://disable-stdc.patch \
+            file://gmp_fix_for_automake-1.12.patch \
+            "
+
+SRC_URI[md5sum] = "091c56e0e1cca6b09b17b69d47ef18e3"
+SRC_URI[sha256sum] = "d07ffcb37eecec35c5ec72516d10b35fdf6e6fef1fcf1dcd37e30b8cbf8bf941"