[meta-oe][PATCH 1/3] libtommath: add recipe for LibTomMath used by dropbear

[Martin Jansa <martin.jansa@gmail.com>]

* When system-libtom PACKAGECONFIG is used, both libtomcrypt and libtommath
  are used from system and we need a recipes for both.

* libtomcrypt was already added to meta-oe in langdale and PACKAGECONFIG
  was added in dropbear in:
  https://git.openembedded.org/openembedded-core/commit/?id=b7c2edd2d6ded287d8b34dd047ae84d3fd69d4c6

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 .../libtommath/libtommath_1.2.0.bb            | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 meta-oe/recipes-support/libtommath/libtommath_1.2.0.bb

diff --git a/meta-oe/recipes-support/libtommath/libtommath_1.2.0.bb b/meta-oe/recipes-support/libtommath/libtommath_1.2.0.bb
new file mode 100644
index 0000000000..05fe6d079b
--- /dev/null
+++ b/meta-oe/recipes-support/libtommath/libtommath_1.2.0.bb
@@ -0,0 +1,26 @@
+SUMMARY = "LibTomMath is a number theoretic multiple-precision integer library"
+HOMEPAGE = "https://www.libtom.net/LibTomMath"
+SECTION = "libs"
+LICENSE = "Unlicense"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=23e7e0a32e53a2b1d35f5fd9ef053402"
+
+SRC_URI = "git://github.com/libtom/libtommath.git;protocol=https;branch=master"
+
+SRCREV = "6ca6898bf37f583c4cc9943441cd60dd69f4b8f2"
+
+S = "${WORKDIR}/git"
+
+# For libtomcrypt to use libtommath.a and avoid:
+# http://errors.yoctoproject.org/Errors/Details/720465/
+# ld: TOPDIR/tmp-glibc/work/core2-64-oe-linux/libtomcrypt/1.18.2-r0/recipe-sysroot/usr/lib/libtommath.a(bn_mp_cnt_lsb.o): relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC
+CFLAGS += "-fPIC"
+
+EXTRA_OEMAKE = "'PREFIX=${prefix}' 'DESTDIR=${D}' 'LIBPATH=${libdir}' 'CFLAGS=${CFLAGS}'"
+
+do_compile() {
+    oe_runmake -f makefile.shared
+}
+
+do_install() {
+    oe_runmake -f makefile.shared install
+}
-- 
2.41.0