add libs::libbacktrace v'master-b9e40069'

This library doesn't have any release. Openembedded also uses the git
version.

Author: rhubert

recipes/libs/libbacktrace.yaml

@@ -0,0 +1,20 @@
+inherit: [autotools]
+
+metaEnvironment:
+    PKG_LICENSE: "BSD-3-Clause"
+    PKG_VERSION: "master-b9e40069"
+
+checkoutSCM:
+    scm: git
+    url: ${GITHUB_MIRROR}/ianlancetaylor/libbacktrace.git
+    branch: master
+    commit: b9e40069c0b47a722286b94eb5231f7f05c08713
+
+buildScript: |
+    autotoolsBuild $1
+
+multiPackage:
+    dev:
+        packageScript: autotoolsPackageDev
+    tgt:
+        packageScript: autotoolsPackageTgt

tests/buildall/recipes/all.yaml

@@ -41,6 +41,7 @@ depends:
     - libs::jpeg-turbo-tgt
     - libs::jsonc-tgt
     - libs::libaio-tgt
+    - libs::libbacktrace-tgt
     - libs::libb2-tgt
     - libs::libcap-ng-tgt
     - libs::libconfuse-tgt