From: Vyacheslav Yurkov <Vyacheslav.Yurkov@...>

When applications want to use protoc during the build, the target binary
has to be disabled in order to avoid following error:

| The imported target "protobuf::protoc" references the file
|
| "<application build dir>/recipe-sysroot/usr/bin/protoc-<protobuf version>"
|
| but this file does not exist. Possible reasons include:
|
| * The file was deleted, renamed, or moved to another location.
|
| * An install or uninstall procedure did not complete successfully.
|
| * The installation package was faulty and contained
|
| "<application build dir>/recipe-sysroot/usr/lib/cmake/protobuf/protobuf-targets.cmake"
|
| but not all the files it references.

Signed-off-by: Vyacheslav Yurkov <Vyacheslav.Yurkov@...>
---
meta-oe/recipes-devtools/protobuf/protobuf_3.21.5.bb | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/meta-oe/recipes-devtools/protobuf/protobuf_3.21.5.bb b/meta-oe/recipes-devtools/protobuf/protobuf_3.21.5.bb
index 83dabc9f8..e36179363 100644
--- a/meta-oe/recipes-devtools/protobuf/protobuf_3.21.5.bb
+++ b/meta-oe/recipes-devtools/protobuf/protobuf_3.21.5.bb
@@ -34,6 +34,13 @@ EXTRA_OECMAKE += "\
-Dprotobuf_BUILD_EXAMPLES=OFF \
"
+# Configuration below allows to cross-compile protobuf applications
+# and use native protoc binary in your recipes. In order to use protoc
+# on the target, set protobuf_BUILD_PROTOC_BINARIES to ON in your bbappend
+EXTRA_OECMAKE:append:class-target = " \
+ -Dprotobuf_BUILD_PROTOC_BINARIES=OFF \
+"
+
TEST_SRC_DIR = "examples"
LANG_SUPPORT = "cpp ${@bb.utils.contains('PACKAGECONFIG', 'python', 'python', '', d)}"