KasperskyOS-CE-adaptation.patch

© 2026 AO Kaspersky Lab
This script is licensed under the MIT License

---
 CMakeLists.txt                             |  3 +++
 cmake/abseil-cpp.cmake                     | 10 ++++++++-
 cmake/dependencies.cmake                   |  8 ++++++-
 src/google/protobuf/compiler/subprocess.cc | 26 ++++++++++++++++++++++
 4 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ae3c3246..130f1476 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -160,6 +160,9 @@ find_package(Threads REQUIRED)
 
 set(_protobuf_FIND_ZLIB)
 if (protobuf_WITH_ZLIB)
+  if(KOS)
+    set(ZLIB_USE_STATIC_LIBS ON)
+  endif()
   find_package(ZLIB)
   if (ZLIB_FOUND)
     set(HAVE_ZLIB 1)
diff --git a/cmake/abseil-cpp.cmake b/cmake/abseil-cpp.cmake
index 29d5044a..facc5fb2 100644
--- a/cmake/abseil-cpp.cmake
+++ b/cmake/abseil-cpp.cmake
@@ -21,10 +21,18 @@ if (NOT TARGET absl::strings)
     include(${protobuf_SOURCE_DIR}/cmake/dependencies.cmake)
     message(STATUS "Fallback to downloading Abseil ${abseil-cpp-version} from GitHub")
 
+    if (ABSL_REPOSITORY)
+      set(ABSL_REPOSITORY ${ABSL_REPOSITORY})
+    elseif (KOS)
+      set(ABSL_REPOSITORY https://github.com/KasperskyLab/abseil-cpp-kos.git)
+    else()
+      set(ABSL_REPOSITORY https://github.com/abseil/abseil-cpp.git)
+    endif()
+
     include(FetchContent)
     FetchContent_Declare(
       absl
-      GIT_REPOSITORY "https://github.com/abseil/abseil-cpp.git"
+      GIT_REPOSITORY "${ABSL_REPOSITORY}"
       GIT_TAG "${abseil-cpp-version}"
     )
     if (protobuf_INSTALL)
diff --git a/cmake/dependencies.cmake b/cmake/dependencies.cmake
index 6681c7a3..9352ceca 100644
--- a/cmake/dependencies.cmake
+++ b/cmake/dependencies.cmake
@@ -12,7 +12,13 @@ endif()
 
 set(rules_apple-version "3.13.0")
 set(apple_support-version "1.15.1")
-set(abseil-cpp-version "20250127.0")
+if (ABSL_CPP_VERSION)
+  set(abseil-cpp-version "${ABSL_CPP_VERSION}")
+elseif (KOS)
+  set(abseil-cpp-version "kosce_v1.4.0")
+else()
+  set(abseil-cpp-version "20250127.0")
+endif()
 set(rules_cc-version "0.0.17")
 set(zlib-version "1.3.1.bcr.5")
 set(bazel_features-version "1.23.0")
diff --git a/src/google/protobuf/compiler/subprocess.cc b/src/google/protobuf/compiler/subprocess.cc
index e505ddb6..4fd8580d 100644
--- a/src/google/protobuf/compiler/subprocess.cc
+++ b/src/google/protobuf/compiler/subprocess.cc
@@ -32,6 +32,32 @@ namespace google {
 namespace protobuf {
 namespace compiler {
 
+namespace {
+
+#ifdef __KOS__
+/* fork(), execv(), execvp() are not implemented in KasperskyOS
+ * so we need to define them to compile code that use them
+ */
+pid_t fork()
+{
+  std::cerr << "WARNING: fork() is not supported in KasperskyOS\n";
+  return -1;
+}
+
+int execv(const char *, char *const*)
+{
+  std::cerr << "WARNING: execv() is not supported in KasperskyOS\n";
+  return -1;
+}
+
+int execvp(const char *, char *const* )
+{
+  std::cerr << "WARNING: execvp() is not supported in KasperskyOS\n";
+  return -1;
+}
+#endif
+}  // namespace
+
 #ifdef _WIN32
 
 static void CloseHandleOrDie(HANDLE handle) {