Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/src/fluent-bit/cmake/homebrew.cmake b/src/fluent-bit/cmake/homebrew.cmake
new file mode 100644
index 000000000..e2b32e1a9
--- /dev/null
+++ b/src/fluent-bit/cmake/homebrew.cmake
@@ -0,0 +1,38 @@
+# Search homebrewed keg-only versions of Bison and Flex on macOS.
+execute_process(
+  COMMAND brew --prefix bison
+  RESULT_VARIABLE HOMEBREW_BISON
+  OUTPUT_VARIABLE HOMEBREW_BISON_PREFIX
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+if (HOMEBREW_BISON EQUAL 0 AND EXISTS "${HOMEBREW_BISON_PREFIX}")
+  message(STATUS "Using bison keg installed by Homebrew at ${HOMEBREW_BISON_PREFIX}")
+  set(BISON_EXECUTABLE "${HOMEBREW_BISON_PREFIX}/bin/bison")
+endif()
+
+execute_process(
+  COMMAND brew --prefix flex
+  RESULT_VARIABLE HOMEBREW_FLEX
+  OUTPUT_VARIABLE HOMEBREW_FLEX_PREFIX
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+if (HOMEBREW_FLEX EQUAL 0 AND EXISTS "${HOMEBREW_FLEX_PREFIX}")
+  message(STATUS "Using flex keg installed by Homebrew at ${HOMEBREW_FLEX_PREFIX}")
+  set(FLEX_EXECUTABLE "${HOMEBREW_FLEX_PREFIX}/bin/flex")
+endif()
+
+if (OPENSSL_ROOT_DIR)
+  message(STATUS "Using openssl specified by cmake option: ${OPENSSL_ROOT_DIR}")
+else()
+  # Also, searching homebrewed OpenSSL automatically.
+  execute_process(
+    COMMAND brew --prefix openssl
+    RESULT_VARIABLE HOMEBREW_OPENSSL
+    OUTPUT_VARIABLE HOMEBREW_OPENSSL_PREFIX
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+  if (HOMEBREW_OPENSSL EQUAL 0 AND EXISTS "${HOMEBREW_OPENSSL_PREFIX}")
+    message(STATUS "Using openssl keg installed by Homebrew at ${HOMEBREW_OPENSSL_PREFIX}")
+    set(OPENSSL_ROOT_DIR "${HOMEBREW_OPENSSL_PREFIX}")
+  endif()
+endif()