[PATCH] D92336: repair cygwin build

[Jameson Nash via Phabricator via llvm-commits]

vtjnash created this revision.
Herald added subscribers: llvm-commits, mgorny.
Herald added a project: LLVM.
vtjnash requested review of this revision.

This is needed for cross-compiling LLVM from Cygwin, but it had gotten
deleted in
https://reviews.llvm.org/rG2724d9e12960cc1d93eeabbfc9aa1bffffa041cc


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D92336

Files:
  llvm/CMakeLists.txt


Index: llvm/CMakeLists.txt
===================================================================
--- llvm/CMakeLists.txt
+++ llvm/CMakeLists.txt
@@ -52,7 +52,13 @@
 
 set(CMAKE_CXX_STANDARD 14 CACHE STRING "C++ standard to conform to")
 set(CMAKE_CXX_STANDARD_REQUIRED YES)
-set(CMAKE_CXX_EXTENSIONS NO)
+if (CYGWIN)
+  # Cygwin is a bit stricter and lack things like 'strdup', 'stricmp', etc in
+  # c++xx mode.
+  set(CMAKE_CXX_EXTENSIONS YES)
+else()
+  set(CMAKE_CXX_EXTENSIONS NO)
+endif()
 
 if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
   message(STATUS "No build type selected, default to Debug")


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