msys: don't use LTO

This causes duplicate symbol errors on msys' mingw install.
10 years ago · 18c56abe4b
parent 5680c9cac7
commit 18c56abe4b
1 changed files with 2 additions and 0 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -158,6 +158,8 @@ else()
    set(MINGW_FLAG "${MINGW_FLAG} -DWIN32_LEAN_AND_MEAN")
    set(Boost_THREADAPI win32)
    include_directories(SYSTEM src/platform/mingw)
+    # mingw doesn't support LTO (multiple definition errors at link time)
+    set(USE_LTO_DEFAULT false)
  endif()
  set(C_WARNINGS "-Waggregate-return -Wnested-externs -Wold-style-definition -Wstrict-prototypes")
  set(CXX_WARNINGS "-Wno-reorder -Wno-missing-field-initializers")