diff --git a/README b/README index b82c5b53..51a9376d 100644 --- a/README +++ b/README @@ -288,7 +288,7 @@ Google Test is compact, so most users can build and link it as a static library for the simplicity. You can choose to use Google Test as a shared library (known as a DLL on Windows) if you prefer. -To compile gtest as a shared library, add +To compile *gtest* as a shared library, add -DGTEST_CREATE_SHARED_LIBRARY=1 @@ -296,12 +296,20 @@ to the compiler flags. You'll also need to tell the linker to produce a shared library instead - consult your linker's manual for how to do it. -To compile your tests that use the gtest shared library, add +To compile your *tests* that use the gtest shared library, add -DGTEST_LINKED_AS_SHARED_LIBRARY=1 to the compiler flags. +Note: while the above steps aren't technically necessary today when +using some compilers (e.g. GCC), they may become necessary in the +future, if we decide to improve the speed of loading the library (see +http://gcc.gnu.org/wiki/Visibility for details). Therefore you are +recommended to always add the above flags when using Google Test as a +shared library. Otherwise a future release of Google Test may break +your build script. + ### Avoiding Macro Name Clashes ### In C++, macros don't obey namespaces. Therefore two libraries that