Save errno before using sprintf, ifstream.
std::ifstream in libstdc++ contains a bug, where it sets errno to zero.
To work around it, we manually save the errno before using std::ifstream
in debugger check, and reset it after we are done.
We also preventively save errno before using sprintf.
Fixes #835
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 67f4058..159fcce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -135,6 +135,7 @@
${HEADER_DIR}/internal/catch_debugger.h
${HEADER_DIR}/internal/catch_debugger.hpp
${HEADER_DIR}/internal/catch_default_main.hpp
+ ${HEADER_DIR}/internal/catch_errno_guard.hpp
${HEADER_DIR}/internal/catch_evaluate.hpp
${HEADER_DIR}/internal/catch_exception_translator_registry.hpp
${HEADER_DIR}/internal/catch_expression_lhs.hpp