Only attempt to use precompiled headers that exists

2013-02-23 00:58:18 +01:00
parent a35e0d23e3
commit 8b13ffee6b
1 changed files with 5 additions and 0 deletions
--- a/cmake/Modules/UsePrecompHeaders.cmake
+++ b/cmake/Modules/UsePrecompHeaders.cmake
@@ -97,6 +97,11 @@ function (precompile_header
  else (language STREQUAL "CXX")
 	message (FATAL "Only C or C++ can have precompiled headers")
  endif (language STREQUAL "CXX")
+
+  # if no precompiled header was found, then we shouldn't do anything here
+  if (NOT header)
+	return ()
+  endif (NOT header)
  
  # only support precompiled headers if the compiler is gcc >= 3.4
  get_gcc_version (${language} GCC_VERSION)