Turns out that we may end up calling dladdr on GetExecutablePath, give it external linkage to make sure the lookup works on all platforms.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117813 91177308-0d34-0410-b5e6-96231b3b80d8

examples/clang-interpreter/main.cpp

@@ -32,7 +32,7 @@
 using namespace clang;
 using namespace clang::driver;
 
-static llvm::sys::Path GetExecutablePath(const char *Argv0) {
+llvm::sys::Path GetExecutablePath(const char *Argv0) {
   // This just needs to be some symbol in the binary; C++ doesn't
   // allow taking the address of ::main however.
   void *MainAddr = (void*) (intptr_t) GetExecutablePath;

tools/driver/driver.cpp

@@ -36,8 +36,7 @@
 using namespace clang;
 using namespace clang::driver;
 
-static llvm::sys::Path GetExecutablePath(const char *Argv0,
-                                         bool CanonicalPrefixes) {
+llvm::sys::Path GetExecutablePath(const char *Argv0, bool CanonicalPrefixes) {
   if (!CanonicalPrefixes)
     return llvm::sys::Path(Argv0);