configure: Diagnose broken linkers directly

Currently if the user's compiler works for creating .o files but their linker is broken such that compiling an executable from a C file does not work, we will report a misleading error message about the compiler not supporting __thread (since that happens to be the first test we run which requires a working linker). Explicitly check that compile_prog works as well as compile_object, so that people whose toolchain setup is broken get a more helpful error message. Signed-off-by: Peter Maydell <[email protected]> Signed-off-by: Michael Tokarev <[email protected]>
yinghaoxie · Dec 4, 2015 · 0ef74c7 · 0ef74c7
1 parent e0df8f1
commit 0ef74c7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/configure b/configure
@@ -1428,6 +1428,9 @@ if compile_object ; then
 else
     error_exit "\"$cc\" either does not exist or does not work"
 fi
+if ! compile_prog ; then
+    error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
+fi
 
 # Check that the C++ compiler exists and works with the C compiler
 if has $cxx; then