* gdb.threads/pthreads.exp: Move the portable thread compilation

code into a function in lib/gdb.exp, and call that from here.
* lib/gdb.exp (gdb_compile_pthreads): New function.

1 files changed, 36 insertions, 0 deletions

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index b4a0b8a..8949910 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -1171,6 +1171,42 @@ proc gdb_compile {source dest type options} {
     return $result;
 }
 
+
+# This is just like gdb_compile, above, except that it tries compiling
+# against several different thread libraries, to see which one this
+# system has.
+proc gdb_compile_pthreads {source dest type options} {
+    set build_binfile 0
+    set why_msg "unrecognized error"
+    foreach lib {-lpthreads -lpthread -lthread} {
+        # This kind of wipes out whatever libs the caller may have
+        # set.  Or maybe theirs will override ours.  How infelicitous.
+        set options_with_lib [concat $options [list libs=$lib]]
+        set ccout [gdb_compile $source $dest $type $options_with_lib]
+        switch -regexp -- $ccout {
+            ".*no posix threads support.*" {
+                set why_msg "missing threads include file"
+                break
+            }
+            ".*cannot open -lpthread.*" {
+                set why_msg "missing runtime threads library"
+            }
+            ".*Can't find library for -lpthread.*" {
+                set why_msg "missing runtime threads library"
+            }
+            {^$} {
+                pass "successfully compiled posix threads test case"
+                set built_binfile 1
+                break
+            }
+        }
+    }
+    if {$built_binfile == "0"} {
+        unsupported "Couldn't compile $source: ${why_msg}"
+        return -1
+    }
+}
+
 proc send_gdb { string } {
     global suppress_flag;
     if { $suppress_flag } {