[binutils-gdb] Revert "gdb/compile: Use std::filesystem::remove_all in cleanup"

[binutils-gdb] Revert "gdb/compile: Use std::filesystem::remove_all in cleanup"

[Lancelot SIX]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f89ae595dd1f5195dd6e8e57bc2217463c436888

commit f89ae595dd1f5195dd6e8e57bc2217463c436888
Author: Lancelot SIX <lancelot.six@amd.com>
Date:   Wed Apr 3 15:39:10 2024 +0100

    Revert "gdb/compile: Use std::filesystem::remove_all in cleanup"
    
    This reverts commit 7bba0ad08576309763e3f41193eaa93025e10b8b.
    
    Tom de Vries reported that 7bba0ad0857 (gdb/compile: Use
    std::filesystem::remove_all in cleanup) broke builds with gcc-7.5.0
    which mostly supports c++17, but not std::filesystem[1].  As this change
    is not critical, revert it to maintain compatibility.
    
    [1] https://inbox.sourceware.org/gdb-patches/a06e6483-aa2e-4b8a-854f-e369a1e961ea@suse.de/
    
    Change-Id: I58150bd27600c95052bdf1bbbd6b44718a5a0bbf
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31420
    Approved-By: Tom Tromey <tom@tromey.com>

Diff:
---
 gdb/compile/compile.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/gdb/compile/compile.c b/gdb/compile/compile.c
index bff69a5092d..2d97a1b2005 100644
--- a/gdb/compile/compile.c
+++ b/gdb/compile/compile.c
@@ -39,9 +39,7 @@
 #include "osabi.h"
 #include "gdbsupport/gdb_wait.h"
 #include "valprint.h"
-#include <filesystem>
 #include <optional>
-#include <system_error>
 #include "gdbsupport/gdb_unlinker.h"
 #include "gdbsupport/pathstuff.h"
 #include "gdbsupport/scoped_ignore_signal.h"
@@ -451,11 +449,15 @@ get_compile_file_tempdir (void)
   tempdir_name = xstrdup (tempdir_name);
   add_final_cleanup ([] ()
     {
-      std::error_code error;
-      if (std::filesystem::remove_all (tempdir_name, error)
-	  == static_cast<std::uintmax_t> (-1))
-	warning (_("Could not remove temporary directory %s (%s)"),
-		 tempdir_name, error.message ().c_str ());
+      char *zap;
+      int wstat;
+
+      gdb_assert (startswith (tempdir_name, TMP_PREFIX));
+      zap = concat ("rm -rf ", tempdir_name, (char *) NULL);
+      wstat = system (zap);
+      if (wstat == -1 || !WIFEXITED (wstat) || WEXITSTATUS (wstat) != 0)
+	warning (_("Could not remove temporary directory %s"), tempdir_name);
+      XDELETEVEC (zap);
     });
   return tempdir_name;
 }