[PATCH 4/7] Use lstat unconditionally

[Yao Qi <yao@codesourcery.com>]

Since lstat gnulib module is imported, we can use it unconditionally.
lstat usage was introduced by this patch

https://sourceware.org/ml/gdb-patches/2012-01/msg00390.html

during the review, it was suggested to import gnulib lstat module, but
we didn't do that.

gdb:

2014-11-26  Yao Qi  <yao@codesourcery.com>

	* configure.ac (AC_CHECK_FUNCS): Remove lstat.
	* config.in, configure: Regenerate.
	* symfile.c (find_separate_debug_file_by_debuglink): Remove
	code checking HAVE_LSTAT is defined.
---
 gdb/config.in    | 3 ---
 gdb/configure    | 2 +-
 gdb/configure.ac | 2 +-
 gdb/symfile.c    | 2 --
 4 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/gdb/config.in b/gdb/config.in
index 80b988b..8c5a710 100644
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -225,9 +225,6 @@
 /* Define to 1 if the compiler supports long double. */
 #undef HAVE_LONG_DOUBLE
 
-/* Define to 1 if you have the `lstat' function. */
-#undef HAVE_LSTAT
-
 /* Define if <sys/procfs.h> has lwpid_t. */
 #undef HAVE_LWPID_T
 
diff --git a/gdb/configure b/gdb/configure
index e1c0a10..0c04eba 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -10483,7 +10483,7 @@ for ac_func in canonicalize_file_name realpath getrusage getuid getgid \
 		sbrk setpgid setpgrp setsid \
 		sigaction sigprocmask sigsetmask socketpair \
 		ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
-		setrlimit getrlimit posix_madvise waitpid lstat \
+		setrlimit getrlimit posix_madvise waitpid \
 		ptrace64 sigaltstack
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
diff --git a/gdb/configure.ac b/gdb/configure.ac
index bcf1ef2..f8c32ad 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1309,7 +1309,7 @@ AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
 		sbrk setpgid setpgrp setsid \
 		sigaction sigprocmask sigsetmask socketpair \
 		ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
-		setrlimit getrlimit posix_madvise waitpid lstat \
+		setrlimit getrlimit posix_madvise waitpid \
 		ptrace64 sigaltstack])
 AM_LANGINFO_CODESET
 GDB_AC_COMMON
diff --git a/gdb/symfile.c b/gdb/symfile.c
index 29877ec..a09ebe6 100644
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -1591,7 +1591,6 @@ find_separate_debug_file_by_debuglink (struct objfile *objfile)
 
   if (debugfile == NULL)
     {
-#ifdef HAVE_LSTAT
       /* For PR gdb/9538, try again with realpath (if different from the
 	 original).  */
 
@@ -1618,7 +1617,6 @@ find_separate_debug_file_by_debuglink (struct objfile *objfile)
 		}
 	    }
 	}
-#endif  /* HAVE_LSTAT  */
     }
 
   do_cleanups (cleanups);
-- 
1.9.3