Fix usage of secure_getenv with glibc 2.17.

See http://sourceware.org/glibc/wiki/Tips_and_Tricks/secure_getenv

2012-10-06  Janne Blomqvist  <jb@gcc.gnu.org>

	* configure.ac: Check for presence of secure_getenv.
	* libgfortran.h: Use HAVE_SECURE_GETENV.
	* Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* config.h.in: Regenerated.
	* configure: Regenerated.

From-SVN: r192169

1 files changed, 15 insertions, 8 deletions

diff --git a/libgfortran/configure b/libgfortran/configure
index 5ee6f23..5ad56aa 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -653,6 +653,7 @@ CPP
 am__fastdepCC_FALSE
 am__fastdepCC_TRUE
 CCDEPMODE
+am__nodep
 AMDEPBACKSLASH
 AMDEP_FALSE
 AMDEP_TRUE
@@ -2592,6 +2593,7 @@ as_fn_append ac_func_list " getuid"
 as_fn_append ac_func_list " geteuid"
 as_fn_append ac_func_list " umask"
 as_fn_append ac_func_list " getegid"
+as_fn_append ac_func_list " secure_getenv"
 as_fn_append ac_func_list " __secure_getenv"
 as_fn_append ac_header_list " math.h"
 # Check that the precious variables saved in the cache have kept the same
@@ -3383,11 +3385,11 @@ MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 
 # We need awk for the "check" target.  The system "awk" is bad on
 # some platforms.
-# Always define AMTAR for backward compatibility.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
 
-AMTAR=${AMTAR-"${am_missing_run}tar"}
-
-am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
 
 
 
@@ -3520,6 +3522,7 @@ fi
 if test "x$enable_dependency_tracking" != xno; then
   am_depcomp="$ac_aux_dir/depcomp"
   AMDEPBACKSLASH='\'
+  am__nodep='_no'
 fi
  if test "x$enable_dependency_tracking" != xno; then
   AMDEP_TRUE=
@@ -4337,6 +4340,7 @@ else
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named `D' -- because `-MD' means `put the output
   # in D'.
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -4396,7 +4400,7 @@ else
 	break
       fi
       ;;
-    msvisualcpp | msvcmsys)
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok `-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
@@ -5512,6 +5516,7 @@ else
   # instance it was reported that on HP-UX the gcc test will end up
   # making a dummy file named `D' -- because `-MD' means `put the output
   # in D'.
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -5571,7 +5576,7 @@ else
 	break
       fi
       ;;
-    msvisualcpp | msvcmsys)
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
       # This compiler won't grok `-c -o', but also, the minuso test has
       # not run yet.  These depmodes are late enough in the game, and
       # so weak that their functioning should not be impacted.
@@ -12328,7 +12333,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12331 "configure"
+#line 12336 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12434,7 +12439,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12437 "configure"
+#line 12442 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -16548,6 +16553,8 @@ done
 
 
 
+
+
 # Check strerror_r, cannot be above as versions with two and three arguments exist
 
     ac_save_CFLAGS="$CFLAGS"