Add probe for clearenv (), like #25733 for unsetenv ()

p4raw-id: //depot/perl@25793

diff --git a/Configure b/Configure
index e445bdb..b282a16 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -26,7 +26,7 @@
 
 # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
 #
-# Generated on Mon Oct 10 16:08:59 CEST 2005 [metaconfig 3.0 PL70]
+# Generated on Tue Oct 18 16:11:43 CEST 2005 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by perlbug@perl.org)
 
 cat >c1$$ <<EOF
@@ -362,6 +362,7 @@ d_chown=''
 d_chroot=''
 d_chsize=''
 d_class=''
+d_clearenv=''
 d_closedir=''
 d_void_closedir=''
 d_cmsghdr_s=''
@@ -10504,6 +10505,10 @@ eval $inlibc
 set class d_class
 eval $inlibc
 
+: see if clearenv exists
+set clearenv d_clearenv
+eval $inlibc
+
 hasstruct='varname=$1; struct=$2; shift; shift;
 while $test $# -ge 2; do
        case "$1" in
@@ -20978,6 +20983,7 @@ d_chown='$d_chown'
 d_chroot='$d_chroot'
 d_chsize='$d_chsize'
 d_class='$d_class'
+d_clearenv='$d_clearenv'
 d_closedir='$d_closedir'
 d_cmsghdr_s='$d_cmsghdr_s'
 d_const='$d_const'

diff --git a/Porting/Glossary b/Porting/Glossary
index 95427e2..12c7207 100644 (file)
--- a/Porting/Glossary
+++ b/Porting/Glossary
@@ -498,6 +498,10 @@ d_class (d_class.U):
        This variable conditionally defines the HAS_CLASS symbol, which
        indicates to the C program that the class() routine is available.
 
+d_clearenv (d_clearenv.U):
+       This variable conditionally defines the HAS_CLEARENV symbol, which
+       indicates to the C program that the clearenv () routine is available.
+
 d_closedir (d_closedir.U):
        This variable conditionally defines HAS_CLOSEDIR if closedir() is
        available.

diff --git a/config_h.SH b/config_h.SH
index 5ff37c5..15d8b43 100644 (file)
--- a/config_h.SH
+++ b/config_h.SH
@@ -1948,18 +1948,6 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_madvise HAS_MADVISE                /**/
 
-/* HAS_MALLOC_SIZE:
- *     This symbol, if defined, indicates that the malloc_size
- *     routine is available for use.
- */
-#$d_malloc_size HAS_MALLOC_SIZE                /**/
-
-/* HAS_MALLOC_GOOD_SIZE:
- *     This symbol, if defined, indicates that the malloc_good_size
- *     routine is available for use.
- */
-#$d_malloc_good_size HAS_MALLOC_GOOD_SIZE      /**/
-
 /* HAS_MEMCHR:
  *     This symbol, if defined, indicates that the memchr routine is available
  *     to locate characters within a C string.
@@ -3843,6 +3831,12 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_aintl HAS_AINTL            /**/
 
+/* HAS_CLEARENV:
+ *     This symbol, if defined, indicates that the clearenv () routine is
+ *     available for use.
+ */
+#$d_clearenv HAS_CLEARENV              /**/
+
 /* HAS_COPYSIGNL:
  *     This symbol, if defined, indicates that the copysignl routine is
  *     available.  If aintl is also present we can emulate modfl.
@@ -3907,6 +3901,18 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_libm_lib_version LIBM_LIB_VERSION          /**/
 
+/* HAS_MALLOC_SIZE:
+ *     This symbol, if defined, indicates that the malloc_size
+ *     routine is available for use.
+ */
+#$d_malloc_size HAS_MALLOC_SIZE                /**/
+
+/* HAS_MALLOC_GOOD_SIZE:
+ *     This symbol, if defined, indicates that the malloc_good_size
+ *     routine is available for use.
+ */
+#$d_malloc_good_size HAS_MALLOC_GOOD_SIZE      /**/
+
 /* HAS_NL_LANGINFO:
  *     This symbol, if defined, indicates that the nl_langinfo routine is
  *     available to return local data.  You will also need <langinfo.h>

diff --git a/handy.h b/handy.h
index 69ee8d3..bb4c342 100644 (file)
--- a/handy.h
+++ b/handy.h
@@ -175,7 +175,7 @@ typedef U64TYPE U64;
 #endif
 
 /* HMB H.Merijn Brand - a placeholder for preparing Configure patches */
-#if defined(HAS_MALLOC_SIZE) && defined(HAS_MALLOC_GOOD_SIZE)
+#if defined(HAS_MALLOC_SIZE) && defined(HAS_MALLOC_GOOD_SIZE) && defined(HAS_CLEARENV)
 /* Not (yet) used at top level, but mention them for metaconfig */
 #endif