Add HAS_SBRK_PROTO.

p4raw-id: //depot/perl@7710

17 files changed, 73 insertions, 4 deletions

diff --git a/Configure b/Configure
index 688d534a83..5ea281a108 100755
--- a/Configure
+++ b/Configure
@@ -20,7 +20,7 @@
 
 # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
 #
-# Generated on Thu Nov 16 03:18:20 EET 2000 [metaconfig 3.0 PL70]
+# Generated on Thu Nov 16 16:33:41 EET 2000 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by perlbug@perl.org)
 
 cat >/tmp/c1$$ <<EOF
@@ -478,6 +478,7 @@ d_rmdir=''
 d_safebcpy=''
 d_safemcpy=''
 d_sanemcmp=''
+d_sbrkproto=''
 d_select=''
 d_sem=''
 d_semctl=''
@@ -10895,6 +10896,11 @@ $rm -f try.* try core
 set d_sanemcmp
 eval $setvar
 
+: see if prototype for sbrk is available
+echo " "
+set d_sbrkproto sbrk $i_unistd unistd.h
+eval $hasproto
+
 : see if select exists
 set select d_select
 eval $inlibc
@@ -15719,6 +15725,7 @@ d_rmdir='$d_rmdir'
 d_safebcpy='$d_safebcpy'
 d_safemcpy='$d_safemcpy'
 d_sanemcmp='$d_sanemcmp'
+d_sbrkproto='$d_sbrkproto'
 d_sched_yield='$d_sched_yield'
 d_scm_rights='$d_scm_rights'
 d_seekdir='$d_seekdir'
diff --git a/Porting/Glossary b/Porting/Glossary
index 6441fd8d7b..2233779fdb 100644
--- a/Porting/Glossary
+++ b/Porting/Glossary
@@ -1251,6 +1251,12 @@ d_sanemcmp (d_sanemcmp.U):
 	the memcpy() routine is available and can be used to compare relative
 	magnitudes of chars with their high bits set.
 
+d_sbrkproto (d_sbrkproto.U):
+	This variable conditionally defines the HAS_SBRK_PROTO symbol,
+	which indicates to the C program that the system provides
+	a prototype for the sbrk() function.  Otherwise, it is
+	up to the program to supply one.
+
 d_sched_yield (d_pthread_y.U):
 	This variable conditionally defines the HAS_SCHED_YIELD
 	symbol if the sched_yield routine is available to yield
diff --git a/Porting/config.sh b/Porting/config.sh
index 654bec78ab..9e0e300455 100644
--- a/Porting/config.sh
+++ b/Porting/config.sh
@@ -8,7 +8,7 @@
 
 # Package name      : perl5
 # Source directory  : /m/fs/work/work/permanent/perl/pp4/perl
-# Configuration time: Thu Nov 16 03:24:59 EET 2000
+# Configuration time: Thu Nov 16 16:43:36 EET 2000
 # Configured by     : jhi
 # Target system     : osf1 alpha.hut.fi v4.0 878 alpha 
 
@@ -62,7 +62,7 @@ ccsymbols='__alpha=1 __LANGUAGE_C__=1 __osf__=1 __unix__=1 _LONGLONG=1 _SYSTYPE_
 ccversion='V5.6-082'
 cf_by='jhi'
 cf_email='yourname@yourhost.yourplace.com'
-cf_time='Thu Nov 16 03:24:59 EET 2000'
+cf_time='Thu Nov 16 16:43:36 EET 2000'
 charsize='1'
 chgrp=''
 chmod=''
@@ -286,6 +286,7 @@ d_rmdir='define'
 d_safebcpy='define'
 d_safemcpy='undef'
 d_sanemcmp='define'
+d_sbrkproto='define'
 d_sched_yield='define'
 d_scm_rights='define'
 d_seekdir='define'
diff --git a/Porting/config_H b/Porting/config_H
index dc2f0f1cd6..59537cba0b 100644
--- a/Porting/config_H
+++ b/Porting/config_H
@@ -17,7 +17,7 @@
 /*
  * Package name      : perl5
  * Source directory  : /m/fs/work/work/permanent/perl/pp4/perl
- * Configuration time: Thu Nov 16 03:24:59 EET 2000
+ * Configuration time: Thu Nov 16 16:43:36 EET 2000
  * Configured by     : jhi
  * Target system     : osf1 alpha.hut.fi v4.0 878 alpha 
  */
@@ -3211,4 +3211,13 @@
  */
 #define HAS_FSYNC		/**/
 
+/* HAS_SBRK_PROTO:
+ *	This symbol, if defined, indicates that the system provides
+ *	a prototype for the sbrk() function.  Otherwise, it is up
+ *	to the program to supply one.  Good guesses are
+ *		extern void* sbrk _((int));
+ *		extern void* sbrk _((size_t));
+ */
+#define	HAS_SBRK_PROTO	/**/
+
 #endif
diff --git a/config_h.SH b/config_h.SH
index e7c668ea44..f912151186 100644
--- a/config_h.SH
+++ b/config_h.SH
@@ -3231,5 +3231,14 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_fsync HAS_FSYNC		/**/
 
+/* HAS_SBRK_PROTO:
+ *	This symbol, if defined, indicates that the system provides
+ *	a prototype for the sbrk() function.  Otherwise, it is up
+ *	to the program to supply one.  Good guesses are
+ *		extern void* sbrk _((int));
+ *		extern void* sbrk _((size_t));
+ */
+#$d_sbrkproto	HAS_SBRK_PROTO	/**/
+
 #endif
 !GROK!THIS!
diff --git a/configure.com b/configure.com
index 6514b71ec0..d40c25094f 100644
--- a/configure.com
+++ b/configure.com
@@ -4940,6 +4940,7 @@ $ WC "d_rmdir='define'"
 $ WC "d_safebcpy='undef'"
 $ WC "d_safemcpy='define'"
 $ WC "d_sanemcmp='define'"
+$ WC "d_sbrkproto='undef'"
 $ WC "d_sched_yield='" + d_sched_yield + "'"
 $ WC "d_scm_rights='undef'"
 $ WC "d_seekdir='define'"
diff --git a/epoc/config.sh b/epoc/config.sh
index 1767946a91..9595c0cd92 100644
--- a/epoc/config.sh
+++ b/epoc/config.sh
@@ -275,6 +275,7 @@ d_rmdir='define'
 d_safebcpy='undef'
 d_safemcpy='undef'
 d_sanemcmp='define'
+d_sbrkproto='undef'
 d_sched_yield='undef'
 d_scm_rights='undef'
 d_seekdir='define'
diff --git a/malloc.c b/malloc.c
index 5d9652e869..42c2d651c6 100644
--- a/malloc.c
+++ b/malloc.c
@@ -894,9 +894,11 @@ Malloc_t Perl_sbrk (int size);
 #include <unistd.h>
 #endif
 #else
+#ifndef HAS_SBRK_PROTO
 extern	Malloc_t sbrk(int);
 #endif
 #endif
+#endif
 
 #ifdef DEBUGGING_MSTATS
 /*
diff --git a/uconfig.h b/uconfig.h
index 218dc55546..a00eed1972 100644
--- a/uconfig.h
+++ b/uconfig.h
@@ -3207,4 +3207,13 @@
  */
 # HAS_FSYNC		/**/
 
+/* HAS_SBRK_PROTO:
+ *	This symbol, if defined, indicates that the system provides
+ *	a prototype for the sbrk() function.  Otherwise, it is up
+ *	to the program to supply one.  Good guesses are
+ *		extern void* sbrk _((int));
+ *		extern void* sbrk _((size_t));
+ */
+/*#define	HAS_SBRK_PROTO	/ **/
+
 #endif
diff --git a/uconfig.sh b/uconfig.sh
index fe1f935bff..ca27412ab5 100755
--- a/uconfig.sh
+++ b/uconfig.sh
@@ -204,6 +204,7 @@ d_rmdir='undef'
 d_safebcpy='undef'
 d_safemcpy='undef'
 d_sanemcmp='undef'
+d_sbrkproto='undef'
 d_sched_yield='undef'
 d_scm_rights='undef'
 d_seekdir='undef'
diff --git a/vos/config.alpha.def b/vos/config.alpha.def
index 8212ce18bc..5a88cb811b 100644
--- a/vos/config.alpha.def
+++ b/vos/config.alpha.def
@@ -193,6 +193,7 @@ $d_rmdir='define'
 $d_safebcpy='undef'
 $d_safemcpy='undef'
 $d_sanemcmp='define'
+$d_sbrkproto='undef'
 $d_sched_yield='undef'
 $d_scm_rights='undef'
 $d_SCNfldbl='define'
diff --git a/vos/config.alpha.h b/vos/config.alpha.h
index 5736d9274c..f4d8392938 100644
--- a/vos/config.alpha.h
+++ b/vos/config.alpha.h
@@ -1825,6 +1825,15 @@
  */
 #define HAS_SANE_MEMCMP	/**/
 
+/* HAS_SBRK_PROTO:
+ *	This symbol, if defined, indicates that the system provides
+ *	a prototype for the sbrk() function.  Otherwise, it is up
+ *	to the program to supply one.  Good guesses are
+ *		extern void* sbrk _((int));
+ *		extern void* sbrk _((size_t));
+ */
+/*#define	HAS_SBRK_PROTO	/ **/
+
 /* HAS_SEM:
  *	This symbol, if defined, indicates that the entire sem*(2) library is
  *	supported.
diff --git a/vos/config.ga.def b/vos/config.ga.def
index 88cd75513b..c041b5c686 100644
--- a/vos/config.ga.def
+++ b/vos/config.ga.def
@@ -193,6 +193,7 @@ $d_rmdir='define'
 $d_safebcpy='undef'
 $d_safemcpy='undef'
 $d_sanemcmp='define'
+$d_sbrkproto='undef'
 $d_sched_yield='undef'
 $d_scm_rights='undef'
 $d_SCNfldbl='define'
diff --git a/vos/config.ga.h b/vos/config.ga.h
index 8a259a3205..2fdc4a806d 100644
--- a/vos/config.ga.h
+++ b/vos/config.ga.h
@@ -1825,6 +1825,15 @@
  */
 #define HAS_SANE_MEMCMP	/**/
 
+/* HAS_SBRK_PROTO:
+ *	This symbol, if defined, indicates that the system provides
+ *	a prototype for the sbrk() function.  Otherwise, it is up
+ *	to the program to supply one.  Good guesses are
+ *		extern void* sbrk _((int));
+ *		extern void* sbrk _((size_t));
+ */
+/*#define	HAS_SBRK_PROTO	/ **/
+
 /* HAS_SEM:
  *	This symbol, if defined, indicates that the entire sem*(2) library is
  *	supported.
diff --git a/win32/config.bc b/win32/config.bc
index 6d8f7cdd7f..04d5f45909 100644
--- a/win32/config.bc
+++ b/win32/config.bc
@@ -270,6 +270,7 @@ d_rmdir='define'
 d_safebcpy='undef'
 d_safemcpy='undef'
 d_sanemcmp='define'
+d_sbrkproto='undef'
 d_sched_yield='undef'
 d_scm_rights='undef'
 d_seekdir='define'
diff --git a/win32/config.gc b/win32/config.gc
index 320e87e7c4..a6b0bcf052 100644
--- a/win32/config.gc
+++ b/win32/config.gc
@@ -270,6 +270,7 @@ d_rmdir='define'
 d_safebcpy='undef'
 d_safemcpy='undef'
 d_sanemcmp='define'
+d_sbrkproto='undef'
 d_sched_yield='undef'
 d_scm_rights='undef'
 d_seekdir='define'
diff --git a/win32/config.vc b/win32/config.vc
index c29b799f5b..489cdd0683 100644
--- a/win32/config.vc
+++ b/win32/config.vc
@@ -270,6 +270,7 @@ d_rmdir='define'
 d_safebcpy='undef'
 d_safemcpy='undef'
 d_sanemcmp='define'
+d_sbrkproto='undef'
 d_sched_yield='undef'
 d_scm_rights='undef'
 d_seekdir='define'