Configure now probes for _LIB_VERSION support in math.h/libm

LIBM_LIB_VERSION is defined if it does

p4raw-id: //depot/perl@24217

4 files changed, 126 insertions, 81 deletions

diff --git a/Configure b/Configure
index b76f5d0731..a7ba8380e4 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 Fri Apr  8 16:30:10 CEST 2005 [metaconfig 3.0 PL70]
+# Generated on Sun Apr 10 19:26:39 CEST 2005 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by perlbug@perl.org)
 
 cat >c1$$ <<EOF
@@ -525,6 +525,7 @@ d_isnanl=''
 d_killpg=''
 d_lchown=''
 d_ldbl_dig=''
+d_libm_lib_version=''
 d_link=''
 d_localtime_r=''
 localtime_r_proto=''
@@ -663,6 +664,7 @@ d_shmget=''
 d_sigaction=''
 d_sigprocmask=''
 d_sigsetjmp=''
+d_sitecustomize=''
 usesitecustomize=''
 d_sockatmark=''
 d_sockatmarkproto=''
@@ -13948,6 +13950,38 @@ $rm -f ldbl_dig.?
 set d_ldbl_dig
 eval $setvar
 
+: see if this is a math.h system
+set math.h i_math
+eval $inhdr
+
+d_libm_lib_version="$undef"
+case $i_math in
+    $define)
+	: check to see if math.h defines _LIB_VERSION
+	echo " "
+	echo "Checking to see if your libm supports _LIB_VERSION..." >&4
+	$cat >try.c <<EOCP
+#include <unistd.h>
+#include <math.h>
+int main (int argc, char *argv[])
+{
+    printf ("%d\n", _LIB_VERSION);
+    return (0);
+    } /* main */
+EOCP
+	set try
+	if eval $compile; then
+	    foo=`$run ./try`
+	    echo "Yes, it does ($foo)" >&4
+	    d_libm_lib_version="$define"
+	else
+	    echo "No, it does not (probably harmless)\n" >&4
+	    fi
+	$rm -f try.* try core core.try.*
+	;;
+
+    esac
+
 : see if link exists
 set link d_link
 eval $inlibc
@@ -14101,10 +14135,6 @@ esac
 
 
 
-: see if this is a math.h system
-set math.h i_math
-eval $inhdr
-
 : see if sqrtl exists
 set sqrtl d_sqrtl
 eval $inlibc
@@ -16136,6 +16166,17 @@ set d_sigsetjmp
 eval $setvar
 $rm -f try.c try
 
+
+d_sitecustomize="$undef"
+case "$usesitecustomize" in
+    $define|true|[Yy]*)
+	usesitecustomize="$define"
+	d_sitecustomize="$define"
+	;;
+    *)
+	usesitecustomize="$undef"
+    esac
+
 : see if sockatmark exists
 set sockatmark d_sockatmark
 eval $inlibc
@@ -19488,16 +19529,6 @@ case "$uidsign" in
 	;;
 esac
 
-
-case "$usesitecustomize" in
-    $define|true|[Yy]*)
-	usesitecustomize="$define"
-	;;
-    *)
-	usesitecustomize="$undef"
-	;;
-    esac
-
 : determine compiler compiler
 case "$yacc" in
 '')
@@ -20743,6 +20774,7 @@ d_isnanl='$d_isnanl'
 d_killpg='$d_killpg'
 d_lchown='$d_lchown'
 d_ldbl_dig='$d_ldbl_dig'
+d_libm_lib_version='$d_libm_lib_version'
 d_link='$d_link'
 d_localtime_r='$d_localtime_r'
 d_locconv='$d_locconv'
@@ -20882,6 +20914,7 @@ d_shmget='$d_shmget'
 d_sigaction='$d_sigaction'
 d_sigprocmask='$d_sigprocmask'
 d_sigsetjmp='$d_sigsetjmp'
+d_sitecustomize='$d_sitecustomize'
 d_sockatmark='$d_sockatmark'
 d_sockatmarkproto='$d_sockatmarkproto'
 d_socket='$d_socket'
diff --git a/Porting/config_H b/Porting/config_H
index ddc4b40c3f..d2cf0a1ef7 100644
--- a/Porting/config_H
+++ b/Porting/config_H
@@ -704,6 +704,12 @@
  */
 #define I_MATH		/**/
 
+/* LIBM_LIB_VERSION:
+ *    This symbol, if defined, indicates that libm exports _LIB_VERSION
+ *    and that math.h defines the enum to manipulate it.
+ */
+#undef LIBM_LIB_VERSION         /**/
+
 /* I_MEMORY:
  *	This symbol, if defined, indicates to the C program that it should
  *	include <memory.h>.
diff --git a/config_h.SH b/config_h.SH
index fde606b370..1953713728 100644
--- a/config_h.SH
+++ b/config_h.SH
@@ -893,47 +893,6 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$i_vfork I_VFORK	/**/
 
-/* INTSIZE:
- *	This symbol contains the value of sizeof(int) so that the C
- *	preprocessor can make decisions based on it.
- */
-/* LONGSIZE:
- *	This symbol contains the value of sizeof(long) so that the C
- *	preprocessor can make decisions based on it.
- */
-/* SHORTSIZE:
- *	This symbol contains the value of sizeof(short) so that the C
- *	preprocessor can make decisions based on it.
- */
-#define INTSIZE $intsize		/**/
-#define LONGSIZE $longsize		/**/
-#define SHORTSIZE $shortsize		/**/
-
-/* MULTIARCH:
- *	This symbol, if defined, signifies that the build
- *	process will produce some binary files that are going to be
- *	used in a cross-platform environment.  This is the case for
- *	example with the NeXT "fat" binaries that contain executables
- *	for several CPUs.
- */
-#$multiarch MULTIARCH		/**/
-
-/* HAS_QUAD:
- *	This symbol, if defined, tells that there's a 64-bit integer type,
- *	Quad_t, and its unsigned counterpar, Uquad_t. QUADKIND will be one
- *	of QUAD_IS_INT, QUAD_IS_LONG, QUAD_IS_LONG_LONG, or QUAD_IS_INT64_T.
- */
-#$d_quad HAS_QUAD	/**/
-#ifdef HAS_QUAD
-#   define Quad_t $quadtype	/**/
-#   define Uquad_t $uquadtype	/**/
-#   define QUADKIND $quadkind	/**/
-#   define QUAD_IS_INT	1
-#   define QUAD_IS_LONG	2
-#   define QUAD_IS_LONG_LONG	3
-#   define QUAD_IS_INT64_T	4
-#endif
-
 /* HAS_ACCESSX:
  *	This symbol, if defined, indicates that the accessx routine is
  *	available to do extended access checks.
@@ -982,12 +941,6 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
 #define MEM_ALIGNBYTES $alignbytes
 #endif
 
-/* PERL_RELOCATABLE_INC:
- *	This symbol, if defined, indicates that we'd like to relocate entries
- *	in @INC at run time based on the location of the perl binary.
- */
-#$userelocatableinc PERL_RELOCATABLE_INC		/**/
-
 /* ARCHLIB:
  *	This variable, if defined, holds the name of the directory in
  *	which the user wants to put architecture-dependent public
@@ -1904,6 +1857,12 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_ldbl_dig HAS_LDBL_DIG 	/* */
 
+/* LIBM_LIB_VERSION:
+ *	This symbol, if defined, indicates that libm exports _LIB_VERSION
+ *	and that math.h defines the enum to manipulate it.
+ */
+#$d_libm_lib_version LIBM_LIB_VERSION		/**/
+
 /* HAS_LOCALTIME_R:
  *	This symbol, if defined, indicates that the localtime_r routine
  *	is available to localtime re-entrantly.
@@ -2525,18 +2484,6 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
 #$d_strerror_r HAS_STRERROR_R	   /**/
 #define STRERROR_R_PROTO $strerror_r_proto	   /**/
 
-/* HAS_STRLCAT:
- *	This symbol, if defined, indicates that the strlcat () routine is
- *	available to do string concatenation.
- */
-#$d_strlcat HAS_STRLCAT		/**/
-
-/* HAS_STRLCPY:
- *	This symbol, if defined, indicates that the strlcpy () routine is
- *	available to do string copying.
- */
-#$d_strlcpy HAS_STRLCPY		/**/
-
 /* HAS_STRTOLD:
  *	This symbol, if defined, indicates that the strtold routine is
  *	available to convert strings to long doubles.
@@ -3028,6 +2975,22 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$installusrbinperl INSTALL_USR_BIN_PERL	/**/
 
+/* INTSIZE:
+ *	This symbol contains the value of sizeof(int) so that the C
+ *	preprocessor can make decisions based on it.
+ */
+/* LONGSIZE:
+ *	This symbol contains the value of sizeof(long) so that the C
+ *	preprocessor can make decisions based on it.
+ */
+/* SHORTSIZE:
+ *	This symbol contains the value of sizeof(short) so that the C
+ *	preprocessor can make decisions based on it.
+ */
+#define INTSIZE $intsize		/**/
+#define LONGSIZE $longsize		/**/
+#define SHORTSIZE $shortsize		/**/
+
 /* PERL_PRIfldbl:
  *	This symbol, if defined, contains the string used by stdio to
  *	format long doubles (format 'f') for output.
@@ -3092,6 +3055,15 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #define Mode_t $modetype	 /* file mode parameter for system calls */
 
+/* MULTIARCH:
+ *	This symbol, if defined, signifies that the build
+ *	process will produce some binary files that are going to be
+ *	used in a cross-platform environment.  This is the case for
+ *	example with the NeXT "fat" binaries that contain executables
+ *	for several CPUs.
+ */
+#$multiarch MULTIARCH		/**/
+
 /* VAL_O_NONBLOCK:
  *	This symbol is to be used during open() or fcntl(F_SETFL) to turn on
  *	non-blocking I/O for the file descriptor. Note that there is no way
@@ -3346,6 +3318,22 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #define PTRSIZE $ptrsize		/**/
 
+/* HAS_QUAD:
+ *	This symbol, if defined, tells that there's a 64-bit integer type,
+ *	Quad_t, and its unsigned counterpar, Uquad_t. QUADKIND will be one
+ *	of QUAD_IS_INT, QUAD_IS_LONG, QUAD_IS_LONG_LONG, or QUAD_IS_INT64_T.
+ */
+#$d_quad HAS_QUAD	/**/
+#ifdef HAS_QUAD
+#   define Quad_t $quadtype	/**/
+#   define Uquad_t $uquadtype	/**/
+#   define QUADKIND $quadkind	/**/
+#   define QUAD_IS_INT	1
+#   define QUAD_IS_LONG	2
+#   define QUAD_IS_LONG_LONG	3
+#   define QUAD_IS_INT64_T	4
+#endif
+
 /* Drand01:
  *	This macro is to be used to generate uniformly distributed
  *	random numbers over the range [0., 1.[.  You may have to supply
@@ -3470,12 +3458,6 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
 #define SITELIB_EXP "$sitelibexp"		/**/
 #define SITELIB_STEM "$sitelib_stem"		/**/
 
-/* USE_SITECUSTOMIZE:
- *    This symbol, if defined, indicates that sitecustomize should
- *    be used.
- */
-#$usesitecustomize     USE_SITECUSTOMIZE               /**/
-
 /* Size_t_size:
  *	This symbol holds the size of a Size_t in bytes.
  */
@@ -3619,6 +3601,12 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
 #$useperlio	USE_PERLIO		/**/
 #endif
 
+/* PERL_RELOCATABLE_INC:
+ *	This symbol, if defined, indicates that we'd like to relocate entries
+ *	in @INC at run time based on the location of the perl binary.
+ */
+#define PERL_RELOCATABLE_INC "$userelocatableinc" 		/**/
+
 /* USE_SOCKS:
  *	This symbol, if defined, indicates that Perl should
  *	be built to use socks.
@@ -3920,6 +3908,12 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_sigprocmask HAS_SIGPROCMASK		/**/
 
+/* USE_SITECUSTOMIZE:
+ *	This symbol, if defined, indicates that sitecustomize should
+ *	be used.
+ */
+#$d_sitecustomize	USE_SITECUSTOMIZE		/**/
+
 /* HAS_SOCKATMARK:
  *	This symbol, if defined, indicates that the sockatmark routine is
  *	available to test whether a socket is at the out-of-band mark.
@@ -3956,6 +3950,18 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_strftime HAS_STRFTIME		/**/
 
+/* HAS_STRLCAT:
+ *	This symbol, if defined, indicates that the strlcat () routine is
+ *	available to do string concatenation.
+ */
+#$d_strlcat HAS_STRLCAT		/**/
+
+/* HAS_STRLCPY:
+ *	This symbol, if defined, indicates that the strlcpy () routine is
+ *	available to do string copying.
+ */
+#$d_strlcpy HAS_STRLCPY		/**/
+
 /* HAS_SYSCALL_PROTO:
  *	This symbol, if defined, indicates that the system provides
  *	a prototype for the syscall() function.  Otherwise, it is up
diff --git a/handy.h b/handy.h
index 81483a81b7..d1872f2257 100644
--- a/handy.h
+++ b/handy.h
@@ -160,7 +160,7 @@ typedef U64TYPE U64;
 #endif
 
 /* HMB H.Merijn Brand - a placeholder for preparing Configure patches */
-#if defined(USE_SITECUSTOMIZE) || defined(LIBM_VERSION_TYPE)
+#if defined(LIBM_LIB_VERSION)
 /* Not (yet) used at top level, but mention them for metaconfig */
 #endif