Configure scan for ldexpl

15 files changed, 48 insertions, 2 deletions

diff --git a/Configure b/Configure
index b76458790e..817b515d6d 100755
--- a/Configure
+++ b/Configure
@@ -585,6 +585,7 @@ d_isnanl=''
 d_killpg=''
 d_lchown=''
 d_ldbl_dig=''
+d_ldexpl=''
 d_libm_lib_version=''
 d_link=''
 d_localtime_r=''
@@ -15427,6 +15428,10 @@ $rm -f ldbl_dig.?
 set d_ldbl_dig
 eval $setvar
 
+: see if ldexpl exists
+set ldexpl d_ldexpl
+eval $inlibc
+
 : see if this is a math.h system
 set math.h i_math
 eval $inhdr
@@ -15793,6 +15798,9 @@ if $test "$uselongdouble" = "$define"; then
 	    message="$message frexpl"
 	fi
     fi
+    if $test "$d_ldexpl" != "$define"; then
+	message="$message ldexpl"
+    fi
 
     if $test "$message" != ""; then
 	$cat <<EOM >&4
@@ -23308,6 +23316,7 @@ d_isnanl='$d_isnanl'
 d_killpg='$d_killpg'
 d_lchown='$d_lchown'
 d_ldbl_dig='$d_ldbl_dig'
+d_ldexpl='$d_ldexpl'
 d_libm_lib_version='$d_libm_lib_version'
 d_libname_unique='$d_libname_unique'
 d_link='$d_link'
diff --git a/Cross/config.sh-arm-linux b/Cross/config.sh-arm-linux
index e0ba68b2a8..abccb2c7a2 100644
--- a/Cross/config.sh-arm-linux
+++ b/Cross/config.sh-arm-linux
@@ -300,6 +300,7 @@ d_isnanl='define'
 d_killpg='define'
 d_lchown='define'
 d_ldbl_dig='define'
+d_ldexpl='define'
 d_libm_lib_version='define'
 d_link='define'
 d_localtime64='undef'
diff --git a/NetWare/config.wc b/NetWare/config.wc
index 54b4c9d453..fde25b164c 100644
--- a/NetWare/config.wc
+++ b/NetWare/config.wc
@@ -289,6 +289,7 @@ d_isnanl='undef'
 d_killpg='undef'
 d_lchown='undef'
 d_ldbl_dig='define'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='define'
 d_localtime64='undef'
diff --git a/Porting/Glossary b/Porting/Glossary
index 99cef06a97..eb50a61e77 100644
--- a/Porting/Glossary
+++ b/Porting/Glossary
@@ -1336,6 +1336,10 @@ d_ldbl_dig (d_ldbl_dig.U):
 	header files provide LDBL_DIG, which is the number of significant
 	digits in a long double precision number.
 
+d_ldexpl (d_ldexpl.U):
+	This variable conditionally defines the HAS_LDEXPL symbol, which
+	indicates to the C program that the ldexpl() routine is available.
+
 d_libm_lib_version (d_libm_lib_version.U):
 	This variable conditionally defines the LIBM_LIB_VERSION symbol,
 	which indicates to the C program that math.h defines _LIB_VERSION
diff --git a/Porting/config.sh b/Porting/config.sh
index 1c30d0862b..6f76268348 100644
--- a/Porting/config.sh
+++ b/Porting/config.sh
@@ -309,6 +309,7 @@ d_isnanl='define'
 d_killpg='define'
 d_lchown='define'
 d_ldbl_dig='define'
+d_ldexpl='define'
 d_libm_lib_version='define'
 d_libname_unique='undef'
 d_link='define'
diff --git a/config_h.SH b/config_h.SH
index ff7308e860..168feee160 100755
--- a/config_h.SH
+++ b/config_h.SH
@@ -3617,6 +3617,13 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
  */
 #$d_frexpl HAS_FREXPL		/**/
 
+/* HAS_LDEXPL:
+ *	This symbol, if defined, indicates that the ldexpl routine is
+ *	available to shift a long double floating-point number
+ *	by an integral power of 2.
+ */
+#$d_ldexpl HAS_LDEXPL		/**/
+
 /* HAS_STRUCT_FS_DATA:
  *	This symbol, if defined, indicates that the struct fs_data
  *	to do statfs() is supported.
diff --git a/configure.com b/configure.com
index a147e5d7ae..ae7615596a 100644
--- a/configure.com
+++ b/configure.com
@@ -3343,6 +3343,7 @@ $   uquadtype = "unsigned long long"
 $   quadkind  = "3"
 $!
 $   d_frexpl = "define"
+$   d_ldexpl = "define"
 $   d_modfl = "define"
 $   d_modflproto = "define"
 $ ELSE
@@ -3364,6 +3365,7 @@ $   uquadtype = "undef"
 $   quadkind  = "undef"
 $!
 $   d_frexpl = "undef"
+$   d_ldexpl = "undef"
 $   d_modfl = "undef"
 $   d_modflproto = "undef"
 $ ENDIF
@@ -6063,6 +6065,7 @@ $ WC "d_isnanl='" + d_isnanl + "'"
 $ WC "d_killpg='undef'"
 $ WC "d_lchown='" + d_lchown + "'"
 $ WC "d_ldbl_dig='define'"
+$ WC "d_ldexpl='" + d_ldexpl + "'"
 $ WC "d_libm_lib_version='undef'"
 $ WC "d_link='" + d_link + "'"
 $ WC "d_llseek='undef'"
diff --git a/plan9/config_sh.sample b/plan9/config_sh.sample
index c8ae07a32e..bbe15afc7b 100644
--- a/plan9/config_sh.sample
+++ b/plan9/config_sh.sample
@@ -300,6 +300,7 @@ d_isnanl='undef'
 d_killpg='undef'
 d_lchown='undef'
 d_ldbl_dig='define'
+d_ldexpl='undef'
 d_libm_lib_version='0'
 d_link='define'
 d_localtime64='undef'
diff --git a/symbian/config.sh b/symbian/config.sh
index fa1249324b..27f5a5b54d 100644
--- a/symbian/config.sh
+++ b/symbian/config.sh
@@ -246,6 +246,7 @@ d_isnanl='undef'
 d_killpg='undef'
 d_lchown='undef'
 d_ldbl_dig='undef'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='undef'
 d_localtime64='undef'
diff --git a/uconfig.h b/uconfig.h
index ba38e02576..a1aa34f72e 100644
--- a/uconfig.h
+++ b/uconfig.h
@@ -1906,6 +1906,9 @@
  *	LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN
  *	LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN
  *	LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN
+ *	LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN
+ *	LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN
+ *	LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN
  *	LONG_DOUBLE_IS_UNKNOWN_FORMAT
  *	It is only defined if the system supports long doubles.
  */
@@ -1917,6 +1920,9 @@
 #define LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN	1
 #define LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN	2
 #define LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN		3
+#define LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN		4
+#define LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LITTLE_ENDIAN	5
+#define LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BIG_ENDIAN	6
 #define LONG_DOUBLE_IS_UNKNOWN_FORMAT			-1
 #endif
 
@@ -3576,6 +3582,13 @@
  */
 /*#define HAS_FREXPL		/ **/
 
+/* HAS_LDEXPL:
+ *	This symbol, if defined, indicates that the ldexpl routine is
+ *	available to shift a long double floating-point number
+ *	by an integral power of 2.
+ */
+/*#define HAS_LDEXPL		/ **/
+
 /* HAS_STRUCT_FS_DATA:
  *	This symbol, if defined, indicates that the struct fs_data
  *	to do statfs() is supported.
@@ -4757,6 +4770,6 @@
 #endif
 
 /* Generated from:
- * c4bf570c111b3c66095fb11639d17a0af192b7c0a37356b5aee77aba07159a26 config_h.SH
- * bcda3e57ce7783c031fe7cc8670ceac0dd6344d01f9a36ede1b34c48cb7d4f21 uconfig.sh
+ * 5f68e17a9d9e989b824daf55d2adcad3b7af2becfa8f627c6cb1d0e376f7e1a5 config_h.SH
+ * 98397a7d818a024628d6b34e5903a8f408da96601a2a19471c480511f3c8d914 uconfig.sh
  * ex: set ro: */
diff --git a/uconfig.sh b/uconfig.sh
index e840f3ea77..15fd327db3 100644
--- a/uconfig.sh
+++ b/uconfig.sh
@@ -239,6 +239,7 @@ d_isnanl='undef'
 d_killpg='undef'
 d_lchown='undef'
 d_ldbl_dig='undef'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='undef'
 d_localtime64='undef'
diff --git a/uconfig64.sh b/uconfig64.sh
index 600962b176..06537c3c5a 100644
--- a/uconfig64.sh
+++ b/uconfig64.sh
@@ -240,6 +240,7 @@ d_isnanl='undef'
 d_killpg='undef'
 d_lchown='undef'
 d_ldbl_dig='undef'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='undef'
 d_localtime64='undef'
diff --git a/win32/config.ce b/win32/config.ce
index aa8f756545..78254ee665 100644
--- a/win32/config.ce
+++ b/win32/config.ce
@@ -287,6 +287,7 @@ d_isnanl='undef'
 d_killpg='undef'
 d_lchown='undef'
 d_ldbl_dig='define'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='define'
 d_localtime64='undef'
diff --git a/win32/config.gc b/win32/config.gc
index 2cf0fb9be0..94e3596b75 100644
--- a/win32/config.gc
+++ b/win32/config.gc
@@ -287,6 +287,7 @@ d_isnanl='undef'
 d_killpg='define'
 d_lchown='undef'
 d_ldbl_dig='define'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='define'
 d_localtime64='undef'
diff --git a/win32/config.vc b/win32/config.vc
index 8ebdb617cf..a4ef3146bf 100644
--- a/win32/config.vc
+++ b/win32/config.vc
@@ -287,6 +287,7 @@ d_isnanl='undef'
 d_killpg='define'
 d_lchown='undef'
 d_ldbl_dig='define'
+d_ldexpl='undef'
 d_libm_lib_version='undef'
 d_link='define'
 d_localtime64='undef'