* linkage.m4 (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0): Define.

	(GLIBCXX_CHECK_STDLIB_SUPPORT): Use it to test for lrand48
	instead of drand48.
	* acconfig.h (HAVE_DRAND48): Renamed to HAVE_LRAND48.
	* crossconfig.m4 (*-freebsd*): Define HAVE_LRAND48 instead of
	HAVE_DRAND48.
	* config.h.in, configure: Regenerate.
	* include/bits/stl_algo.h: Use _GLIBCXX_HAVE_LRAND48 to guard
	lrand48 use.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71990 138bc75d-0d04-0410-961f-82ee72b054a4

7 files changed, 188 insertions, 13 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 4d0f71b420c..4bf9102d8bb 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,15 @@
+2003-10-01  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
+
+	* linkage.m4 (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0): Define.
+	(GLIBCXX_CHECK_STDLIB_SUPPORT): Use it to test for lrand48
+	instead of drand48.
+	* acconfig.h (HAVE_DRAND48): Renamed to HAVE_LRAND48.
+	* crossconfig.m4 (*-freebsd*): Define HAVE_LRAND48 instead of
+	HAVE_DRAND48.
+	* config.h.in, configure: Regenerate.
+	* include/bits/stl_algo.h: Use _GLIBCXX_HAVE_LRAND48 to guard
+	lrand48 use.
+
 2003-10-01  Nathan Myers  <ncm@cantrip.org>
 
 	* include/bits/locale_facets.tcc (time_put::put): Avoid
diff --git a/libstdc++-v3/acconfig.h b/libstdc++-v3/acconfig.h
index 783f6d6db5e..1532bb2d1dc 100644
--- a/libstdc++-v3/acconfig.h
+++ b/libstdc++-v3/acconfig.h
@@ -63,8 +63,8 @@
 // Define if gthr-default.h exists (meaning that threading support is enabled).
 #undef HAVE_GTHR_DEFAULT
 
-// Define if drand48 exists.
-#undef HAVE_DRAND48
+// Define if lrand48 exists.
+#undef HAVE_LRAND48
 
 // Define if getpagesize exists.
 #undef HAVE_GETPAGESIZE
diff --git a/libstdc++-v3/config.h.in b/libstdc++-v3/config.h.in
index 2233e82a8a6..b9a9d146354 100644
--- a/libstdc++-v3/config.h.in
+++ b/libstdc++-v3/config.h.in
@@ -64,8 +64,8 @@
 // Define if gthr-default.h exists (meaning that threading support is enabled).
 #undef HAVE_GTHR_DEFAULT
 
-// Define if drand48 exists.
-#undef HAVE_DRAND48
+// Define if lrand48 exists.
+#undef HAVE_LRAND48
 
 // Define if getpagesize exists.
 #undef HAVE_GETPAGESIZE
@@ -221,8 +221,8 @@
 /* Define to 1 if you have the `cosl' function. */
 #undef HAVE_COSL
 
-/* Define to 1 if you have the `drand48' function. */
-#undef HAVE_DRAND48
+/* Define to 1 if you have the `lrand48' function. */
+#undef HAVE_LRAND48
 
 /* Define to 1 if you have the <endian.h> header file. */
 #undef HAVE_ENDIAN_H
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 4c8a71b6195..4bf083265e9 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -26140,7 +26140,72 @@ done
   fi
 
 
-for ac_func in drand48
+  echo "$as_me:$LINENO: checking for lrand48 declaration" >&5
+echo $ECHO_N "checking for lrand48 declaration... $ECHO_C" >&6
+  if test x${glibcxx_cv_func_lrand48_use+set} != xset; then
+    if test "${glibcxx_cv_func_lrand48_use+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+
+
+      ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ lrand48();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  glibcxx_cv_func_lrand48_use=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+glibcxx_cv_func_lrand48_use=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  echo "$as_me:$LINENO: result: $glibcxx_cv_func_lrand48_use" >&5
+echo "${ECHO_T}$glibcxx_cv_func_lrand48_use" >&6
+  if test x$glibcxx_cv_func_lrand48_use = x"yes"; then
+
+for ac_func in lrand48
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -26228,6 +26293,8 @@ _ACEOF
 fi
 done
 
+  fi
+
 
   CXXFLAGS="$ac_save_CXXFLAGS"
 
@@ -46100,7 +46167,72 @@ done
   fi
 
 
-for ac_func in drand48
+  echo "$as_me:$LINENO: checking for lrand48 declaration" >&5
+echo $ECHO_N "checking for lrand48 declaration... $ECHO_C" >&6
+  if test x${glibcxx_cv_func_lrand48_use+set} != xset; then
+    if test "${glibcxx_cv_func_lrand48_use+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+
+
+      ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+      cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdlib.h>
+int
+main ()
+{
+ lrand48();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  glibcxx_cv_func_lrand48_use=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+glibcxx_cv_func_lrand48_use=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+      ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+fi
+
+  fi
+  echo "$as_me:$LINENO: result: $glibcxx_cv_func_lrand48_use" >&5
+echo "${ECHO_T}$glibcxx_cv_func_lrand48_use" >&6
+  if test x$glibcxx_cv_func_lrand48_use = x"yes"; then
+
+for ac_func in lrand48
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5
@@ -46188,6 +46320,8 @@ _ACEOF
 fi
 done
 
+  fi
+
 
   CXXFLAGS="$ac_save_CXXFLAGS"
 
@@ -48730,7 +48864,7 @@ echo "${ECHO_T}$enable_wchar_t" >&6
 _ACEOF
 
     cat >>confdefs.h <<\_ACEOF
-#define HAVE_DRAND48 1
+#define HAVE_LRAND48 1
 _ACEOF
 
     cat >>confdefs.h <<\_ACEOF
diff --git a/libstdc++-v3/crossconfig.m4 b/libstdc++-v3/crossconfig.m4
index db31b7eca74..2da80389263 100644
--- a/libstdc++-v3/crossconfig.m4
+++ b/libstdc++-v3/crossconfig.m4
@@ -54,7 +54,7 @@ case "${host}" in
     GLIBCXX_CHECK_COMPLEX_MATH_SUPPORT
     GLIBCXX_CHECK_WCHAR_T_SUPPORT
     AC_DEFINE(HAVE_LC_MESSAGES)
-    AC_DEFINE(HAVE_DRAND48)
+    AC_DEFINE(HAVE_LRAND48)
     AC_DEFINE(HAVE_GETPAGESIZE)
     AC_DEFINE(HAVE_SETENV)
     AC_DEFINE(HAVE_SIGSETJMP)
diff --git a/libstdc++-v3/include/bits/stl_algo.h b/libstdc++-v3/include/bits/stl_algo.h
index 83e56469cc6..062550cc98b 100644
--- a/libstdc++-v3/include/bits/stl_algo.h
+++ b/libstdc++-v3/include/bits/stl_algo.h
@@ -1612,7 +1612,7 @@ namespace std
     inline _Distance
     __random_number(_Distance __n)
     {
-  #ifdef _GLIBCXX_HAVE_DRAND48
+  #ifdef _GLIBCXX_HAVE_LRAND48
       return lrand48() % __n;
   #else
       return rand() % __n;
diff --git a/libstdc++-v3/linkage.m4 b/libstdc++-v3/linkage.m4
index fc4e22924b9..9597635359c 100644
--- a/libstdc++-v3/linkage.m4
+++ b/libstdc++-v3/linkage.m4
@@ -173,6 +173,35 @@ dnl 2) has "C" linkage
 dnl
 dnl argument 1 is name of function to check
 dnl
+dnl ASSUMES argument is a stdlib function without parameters
+dnl
+dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0
+AC_DEFUN(GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0, [
+  AC_MSG_CHECKING([for $1 declaration])
+  if test x${glibcxx_cv_func_$1_use+set} != xset; then
+    AC_CACHE_VAL(glibcxx_cv_func_$1_use, [
+      AC_LANG_SAVE
+      AC_LANG_CPLUSPLUS
+      AC_TRY_COMPILE([#include <stdlib.h>],
+                     [ $1();],
+                     [glibcxx_cv_func_$1_use=yes], [glibcxx_cv_func_$1_use=no])
+      AC_LANG_RESTORE
+    ])
+  fi
+  AC_MSG_RESULT($glibcxx_cv_func_$1_use)
+  if test x$glibcxx_cv_func_$1_use = x"yes"; then
+    AC_CHECK_FUNCS($1)
+  fi
+])
+
+
+dnl
+dnl Check to see if the (stdlib function) argument passed is
+dnl 1) declared when using the c++ compiler
+dnl 2) has "C" linkage
+dnl
+dnl argument 1 is name of function to check
+dnl
 dnl ASSUMES argument is a math function with TWO parameters
 dnl
 dnl GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2
@@ -342,7 +371,7 @@ dnl This might seem like overkill but experience has shown that it's not...
 dnl
 dnl Define HAVE_STRTOLD if "strtold" is declared and links
 dnl Define HAVE_STRTOF if "strtof" is declared and links
-dnl Define HAVE_DRAND48 if "drand48" is declared and links
+dnl Define HAVE_LRAND48 if "lrand48" is declared and links
 dnl
 dnl GLIBCXX_CHECK_STDLIB_SUPPORT
 AC_DEFUN(GLIBCXX_CHECK_STDLIB_SUPPORT, [
@@ -352,7 +381,7 @@ AC_DEFUN(GLIBCXX_CHECK_STDLIB_SUPPORT, [
 
   GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
   GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
-  AC_CHECK_FUNCS(drand48)
+  GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_0(lrand48)
 
   CXXFLAGS="$ac_save_CXXFLAGS"
 ])