From b2992ce84170f0cba23c327f2aa56285c598ca90 Mon Sep 17 00:00:00 2001
From: Bill Wendling <wendling@ncsa.uiuc.edu>
Date: Tue, 5 Dec 2000 01:39:11 -0500
Subject: [svn-r3076] Purpose: 	New Flag Description: 	Added a test to see if
 the C++ compiler can handle the bool 	datatype. If not, then it defines the
 BOOL_NOTDEFINED macro.

---
 c++/configure    | 37 +++++++++++++++++++++++++++++++++++--
 c++/configure.in | 10 ++++++++++
 2 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/c++/configure b/c++/configure
index ebd6b91..461cf3a 100755
--- a/c++/configure
+++ b/c++/configure
@@ -1932,6 +1932,39 @@ rm -fr conftest*
 fi
 
 
+echo $ac_n "checking if $CXX supports bool types""... $ac_c" 1>&6
+echo "configure:1937: checking if $CXX supports bool types" >&5
+if test "$cross_compiling" = yes; then
+    { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1942 "configure"
+#include "confdefs.h"
+#ifdef __cplusplus
+extern "C" void exit(int);
+#endif
+
+int main(void) { bool flag; return 0; }
+
+EOF
+if { (eval echo configure:1951: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  
+echo yes
+
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  
+echo no
+CXXFLAGS="${CXXFLAGS} -DBOOL_NOTDEFINED"
+
+fi
+rm -fr conftest*
+fi
+
+
 
 cat > confcache <<\EOF
 # This file is a shell script that caches the results of configure
@@ -1982,7 +2015,7 @@ rm -f confcache
 
 
 echo $ac_n "checking make""... $ac_c" 1>&6
-echo "configure:1986: checking make" >&5
+echo "configure:2019: checking make" >&5
 
 if test "`${MAKE-make} --version -f /dev/null 2>/dev/null |\
 	sed -n 1p|cut -c1-8`" = "GNU Make"; then
@@ -1999,7 +2032,7 @@ fi
 
 if test -z "$DEPEND"; then
    echo $ac_n "checking how to include a makefile""... $ac_c" 1>&6
-echo "configure:2003: checking how to include a makefile" >&5
+echo "configure:2036: checking how to include a makefile" >&5
 
       cat >makeinc <<EOF
 foo:
diff --git a/c++/configure.in b/c++/configure.in
index 9770738..62aa13d 100644
--- a/c++/configure.in
+++ b/c++/configure.in
@@ -289,6 +289,16 @@ echo yes
 CXXFLAGS="${CXXFLAGS} -DOLD_HEADER_FILENAME"
 ])
 
+AC_MSG_CHECKING(if $CXX supports bool types)
+AC_TRY_RUN([
+int main(void) { bool flag; return 0; }
+], [
+echo yes
+], [
+echo no
+CXXFLAGS="${CXXFLAGS} -DBOOL_NOTDEFINED"
+])
+
 dnl ----------------------------------------------------------------------
 dnl Checks for header files.
 dnl
-- 
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