ENH: Added test for explicit instantiation support.

2 files changed, 51 insertions, 25 deletions

diff --git a/Templates/configure b/Templates/configure
index 83e6f2f..0796c05 100755
--- a/Templates/configure
+++ b/Templates/configure
@@ -2929,7 +2929,20 @@ case $system in
     ;;
 esac
 
-# if running on darwin no explicit template instantiations
+CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION=""
+if test $ac_cv_prog_gxx = no; then
+    echo $ac_n "checking whether ${CXX} supports explicit instantiation""... $ac_c" 1>&6
+  echo 'template<class T>class x{};template class x<int>;' > conftest.cc
+  if test -z "`${CXX} -c conftest.cc 2>&1`"; then
+    echo "$ac_t""yes" 1>&6
+  else
+    echo "$ac_t""no" 1>&6
+    CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION="1"
+  fi
+  rm -f conftest*
+fi
+# if running on darwin no explicit template instantiations even though
+# syntax is supported.
 case $system in 
   Darwin*) 
     CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION="1"
@@ -2993,17 +3006,17 @@ for ac_hdr in sys/prctl.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2997: checking for $ac_hdr" >&5
+echo "configure:3010: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3002 "configure"
+#line 3015 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3007: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3020: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3048,17 +3061,17 @@ for ac_hdr in pthread.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:3052: checking for $ac_hdr" >&5
+echo "configure:3065: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3057 "configure"
+#line 3070 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3062: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3075: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3087,7 +3100,7 @@ done
 if test "$use_pthreads" = "yes"; then
   if test "$use_sproc" = "no"; then
     echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
-echo "configure:3091: checking for pthread_create in -lpthreads" >&5
+echo "configure:3104: checking for pthread_create in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3095,7 +3108,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3099 "configure"
+#line 3112 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3106,7 +3119,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3110: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3123: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3127,7 +3140,7 @@ else
 fi
 
     echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:3131: checking for pthread_create in -lpthread" >&5
+echo "configure:3144: checking for pthread_create in -lpthread" >&5
 ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3135,7 +3148,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3139 "configure"
+#line 3152 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3146,7 +3159,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3150: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3163: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3169,7 +3182,7 @@ fi
 # Work around Solaris 5.6 and 5.7 bug:
     if test "`uname -s -r`" = "SunOS 5.6"; then
       echo $ac_n "checking for thr_create in -lthread""... $ac_c" 1>&6
-echo "configure:3173: checking for thr_create in -lthread" >&5
+echo "configure:3186: checking for thr_create in -lthread" >&5
 ac_lib_var=`echo thread'_'thr_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3177,7 +3190,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3181 "configure"
+#line 3194 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3188,7 +3201,7 @@ int main() {
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3192: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3205: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3211,7 +3224,7 @@ fi
     fi
     if test "`uname -s -r`" = "SunOS 5.7"; then
       echo $ac_n "checking for thr_create in -lthread""... $ac_c" 1>&6
-echo "configure:3215: checking for thr_create in -lthread" >&5
+echo "configure:3228: checking for thr_create in -lthread" >&5
 ac_lib_var=`echo thread'_'thr_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3219,7 +3232,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3223 "configure"
+#line 3236 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3230,7 +3243,7 @@ int main() {
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3234: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3247: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3340,7 +3353,7 @@ fi
 # ansi stream files (without the .h)
 if test $ac_cv_prog_gxx = no; then
   echo $ac_n "checking ansi standard C++ stream headers ""... $ac_c" 1>&6
-echo "configure:3344: checking ansi standard C++ stream headers " >&5 
+echo "configure:3357: checking ansi standard C++ stream headers " >&5 
   rm -rf conftest.*
   cat > conftest.cc <<!
 #include <iostream>
@@ -3357,7 +3370,7 @@ fi
 # check to see if stl is in the std namespace
 if test $ac_cv_prog_gxx = no; then
   echo $ac_n "checking ansi standard namespace support ""... $ac_c" 1>&6
-echo "configure:3361: checking ansi standard namespace support " >&5 
+echo "configure:3374: checking ansi standard namespace support " >&5 
   rm -rf conftest.*
   cat > conftest.cc <<!
 #include <list>
@@ -3375,7 +3388,7 @@ fi
 # check to see if for scoping is supported
 if test $ac_cv_prog_gxx = no; then
   echo $ac_n "checking ansi for scope support ""... $ac_c" 1>&6
-echo "configure:3379: checking ansi for scope support " >&5 
+echo "configure:3392: checking ansi for scope support " >&5 
   rm -rf conftest.*
   cat > conftest.cc <<!
 void foo() { for(int i;;); for(int i;;); }
@@ -3400,7 +3413,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3404: checking for $ac_word" >&5
+echo "configure:3417: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_RUNMAKE'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3440,7 +3453,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3444: checking for $ac_word" >&5
+echo "configure:3457: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CMAKE_AR_TMP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
diff --git a/Templates/configure.in b/Templates/configure.in
index 3a62545..a1eb7a5 100644
--- a/Templates/configure.in
+++ b/Templates/configure.in
@@ -477,7 +477,20 @@ case $system in
     ;;
 esac
 
-# if running on darwin no explicit template instantiations
+CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION=""
+if test $ac_cv_prog_gxx = no; then
+    echo $ac_n "checking whether ${CXX} supports explicit instantiation""... $ac_c" 1>&6
+  echo 'template<class T>class x{};template class x<int>;' > conftest.cc
+  if test -z "`${CXX} -c conftest.cc 2>&1`"; then
+    echo "$ac_t""yes" 1>&6
+  else
+    echo "$ac_t""no" 1>&6
+    CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION="1"
+  fi
+  rm -f conftest*
+fi
+# if running on darwin no explicit template instantiations even though
+# syntax is supported.
 case $system in 
   Darwin*) 
     CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION="1"