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-rw-r--r--Templates/cxxconfigure.in202
1 files changed, 122 insertions, 80 deletions
diff --git a/Templates/cxxconfigure.in b/Templates/cxxconfigure.in
index 3e1f5b10..168ca7b 100644
--- a/Templates/cxxconfigure.in
+++ b/Templates/cxxconfigure.in
@@ -41,16 +41,23 @@ CXXFLAGS=$save_CXXFLAGS
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*
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="$CMAKE_ANSI_CXXFLAGS $CXXFLAGS"
+ AC_MSG_CHECKING([whether ${CXX} supports explicit instantiation])
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ template<class T>class x{};template class x<int>;
+ ],,[
+ AC_MSG_RESULT(yes)
+ ],[
+ CMAKE_NO_EXPLICIT_TEMPLATE_INSTANTIATION=1
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
fi
+
# if running on darwin no explicit template instantiations even though
# syntax is supported.
case $system in
@@ -65,27 +72,40 @@ CMAKE_ANSI_CXXFLAGS=""
if test $ac_cv_prog_gxx = no; then
case $system in
IRIX-5* | IRIX-6* | IRIX64-6* | IRIX-64-6*)
- echo $ac_n "checking whether ${CXX} accepts -LANG:std""... $ac_c" 1>&6
- echo 'void f(){}' > conftest.c
- if test -z "`${CXX} -LANG:std -c conftest.c 2>&1`"; then
- echo "$ac_t""yes" 1>&6
- CMAKE_ANSI_CXXFLAGS="-LANG:std"
- else
- echo "$ac_t""no" 1>&6
- fi
- rm -f conftest*
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="-LANG:std $CXXFLAGS"
+ AC_MSG_CHECKING([whether ${CXX} accepts -LANG:std])
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ void foo() {}
+ ],,[
+ AC_MSG_RESULT(yes)
+ CMAKE_ANSI_CXXFLAGS="-LANG:std"
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
;;
OSF1-*)
- echo $ac_n "checking whether ${CXX} accepts -std strict_ansi -nopure_cname""... $ac_c" 1>&6
- echo 'void f(){}' > conftest.c
- if test -z "`${CXX} -std strict_ansi -nopure_cname -c conftest.c 2>&1`"; then
- echo "$ac_t""yes" 1>&6
- CMAKE_ANSI_CXXFLAGS="-std strict_ansi -nopure_cname"
- else
- echo "$ac_t""no" 1>&6
- fi
- rm -f conftest*
- ;;
+
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="-std strict_ansi -nopure_cname $CXXFLAGS"
+ AC_MSG_CHECKING([whether ${CXX} accepts -std strict_ansi -nopure_cname])
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ void foo() {}
+ ],,[
+ AC_MSG_RESULT(yes)
+ CMAKE_ANSI_CXXFLAGS="-std strict_ansi -nopure_cname"
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
+ ;;
esac
fi
AC_SUBST(CMAKE_ANSI_CXXFLAGS)
@@ -94,15 +114,21 @@ AC_SUBST(CMAKE_ANSI_CXXFLAGS)
# to get the templates compiled correctly
CMAKE_TEMPLATE_FLAGS=""
if test $ac_cv_prog_gxx = no; then
- echo $ac_n "checking whether ${CXX} accepts -ptused -no_prelink""... $ac_c" 1>&6
- echo 'void f(){}' > conftest.cc
- if test -z "`${CXX} -ptused -no_prelink -c conftest.cc 2>&1`"; then
- echo "$ac_t""yes" 1>&6
- CMAKE_TEMPLATE_FLAGS="-ptused -no_prelink"
- else
- echo "$ac_t""no" 1>&6
- fi
- rm -f conftest*
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="$CMAKE_ANSI_CXXFLAGS $CXXFLAGS -ptused -no_prelink"
+ AC_MSG_CHECKING([whether ${CXX} accepts -ptused -no_prelink])
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ void foo() {}
+ ],,[
+ AC_MSG_RESULT(yes)
+ CMAKE_TEMPLATE_FLAGS="-ptused -no_prelink"
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
fi
AC_SUBST(CMAKE_TEMPLATE_FLAGS)
@@ -110,64 +136,80 @@ AC_SUBST(CMAKE_TEMPLATE_FLAGS)
# check non-g++ compilers to see if they have the standard
# ansi stream files (without the .h)
if test $ac_cv_prog_gxx = no; then
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="$CMAKE_ANSI_CXXFLAGS $CXXFLAGS"
AC_MSG_CHECKING( ansi standard C++ stream headers )
- rm -rf conftest.*
- cat > conftest.cc <<!
-#include <iostream>
-!
- if test -z "`${CXX} ${CMAKE_ANSI_CXXFLAGS} $CXXFLAGS $CPPFLAGS -c conftest.cc 2>&1`"; then
- echo "$ac_t""yes" 1>&6
- else
- CMAKE_NO_ANSI_STREAM_HEADERS="1"
- echo "$ac_t""no" 1>&6
- fi
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ #include <iostream>
+ ],,[
+ AC_MSG_RESULT(yes)
+ ],[
+ CMAKE_NO_ANSI_STREAM_HEADERS=1
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
fi
AC_SUBST(CMAKE_NO_ANSI_STREAM_HEADERS)
# check compilers to see if they have std::stringstream
-AC_MSG_CHECKING( for ansi standard C++ stringstream )
-rm -rf conftest.*
-cat > conftest.cc <<!
+CXXFLAGS_ORIG="$CXXFLAGS"
+CXXFLAGS="$CMAKE_ANSI_CXXFLAGS $CXXFLAGS"
+AC_MSG_CHECKING([for ansi standard C++ stringstream])
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+AC_TRY_COMPILE([
#include <sstream>
-!
-if test -z "`${CXX} ${CMAKE_ANSI_CXXFLAGS} $CXXFLAGS $CPPFLAGS -c conftest.cc 2>&1`"; then
- echo "$ac_t""yes" 1>&6
-else
- CMAKE_NO_ANSI_STRING_STREAM="1"
- echo "$ac_t""no" 1>&6
-fi
+],,[
+AC_MSG_RESULT(yes)
+],[
+CMAKE_NO_ANSI_STRING_STREAM=1
+AC_MSG_RESULT(no)
+])
+AC_LANG_RESTORE
+CXXFLAGS="$CXXFLAGS_ORIG"
AC_SUBST(CMAKE_NO_ANSI_STRING_STREAM)
# check to see if stl is in the std namespace
if test $ac_cv_prog_gxx = no; then
- AC_MSG_CHECKING( ansi standard namespace support )
- rm -rf conftest.*
- cat > conftest.cc <<!
-#include <list>
-void foo() { std::list<int> l; }
-!
- if test -z "`${CXX} ${CMAKE_ANSI_CXXFLAGS} $CXXFLAGS $CPPFLAGS -c conftest.cc 2>&1`"; then
- echo "$ac_t""yes" 1>&6
- else
- CMAKE_NO_STD_NAMESPACE="1"
- echo "$ac_t""no" 1>&6
- fi
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="$CMAKE_ANSI_CXXFLAGS $CXXFLAGS"
+ AC_MSG_CHECKING([whether the std namespace is supported])
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ #include <list>
+ void foo() { std::list<int>(); }
+ ],,[
+ AC_MSG_RESULT(yes)
+ ],[
+ CMAKE_NO_STD_NAMESPACE=1
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
fi
AC_SUBST(CMAKE_NO_STD_NAMESPACE)
# check to see if for scoping is supported
if test $ac_cv_prog_gxx = no; then
- AC_MSG_CHECKING( ansi for scope support )
- rm -rf conftest.*
- cat > conftest.cc <<!
-void foo() { for(int i;;); for(int i;;); }
-!
- if test -z "`${CXX} ${CMAKE_ANSI_CXXFLAGS} $CXXFLAGS $CPPFLAGS -c conftest.cc 2>&1`"; then
- echo "$ac_t""yes" 1>&6
- else
- CMAKE_NO_ANSI_FOR_SCOPE="1"
- echo "$ac_t""no" 1>&6
- fi
+ CXXFLAGS_ORIG="$CXXFLAGS"
+ CXXFLAGS="$CMAKE_ANSI_CXXFLAGS $CXXFLAGS"
+ AC_MSG_CHECKING([ansi for scope support])
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([
+ void foo() { for(int i;;); for(int i;;); }
+ ],,[
+ AC_MSG_RESULT(yes)
+ ],[
+ CMAKE_NO_ANSI_FOR_SCOPE=1
+ AC_MSG_RESULT(no)
+ ])
+ AC_LANG_RESTORE
+ CXXFLAGS="$CXXFLAGS_ORIG"
fi
AC_SUBST(CMAKE_NO_ANSI_FOR_SCOPE)
generated by cgit v0.12 at 2024-12-29 16:45:19 (GMT)