Need to check for getsockopt argument in C++ mode.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43312 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/configure b/configure
index e1486e6ffbb565bad898eaf47cbaee6af6ceec04..2bef6d2a7d18383e36234e265f333b330ac3a8e3 100755 (executable)
--- a/configure
+++ b/configure
@@ -44674,10 +44674,11 @@ else
 sed 's/^/| /' conftest.$ac_ext >&5
 
 
-                                                                                                                                                                        CFLAGS_OLD="$CFLAGS"
-                        if test "$GCC" = yes ; then
-                            CFLAGS="-Werror $CFLAGS"
-                        fi
+                                                                                                                                                ac_ext=cc
+ac_cpp='$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.$ac_ext <<_ACEOF
 /* confdefs.h.  */
@@ -44709,7 +44710,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-        { ac_try='test -z "$ac_c_werror_flag"                   || test ! -s conftest.err'
+        { ac_try='test -z "$ac_cxx_werror_flag"                         || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -44756,7 +44757,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-        { ac_try='test -z "$ac_c_werror_flag"                   || test ! -s conftest.err'
+        { ac_try='test -z "$ac_cxx_werror_flag"                         || test ! -s conftest.err'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -44780,8 +44781,12 @@ rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 
 fi
 rm -f conftest.err 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
 
-                        CFLAGS="$CFLAGS_OLD"
 
 
 fi

diff --git a/configure.in b/configure.in
index cea9dafdb0e09ebfd5d66720823f6c1dd081e5cb..c54e99f61a45249e6802c9d325eddbce9d1c6ae6 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -6256,17 +6256,12 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
                     ],
                     wx_cv_type_getsockopt5=socklen_t,
                     [
-                        dnl the compiler will compile the version with size_t
-                        dnl even if the real type of the last parameter is int
-                        dnl but it should give at least a warning about
-                        dnl converting between incompatible pointer types, so
-                        dnl try to use it to get the correct behaviour at
-                        dnl least with gcc (otherwise we'd always use size_t)
-                        CFLAGS_OLD="$CFLAGS"
-                        if test "$GCC" = yes ; then
-                            CFLAGS="-Werror $CFLAGS"
-                        fi
-
+                        dnl Note that the rules for compatibility of pointers
+                        dnl are somewhat different between C and C++, so code 
+                        dnl that fails in C++ may not even give a warning about
+                        dnl converting between incompatible pointer types in C.
+                        dnl So this test needs to be done in C++ mode.
+                        AC_LANG_PUSH(C++)
                         AC_TRY_COMPILE(
                             [
                                 #include <sys/types.h>
@@ -6290,8 +6285,7 @@ if test "$wxUSE_SOCKETS" = "yes" ; then
                                 wx_cv_type_getsockopt5=unknown
                             )
                         )
-
-                        CFLAGS="$CFLAGS_OLD"
+                        AC_LANG_POP()
                     ]
                 )
             ])