On unicode builds detect gcc 3.4 precompiled header bug (bugzilla 13361).

[wxWidgets.git] / configure

diff --git a/configure b/configure
index 87b9dbee5bb30674f014594cf6ada212bef8c1ce..3cdc5dc7d829253da49c9c4dc4f5ecbae305737b 100755 (executable)
--- a/configure
+++ b/configure
@@ -47084,6 +47084,43 @@ if test "$wxUSE_MAC" = 1 ; then
     #       The makefile currently uses AR and RANLIB, which libtool apparently supercedes.
 fi
 
+if test "$wxUSE_UNICODE" = yes -a "$GCC" = yes -a "$bk_use_pch" != no
+then
+    echo "$as_me:$LINENO: checking for gcc precompiled header bug" >&5
+echo $ECHO_N "checking for gcc precompiled header bug... $ECHO_C" >&6
+if test "${wx_cv_gcc_pch_bug+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+            wx_cv_gcc_pch_bug=no
+            echo 'const wchar_t test_var[] = L"wide string";' > conftest.h
+
+            if $CXX conftest.h >& /dev/null
+            then
+                {
+                    echo '#include "conftest.h"'
+                    echo 'const wchar_t *test() { return test_var; }'
+                } > conftest.cpp
+
+                if $CXX -c -o conftest.o conftest.cpp >& /dev/null
+                then
+                    tr -dc 'a-z' < conftest.o |
+                        grep 'widestring' >& /dev/null ||
+                        wx_cv_gcc_pch_bug=yes
+                fi
+            fi
+
+            rm -f conftest.h conftest.gch conftest.cpp conftest.o
+
+fi
+echo "$as_me:$LINENO: result: $wx_cv_gcc_pch_bug" >&5
+echo "${ECHO_T}$wx_cv_gcc_pch_bug" >&6
+
+    if test "$wx_cv_gcc_pch_bug" = yes; then
+                        bk_use_pch=no
+    fi
+fi
+
 
 
 
@@ -50018,6 +50055,20 @@ echo "$as_me: error: Versions of Bakefile used to generate makefiles ($BAKEFILE_
     fi
 
 
+if test $GCC_PCH = 1
+then
+    if test "$wx_cv_gcc_pch_bug" = yes; then
+        { echo "$as_me:$LINENO: WARNING: *** Precompiled header support is broken on this compiler" >&5
+echo "$as_me: WARNING: *** Precompiled header support is broken on this compiler" >&2;}
+        { echo "$as_me:$LINENO: WARNING: *** --enable-precomp-headers is not recommended" >&5
+echo "$as_me: WARNING: *** --enable-precomp-headers is not recommended" >&2;}
+        { echo "$as_me:$LINENO: WARNING: *** see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13361" >&5
+echo "$as_me: WARNING: *** see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13361" >&2;}
+    fi
+
+    CPPFLAGS="-DWX_PRECOMP $CPPFLAGS"
+fi
+
 
 if test "$wxUSE_MAC" = 1 ; then
     if test "x$wxUSE_UNIVERSAL_BINARY" != "xno" ; then
@@ -50055,10 +50106,6 @@ if test "$wxUSE_OMF" = "yes"; then
     esac
 fi
 
-if test $GCC_PCH = 1 ; then
-    CPPFLAGS="-DWX_PRECOMP $CPPFLAGS"
-fi
-
 WXCONFIG_CPPFLAGS="$WXCONFIG_CPPFLAGS $TOOLCHAIN_DEFS"
 
 SAMPLES_SUBDIRS="`echo $SAMPLES_SUBDIRS | tr -s ' ' | tr ' ' '\n' | sort | uniq | tr '\n' ' '| tr -d '\r'`"