+png_check_sig ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ 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'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_png_png_check_sig=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_png_png_check_sig=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_png_png_check_sig" >&5
+echo "${ECHO_T}$ac_cv_lib_png_png_check_sig" >&6
+if test $ac_cv_lib_png_png_check_sig = yes; then
+ PNG_LINK=" -lpng -lz"
+fi
+
+ fi
+
+ if test "x$PNG_LINK" = "x" ; then
+ if test "$wxUSE_LIBPNG" = "sys" ; then
+ { { echo "$as_me:$LINENO: error: system png library not found or too old! Use --with-libpng=builtin to use built-in version" >&5
+echo "$as_me: error: system png library not found or too old! Use --with-libpng=builtin to use built-in version" >&2;}
+ { (exit 1); exit 1; }; }
+ else
+ { echo "$as_me:$LINENO: WARNING: system png library not found or too old, will use built-in instead" >&5
+echo "$as_me: WARNING: system png library not found or too old, will use built-in instead" >&2;}
+ wxUSE_LIBPNG=builtin
+ fi
+ else
+ wxUSE_LIBPNG=sys
+ fi
+ fi
+ fi
+
+ SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS png"
+fi
+
+
+JPEG_LINK=
+if test "$wxUSE_LIBJPEG" != "no" ; then
+ cat >>confdefs.h <<\_ACEOF
+#define wxUSE_LIBJPEG 1
+_ACEOF
+
+
+ if test "$wxUSE_MGL" = 1 -a "$wxUSE_LIBJPEG" = "builtin" ; then
+ { echo "$as_me:$LINENO: WARNING: wxMGL doesn't work with builtin jpeg library, will use MGL one instead" >&5
+echo "$as_me: WARNING: wxMGL doesn't work with builtin jpeg library, will use MGL one instead" >&2;}
+ wxUSE_LIBJPEG=sys
+ fi
+
+ if test "$wxUSE_MGL" != 1 ; then
+ if test "$wxUSE_LIBJPEG" = "sys" -o "$wxUSE_LIBJPEG" = "yes" ; then
+ echo "$as_me:$LINENO: checking for jpeglib.h" >&5
+echo $ECHO_N "checking for jpeglib.h... $ECHO_C" >&6
+ if test "${ac_cv_header_jpeglib_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #undef HAVE_STDLIB_H
+ #include <stdio.h>
+ #include <jpeglib.h>
+
+int
+main ()
+{
+
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ 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'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_header_jpeglib_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_header_jpeglib_h=no
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+ echo "$as_me:$LINENO: result: $ac_cv_header_jpeglib_h" >&5
+echo "${ECHO_T}$ac_cv_header_jpeglib_h" >&6
+
+ if test "$ac_cv_header_jpeglib_h" = "yes"; then
+ echo "$as_me:$LINENO: checking for jpeg_read_header in -ljpeg" >&5
+echo $ECHO_N "checking for jpeg_read_header in -ljpeg... $ECHO_C" >&6
+if test "${ac_cv_lib_jpeg_jpeg_read_header+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-ljpeg $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char jpeg_read_header ();
+int
+main ()
+{
+jpeg_read_header ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ 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'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_jpeg_jpeg_read_header=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_jpeg_jpeg_read_header=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_jpeg_jpeg_read_header" >&5
+echo "${ECHO_T}$ac_cv_lib_jpeg_jpeg_read_header" >&6
+if test $ac_cv_lib_jpeg_jpeg_read_header = yes; then
+ JPEG_LINK=" -ljpeg"
+fi
+
+ fi
+
+ if test "x$JPEG_LINK" = "x" ; then
+ if test "$wxUSE_LIBJPEG" = "sys" ; then
+ { { echo "$as_me:$LINENO: error: system jpeg library not found! Use --with-libjpeg=builtin to use built-in version" >&5
+echo "$as_me: error: system jpeg library not found! Use --with-libjpeg=builtin to use built-in version" >&2;}
+ { (exit 1); exit 1; }; }
+ else
+ { echo "$as_me:$LINENO: WARNING: system jpeg library not found, will use built-in instead" >&5
+echo "$as_me: WARNING: system jpeg library not found, will use built-in instead" >&2;}
+ wxUSE_LIBJPEG=builtin
+ fi
+ else
+ wxUSE_LIBJPEG=sys
+
+ if test "$wxUSE_MSW" = 1; then
+ echo "$as_me:$LINENO: checking for boolean" >&5
+echo $ECHO_N "checking for boolean... $ECHO_C" >&6
+if test "${ac_cv_type_boolean+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <windows.h>
+
+int
+main ()
+{
+if ((boolean *) 0)
+ return 0;
+if (sizeof (boolean))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ 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'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_boolean=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_boolean=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_boolean" >&5
+echo "${ECHO_T}$ac_cv_type_boolean" >&6
+if test $ac_cv_type_boolean = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_BOOLEAN 1
+_ACEOF
+
+
+ echo "$as_me:$LINENO: checking for boolean" >&5
+echo $ECHO_N "checking for boolean... $ECHO_C" >&6
+if test "${ac_cv_type_boolean+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #undef HAVE_BOOLEAN
+ #include <stdio.h>
+ #include <jpeglib.h>
+
+
+int
+main ()
+{
+if ((boolean *) 0)
+ return 0;
+if (sizeof (boolean))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ 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'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_boolean=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_type_boolean=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_boolean" >&5
+echo "${ECHO_T}$ac_cv_type_boolean" >&6
+
+echo "$as_me:$LINENO: checking size of boolean" >&5
+echo $ECHO_N "checking size of boolean... $ECHO_C" >&6
+if test "${ac_cv_sizeof_boolean+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$ac_cv_type_boolean" = yes; then
+ # The cast to unsigned long works around a bug in the HP C Compiler
+ # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+ # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+ # This bug is HP SR number 8606223364.
+ if test "$cross_compiling" = yes; then
+ # Depending upon the size, compute the lo and hi bounds.
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #undef HAVE_BOOLEAN
+ #include <stdio.h>
+ #include <jpeglib.h>
+
+
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (boolean))) >= 0)];
+test_array [0] = 0
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ 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'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_lo=0 ac_mid=0
+ while :; do
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+ #undef HAVE_BOOLEAN
+ #include <stdio.h>
+ #include <jpeglib.h>
+
+
+int
+main ()
+{
+static int test_array [1 - 2 * !(((long) (sizeof (boolean))) <= $ac_mid)];
+test_array [0] = 0
+