+ if test "$wxUSE_LIBPNG" = "sys" -a "$wxUSE_ZLIB" != "sys" ; then
+ echo "configure: warning: --with-libpng=sys doesn't work without --with-zlib=sys, will compile the built-in libpng instead" 1>&2
+ wxUSE_LIBPNG=yes
+ fi
+
+ if test "$wxUSE_LIBPNG" = "yes" ; then
+ PNG_INCLUDE="-I\${top_srcdir}/src/png"
+ else
+ PNG_LINK=
+ ac_safe=`echo "png.h" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for png.h""... $ac_c" 1>&6
+echo "configure:11663: checking for png.h" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 11668 "configure"
+#include "confdefs.h"
+#include <png.h>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:11673: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+ rm -rf conftest*
+ eval "ac_cv_header_$ac_safe=yes"
+else
+ echo "$ac_err" >&5
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ echo $ac_n "checking for png_check_sig in -lpng""... $ac_c" 1>&6
+echo "configure:11690: checking for png_check_sig in -lpng" >&5
+ac_lib_var=`echo png'_'png_check_sig | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ ac_save_LIBS="$LIBS"
+LIBS="-lpng -lz -lm $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 11698 "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
+ builtin and then its argument prototype would still apply. */
+char png_check_sig();
+
+int main() {
+png_check_sig()
+; return 0; }
+EOF
+if { (eval echo configure:11709: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+ echo "$ac_t""yes" 1>&6
+ PNG_LINK="-lpng"
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+
+else
+ echo "$ac_t""no" 1>&6
+fi
+
+ if test "x$PNG_LINK" = "x" ; then
+ { echo "configure: error: system png library not found! Use --with-libpng=yes to use the built-in libpng" 1>&2; exit 1; }
+ fi
+ fi
+
projects / wxWidgets.git / blobdiff