Visual C++ and mingw32 fixes for large files

1 files changed, 11 insertions, 0 deletions

diff --git a/config-mingw32 b/config-mingw32
index 3fabdb0e..d128e3f6 100755
--- a/config-mingw32
+++ b/config-mingw32
@@ -1,2 +1,13 @@
 #!/bin/sh
 ./configure --disable-test-compare-images --enable-external-libs --with-windows-wordsize=32 --with-buildrules=mingw
+# As of autoconf 2.69 and gcc 4.6, autoconf's configure fails to
+# recognize that defining _FILE_OFFSET_BITS works with mingw32.
+# Append to qpdf-config.h rather than passing CPPFLAGS on the
+# commandline.  This way we don't defeat the fact that test_large_file
+# and other things that only use the public interface can be built
+# without any special flags.
+cat >> libqpdf/qpdf/qpdf-config.h <<EOF
+#ifndef _FILE_OFFSET_BITS
+# define _FILE_OFFSET_BITS 64
+#endif
+EOF