diff options
| author | Joel Martin <github@martintribe.org> | 2011-07-19 13:40:34 +0200 |
|---|---|---|
| committer | Christian Beier <dontmind@freeshell.org> | 2011-07-22 17:56:26 +0200 |
| commit | 896ca2036c35b89a7f63e1adefe5e3724bf4d40d (patch) | |
| tree | d59dd0310911a14e65f55378897f146a0b1c2184 /configure.ac | |
| parent | 17ce0c56281f55316685f194b34e5f99f4024a5f (diff) | |
| download | libtdevnc-896ca2036c35b89a7f63e1adefe5e3724bf4d40d.tar.gz libtdevnc-896ca2036c35b89a7f63e1adefe5e3724bf4d40d.zip | |
tightPng: Add initial tightPng encoding support.
http://wiki.qemu.org/VNC_Tight_PNG
Signed-off-by: Joel Martin <github@martintribe.org>
Signed-off-by: Christian Beier <dontmind@freeshell.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 3203d7a..280ea58 100644 --- a/configure.ac +++ b/configure.ac @@ -578,6 +578,60 @@ ftp://ftp.uu.net/graphics/jpeg/ fi fi +AC_ARG_WITH(png, +[ --without-png disable support for png] +[ --with-png=DIR use png include/library files in DIR],,) + +# At this point: +# no png on command line with_png="" +# -with-png with_png="yes" +# -without-png with_png="no" +# -with-png=/foo/dir with_png="/foo/dir" + +if test "x$with_png" != "xno"; then + if test ! -z "$with_png" -a "x$with_png" != "xyes"; then + # add user supplied directory to flags: + saved_CPPFLAGS="$CPPFLAGS" + saved_LDFLAGS="$LDFLAGS" + CPPFLAGS="$CPPFLAGS -I$with_png/include" + LDFLAGS="$LDFLAGS -L$with_png/lib" + if test "x$ld_minus_R" = "xno"; then + : + elif test "x$GCC" = "xyes"; then + # this is not complete... in general a rat's nest. + LDFLAGS="$LDFLAGS -Xlinker -R$with_png/lib" + else + LDFLAGS="$LDFLAGS -R$with_png/lib" + fi + fi + AC_CHECK_HEADER(png.h, HAVE_PNGLIB_H="true") + if test "x$HAVE_PNGLIB_H" = "xtrue"; then + AC_CHECK_LIB(png, png_create_write_struct, , HAVE_PNGLIB_H="") + fi + if test ! -z "$with_png" -a "x$with_png" != "xyes"; then + if test "x$HAVE_PNGLIB_H" != "xtrue"; then + # restore old flags on failure: + CPPFLAGS="$saved_CPPFLAGS" + LDFLAGS="$saved_LDFLAGS" + fi + fi + if test "$build_x11vnc" = "yes"; then + if test "x$HAVE_PNGLIB_H" != "xtrue"; then + AC_MSG_WARN([ +========================================================================== +*** The libpng compression library was not found. *** +This may lead to reduced performance, especially over slow links. +If libpng is in a non-standard location use --with-png=DIR to +indicate the header file is in DIR/include/png.h and the library +in DIR/lib/libpng.a. A copy of libpng may be obtained from: +http://www.libpng.org/pub/png/libpng.html +========================================================================== +]) + sleep 5 + fi + fi +fi + AC_ARG_WITH(libz, [ --without-libz disable support for deflate],,) AC_ARG_WITH(zlib, @@ -654,6 +708,7 @@ AM_CONDITIONAL(WITH_TIGHTVNC_FILETRANSFER, test "$with_tightvnc_filetransfer" = AM_CONDITIONAL(HAVE_LIBZ, test ! -z "$HAVE_ZLIB_H") AM_CONDITIONAL(HAVE_LIBJPEG, test ! -z "$HAVE_JPEGLIB_H") +AM_CONDITIONAL(HAVE_LIBPNG, test ! -z "$HAVE_PNGLIB_H") SDLCONFIG="sdl-config" |