diff -r b4a3277b3c5f -r d955df81d716 common/autoconf/libraries.m4 --- a/common/autoconf/libraries.m4 Tue Apr 02 13:59:30 2013 +0100 +++ b/common/autoconf/libraries.m4 Tue Apr 02 14:13:06 2013 -0400 @@ -499,11 +499,36 @@ # Check for the gif library # -USE_EXTERNAL_LIBJPEG=true -AC_CHECK_LIB(gif, main, [], - [ USE_EXTERNAL_LIBGIF=false - AC_MSG_NOTICE([Will use gif decoder bundled with the OpenJDK source]) - ]) +AC_ARG_WITH(giflib, [AS_HELP_STRING([--with-giflib], + [use giflib from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])]) + + +AC_MSG_CHECKING([for which giflib to use]) + +# default is bundled +DEFAULT_GIFLIB=bundled + +# +# if user didn't specify, use DEFAULT_GIFLIB +# +if test "x${with_giflib}" = "x"; then + with_giflib=${DEFAULT_GIFLIB} +fi + +AC_MSG_RESULT(${with_giflib}) + +if test "x${with_giflib}" = "xbundled"; then + USE_EXTERNAL_LIBGIF=false +elif test "x${with_giflib}" = "xsystem"; then + AC_CHECK_HEADER(gif_lib.h, [], + [ AC_MSG_ERROR([--with-giflib=system specified, but gif_lib.h not found!])]) + AC_CHECK_LIB(gif, DGifGetCode, [], + [ AC_MSG_ERROR([--with-giflib=system specified, but no giflib found!])]) + + USE_EXTERNAL_LIBGIF=true +else + AC_MSG_ERROR([Invalid value of --with-giflib: ${with_giflib}, use 'system' or 'bundled']) +fi AC_SUBST(USE_EXTERNAL_LIBGIF) ###############################################################################