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455
if test -z "$xdgopen"; then
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AC_MSG_ERROR([xdg-open not found. This program is the preferred way to launch the default browser. Please install the xdg-utils.])
459
PKG_CHECK_MODULES(LIBGTK, gtk+-2.0,, [
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# Some more obscure platforms (e.g. HP-UX) don't have setenv which is required by POSIX