------- Comment #1 from schwab at suse dot de 2009-01-06 08:57 ------- Probably the Solaris /bin/sh misparses ${BOOT_CFLAGS+'print "BOOT_CFLAGS='"${BOOT_CFLAGS}"'";'}. The autoconf manual describes a similar bug in connection with ${foo='}'}.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38739