use isfinite() or finite() depending on availability
pointer warning fixes
upgrade autotools
remove errors with ./configure --enable-Werror
remove pointer sign warnings
check cc flags viability before setting them
split ADD_CFLAGS and TESTSUITE_CFLAGS
fix spacing
PER-encoding of integers wider than 32 bits
add signed integer tests for test 134
extensibility shall not change the type from wide to narrow
change type width detection logic
change type width detection logic
Merge remote-tracking branch 'upstream/master'
Fix bug in GraphicString type def