• Update to 1.4.15
• Remove ABI versions in LIB_DEPENDS
• Convert to OptionsNG, add DTRACE option, disabled for now
• Reorder OPTIONS/CONFIGURE sections
• GNU_CONFIGURE s/YES/yes
• Unbreak CLANG build (Add --disable-coverage)
• Add USE_CSTD=c99 for CLANG -pedantic error
• Add --enable-64bit for ARCH=amd64
• Make test: target build first

PR: ports/171679
Submitted by: Kubilay Kocak <koobs.freebsd@gmail.com>