expat 2.2.2 build fail on Snow Leopard
Richard L. Hamilton
rlhamil at smart.net
Sun Jul 16 03:36:20 UTC 2017
:info:build libtool: compile: /opt/local/bin/clang-mp-3.9 -I./lib -I. -pipe -Os -arch x86_64 -arch i386 -Wall -Wmissing-prototypes -Wstrict-prototypes -fexceptions -fno-strict-aliasing -I/opt/local/include -DHAVE_EXPAT_CONFIG_H -c lib/xmlparse.c -fno-common -DPIC -o lib/.libs/xmlparse.o
:info:build lib/xmlparse.c:56:3: error: You do not have support for any sources of high quality entropy enabled. For end user security, that is probably not what you want. Your options include: * Linux + glibc >=2.25 (getrandom): HAVE_GETRANDOM, * Linux + glibc <2.25 (syscall SYS_getrandom): HAVE_SYSCALL_GETRANDOM, * BSD / macOS (arc4random_buf): HAVE_ARC4RANDOM_BUF, * libbsd (arc4random_buf): HAVE_ARC4RANDOM_BUF + HAVE_LIBBSD, * Windows (RtlGenRandom): _WIN32. If insist on not using any of these, bypass this error by defining XML_POOR_ENTROPY; you have been warned. For CMake, one way to pass the define is: cmake -DCMAKE_C_FLAGS="-pipe -O2 -DHAVE_SYSCALL_GETRANDOM" . If you have reasons to patch this detection code away or need changes to the build system, please open a bug. Thank you!
:info:build # error \
:info:build 1 error generated.
:info:build make: *** [lib/xmlparse.lo] Error 1
Granted, Snow Leopard doesn't seem to have arc4random_buf() (I think it first appeared in Lion). What workaround should there be for this??
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