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Iesue #692: use arc4random() if it's available (in libc on BSD systems, and libbsd on Linux).

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This commit is contained in:
Eric Haszlakiewicz
2021-01-13 01:57:25 +00:00
parent 69d650528d
commit 0f61f6921b
3 changed files with 28 additions and 2 deletions
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11
CMakeLists.txt
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@@ -170,6 +170,17 @@ check_symbol_exists(vasprintf "stdio.h" HAVE_VASPRINTF)
check_symbol_exists(vsnprintf "stdio.h" HAVE_VSNPRINTF)
check_symbol_exists(vprintf "stdio.h" HAVE_VPRINTF)
check_symbol_exists(arc4random "stdlib.h" HAVE_ARC4RANDOM)
if (NOT HAVE_ARC4RANDOM)
check_include_file(bsd/stdlib.h HAVE_BSD_STDLIB_H)
if (HAVE_BSD_STDLIB_H)
list(APPEND CMAKE_REQUIRED_LIBRARIES "-lbsd")
link_libraries(bsd)
unset(HAVE_ARC4RANDOM CACHE)
check_symbol_exists(arc4random "bsd/stdlib.h" HAVE_ARC4RANDOM)
endif()
endif()
if (HAVE_FCNTL_H)
check_symbol_exists(open "fcntl.h" HAVE_OPEN)
endif()