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7af974eeaa
avoid warnings with any modern C99 compiler due to implicit function
declaration for pthread_create, as shown by the following :
test/regress_dns.c:2226:2: warning: implicit declaration of function
'pthread_create' is invalid in C99 [-Wimplicit-function-declaration]
THREAD_START(thread[0], race_base_run, &rp);
^
test/regress_thread.h:35:2: note: expanded from macro 'THREAD_START'
pthread_create(&(threadvar), NULL, fn, arg)
^
test/regress_dns.c:2226:2: warning: this function declaration is not a prototype
[-Wstrict-prototypes]
test/regress_thread.h:35:2: note: expanded from macro 'THREAD_START'
pthread_create(&(threadvar), NULL, fn, arg)
^
$ clang --version
Apple LLVM version 9.1.0 (clang-902.0.39.2)
Target: x86_64-apple-darwin17.7.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
Closes: #686 (cherry-picked)