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Remove redundant checks for MSG_* from configure.ac

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It is redundant to check for the presence of MSG_NOSIGNAL macro in
configure.ac, define HAVE_MSG_NOSIGNAL and then check whether the later
is defined in the source code. Instead we can check directly whether
MSG_NOSIGNAL is defined. Same for MSG_DONTWAIT.

In addition to that, the checks we had in configure.ac produce a
compiler warning about unused variable and thus could fail if
-Werror is present and erroneously proclaim that the macros are
not available.
This commit is contained in:
Vasil Dimov 2018-03-11 20:19:26 +01:00
parent 71129e0265
commit 8ae413235d
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GPG key ID: 170E923FF6C1A420
3 changed files with 4 additions and 19 deletions
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5
src/net.cpp
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@ -42,12 +42,13 @@
// We add a random period time (0 to 1 seconds) to feeler connections to prevent synchronization.
#define FEELER_SLEEP_WINDOW 1
#if !defined(HAVE_MSG_NOSIGNAL)
// MSG_NOSIGNAL is not available on some platforms, if it doesn't exist define it as 0
#if !defined(MSG_NOSIGNAL)
#define MSG_NOSIGNAL 0
#endif
// MSG_DONTWAIT is not available on some platforms, if it doesn't exist define it as 0
#if !defined(HAVE_MSG_DONTWAIT)
#if !defined(MSG_DONTWAIT)
#define MSG_DONTWAIT 0
#endif