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Improve trace().

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Turn on trace() with the TRACE macro and remove the ## token paste
preprocessor operator which is unnecessary here and causes these errors:

ps/common.h:176:26: error: pasting "(" and ""ps_argv[thisarg] is %s\n""
does no t give a valid preprocessing token
.

Send trace output to STDERR.

Tracing can be enabled by adding TRACE to CPPFLAGS as follows:

./configure CPPFLAGS="-DTRACE"

Signed-off-by: Rafael Kitover <rkitover@gmail.com>
This commit is contained in:
Rafael Kitover 2021-10-15 04:40:03 +00:00 committed by Craig Small
parent 2ba7e39f2b
commit 20c328bdcc
1 changed files with 2 additions and 2 deletions
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4
src/ps/common.h
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@ -181,8 +181,8 @@ makEXT(noop)
// --- <pids> interface end |||||||||||||||||||||||||||||||||||||||||||||| // --- <pids> interface end ||||||||||||||||||||||||||||||||||||||||||||||
#if 0 #if TRACE
#define trace(...) printf(## __VA_ARGS__) #define trace(...) fprintf(stderr, __VA_ARGS__)
#else #else
#define trace(...) #define trace(...)
#endif #endif