From 0302d1e5fa4fcdd1763b7d1bb3212943b1ae911d Mon Sep 17 00:00:00 2001 From: Martin Date: Fri, 23 Aug 2019 20:45:07 +0200 Subject: [PATCH] supppress unused variable warning for gcc (#372) gcc complains with: ``` 'stacktraces_enabler' defined but not used [-Wunused-variable] static int stacktraces_enabler = []() { ``` --- absl/debugging/internal/stacktrace_generic-inl.inc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/absl/debugging/internal/stacktrace_generic-inl.inc b/absl/debugging/internal/stacktrace_generic-inl.inc index 2e876fef..81a49ef2 100644 --- a/absl/debugging/internal/stacktrace_generic-inl.inc +++ b/absl/debugging/internal/stacktrace_generic-inl.inc @@ -16,6 +16,7 @@ #include #include "absl/debugging/stacktrace.h" +#include "absl/base/attributes.h" // Sometimes, we can try to get a stack trace from within a stack // trace, because we don't block signals inside this code (which would be too @@ -35,7 +36,7 @@ static __thread int recursive = 0; static std::atomic disable_stacktraces(true); // Disabled until healthy. // Waiting until static initializers run seems to be late enough. // This file is included into stacktrace.cc so this will only run once. -static int stacktraces_enabler = []() { +ABSL_ATTRIBUTE_UNUSED static int stacktraces_enabler = []() { void* unused_stack[1]; // Force the first backtrace to happen early to get the one-time shared lib // loading (allocation) out of the way. After the first call it is much safer