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boost: Fixes Boost.regex header-only (v5) include 

In v1.76.0 Boost.Regex became a header-only library.
With this update, there are now two different versions:
- v4 for C++03 (deprecated)
- v5 header-only

This commit fixes an issue which was preventing Boost.Regex
from being built for old ArmV5 targets

Signed-off-by: Carlos Miguel Ferreira <carlosmf.pt@gmail.com>
This commit is contained in:
Carlos Miguel Ferreira 2021-06-03 23:05:10 +01:00
parent fa761fcda0
commit 34a91f7be3
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GPG Key ID: 33A82DFF65092E55
1 changed files with 29 additions and 0 deletions
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29
libs/boost/patches/020-regex.patch Normal file
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@ -0,0 +1,29 @@
--- a/boost/regex/v5/mem_block_cache.hpp
+++ b/boost/regex/v5/mem_block_cache.hpp
@@ -85,10 +85,10 @@ struct mem_block_node
struct mem_block_cache
{
// this member has to be statically initialsed:
- mem_block_node* next;
- unsigned cached_blocks;
+ mem_block_node* next { nullptr };
+ unsigned cached_blocks { 0 };
#ifdef BOOST_HAS_THREADS
- boost::static_mutex mut;
+ std::mutex mut;
#endif
~mem_block_cache()
@@ -133,11 +133,7 @@ struct mem_block_cache
}
static mem_block_cache& instance()
{
-#ifdef BOOST_HAS_THREADS
- static mem_block_cache block_cache = { 0, 0, BOOST_STATIC_MUTEX_INIT, };
-#else
- static mem_block_cache block_cache = { 0, 0, };
-#endif
+ static mem_block_cache block_cache;
return block_cache;
}
};