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Support newlib C library configurations without tm_gmtoff field (#2600)

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Newlib C library (https://sourceware.org/newlib/) has a configuration
option to add tm_gmtoff field to the tm structure. Not all the
platforms supported by newlib enable this option, and spdlog doesn't
compile on such platforms due to missing tm_gmtoff field.

Fix this by checking for `__NEWLIB__` and `__TM_GMTOFF` and enabling
calculate_gmt_offset.
This commit is contained in:
Ivan Grokhotkov
2023-01-10 00:12:03 +01:00
committed by GitHub
parent 287a00d364
commit 85a009ad64
1 changed files with 1 additions and 1 deletions
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2
include/spdlog/details/os-inl.h
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@@ -286,7 +286,7 @@ SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm)
return offset; return offset;
#else #else
# if defined(sun) || defined(__sun) || defined(_AIX) || (!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE)) # if defined(sun) || defined(__sun) || defined(_AIX) || (defined(__NEWLIB__) && !defined(__TM_GMTOFF)) || (!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE))
// 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
struct helper struct helper
{ {