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44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
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From 8012ca9c8d16f99679c171b36ad02655549ab7ff Mon Sep 17 00:00:00 2001
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From: Alex Chernyakhovsky <alex@achernya.com>
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Date: Sun, 30 Jul 2023 16:19:46 -0400
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Subject: [PATCH] Bump C++ version to C++17
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Protobuf versions since 3.6.0 have long had a C++11 dependency; even
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more recent versions have picked up an Abseil dependency bumping that
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to C++14. Since it is now 2023, defaulting to C++17 is reasonable, so
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remove the conditional C++ standards version check that mosh
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previously had and replace it with an unconditional C++17 check.
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This means that all future commits can use C++17 features. According
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to https://en.cppreference.com/w/cpp/compiler_support/17 this means
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that minimum effective compiler versions for mosh become:
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gcc 7 (May 2017)
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clang 5 (September 2017)
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This, in turn, implies that future versions of mosh will no longer be
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available for RHEL/CentOS 7 (June 2014).
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Closes: #1267
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---
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configure.ac | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index ee70c7b86..7f7dc3bc2 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -22,9 +22,9 @@ AS_IF([test x"$PROTOC" = x],
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# automake 1.12 seems to require this, but automake 1.11 doesn't recognize it
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m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
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-# Protobuf 3.6+ requires C++11.
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-AS_IF([pkg-config --atleast-version 3.6.0 protobuf],
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- [AX_CXX_COMPILE_STDCXX([11])])
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+# Protobuf transitively requires at least C++14, get ahead of the
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+# curve and require at least C++17.
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+AX_CXX_COMPILE_STDCXX([17])
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WARNING_CXXFLAGS=""
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PICKY_CXXFLAGS=""
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