diff --git a/bin/tools/query-versions b/bin/tools/query-versions
index 3445cf6420bacab38b5ccb13fe475e34928f77f3..183d004f0d54b4764450e7e79757e644573db1d6 100755
--- a/bin/tools/query-versions
+++ b/bin/tools/query-versions
@@ -6,7 +6,7 @@
# \\ / A nd | www.openfoam.com
# \\/ M anipulation |
#------------------------------------------------------------------------------
-# Copyright (C) 2020 OpenCFD Ltd.
+# Copyright (C) 2020-2023 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
@@ -116,11 +116,10 @@ export WM_PROJECT_DIR="$projectDir"
#
# parse this type of content
# ----
-# default_clang_version=llvm-3.7.1
-# default_gcc_version=gcc-4.8.5
+# default_clang_version=llvm-[digits].[digits].[digits]
+# default_gcc_version=gcc-[digits].[digits].[digits]
#
-# Gcc48*) gcc_version=gcc-4.8.5 ;;
-# Gcc49*) gcc_version=gcc-4.9.4 ;;
+# Gcc121*) gcc_version=gcc-[digits].[digits].[digits] ;;
# ----
queryCompiler()
diff --git a/doc/Requirements.md b/doc/Requirements.md
index d4c8e9e1aa522262646a32ea588efdb18f3ea2ef..abd3e7f84865e1fbb58d402a6c1286f02b7c5c09 100644
--- a/doc/Requirements.md
+++ b/doc/Requirements.md
@@ -1,10 +1,10 @@
## OpenFOAM® System Requirements
-OpenFOAM requires a functioning C++11 compiler and GNU `make` build toolchain.
+OpenFOAM requires a functioning C++14 compiler and GNU `make` build toolchain.
### Minimum recommended versions
-- gcc : 4.8.5 (absolute minimum, not really recommended)
+- gcc : 7.5.0 (minimum, not necessarily recommended)
- cmake: 3.8 (required for ParaView and CGAL build)
- boost: 1.48 (required for CGAL build and some functionality)
- fftw: 3.3.7 (recommended - required for FFT-related functionality)
@@ -217,4 +217,4 @@ at any later stage _without_ recompiling OpenFOAM itself.
[wiki-config]: https://develop.openfoam.com/Development/openfoam/-/wikis/configuring
---
-Copyright 2019-2022 OpenCFD Ltd
+Copyright 2019-2023 OpenCFD Ltd
diff --git a/etc/config.csh/compiler b/etc/config.csh/compiler
index 73df3611b1ef4c48b816609777d33d9323eedada..262c79212522bb5a3a36d9349fea543272023de6 100644
--- a/etc/config.csh/compiler
+++ b/etc/config.csh/compiler
@@ -6,7 +6,7 @@
# \\/ M anipulation |
#------------------------------------------------------------------------------
# Copyright (C) 2016 OpenFOAM Foundation
-# Copyright (C) 2016-2022 OpenCFD Ltd.
+# Copyright (C) 2016-2023 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
@@ -58,8 +58,8 @@ switch ("$WM_COMPILER_TYPE")
case ThirdParty:
# Default/minimum versions (compiler, GMP, MPFR, MPC) - override as needed
- set default_clang_version=llvm-3.7.1
- set default_gcc_version=gcc-4.8.5
+ set default_clang_version=llvm-5.0.2
+ set default_gcc_version=gcc-7.5.0
set default_gmp_version=gmp-system
set default_mpfr_version=mpfr-system
@@ -127,6 +127,7 @@ case ThirdParty:
case Gcc75*:
set gcc_version=gcc-7.5.0
breaksw
+ # Older : no assurance that they still work for OpenFOAM
case Gcc74*:
set gcc_version=gcc-7.4.0
breaksw
@@ -159,24 +160,24 @@ case ThirdParty:
case Gcc55*:
set gcc_version=gcc-5.5.0
breaksw
- case Gcc54*:
- set gcc_version=gcc-5.4.0
- breaksw
- case Gcc53*:
- set gcc_version=gcc-5.3.0
- breaksw
- case Gcc52*:
- set gcc_version=gcc-5.2.0
- breaksw
- case Gcc51*:
- set gcc_version=gcc-5.1.0
- breaksw
- case Gcc49*:
- set gcc_version=gcc-4.9.4
- breaksw
- case Gcc48*:
- set gcc_version=gcc-4.8.5
- breaksw
+ #ancient# case Gcc54*:
+ #ancient# set gcc_version=gcc-5.4.0
+ #ancient# breaksw
+ #ancient# case Gcc53*:
+ #ancient# set gcc_version=gcc-5.3.0
+ #ancient# breaksw
+ #ancient# case Gcc52*:
+ #ancient# set gcc_version=gcc-5.2.0
+ #ancient# breaksw
+ #ancient# case Gcc51*:
+ #ancient# set gcc_version=gcc-5.1.0
+ #ancient# breaksw
+ #ancient# case Gcc49*:
+ #ancient# set gcc_version=gcc-4.9.4
+ #ancient# breaksw
+ #ancient# case Gcc48*:
+ #ancient# set gcc_version=gcc-4.8.5
+ #ancient# breaksw
case Clang:
set clang_version="$default_clang_version"
@@ -217,18 +218,18 @@ case ThirdParty:
case Clang50*:
set clang_version=llvm-5.0.2
breaksw
- case Clang40*:
- set clang_version=llvm-4.0.1
- breaksw
- case Clang39*:
- set clang_version=llvm-3.9.1
- breaksw
- case Clang38*:
- set clang_version=llvm-3.8.1
- breaksw
- case Clang37*:
- set clang_version=llvm-3.7.1
- breaksw
+ #ancient# case Clang40*:
+ #ancient# set clang_version=llvm-4.0.1
+ #ancient# breaksw
+ #ancient# case Clang39*:
+ #ancient# set clang_version=llvm-3.9.1
+ #ancient# breaksw
+ #ancient# case Clang38*:
+ #ancient# set clang_version=llvm-3.8.1
+ #ancient# breaksw
+ #ancient# case Clang37*:
+ #ancient# set clang_version=llvm-3.7.1
+ #ancient# breaksw
endsw
diff --git a/etc/config.sh/compiler b/etc/config.sh/compiler
index 4fa14f93e4f10feb75e44c6caf4b814c105189a7..94c03678d1966172f37a71a7f5d19f7df6c77139 100644
--- a/etc/config.sh/compiler
+++ b/etc/config.sh/compiler
@@ -6,7 +6,7 @@
# \\/ M anipulation |
#------------------------------------------------------------------------------
# Copyright (C) 2011-2016 OpenFOAM Foundation
-# Copyright (C) 2016-2022 OpenCFD Ltd.
+# Copyright (C) 2016-2023 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
@@ -58,8 +58,8 @@ case "$WM_COMPILER_TYPE" in
ThirdParty)
# Default/minimum versions (compiler, GMP, MPFR, MPC) - override as needed
- default_clang_version=llvm-3.7.1
- default_gcc_version=gcc-4.8.5
+ default_clang_version=llvm-5.0.2
+ default_gcc_version=gcc-7.5.0
default_gmp_version=gmp-system
default_mpfr_version=mpfr-system
@@ -92,6 +92,7 @@ ThirdParty)
Gcc82*) gcc_version=gcc-8.2.0 ;;
Gcc81*) gcc_version=gcc-8.1.0 ;;
Gcc75*) gcc_version=gcc-7.5.0 ;;
+ # Older : no assurance that they still work for OpenFOAM
Gcc74*) gcc_version=gcc-7.4.0 ;;
Gcc73*) gcc_version=gcc-7.3.0 ;;
Gcc72*) gcc_version=gcc-7.2.0 ;;
@@ -103,12 +104,12 @@ ThirdParty)
Gcc62*) gcc_version=gcc-6.2.0 ;;
Gcc61*) gcc_version=gcc-6.1.0 ;;
Gcc55*) gcc_version=gcc-5.5.0 ;;
- Gcc54*) gcc_version=gcc-5.4.0 ;;
- Gcc53*) gcc_version=gcc-5.3.0 ;;
- Gcc52*) gcc_version=gcc-5.2.0 ;;
- Gcc51*) gcc_version=gcc-5.1.0 ;;
- Gcc49*) gcc_version=gcc-4.9.4 ;;
- Gcc48*) gcc_version=gcc-4.8.5 ;;
+ #ancient# Gcc54*) gcc_version=gcc-5.4.0 ;;
+ #ancient# Gcc53*) gcc_version=gcc-5.3.0 ;;
+ #ancient# Gcc52*) gcc_version=gcc-5.2.0 ;;
+ #ancient# Gcc51*) gcc_version=gcc-5.1.0 ;;
+ #ancient# Gcc49*) gcc_version=gcc-4.9.4 ;;
+ #ancient# Gcc48*) gcc_version=gcc-4.8.5 ;;
Clang) clang_version="$default_clang_version" ;;
Clang140*) clang_version=llvm-14.0.5 ;;
@@ -123,10 +124,10 @@ ThirdParty)
Clang70*) clang_version=llvm-7.0.1 ;;
Clang60*) clang_version=llvm-6.0.1 ;;
Clang50*) clang_version=llvm-5.0.2 ;;
- Clang40*) clang_version=llvm-4.0.1 ;;
- Clang39*) clang_version=llvm-3.9.1 ;;
- Clang38*) clang_version=llvm-3.8.1 ;;
- Clang37*) clang_version=llvm-3.7.1 ;;
+ #ancient# Clang40*) clang_version=llvm-4.0.1 ;;
+ #ancient# Clang39*) clang_version=llvm-3.9.1 ;;
+ #ancient# Clang38*) clang_version=llvm-3.8.1 ;;
+ #ancient# Clang37*) clang_version=llvm-3.7.1 ;;
esac
diff --git a/wmake/rules/General/Gcc/c++ b/wmake/rules/General/Gcc/c++
index 1ccc6dd61abe7c15d95cb48f0ffdff8922e85d92..d87479014fc87447907c9160ae7bedaa09fbe1f7 100644
--- a/wmake/rules/General/Gcc/c++
+++ b/wmake/rules/General/Gcc/c++
@@ -1,12 +1,12 @@
#------------------------------------------------------------------------------
-# C++14 support with gcc-5 and later, but several systems (as of 2021)
-# are still using gcc-4.8.4 (centos7, suse SLES12, ...)
+# gcc compiler
#
-# NOTE if your system gcc is new enough can simply use c++14 too.
+# On older systems: may need to upgrade the compiler, use a ThirdParty compiler
+# or clang to have sufficient C++ language.
#------------------------------------------------------------------------------
SUFFIXES += .C .cc .cpp .cxx
-CC := g++$(COMPILER_VERSION) -std=c++11
+CC := g++$(COMPILER_VERSION) -std=c++14
c++ARCH :=
c++DBUG :=