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openlane build project: c++20, gcc10 needed in some pkgsrc packages
It will be good to see a fully open source ASIC development platform like
openlane2 working natively on NetBSD. It already does on FreeBSD and
Linux.
Over last few days I have created many wip packages, mainly google
or-tools and the dependencies it needs. A few more components are pending
before building the top package openlane2.
c++20 is a declared[1] dependency of or-tools.
At least gcc-10 is needed and for compatibility reason, one or both these
requirements (gcc-10 or c++20) pass on to several components in wip as
well as pkgsrc.
I am attaching a patch of the things I had to patch in pkgsrc. I have been
conservative in making these changes i.e. changes are made only when the
build fails otherwise for or-tools or some of its dependencies.
This attachment excludes the ipopt patch, since it needed an upgrade. I
have shared that patch in a separate mail already.
Of course, it will not be easy to absorb the chain of impact on main
pkgsrc. But, then having openlane2 is a really good goal to have. So,
would like to seek views on what best can be done.
--
Mayuresh
[1] https://github.com/google/or-tools/blob/stable/cmake/README.md#requirement
diff --git a/devel/abseil/Makefile b/devel/abseil/Makefile
index f946c1eb279..98af90fcb9c 100644
--- a/devel/abseil/Makefile
+++ b/devel/abseil/Makefile
@@ -11,14 +11,11 @@ HOMEPAGE= https://github.com/abseil/abseil-cpp
COMMENT= C++ Common Libraries
LICENSE= apache-2.0
-USE_CXX_FEATURES= c++14
USE_LANGUAGES= c++
-FORCE_CXX_STD= c++14
+FORCE_CXX_STD= c++20
CMAKE_CONFIGURE_ARGS+= -DBUILD_SHARED_LIBS=ON
-# include/absl/base/policy_checks.h:57:2: error:
-# #error "This package requires GCC 7 or higher."
-GCC_REQD+= 7
+GCC_REQD+= 10
.include "../../mk/bsd.prefs.mk"
diff --git a/devel/gmp/Makefile b/devel/gmp/Makefile
index 4a38d3aa27c..47eb5c6bd92 100644
--- a/devel/gmp/Makefile
+++ b/devel/gmp/Makefile
@@ -25,6 +25,8 @@ PKGCONFIG_OVERRIDE+= gmpxx.pc.in
PLIST_VARS+= cxx
+GCC_REQD+= 10
+
.include "../../mk/bsd.prefs.mk"
.if ${USE_CROSS_COMPILE:U:tl} == yes
diff --git a/devel/protobuf/Makefile b/devel/protobuf/Makefile
index 0b308b641ee..b47164e8650 100644
--- a/devel/protobuf/Makefile
+++ b/devel/protobuf/Makefile
@@ -19,11 +19,9 @@ HOMEPAGE= https://github.com/protocolbuffers/protobuf
COMMENT= Google protocol buffers
LICENSE= modified-bsd
-USE_CXX_FEATURES= c++14
USE_LANGUAGES= c c++
-# Fails with C++14 default language
-FORCE_CXX_STD= c++14
+FORCE_CXX_STD= c++20
CMAKE_CONFIGURE_ARGS+= -Dprotobuf_ABSL_PROVIDER=package
# FIXME: Currently libupd makes net/grpc build fail.
diff --git a/devel/re2/Makefile b/devel/re2/Makefile
index 8bf8b00f4a3..8bb31b5a9f0 100644
--- a/devel/re2/Makefile
+++ b/devel/re2/Makefile
@@ -14,7 +14,7 @@ USE_LANGUAGES= c c++
CMAKE_CONFIGURE_ARGS+= -DBUILD_SHARED_LIBS=ON
-USE_CXX_FEATURES= c++11
+FORCE_CXX_STD= c++20
PKGCONFIG_OVERRIDE= re2.pc.in
INSTALLATION_DIRS+= lib/pkgconfig
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