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Merged
ryanofsky merged 1 commit into from
Aug 3, 2026
Merged

ci: Compile with minimum supported g++ in olddeps #330

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2 changes: 1 addition & 1 deletion ci/configs/olddeps.bash
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
CI_DESC="CI job using old Cap'n Proto and cmake versions"
CI_DIR=build-olddeps
export CXXFLAGS="-Werror -Wall -Wextra -Wpedantic -Wno-unused-parameter -Wno-error=array-bounds"
NIX_ARGS=(--argstr capnprotoVersion "0.9.2" --argstr cmakeVersion "3.12.4")
NIX_ARGS=(--argstr capnprotoVersion "0.9.2" --argstr cmakeVersion "3.12.4" --argstr gccVersion "11")
BUILD_ARGS=(-k)
7 changes: 6 additions & 1 deletion shell.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
, capnprotoVersion ? null
, capnprotoSanitizers ? null # Optional sanitizers to build cap'n proto with
, cmakeVersion ? null
, gccVersion ? null
, libcxxSanitizers ? null # Optional LLVM_USE_SANITIZER value to use for libc++, see https://llvm.org/docs/CMake.html
}:

Expand Down Expand Up @@ -59,6 +60,7 @@ let
cmakeHashes = {
"3.12.4" = "sha256-UlVYS/0EPrcXViz/iULUcvHA5GecSUHYS6raqbKOMZQ=";
};
gcc = if gccVersion == null then null else builtins.getAttr ("gcc" + gccVersion) pkgs;
cmakeBuild = if cmakeVersion == null then pkgs.cmake else (pkgs.cmake.overrideAttrs (old: {
version = cmakeVersion;
src = pkgs.fetchurl {
Expand All @@ -75,11 +77,14 @@ in crossPkgs.mkShell {
cmakeBuild
include-what-you-use
ninja
] ++ lib.optionals (!minimal) [
] ++ lib.optional (gcc != null) gcc ++ lib.optionals (!minimal) [
clang
clang-tools
];

CC = if gcc == null then null else "${gcc}/bin/gcc";
CXX = if gcc == null then null else "${gcc}/bin/g++";

# Tell IWYU where its libc++ mapping lives
IWYU_MAPPING_FILE = if enableLibcxx then "${llvm.libcxx.dev}/include/c++/v1/libcxx.imp" else null;
}
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