Merge pull request #7203 from graham33/feature/cpp20

Proposal: Use C++20

4 files changed, 6 insertions, 6 deletions

diff --git a/src/libstore/binary-cache-store.cc b/src/libstore/binary-cache-store.cc
index 05bf0501d..751cf8c30 100644
--- a/src/libstore/binary-cache-store.cc
+++ b/src/libstore/binary-cache-store.cc
@@ -370,7 +370,7 @@ void BinaryCacheStore::queryPathInfoUncached(const StorePath & storePath,
     auto callbackPtr = std::make_shared<decltype(callback)>(std::move(callback));
 
     getFile(narInfoFile,
-        {[=](std::future<std::optional<std::string>> fut) {
+        {[=,this](std::future<std::optional<std::string>> fut) {
             try {
                 auto data = fut.get();
 
diff --git a/src/libstore/build/worker.cc b/src/libstore/build/worker.cc
index b94fb8416..f775f8486 100644
--- a/src/libstore/build/worker.cc
+++ b/src/libstore/build/worker.cc
@@ -276,7 +276,7 @@ void Worker::run(const Goals & _topGoals)
         if (!children.empty() || !waitingForAWhile.empty())
             waitForInput();
         else {
-            if (awake.empty() && 0 == settings.maxBuildJobs)
+            if (awake.empty() && 0U == settings.maxBuildJobs)
             {
                 if (getMachines().empty())
                    throw Error("unable to start any build; either increase '--max-jobs' "
diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc
index 130c5b670..8e33a3dec 100644
--- a/src/libstore/globals.cc
+++ b/src/libstore/globals.cc
@@ -222,19 +222,19 @@ template<> void BaseSetting<SandboxMode>::convertToArg(Args & args, const std::s
         .longName = name,
         .description = "Enable sandboxing.",
         .category = category,
-        .handler = {[=]() { override(smEnabled); }}
+        .handler = {[this]() { override(smEnabled); }}
     });
     args.addFlag({
         .longName = "no-" + name,
         .description = "Disable sandboxing.",
         .category = category,
-        .handler = {[=]() { override(smDisabled); }}
+        .handler = {[this]() { override(smDisabled); }}
     });
     args.addFlag({
         .longName = "relaxed-" + name,
         .description = "Enable sandboxing, but allow builds to disable it.",
         .category = category,
-        .handler = {[=]() { override(smRelaxed); }}
+        .handler = {[this]() { override(smRelaxed); }}
     });
 }
 
diff --git a/src/libstore/nix-store.pc.in b/src/libstore/nix-store.pc.in
index 6d67b1e03..385169a13 100644
--- a/src/libstore/nix-store.pc.in
+++ b/src/libstore/nix-store.pc.in
@@ -6,4 +6,4 @@ Name: Nix
 Description: Nix Package Manager
 Version: @PACKAGE_VERSION@
 Libs: -L${libdir} -lnixstore -lnixutil
-Cflags: -I${includedir}/nix -std=c++17
+Cflags: -I${includedir}/nix -std=c++20