Fix Qt shutdown and Linux wallet build

contrib/build-linux-wallet.sh

@@ -142,6 +142,17 @@ remove_invalid_native_protobuf_cache() {
   rm -rf "$ROOT/depends/built/$HOST/native_protobuf"
 }
 
+reset_configure_state() {
+  rm -f config.cache config.log config.status libtool
+
+  # Stale generated makefiles and libtool scripts can trigger rechecks with
+  # old autotools/libtool macros after a failed or moved build.
+  find . \( -name Makefile -o -name config.status -o -name config.log -o -name libtool \) \
+    ! -path './depends/*' \
+    ! -path './.git/*' \
+    -delete
+}
+
 cd "$ROOT"
 
 require_cmd make
@@ -162,17 +173,17 @@ reset_qt_configure_state
 remove_invalid_native_protobuf_cache
 
 echo "Building native depends for $HOST..."
-make -C depends HOST="$HOST" NO_QT=0 -j"$JOBS"
+# The legacy depends system mutates depends/$HOST while configuring each
+# package. Package-level parallelism can race and remove headers/libs another
+# package is probing, so keep depends serial and use JOBS for the final wallet
+# compile below.
+make -C depends clean
+make -C depends HOST="$HOST" NO_QT=0 -j1
 require_path "$BASE_CONFIG"
 ensure_native_protoc
 
-if [[ ! -f configure || ! -f src/secp256k1/configure || ! -f src/secp256k1/Makefile.in ]]; then
+reset_configure_state
 ./autogen.sh
-fi
-
-if [[ build-aux/m4/bitcoin_qt.m4 -nt configure || build-aux/m4/bitcoin_qt.m4 -nt aclocal.m4 ]]; then
-  ./autogen.sh
-fi
 
 echo "Configuring Ubuntu Qt6 wallet build..."
 QT_SYSTEM_PKG_CONFIG_LIBDIR="$QT_SYSTEM_PKG_CONFIG_LIBDIR" CONFIG_SITE="$BASE_CONFIG" ./configure \

contrib/build-linux.sh

@@ -16,11 +16,12 @@ require_path() {
 }
 
 reset_configure_state() {
-  rm -f config.cache config.log config.status
+  rm -f config.cache config.log config.status libtool
 
-  # Stale generated makefiles can trigger config.status --recheck with old
-  # configure arguments after a failed build attempt.
-  find . -name Makefile -type f \
+  # Stale generated makefiles and libtool scripts can trigger rechecks with
+  # old configure arguments or old autotools/libtool macros after a failed
+  # build attempt.
+  find . \( -name Makefile -o -name config.status -o -name config.log -o -name libtool \) \
     ! -path './depends/*' \
     ! -path './.git/*' \
     -delete
@@ -31,7 +32,12 @@ cd "$ROOT"
 case "$MODE" in
   daemon)
     echo "Building native daemon depends for $HOST..."
-    make -C depends HOST="$HOST" NO_QT=1 -j"$JOBS"
+    # The legacy depends system mutates depends/$HOST while configuring each
+    # package, so package-level parallelism can race and remove headers/libs
+    # another package is probing. Keep depends serial; use JOBS for the final
+    # Agrarian compile below.
+    make -C depends clean
+    make -C depends HOST="$HOST" NO_QT=1 -j1
     require_path "$BASE_CONFIG"
 
     reset_configure_state

depends/Makefile

@@ -94,11 +94,16 @@ install-prefix: $(packages)
 	shopt -s nullglob; \
 	for p in $(packages); do \
 	  artifacts=( "$(BASE_CACHE)/$(HOST)/$$p/"*.tar.gz ); \
-	  if (( $${#artifacts[@]} != 1 )); then \
-	    echo "ERROR: expected exactly one built artifact for $$p under $(BASE_CACHE)/$(HOST)/$$p"; \
+	  if (( $${#artifacts[@]} == 0 )); then \
+	    echo "ERROR: expected a built artifact for $$p under $(BASE_CACHE)/$(HOST)/$$p"; \
 	    exit 1; \
 	  fi; \
-	  f="$${artifacts[0]}"; \
+	  if (( $${#artifacts[@]} > 1 )); then \
+	    echo "WARN: multiple built artifacts for $$p; using newest by name"; \
+	  fi; \
+	  IFS=$$'\n' sorted=( $$(printf '%s\n' "$${artifacts[@]}" | sort) ); \
+	  unset IFS; \
+	  f="$${sorted[$$(($${#sorted[@]} - 1))]}"; \
 	  echo "  - $$p: $$f"; \
 	  tar --no-same-owner -xzf "$$f" -C "$(host_prefix)"; \
 	done
@@ -110,11 +115,16 @@ ifneq ($(native_packages),)
 	shopt -s nullglob; \
 	for p in $(native_packages); do \
 	  artifacts=( "$(BASE_CACHE)/$(HOST)/$$p/"*.tar.gz ); \
-	  if (( $${#artifacts[@]} != 1 )); then \
-	    echo "ERROR: expected exactly one built artifact for $$p under $(BASE_CACHE)/$(HOST)/$$p"; \
+	  if (( $${#artifacts[@]} == 0 )); then \
+	    echo "ERROR: expected a built artifact for $$p under $(BASE_CACHE)/$(HOST)/$$p"; \
 	    exit 1; \
 	  fi; \
-	  f="$${artifacts[0]}"; \
+	  if (( $${#artifacts[@]} > 1 )); then \
+	    echo "WARN: multiple built artifacts for $$p; using newest by name"; \
+	  fi; \
+	  IFS=$$'\n' sorted=( $$(printf '%s\n' "$${artifacts[@]}" | sort) ); \
+	  unset IFS; \
+	  f="$${sorted[$$(($${#sorted[@]} - 1))]}"; \
 	  echo "  - $$p: $$f"; \
 	  tar --no-same-owner -xzf "$$f" -C "$(build_prefix)"; \
 	done
@@ -166,7 +176,7 @@ endif
 	  echo "PATH=\"$(build_prefix)/bin:\$$PATH\""; \
 	  echo "PKG_CONFIG='`which pkg-config` --static'"; \
 	  echo "PKG_CONFIG_LIBDIR='$(host_prefix)/lib/pkgconfig:$(host_prefix)/share/pkgconfig'"; \
-	  echo "PKG_CONFIG_PATH=\"$$PKG_CONFIG_LIBDIR\""; \
+	  echo "PKG_CONFIG_PATH=\"\$$PKG_CONFIG_LIBDIR\""; \
 	  echo "export PKG_CONFIG_LIBDIR"; \
 	  echo "export PKG_CONFIG_PATH"; \
 	  echo "export PKG_CONFIG"; \

depends/packages/qt.mk

@@ -28,6 +28,7 @@ $(package)_config_opts += -no-glib
 $(package)_config_opts += -no-icu
 $(package)_config_opts += -no-opengl
 $(package)_config_opts += -no-pch
+$(package)_config_opts += -no-feature-brotli
 $(package)_config_opts += -no-feature-sql
 $(package)_config_opts += -no-feature-vulkan
 $(package)_config_opts += -nomake examples

src/miner.cpp

@@ -10,6 +10,7 @@
 
 #include "amount.h"
 #include "hash.h"
+#include "init.h"
 #include "main.h"
 #include "masternode-sync.h"
 #include "net.h"
@@ -634,7 +635,7 @@ void BitcoinMiner(CWallet* pwallet, bool fProofOfStake)
     CReserveKey reservekey(pwallet);
     unsigned int nExtraNonce = 0;
     bool fLastLoopOrphan = false;
-    while (fGenerateBitcoins || fProofOfStake) {
+    while ((fGenerateBitcoins || fProofOfStake) && !ShutdownRequested()) {
         if (fProofOfStake) {
             //control the amount of times the client will check for mintable coins
             if ((GetTime() - nMintableLastCheck > 5 * 60)) // 5 minute check time
@@ -648,7 +649,7 @@ void BitcoinMiner(CWallet* pwallet, bool fProofOfStake)
                 continue;
             }
 
-            while (vNodes.empty() || pwallet->IsLocked() || !fMintableCoins || (pwallet->GetBalance() > 0 && nReserveBalance >= pwallet->GetBalance()) || !masternodeSync.IsSynced()) {
+            while (!ShutdownRequested() && (vNodes.empty() || pwallet->IsLocked() || !fMintableCoins || (pwallet->GetBalance() > 0 && nReserveBalance >= pwallet->GetBalance()) || !masternodeSync.IsSynced())) {
                 nLastCoinStakeSearchInterval = 0;
                 // Do a separate 1 minute check here to ensure fMintableCoins is updated
                 if (!fMintableCoins) {
@@ -662,6 +663,8 @@ void BitcoinMiner(CWallet* pwallet, bool fProofOfStake)
                 if (!fGenerateBitcoins && !fProofOfStake)
                     continue;
             }
+            if (ShutdownRequested())
+                break;
 
             if (mapHashedBlocks.count(chainActive.Tip()->nHeight) && !fLastLoopOrphan) //search our map of hashed blocks, see if bestblock has been hashed yet
             {
@@ -834,6 +837,7 @@ void GenerateBitcoins(bool fGenerate, CWallet* pwallet, int nThreads)
 
     if (minerThreads != nullptr) {
         minerThreads->interrupt_all();
+        minerThreads->join_all();
         delete minerThreads;
         minerThreads = nullptr;
     }

src/qt/agrarian.cpp

@@ -278,8 +278,9 @@ void BitcoinCore::restart(QStringList args)
             qDebug() << __func__ << ": Running Restart in thread";
             Interrupt();
             PrepareShutdown();
-            qDebug() << __func__ << ": Shutdown finished";
             emit shutdownResult(1);
+            QMetaObject::invokeMethod(QApplication::instance(), "quit", Qt::QueuedConnection);
+            QApplication::exit(0);
             CExplicitNetCleanup::callCleanup();
             QProcess::startDetached(QApplication::applicationFilePath(), args);
             qDebug() << __func__ << ": Restart initiated...";
@@ -298,8 +299,9 @@ void BitcoinCore::shutdown()
         qDebug() << __func__ << ": Running Shutdown in thread";
         Interrupt();
         Shutdown();
-        qDebug() << __func__ << ": Shutdown finished";
         emit shutdownResult(1);
+        QMetaObject::invokeMethod(QApplication::instance(), "quit", Qt::QueuedConnection);
+        QApplication::exit(0);
     } catch (std::exception& e) {
         handleRunawayException(&e);
     } catch (...) {

src/wallet/walletdb.cpp

@@ -8,6 +8,7 @@
 #include "wallet/walletdb.h"
 
 #include "base58.h"
+#include "init.h"
 #include "protocol.h"
 #include "serialize.h"
 #include "sync.h"
@@ -916,7 +917,7 @@ void ThreadFlushWalletDB(const string& strFile)
     unsigned int nLastSeen = nWalletDBUpdated;
     unsigned int nLastFlushed = nWalletDBUpdated;
     int64_t nLastWalletUpdate = GetTime();
-    while (true) {
+    while (!ShutdownRequested()) {
         MilliSleep(500);
 
         if (nLastSeen != nWalletDBUpdated) {