From f874e14cd3c84cd412bd3fb42b3ee1706ca6a267 Mon Sep 17 00:00:00 2001
From: Sjors Provoost <sjors@sprovoost.nl>
Date: Thu, 14 Mar 2019 11:30:37 +0100
Subject: [build]: check std::system for -[alert|block|wallet]notify

Platforms such as iOs do not support launching a process
through system().
---
 src/init.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/init.cpp')

diff --git a/src/init.cpp b/src/init.cpp
index f9723196b..e6e85b66a 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -378,10 +378,14 @@ void SetupServerArgs()
         "-allowselfsignedrootcertificates", "-choosedatadir", "-lang=<lang>", "-min", "-resetguisettings", "-rootcertificates=<file>", "-splash", "-uiplatform"};
 
     gArgs.AddArg("-version", "Print version and exit", false, OptionsCategory::OPTIONS);
+#if defined(HAVE_SYSTEM)
     gArgs.AddArg("-alertnotify=<cmd>", "Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)", false, OptionsCategory::OPTIONS);
+#endif
     gArgs.AddArg("-assumevalid=<hex>", strprintf("If this block is in the chain assume that it and its ancestors are valid and potentially skip their script verification (0 to verify all, default: %s, testnet: %s)", defaultChainParams->GetConsensus().defaultAssumeValid.GetHex(), testnetChainParams->GetConsensus().defaultAssumeValid.GetHex()), false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-blocksdir=<dir>", "Specify directory to hold blocks subdirectory for *.dat files (default: <datadir>)", false, OptionsCategory::OPTIONS);
+#if defined(HAVE_SYSTEM)
     gArgs.AddArg("-blocknotify=<cmd>", "Execute command when the best block changes (%s in cmd is replaced by block hash)", false, OptionsCategory::OPTIONS);
+#endif
     gArgs.AddArg("-blockreconstructionextratxn=<n>", strprintf("Extra transactions to keep in memory for compact block reconstructions (default: %u)", DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN), false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-blocksonly", strprintf("Whether to reject transactions from network peers. Transactions from the wallet or RPC are not affected. (default: %u)", DEFAULT_BLOCKSONLY), false, OptionsCategory::OPTIONS);
     gArgs.AddArg("-conf=<file>", strprintf("Specify configuration file. Relative paths will be prefixed by datadir location. (default: %s)", BITCOIN_CONF_FILENAME), false, OptionsCategory::OPTIONS);
@@ -582,6 +586,7 @@ std::string LicenseInfo()
            "\n";
 }
 
+#if defined(HAVE_SYSTEM)
 static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex)
 {
     if (initialSync || !pBlockIndex)
@@ -594,6 +599,7 @@ static void BlockNotifyCallback(bool initialSync, const CBlockIndex *pBlockIndex
         t.detach(); // thread runs free
     }
 }
+#endif
 
 static bool fHaveGenesis = false;
 static Mutex g_genesis_wait_mutex;
@@ -1726,8 +1732,10 @@ bool AppInitMain(InitInterfaces& interfaces)
         fHaveGenesis = true;
     }
 
+#if defined(HAVE_SYSTEM)
     if (gArgs.IsArgSet("-blocknotify"))
         uiInterface.NotifyBlockTip_connect(BlockNotifyCallback);
+#endif
 
     std::vector<fs::path> vImportFiles;
     for (const std::string& strFile : gArgs.GetArgs("-loadblock")) {
-- 
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