termux-packages/packages/ldc/ldc-x64-sprintf.patch

diff --git a/dmd/dmangle.d b/dmd/dmangle.d
index 8e2fc5b6f..7de4a02de 100644
--- a/dmd/dmangle.d
+++ b/dmd/dmangle.d
@@ -926,7 +926,10 @@ public:
 
         char[36] buffer = void;
         // 'A' format yields [-]0xh.hhhhp+-d
-        const n = CTFloat.sprint(buffer.ptr, 'A', value);
+        // sprintf/printf with hex formatting is broken for certain long
+        // doubles on Android/x64, so use decimal format instead.
+        char fmt = global.params.isAndroidX86_64 ? 'g' : 'A';
+        const n = CTFloat.sprint(buffer.ptr, fmt, value);
         assert(n < buffer.length);
         foreach (const c; buffer[2 .. n])
         {
diff --git a/dmd/globals.d b/dmd/globals.d
index 8589b6cf2..5dae07256 100644
--- a/dmd/globals.d
+++ b/dmd/globals.d
@@ -139,6 +139,7 @@ struct Param
     bool is64bit = (size_t.sizeof == 8);  // generate 64 bit code; true by default for 64 bit dmd
     bool isLP64;            // generate code for LP64
     bool isLinux;           // generate code for linux
+    bool isAndroidX86_64;   // generate code for Android x86_64
     bool isOSX;             // generate code for Mac OSX
     bool isWindows;         // generate code for Windows
     bool isFreeBSD;         // generate code for FreeBSD
diff --git a/dmd/globals.h b/dmd/globals.h
index 098116f4d..57429400c 100644
--- a/dmd/globals.h
+++ b/dmd/globals.h
@@ -119,6 +119,7 @@ struct Param
     bool is64bit;       // generate 64 bit code
     bool isLP64;        // generate code for LP64
     bool isLinux;       // generate code for linux
+    bool isAndroidX86_64;  // generate code for Android x86_64
     bool isOSX;         // generate code for Mac OSX
     bool isWindows;     // generate code for Windows
     bool isFreeBSD;     // generate code for FreeBSD
diff --git a/driver/main.cpp b/driver/main.cpp
index c8c7ec2c5..18b581759 100644
--- a/driver/main.cpp
+++ b/driver/main.cpp
@@ -1000,6 +1000,9 @@ int cppmain() {
     llvm::Triple *triple = new llvm::Triple(gTargetMachine->getTargetTriple());
     global.params.targetTriple = triple;
     global.params.isLinux = triple->isOSLinux();
+    global.params.isAndroidX86_64 =
+        triple->getEnvironment() == llvm::Triple::Android &&
+        triple->getArch() == llvm::Triple::x86_64;
     global.params.isOSX = triple->isOSDarwin();
     global.params.isWindows = triple->isOSWindows();
     global.params.isFreeBSD = triple->isOSFreeBSD();