lfortran: Fix build against LLVM 16

packages/lfortran/build.sh

@@ -3,7 +3,7 @@ TERMUX_PKG_DESCRIPTION="A modern open-source interactive Fortran compiler"
 TERMUX_PKG_LICENSE="BSD 3-Clause"
 TERMUX_PKG_MAINTAINER="@termux"
 TERMUX_PKG_VERSION=0.18.0
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL=git+https://github.com/lfortran/lfortran
 TERMUX_PKG_DEPENDS="clang, libandroid-complex-math, libc++, ncurses, zlib, zstd"
 TERMUX_PKG_BUILD_DEPENDS="libllvm-static"

packages/lfortran/llvm16.patch

@@ -0,0 +1,59 @@
+--- a/src/libasr/codegen/KaleidoscopeJIT.h
++++ b/src/libasr/codegen/KaleidoscopeJIT.h
+@@ -25,6 +25,7 @@
+ #include "llvm/IR/DataLayout.h"
+ #include "llvm/IR/LLVMContext.h"
+ #include <memory>
++#include <optional>
+ 
+ namespace llvm {
+ namespace orc {
+@@ -71,7 +72,7 @@
+     auto CPU = "generic";
+     auto Features = "";
+     TargetOptions opt;
+-    auto RM = Optional<Reloc::Model>();
++    auto RM = std::optional<Reloc::Model>();
+     TM = Target->createTargetMachine(TargetTriple, CPU, Features, opt, RM);
+   }
+ 
+--- a/src/libasr/codegen/asr_to_llvm.cpp
++++ b/src/libasr/codegen/asr_to_llvm.cpp
+@@ -276,7 +276,7 @@
+             // to our new block
+             builder->CreateBr(bb);
+         }
+-        fn->getBasicBlockList().push_back(bb);
++        fn->insert(fn->end(), bb);
+         builder->SetInsertPoint(bb);
+     }
+ 
+--- a/src/libasr/codegen/evaluator.cpp
++++ b/src/libasr/codegen/evaluator.cpp
+@@ -1,5 +1,6 @@
+ #include <iostream>
+ #include <fstream>
++#include <optional>
+ 
+ #include <llvm/IR/LLVMContext.h>
+ #include <llvm/ADT/STLExtras.h>
+@@ -178,7 +179,7 @@
+     std::string CPU = "generic";
+     std::string features = "";
+     llvm::TargetOptions opt;
+-    llvm::Optional<llvm::Reloc::Model> RM = llvm::Reloc::Model::PIC_;
++    std::optional<llvm::Reloc::Model> RM = llvm::Reloc::Model::PIC_;
+     TM = target->createTargetMachine(target_triple, CPU, features, opt, RM);
+ 
+     // For some reason the JIT requires a different TargetMachine
+--- a/src/libasr/codegen/llvm_utils.cpp
++++ b/src/libasr/codegen/llvm_utils.cpp
+@@ -189,7 +189,7 @@
+             // to our new block
+             builder->CreateBr(bb);
+         }
+-        fn->getBasicBlockList().push_back(bb);
++        fn->insert(fn->end(), bb);
+         builder->SetInsertPoint(bb);
+     }
+