meson: llvm: Use llvm-config's --cxxflags when building llvmjit

anarazel · anarazel · commit 908e17151b48 · 2022-10-03T14:55:52.000-07:00
Otherwise we don't use LLVM's flags when building llvmjit_wrap.cpp and
llvmjit_inline.cpp. That can cause compile time failures if the C++ compiler
doesn't default to a new enough C++ standards version and link time failures
due to ABI influencing flags like -fno-rtti.
diff --git a/src/backend/jit/llvm/meson.build b/src/backend/jit/llvm/meson.build
@@ -24,6 +24,7 @@ llvmjit = shared_module('llvmjit',
   llvmjit_sources,
   kwargs: pg_mod_args + {
     'dependencies': pg_mod_args['dependencies'] + [llvm],
+    'cpp_args': pg_mod_args['cpp_args'] + llvm.get_variable(configtool: 'cxxflags').split(),
   }
 )
 

Original file line number	Diff line number	Diff line change
`@@ -24,6 +24,7 @@ llvmjit = shared_module('llvmjit',`
`24`	`24`	`llvmjit_sources,`
`25`	`25`	`kwargs: pg_mod_args + {`
`26`	`26`	`'dependencies': pg_mod_args['dependencies'] + [llvm],`
	`27`	`+ 'cpp_args': pg_mod_args['cpp_args'] + llvm.get_variable(configtool: 'cxxflags').split(),`
`27`	`28`	`}`
`28`	`29`	`)`
`29`	`30`