Remove a FIXME and unused variables in Meson

From 615acd91d353defd7fbe136fd115515452d6d00b Mon Sep 17 00:00:00 2001
From: Tristan Partin <tristan@neon.tech>
Date: Thu, 14 Mar 2024 00:02:11 -0500
Subject: [PATCH v1 1/2] Protect adding llvm flags if found version is not
 enough

-fwrapv: https://github.com/llvm/llvm-project/commit/51924e517bd2d25faea6ef873db3c59ec4d09bf8
-fno-strict-aliasing: https://github.com/llvm/llvm-project/commit/10169b94cfe6838f881339f1944891f6d8451174
---
 src/backend/jit/llvm/meson.build | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/backend/jit/llvm/meson.build b/src/backend/jit/llvm/meson.build
index 41c759f73c5..0e1de7bc98e 100644
--- a/src/backend/jit/llvm/meson.build
+++ b/src/backend/jit/llvm/meson.build
@@ -58,8 +58,13 @@ else
 endif
 
 
-# XXX: Need to determine proper version of the function cflags for clang
-bitcode_cflags = ['-fno-strict-aliasing', '-fwrapv']
+bitcode_cflags = []
+if llvm.version().version_compare('>=2.9.0')
+  bitcode_cflags += ['-fno-strict-aliasing']
+endif
+if llvm.version().version_compare('>=2.8.0')
+  bitcode_cflags += ['-fwrapv']
+endif
 if llvm.version().version_compare('=15.0')
   bitcode_cflags += ['-Xclang', '-no-opaque-pointers']
 endif
-- 
Tristan Partin
Neon (https://neon.tech)

From 4e5541352cd582c7c7320d02c075cf7a95c6bfda Mon Sep 17 00:00:00 2001
From: Tristan Partin <tristan@neon.tech>
Date: Thu, 14 Mar 2024 00:05:38 -0500
Subject: [PATCH v1 2/2] Remove some unused variables in Meson

They weren't being used, so don't assign to them.
---
 meson.build             | 5 -----
 src/backend/meson.build | 1 -
 2 files changed, 6 deletions(-)

diff --git a/meson.build b/meson.build
index 85788f9dd8f..b0a45a7d834 100644
--- a/meson.build
+++ b/meson.build
@@ -202,7 +202,6 @@ if host_system == 'cygwin'
   dlsuffix = '.dll'
   mod_link_args_fmt = ['@0@']
   mod_link_with_name = 'lib@0@.exe.a'
-  mod_link_with_dir = 'libdir'
 
 elif host_system == 'darwin'
   dlsuffix = '.dylib'
@@ -212,7 +211,6 @@ elif host_system == 'darwin'
   export_fmt = '-Wl,-exported_symbols_list,@0@'
 
   mod_link_args_fmt = ['-bundle_loader', '@0@']
-  mod_link_with_dir = 'bindir'
   mod_link_with_name = '@0@'
 
   sysroot_args = [files('src/tools/darwin_sysroot'), get_option('darwin_sysroot')]
@@ -269,7 +267,6 @@ elif host_system == 'windows'
     mod_link_with_name = 'lib@0@.exe.a'
   endif
   mod_link_args_fmt = ['@0@']
-  mod_link_with_dir = 'libdir'
 
   shmem_kind = 'win32'
   sema_kind = 'win32'
@@ -488,10 +485,8 @@ dir_pgxs = dir_lib_pkg / 'pgxs'
 dir_include = get_option('includedir')
 
 dir_include_pkg = dir_include
-dir_include_pkg_rel = ''
 if not (dir_prefix_contains_pg or dir_include_pkg.contains('pgsql') or dir_include_pkg.contains('postgres'))
   dir_include_pkg = dir_include_pkg / pkg
-  dir_include_pkg_rel = pkg
 endif
 
 dir_man = get_option('mandir')
diff --git a/src/backend/meson.build b/src/backend/meson.build
index 436c04af080..d2c10d1abd7 100644
--- a/src/backend/meson.build
+++ b/src/backend/meson.build
@@ -154,7 +154,6 @@ if mod_link_args_fmt.length() > 0
 
   name = mod_link_with_name.format('postgres')
   link_with_uninst = meson.current_build_dir() / name
-  link_with_inst = '${@0@}/@1@'.format(mod_link_with_dir, name)
 
   foreach el : mod_link_args_fmt
     pg_mod_link_args += el.format(link_with_uninst)
-- 
Tristan Partin
Neon (https://neon.tech)