From ebdcdebc6d29f2a2bfa8404877e7af7e1dc13e9c Mon Sep 17 00:00:00 2001
From: Giles Atkinson <“gatk555@gmail.com”>
Date: Tue, 9 Jun 2026 11:15:28 +0100
Subject: [PATCH] Fix Bug #775 - "Missing LDFLAGS in vlnggen", and add an
 option (-stc c++14) that was needed in testing on Windows.

---
 src/xspice/verilog/vlnggen | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/xspice/verilog/vlnggen b/src/xspice/verilog/vlnggen
index 69cecb905..c6d165a50 100644
--- a/src/xspice/verilog/vlnggen
+++ b/src/xspice/verilog/vlnggen
@@ -40,6 +40,8 @@ if $oscompiled = 1 | $oscompiled = 2 | $oscompiled = 8 // Windows (MINGW, Cygwin
    set windows=1
    set dirsep1="\\"
    set dirsep2="/"
+   // Extra flags to fix undefined symbols.
+   setcs cflags="-CFLAGS -std=c++14 -CFLAGS -DVL_TIME_CONTEXT $cflags"
    if $oscompiled = 1 // MINGW: verilator is a Perl wrapper, needs MSYS2 shell
       set run_verilator="sh -c \"verilator"
       set run_verilator_close="\""
@@ -55,9 +57,9 @@ else
    set run_verilator_close=""
 end
 
-if $oscompiled = 7 // MacOS
+if $oscompiled = 7 // MacOS: use clang and suppress a weak symbol.
    set macos=1
-   setcs cflags="$cflags --compiler clang"
+   setcs cflags="-CFLAGS -DVL_TIME_CONTEXT $cflags --compiler clang"
 else
    set macos=0
 end