From badc97b42514e053e5fcabe2c88898e60daef673 Mon Sep 17 00:00:00 2001
From: Klemens Nanni <klemens@posteo.de>
Date: Wed, 5 Jan 2022 13:51:40 +0100
Subject: [PATCH] Recognise OpenBSD, generate debug info with clang

I have packaged range-v3 0.11.0 for OpenBSD 7.0 -CURRENT.

It builds with GCC 8.4.0, clang 11.0.1 and clang 13.0.0.
---
 cmake/ranges_env.cmake   | 5 +++++
 cmake/ranges_flags.cmake | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/cmake/ranges_env.cmake b/cmake/ranges_env.cmake
index f9e79d128..64b7edef4 100644
--- a/cmake/ranges_env.cmake
+++ b/cmake/ranges_env.cmake
@@ -46,6 +46,11 @@ elseif(CMAKE_SYSTEM_NAME MATCHES "Windows")
   if (RANGES_VERBOSE_BUILD)
     message(STATUS "[range-v3]: system is Windows.")
   endif()
+elseif(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
+  set (RANGES_ENV_OPENBSD TRUE)
+  if (RANGES_VERBOSE_BUILD)
+    message(STATUS "[range-v3]: system is OpenBSD.")
+  endif()
 else()
   message(WARNING "[range-v3 warning]: unknown system ${CMAKE_SYSTEM_NAME} !")
 endif()
diff --git a/cmake/ranges_flags.cmake b/cmake/ranges_flags.cmake
index 9b09ddcb8..c0125474a 100644
--- a/cmake/ranges_flags.cmake
+++ b/cmake/ranges_flags.cmake
@@ -192,7 +192,7 @@ if (RANGES_DEBUG_BUILD)
   if (RANGES_CXX_COMPILER_CLANG)
     if (RANGES_ENV_MACOSX)
       ranges_append_flag(RANGES_HAS_GLLDB -glldb)
-    elseif(RANGES_ENV_LINUX)
+    elseif(RANGES_ENV_LINUX OR RANGES_ENV_OPENBSD)
       ranges_append_flag(RANGES_HAS_GGDB -ggdb)
     endif()
   endif()