From 48798ae07d08b43f69e0d6bbf7eb1861e16a2a83 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Fri, 31 Mar 2023 21:58:53 +0200
Subject: [PATCH] Use linker groups on gcc to fix geomserver build

---
 cmake/CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 2d4855b2bc..f2af0247ef 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -392,7 +392,11 @@ if(OCCT_STATIC)
     else()
         # OPENCASCADE_LIBRARIES repeated N times below in order to fix cyclic dependencies - use --start-group ... --end-group instead?
         # tfk: --start-group ... --end-group didn't work on the apple linker when last tested
-        set(OPENCASCADE_LIBRARIES ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
+	if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+		set(OPENCASCADE_LIBRARIES -Wl,--start-group ${OPENCASCADE_LIBRARIES} -Wl,--end-group)
+	else()
+	        set(OPENCASCADE_LIBRARIES ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${OPENCASCADE_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
+	endif()
     endif()
     
     if (NOT APPLE AND NOT WIN32)