diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index c120ad545d..c2c851bb08 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -243,7 +243,7 @@ if (LINUX OR DARWIN)
   endif ()
 
   if(LINUX)
-    set(GCC_CXX_WARNINGS "${GCC_WARNINGS} -Wno-reorder -Wno-non-virtual-dtor -Wno-unused-variable -Wno-unused-but-set-variable -Wno-pragmas -Wno-deprecated")
+    set(GCC_CXX_WARNINGS "${GCC_WARNINGS} -Wno-reorder -Wno-non-virtual-dtor -Wno-unused-variable -Wno-pragmas -Wno-deprecated")
   endif()
 
   if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 13.0)
diff --git a/indra/newview/lldrawpoolwater.cpp b/indra/newview/lldrawpoolwater.cpp
index 92759d9d49..d8dc8ec549 100644
--- a/indra/newview/lldrawpoolwater.cpp
+++ b/indra/newview/lldrawpoolwater.cpp
@@ -166,8 +166,8 @@ void LLDrawPoolWater::renderPostDeferred(S32 pass)
     //bool                   has_normal_mips = gSavedSettings.getBOOL("RenderWaterMipNormal");
     bool                   has_normal_mips = mRenderWaterMipNormal;
     bool                   underwater      = LLViewerCamera::getInstance()->cameraUnderWater();
-    LLColor4               fog_color       = LLColor4(pwater->getWaterFogColor(), 0.f);
-    LLColor3               fog_color_linear = linearColor3(fog_color);
+    // LLColor4               fog_color       = LLColor4(pwater->getWaterFogColor(), 0.f); // <FS:Beq/> set but unused
+    // LLColor3               fog_color_linear = linearColor3(fog_color); // <FS:Beq/> set but unused
 
     if (sun_up)
     {
@@ -244,11 +244,12 @@ void LLDrawPoolWater::renderPostDeferred(S32 pass)
     F32      fog_density = pwater->getModifiedWaterFogDensity(underwater);
 
     shader->bindTexture(LLShaderMgr::WATER_SCREENTEX, &gPipeline.mWaterDis);
-
-    if (mShaderLevel == 1)
-    {
-        fog_color.mV[VALPHA] = (F32)(log(fog_density) / log(2));
-    }
+    // <FS:Beq> set but unused "fog_color"
+    // if (mShaderLevel == 1)
+    // {
+    //     fog_color.mV[VALPHA] = (F32)(log(fog_density) / log(2));
+    // }
+    // </FS:Beq>
 
     F32 water_height = environment.getWaterHeight();
     F32 camera_height = LLViewerCamera::getInstance()->getOrigin().mV[2];
diff --git a/indra/newview/llfloatergltfasseteditor.cpp b/indra/newview/llfloatergltfasseteditor.cpp
index a127f5d43e..229317a3c9 100644
--- a/indra/newview/llfloatergltfasseteditor.cpp
+++ b/indra/newview/llfloatergltfasseteditor.cpp
@@ -299,7 +299,7 @@ void LLFloaterGLTFAssetEditor::loadFromSelection()
         setTitle(node->mName);
     }
 
-    LLUIColor item_color = LLUIColorTable::instance().getColor("MenuItemEnabledColor", DEFAULT_WHITE);
+    // LLUIColor item_color = LLUIColorTable::instance().getColor("MenuItemEnabledColor", DEFAULT_WHITE); // <FS:Beq/> set but unused
     for (S32 i = 0; i < mAsset->mScenes.size(); i++)
     {
         LL::GLTF::Scene& scene = mAsset->mScenes[i];
diff --git a/indra/newview/llfloaterimagepreview.cpp b/indra/newview/llfloaterimagepreview.cpp
index c4d4eae860..92e79968a0 100644
--- a/indra/newview/llfloaterimagepreview.cpp
+++ b/indra/newview/llfloaterimagepreview.cpp
@@ -459,7 +459,7 @@ void LLFloaterImagePreview::onBtnOK()
 void LLFloaterImagePreview::draw()
 {
     LLFloater::draw();
-    LLRect r = getRect();
+    // LLRect r = getRect(); <FS:Beq/> set but unused
 
     if (mRawImagep.notNull())
     {
diff --git a/indra/newview/llsurfacepatch.cpp b/indra/newview/llsurfacepatch.cpp
index a87494062c..2bf13b9317 100644
--- a/indra/newview/llsurfacepatch.cpp
+++ b/indra/newview/llsurfacepatch.cpp
@@ -1030,7 +1030,7 @@ void LLSurfacePatch::updateGL()
     F32 grids_per_patch_edge = (F32)getSurface()->getGridsPerPatchEdge();
 
     LLViewerRegion *regionp = getSurface()->getRegion();
-    LLVector3d origin_region = getOriginGlobal() - getSurface()->getOriginGlobal();
+    // LLVector3d origin_region = getOriginGlobal() - getSurface()->getOriginGlobal(); // <FS:Beq/> set but not used
 
     LLVLComposition* comp = regionp->getComposition();
 
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index 919badd217..76b2b4e3a8 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -12063,7 +12063,7 @@ void LLVOAvatar::getAssociatedVolumes(std::vector<LLVOVolume*>& volumes)
     for (const auto& iter : mAttachmentPoints)
     {
         LLViewerJointAttachment* attachment = iter.second;
-        LLViewerJointAttachment::attachedobjs_vec_t::iterator attach_end = attachment->mAttachedObjects.end();
+        // LLViewerJointAttachment::attachedobjs_vec_t::iterator attach_end = attachment->mAttachedObjects.end(); // <FS:Beq/> set but not used
 
         for (LLViewerObject* attached_object : attachment->mAttachedObjects)
         {