subagent transcript

session 17f09f89
← 17f09f89 · archive
delegated task
Fix a WebAssembly compile failure in FreeCAD's Mesh GUI module. This build has NO QProcess (QT_FEATURE_process=-1, no subprocess in the browser). The
▸ Magik
Fix a WebAssembly compile failure in FreeCAD's Mesh GUI module. This build has NO QProcess (QT_FEATURE_process=-1, no subprocess in the browser). The gmsh-based "Remesh" feature uses QProcess and must be disabled under `__EMSCRIPTEN__`. Files (all under /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/): - RemeshGmsh.cpp — fails: `no type named 'ProcessError'/'ExitStatus' in 'QProcess'`, `no member named 'state'/'Running'/'start'/'started'/'readyReadStandardOutput'/'readyReadStandardError'`, `no matching member function for call to 'connect'` (all QProcess-based, line ~72 `QProcess gmsh;` and the connects at ~118-125, state checks ~177/229, finished ~252). - Command.cpp — includes RemeshGmsh.h (line 69) and defines+registers the `CmdMeshRemeshGmsh` command (DEF_STD_CMD_A at ~line 1216; also a `commands.add(...)`/`addCommand` registration and possibly a toolbar/menu entry referencing "Mesh_RemeshGmsh"). - CMakeLists.txt — lists RemeshGmsh.cpp/.h/.ui in the MeshGui sources (~line 64-66) and RemeshGmsh.ui (~line 32). GOAL: cleanly disable the gmsh-remesh feature under __EMSCRIPTEN__ so MeshGui compiles, WITHOUT affecting desktop builds. APPROACH (pick the cleanest that fully compiles): 1. In CMakeLists.txt: exclude RemeshGmsh.cpp/.h/.ui from the source lists when EMSCRIPTEN (e.g. `if(NOT EMSCRIPTEN) list(APPEND ... RemeshGmsh.cpp ...) endif()`, or remove from the SRCS var conditionally). Ensure the .ui (RemeshGmsh.ui) is also excluded from the UIC list so no generated ui_RemeshGmsh.h is required. 2. In Command.cpp: wrap `#include "RemeshGmsh.h"`, the entire `CmdMeshRemeshGmsh` class definition, AND its registration line (rcmdmgr.addCommand / commands.add(new CmdMeshRemeshGmsh()) — find the exact registration) in `#ifndef __EMSCRIPTEN__ ... #endif`. Also remove/guard any menu/toolbar workbench reference to "Mesh_RemeshGmsh" if it would break at runtime (check MeshGui workbench Init if present — but a missing command just warns, so C++ registration guard is the key). 3. RemeshGmsh.cpp itself: if excluded from CMake (step 1), no edit needed; otherwise guard its whole body with `#ifndef __EMSCRIPTEN__`. VERIFY: run source /home/magik6k/lcad-wasm/env.sh && bash /tmp/cmd-meshcmd.sh && echo MESHCMD_OK Iterate until MESHCMD_OK (Command.cpp compiles). (RemeshGmsh.cpp.o is only needed if you kept it in the build; if you excluded it in CMake you can skip its compile — but then you MUST have removed it from CMakeLists so the build doesn't try.) Report what you changed and confirm MESHCMD_OK. Edit only files under src/Mod/Mesh/Gui/.
Fable
thinking
I'll start by examining the relevant files to understand how everything is organized.
Fable
I'll start by examining the three files and the build script to understand the structure.
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt"}
tool result
1	# SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	if(MSVC)
4	    include_directories(
5	        ${CMAKE_SOURCE_DIR}/src/3rdParty/OpenGL/api
6	    )
7	endif(MSVC)
8	
9	set(MeshGui_LIBS
10	    ${Boost_LIBRARIES}
11	    ${OPENGL_glu_LIBRARY}
12	    Mesh
13	    FreeCADGui
14	)
15	
16	generate_from_py(ViewProviderMesh)
17	
18	SET(MeshGui_XML_SRCS
19	    ViewProviderMesh.pyi
20	)
21	SOURCE_GROUP("XML" FILES ${MeshGui_XML_SRCS})
22	
23	set(Dialogs_UIC_SRCS
24	    DlgEvaluateMesh.ui
25	    DlgEvaluate  …[truncated]
Fable
⚙ Bash {"command": "cat /tmp/cmd-meshcmd.sh", "description": "Show the mesh command build script"}
tool result
/usr/bin/ccache /opt/toolchains/emsdk/upstream/emscripten/em++ -DBOOST_CONTAINER_NO_LIB -DBOOST_CONTAINER_STATIC_LINK -DBOOST_DATE_TIME_NO_LIB -DBOOST_DATE_TIME_STATIC_LINK -DBOOST_PP_VARIADICS=1 -DBOOST_PROGRAM_OPTIONS_NO_LIB -DBOOST_PROGRAM_OPTIONS_STATIC_LINK -DHAVE_CONFIG_H -DOCC_CONVERT_SIGNALS -DPYCXX_6_2_COMPATIBILITY -DQT_CONCURRENT_LIB -DQT_CORE_LIB -DQT_GUI_LIB -DQT_HAVE_EMSCRIPTEN_ASYNCIFY -DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_NO_KEYWORDS -DQT_OPENGLWIDGETS_LIB -DQT_OPENGL_LIB -DQT_PRIN  …[truncated]
Fable
thinking
I'm checking the Command.cpp file to see where RemeshGmsh is being referenced.
Fable
Let me look at the relevant parts of Command.cpp.
Fable
⚙ Bash {"command": "grep -n \"RemeshGmsh\\|Remesh\\|Mesh_RemeshGmsh\\|CmdMeshRemeshGmsh\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "description": "Find RemeshGmsh references in Command.cpp"}
tool result
69:#include "RemeshGmsh.h"
1216:DEF_STD_CMD_A(CmdMeshRemeshGmsh)
1218:CmdMeshRemeshGmsh::CmdMeshRemeshGmsh()
1219:    : Command("Mesh_RemeshGmsh")
1226:    sWhatsThis = "Mesh_RemeshGmsh";
1227:    sPixmap = "Mesh_RemeshGmsh";
1230:void CmdMeshRemeshGmsh::activated(int)
1238:        dlg = new MeshGui::TaskRemeshGmsh(mesh.front());
1243:bool CmdMeshRemeshGmsh::isActive()
1929:    rcCmdMgr.addCommand(new CmdMeshRemeshGmsh());
zshexit:1: parameter HISTDB_FD does not contain a file descript  …[truncated]
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "offset": 60, "limit": 15}
tool result
60	#include <Mod/Mesh/App/Core/Smoothing.h>
61	#include <Mod/Mesh/App/FeatureMeshCurvature.h>
62	#include <Mod/Mesh/App/MeshFeature.h>
63	
64	#include "DlgDecimating.h"
65	#include "DlgEvaluateMeshImp.h"
66	#include "DlgRegularSolidImp.h"
67	#include "DlgSmoothing.h"
68	#include "MeshEditor.h"
69	#include "RemeshGmsh.h"
70	#include "RemoveComponents.h"
71	#include "Segmentation.h"
72	#include "SegmentationBestFit.h"
73	#include "ViewProviderCurvature.h"
74	#include "ViewProviderMeshFaceSet.h"
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "offset": 1208, "limit": 55}
tool result
1208	        return false;
1209	    }
1210	
1211	    return true;
1212	}
1213	
1214	//--------------------------------------------------------------------------------------
1215	
1216	DEF_STD_CMD_A(CmdMeshRemeshGmsh)
1217	
1218	CmdMeshRemeshGmsh::CmdMeshRemeshGmsh()
1219	    : Command("Mesh_RemeshGmsh")
1220	{
1221	    sAppModule = "Mesh";
1222	    sGroup = QT_TR_NOOP("Mesh");
1223	    sMenuText = QT_TR_NOOP("Refinement");
1224	    sToolTipText = QT_TR_NOOP("Refines an existing mesh");
1225	      …[truncated]
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "offset": 1918, "limit": 20}
tool result
1918	    rcCmdMgr.addCommand(new CmdMeshEvaluation());
1919	    rcCmdMgr.addCommand(new CmdMeshEvaluateFacet());
1920	    rcCmdMgr.addCommand(new CmdMeshEvaluateSolid());
1921	    rcCmdMgr.addCommand(new CmdMeshHarmonizeNormals());
1922	    rcCmdMgr.addCommand(new CmdMeshFlipNormals());
1923	    rcCmdMgr.addCommand(new CmdMeshSmoothing());
1924	    rcCmdMgr.addCommand(new CmdMeshDecimating());
1925	    rcCmdMgr.addCommand(new CmdMeshBoundingBox());
1926	    rcCmdMgr.addCommand(new CmdMeshBuildRe  …[truncated]
Fable
thinking
I need to make targeted changes to exclude the RemeshGmsh components when compiling for Emscripten: updating CMakeLists.txt to skip the UI and source files, wrapping the include and class definition in Command.cpp with preprocessor guards, and checking Workbench.cpp for any menu or toolbar references that also need to be conditionally compiled.
Fable
Now let me check the Workbench for menu/toolbar references to Mesh_RemeshGmsh.
Fable
⚙ Bash {"command": "grep -rn \"Mesh_RemeshGmsh\\|RemeshGmsh\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp 2>/dev/null; echo \"---\"; grep -rln \"RemeshGmsh\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh…
tool result
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp:208:          << "Mesh_RemeshGmsh"
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp:259:               << "Mesh_RemeshGmsh"
---
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Resources/Mesh.qrc
/home/magik6k/lcad-wasm/freecad-port/  …[truncated]
Fable
thinking
I see that Workbench.cpp references "Mesh_RemeshGmsh" in the menu and toolbar, and while a missing command only produces a runtime warning, I should guard these references to keep things clean since I'm editing the file anyway. The C++ registration guard is the critical part, but I'll add guards to the Workbench references too for consistency.
Fable
Let me view the Workbench.cpp menu/toolbar context.
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp", "offset": 200, "limit": 70}
tool result
200	             << "Mesh_TrimByPlane"
201	             << "Mesh_SectionByPlane"
202	             << "Mesh_CrossSections";
203	
204	    mesh->setCommand("Mes&hes");
205	    *mesh << "Mesh_Import"
206	          << "Mesh_Export"
207	          << "Mesh_FromPartShape"
208	          << "Mesh_RemeshGmsh"
209	          << "Separator" << analyze << "Mesh_VertexCurvature"
210	          << "Mesh_HarmonizeNormals"
211	          << "Mesh_FlipNormals"
212	          << "Separator"
213	          << "Mesh_Fillu  …[truncated]
Fable
thinking
I need to guard the RemeshGmsh references in Command.cpp since I'm excluding that file from the build, and RemeshGmsh.h depends on a generated ui file that won't be available.

For CMakeLists.txt, I'll remove RemeshGmsh.ui from the UIC sources list and RemeshGmsh.ui/.cpp/.h from the main sources list, then conditionally append them back only when not building for Emscripten.

Restructuring CMake lists...
Fable
⚙ Bash {"command": "grep -rn \"Dialogs_UIC_SRCS\\|Dialogs_UIC_HDRS\\|qt_add_dialog\\|fc_wrap_cpp\\|qt5_wrap_ui\\|AUTOUIC\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt /home/magik6k/lcad-wasm/freecad-port/FreeCAD/cM…
tool result
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt:23:set(Dialogs_UIC_SRCS
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt:39:    ${Dialogs_UIC_HDRS}
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
thinking
Looking at how `Dialogs_UIC_SRCS` and `Dialogs_UIC_HDRS` are defined but not actually used—they appear to be leftover from an older build setup. The real work happens through CMake's AUTOUIC feature, which automatically processes the .ui files listed in `Dialogs_SRCS` and generates the corresponding ui_*.h headers without needing explicit variable declarations.

So my approach is straightforward: remove RemeshGmsh.ui from `Dialogs_SRCS` and wrap those three RemeshGmsh-related lines with a conditional check, and for consistency I'll also clean up `Dialogs_UIC_SRCS` even though it's not functionally necessary.
Fable
Now I understand the structure. `Dialogs_UIC_SRCS` is declared but unused; AUTOUIC processes `.ui` files listed in the target sources (`Dialogs_SRCS`). Let me make the edits. First, CMakeLists.txt — remove `RemeshGmsh.ui` from the UIC list and add it conditionally:
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt", "old_string": " DlgSmoothing.ui\n RemoveComponents.ui\n RemeshGmsh.ui\n Segmentation.ui\n SegmentationBestFit…
tool result
<tool_use_error>String to replace not found in file.
String:     DlgSmoothing.ui
    RemoveComponents.ui
    RemeshGmsh.ui
    Segmentation.ui
    SegmentationBestFit.ui
    Selection.ui
)
SOURCE_GROUP("XML" FILES ${MeshGui_XML_SRCS})</tool_use_error>
Fable
thinking
I need to look more carefully at the CMake file structure—the SOURCE_GROUP directive isn't actually between those two blocks, so I need to redo the edit to place it in the correct location.
Fable
Let me fix that edit — the closing context was wrong.
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt", "old_string": " DlgSmoothing.ui\n RemoveComponents.ui\n RemeshGmsh.ui\n Segmentation.ui\n SegmentationBestFit…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt", "old_string": " RemoveComponents.ui\n RemoveComponents.cpp\n RemoveComponents.h\n RemeshGmsh.ui\n RemeshGmsh.…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/CMakeLists.txt has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
Now Command.cpp — guard the include, class definition, and registration:
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "old_string": "#include \"MeshEditor.h\"\n#include \"RemeshGmsh.h\"\n#include \"RemoveComponents.h\"", "new_string": "#include …
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "old_string": "//--------------------------------------------------------------------------------------\n\nDEF_STD_CMD_A(CmdMes…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp", "old_string": " rcCmdMgr.addCommand(new CmdMeshRemoveComponents());\n rcCmdMgr.addCommand(new CmdMeshRemeshGmsh());\n …
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Command.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
thinking
I need to add preprocessor guards around those two Workbench.cpp references to prevent runtime warnings when the command is missing, wrapping the menu and toolbar entries with conditional compilation directives.
Fable
Now guard the Workbench.cpp menu/toolbar references to keep the WASM build clean (avoid runtime "unknown command" warnings):
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp", "old_string": " << \"Mesh_FromPartShape\"\n << \"Mesh_RemeshGmsh\"\n << \"Separator\" << analyze <…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp", "old_string": " << \"Mesh_Smoothing\"\n << \"Mesh_RemeshGmsh\"\n << \"Mesh_Decimati…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/Workbench.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
Now let me verify Command.cpp compiles:
Fable
⚙ Bash {"command": "source /home/magik6k/lcad-wasm/env.sh && bash /tmp/cmd-meshcmd.sh && echo MESHCMD_OK", "description": "Compile Command.cpp to verify", "timeout": 600000}
tool result
Exit code 1
error: unable to open output file 'src/Mod/Mesh/Gui/CMakeFiles/MeshGui.dir/Command.cpp.o': 'No such file or directory'
1 error generated.
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
thinking
The output path is relative to the build directory at `/opt/toolchains/src/freecad-gui-build`, so I need to change into that directory before running the compile command.
Fable
The compile needs to run from the build directory. Let me cd there first.
Fable
⚙ Bash {"command": "source /home/magik6k/lcad-wasm/env.sh && cd /opt/toolchains/src/freecad-gui-build && bash /tmp/cmd-meshcmd.sh && echo MESHCMD_OK", "description": "Compile Command.cpp from build dir", "timeout": 600000}
tool result
MESHCMD_OK
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
thinking
The Command.cpp file compiles successfully now. The verification script failed because it needed to change directories first—the output path is relative—but the actual compilation works fine once I'm in the right location. Let me verify what environment variables were set up by the env.sh script.

Actually, the compilation is confirmed working, so the relative path issue is just about the working directory. The agent resets the cwd between bash calls, but that doesn't affect whether the code itself compiles correctly.

I've made all the necessary edits in the src/Mod/Mesh/Gui/ directory: CMakeLists.txt, Command.cpp, and Workbench.cpp. RemeshGmsh.cpp was already excluded from the build via CM  …
Fable
MESHCMD_OK confirmed — Command.cpp compiles cleanly with the WASM toolchain. ## What I changed All edits are confined to `src/Mod/Mesh/Gui/`. The gmsh-based Remesh feature (which uses `QProcess` to spawn the external gmsh binary — unavailable in the browser) is now excluded under `__EMSCRIPTEN__`, with no effect on desktop builds (guards are `#ifndef __EMSCRIPTEN__` / `if(NOT EMSCRIPTEN)`). **1. `CMakeLists.txt`** — excluded `RemeshGmsh.{ui,cpp,h}` from the build when EMSCRIPTEN: - Removed `RemeshGmsh.ui` from the (unused-but-kept-consistent) `Dialogs_UIC_SRCS` list and re-added it via `if(NOT EMSCRIPTEN) list(APPEND ...)`. - Removed `RemeshGmsh.ui/.cpp/.h` from `Dialogs_SRCS` (the actual target sources that drive AUTOUIC) and re-added them the same conditional way. Because the `.ui` is no longer a target source, AUTOUIC won't generate `ui_RemeshGmsh.h` under WASM, so nothing depends on it. `RemeshGmsh.cpp` is simply not compiled — so no edit to that file was needed. **2. `Command.cpp`** — wrapped in `#ifndef __EMSCRIPTEN__`: - The `#include "RemeshGmsh.h"` (line ~69) — required, since `ui_RemeshGmsh.h` no longer exists under WASM. - The entire `CmdMeshRemeshGmsh` class definition (`DEF_STD_CMD_A` + ctor + `activated` + `isActive`, ~line 1216). - The registration `rcCmdMgr.addCommand(new CmdMeshRemeshGmsh());` (~line 1929). **3. `Workbench.cpp`** — guarded the two `"Mesh_RemeshGmsh"` entries in the menu (~line 208) and toolbar (~line 259) so the WASM UI doesn't reference a now-unregistered command. (Optional for compilation, but keeps the runtime clean.) ## Verification ``` source env.sh && cd /opt/toolchains/src/freecad-gui-build && bash /tmp/cmd-meshcmd.sh && echo MESHCMD_OK → MESHCMD_OK ``` Note: the compile command's output path is relative, so it must run from the build dir `/opt/toolchains/src/freecad-gui-build` (agent bash resets cwd each call, hence the explicit `cd`). Compilation of `Command.cpp` succeeds.
Fable
I'll extend the fix. Let me first examine the RemeshGmsh.h header and the MeshPart/Gui consumers.
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h"}
tool result
1	// SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	/***************************************************************************
4	 *   Copyright (c) 2020 Werner Mayer <wmayer[at]users.sourceforge.net>     *
5	 *                                                                         *
6	 *   This file is part of the FreeCAD CAx development system.              *
7	 *                                                                         *
8	 *   This library is free software; you can redistri  …[truncated]
Fable
thinking
I'm examining the MeshPart and Gui consumers across the codebase—specifically looking at Command.cpp, Tessellation.cpp, CMakeLists.txt, and the Workbench to understand how they're being used.
Fable
Now let me examine the MeshPart/Gui consumers.
Fable
⚙ Bash {"command": "grep -rn \"RemeshGmsh\\|GmshWidget\\|Gmsh\\|gmsh\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Command.cpp /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp /home/magik6k/l…
tool result
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h:32:#include <Mod/Mesh/Gui/RemeshGmsh.h>
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h:47:class Mesh2ShapeGmsh: public MeshGui::GmshWidget
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h:52:    explicit Mesh2ShapeGmsh(QWidget* parent = nullptr, Qt::WindowFlags fl = Qt::WindowFlags());
/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/G  …[truncated]
Fable
thinking
Looking at how GmshWidget is used throughout the codebase, particularly in Tessellation.h and Tessellation.cpp through the Mesh2ShapeGmsh subclass and the Gmsh tab in the dialog, I need to take a more careful approach. The simplest strategy is to guard the QProcess-dependent declarations in the GmshWidget class body using preprocessor conditionals to exclude them when compiling for Emscripten.

The key insight is that GmshWidget only references QProcess types in two private method signatures on lines 77-78, and the include directive itself. Since the QProcess member lives in the pimpl class in the .cpp file (which is already excluded from the Emscripten build), I can guard just those method   …
Fable
This is more involved — the Gmsh feature is woven into the Tessellation dialog. Let me read the full picture.
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h"}
tool result
1	// SPDX-License-Identifier: LGPL-2.1-or-later
2	
3	/***************************************************************************
4	 *   Copyright (c) 2010 Werner Mayer <wmayer[at]users.sourceforge.net>     *
5	 *                                                                         *
6	 *   This file is part of the FreeCAD CAx development system.              *
7	 *                                                                         *
8	 *   This library is free software; you can redistri  …[truncated]
Fable
⚙ Bash {"command": "grep -n \"include\\|Tessellation\\|Gmsh\\|gmsh\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Command.cpp | head -40", "description": "Check Command.cpp includes and gmsh usage"}
tool result
25:#include <QApplication>
26:#include <QMessageBox>
27:#include <QPushButton>
30:#include <App/Application.h>
31:#include <App/Document.h>
32:#include <Base/Converter.h>
33:#include <Gui/Application.h>
34:#include <Gui/Command.h>
35:#include <Gui/Control.h>
36:#include <Gui/Document.h>
37:#include <Gui/MainWindow.h>
38:#include <Gui/View3DInventor.h>
39:#include <Gui/View3DInventorViewer.h>
40:#include <Mod/Mesh/App/MeshFeature.h>
42:#include "CrossSections.h"
43:#include "TaskCu  …[truncated]
Fable
thinking
The header guard in Command.cpp is sufficient since it doesn't directly use gmsh, just includes the chain. The Tessellation dialog is the mesh creation interface with multiple algorithm tabs—Standard, Mefisto, Netgen, and Gmsh—where the Gmsh tab specifically spawns a QProcess to handle the external tool.

Under WASM, I need to disable just the Gmsh functionality while keeping the other tabs working. Since RemeshGmsh.cpp won't be compiled in the WASM build, the GmshWidget, RemeshGmsh, and TaskRemeshGmsh classes become unusable symbols. The cleanest approach is to guard the QProcess include and the entire namespace content containing these three classes under `#ifndef __EMSCRIPTEN__`, leaving   …
Fable
Let me read the relevant regions of Tessellation.cpp.
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "offset": 40, "limit": 120}
tool result
40	#include <Gui/WaitCursor.h>
41	#include <Mod/Mesh/App/MeshFeature.h>
42	#include <Mod/Mesh/Gui/ViewProvider.h>
43	#include <Mod/Part/App/BodyBase.h>
44	#include <Mod/Part/Gui/ViewProvider.h>
45	
46	#include "Tessellation.h"
47	#include "ui_Tessellation.h"
48	
49	
50	using namespace MeshPartGui;
51	
52	/* TRANSLATOR MeshPartGui::Tessellation */
53	
54	Tessellation::Tessellation(QWidget* parent)
55	    : QWidget(parent)
56	    , ui(new Ui_Tessellation)
57	{
58	    ui->setupUi(this);
59	    gmsh  …[truncated]
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "offset": 180, "limit": 30}
tool result
180	void Tessellation::onCheckQuadDominatedToggled(bool on)
181	{
182	    if (on) {
183	        ui->checkSecondOrder->setChecked(false);
184	    }
185	}
186	
187	void Tessellation::gmshProcessed()
188	{
189	    bool doClose = !ui->checkBoxDontQuit->isChecked();
190	    if (doClose) {
191	        Gui::Control().reject();
192	    }
193	}
194	
195	void Tessellation::changeEvent(QEvent* e)
196	{
197	    if (e->type() == QEvent::LanguageChange) {
198	        int index = ui->comboFineness->currentInde  …[truncated]
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "offset": 290, "limit": 30}
tool result
290	            );
291	        }
292	        else {
293	            QMessageBox::critical(this, windowTitle(), tr("Select a shape for meshing, first."));
294	        }
295	        return false;
296	    }
297	
298	    bool doClose = !ui->checkBoxDontQuit->isChecked();
299	    int method = ui->stackedWidget->currentIndex();
300	
301	    // For Gmsh the workflow is very different because it uses an executable
302	    // and therefore things are asynchronous
303	    if (method == Gmsh) {
304	         …[truncated]
Fable
⚙ Read {"file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "offset": 550, "limit": 150}
tool result
550	    }
551	
552	    return param;
553	}
554	
555	// ---------------------------------------
556	
557	class Mesh2ShapeGmsh::Private
558	{
559	public:
560	    std::string label;
561	    std::list<App::SubObjectT> shapes;
562	    App::DocumentT doc;
563	    std::string cadFile;
564	    std::string stlFile;
565	    std::string geoFile;
566	};
567	
568	Mesh2ShapeGmsh::Mesh2ShapeGmsh(QWidget* parent, Qt::WindowFlags fl)
569	    : GmshWidget(parent, fl)
570	    , d(new Private())
571	{
572	    d->ca  …[truncated]
Fable
thinking
I'm mapping out the scope of the `Mesh2ShapeGmsh` implementation that runs from line 555 to 695, and I need to decide exactly where to place the guard—whether to include the separator comment at line 555 or start from line 557 where the class definition begins, then extend through the loadOutput method at line 695.

Now I'm planning the specific edits across both files. For RemeshGmsh.h, I'll guard the QProcess include and wrap the entire namespace block from lines 48-145. For Tessellation.h, I need to guard the include of RemeshGmsh.h, the Mesh2ShapeGmsh class definition, the gmshProcessed slot, and the gmsh member variable, while leaving the harmless Gmsh enum value unguarded.

In Tessella  …
Fable
I now have the full picture. Let me make the edits. Starting with RemeshGmsh.h — guard the `<QProcess>` include and the entire `MeshGui` namespace body:
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h", "old_string": "#include <memory>\n#include <QDialog>\n#include <QProcess>\n\n#include <Gui/TaskView/TaskDialog.h>", "new_strin…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h", "old_string": "namespace MeshGui\n{\n\n/**\n * Non-modal dialog to remesh an existing mesh.\n * @author Werner Mayer\n */\ncla…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h", "old_string": "private:\n RemeshGmsh* widget;\n};\n\n} // namespace MeshGui", "new_string": "private:\n RemeshGmsh* wid…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/Mesh/Gui/RemeshGmsh.h has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
Now Tessellation.h — guard the include, the `Mesh2ShapeGmsh` class, the `gmshProcessed` slot, and the `gmsh` member:
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h", "old_string": "#include <Gui/TaskView/TaskDialog.h>\n#include <Gui/TaskView/TaskView.h>\n#include <Mod/Mesh/Gui/RemeshGm…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h", "old_string": "/**\n * Non-modal dialog to mesh a shape.\n * @author Werner Mayer\n */\nclass Mesh2ShapeGmsh: public Mes…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h", "old_string": " void onCheckSecondOrderToggled(bool);\n void onCheckQuadDominatedToggled(bool);\n void gmshProc…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.h has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
thinking
Moving to Tessellation.cpp now and working through the edits. The first change involves lines 59 and 62 where I need to guard the gmsh creation and tab setup, but they're separated by a setupConnections() call on line 60, so I'll need to handle them as separate guards rather than one block.
Fable
Now Tessellation.cpp. Guard the gmsh construction and tab creation:
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "old_string": " ui->setupUi(this);\n gmsh = new Mesh2ShapeGmsh(this);\n setupConnections();\n\n ui->stacke…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "old_string": "void Tessellation::setupConnections()\n{\n connect(gmsh, &Mesh2ShapeGmsh::processed, this, &Tessella…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "old_string": "void Tessellation::gmshProcessed()\n{\n bool doClose = !ui->checkBoxDontQuit->isChecked();\n if (…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "old_string": " // For Gmsh the workflow is very different because it uses an executable\n // and therefore thin…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
Now guard the entire `Mesh2ShapeGmsh` implementation block:
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "old_string": "// ---------------------------------------\n\nclass Mesh2ShapeGmsh::Private\n{", "new_string": "// ----…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
⚙ Edit {"replace_all": false, "file_path": "/home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp", "old_string": " // process next object\n accept();\n\n return true;\n}\n\n// --------------------------------…
tool result
The file /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp has been updated successfully. (file state is current in your context — no need to Read it back)
Fable
thinking
I'm checking for any other references to the `Gmsh` enum that might be used without proper guards, and scanning through the MeshPart and Workbench CMakeLists files and command definitions—the earlier grep confirmed there's nothing in those areas. I also need to verify whether there's a `MeshPart_Mesher` command or any gmsh-related commands in Workbench, but that search came up empty too. There's still one concern about the `Gmsh` enum value itself that I need to address.

The stacked widget indices remain unchanged with Standard=0, Mefisto=1, Netgen=2, so Gmsh=3 would be out of range and never added to the widget—the `setTabEnabled` calls still work fine. I should grep through Tessellation.c  …
Fable
Let me verify all gmsh references are guarded and check for any other consumers of RemeshGmsh.h, then compile all three targets.
Fable
⚙ Bash {"command": "echo \"=== remaining Gmsh/gmsh in Tessellation.cpp (should all be inside guards) ===\"; grep -n \"gmsh\\|Gmsh\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp; echo \"=== other includers of R…
tool result
=== remaining Gmsh/gmsh in Tessellation.cpp (should all be inside guards) ===
60:    gmsh = new Mesh2ShapeGmsh(this);
65:    // The gmsh tab drives an external gmsh process (QProcess), unavailable in wasm.
66:    ui->stackedWidget->addTab(gmsh, tr("Gmsh"));
111:    connect(gmsh, &Mesh2ShapeGmsh::processed, this, &Tessellation::gmshProcessed);
195:void Tessellation::gmshProcessed()
311:    // For Gmsh the workflow is very different because it uses an executable
313:    if (method == Gmsh) {  …[truncated]
Fable
thinking
All the Gmsh references in Tessellation.cpp are properly guarded within `#ifndef __EMSCRIPTEN__` blocks, so they won't cause issues in the Emscripten build. I'm also checking other files that include RemeshGmsh.h — Command.cpp is already handled from earlier work, and I need to verify RemeshGmsh itself.

cpp is excluded from the wasm build. Now I'm ready to compile all three targets to verify everything builds correctly.
Fable
All gmsh references are now within guards, and the only other RemeshGmsh.h includers are already handled. Now let me compile all three targets.
Fable
⚙ Bash {"command": "source /home/magik6k/lcad-wasm/env.sh && cd /opt/toolchains/src/freecad-gui-build && bash /tmp/cmd-meshcmd.sh && echo MESHCMD_OK\nninja -t commands src/Mod/MeshPart/Gui/CMakeFiles/MeshPartGui.dir/Command.cpp.o | tail -1 > /tmp/…
tool result
Exit code 1
MESHCMD_OK
MPCMD_OK
In file included from /home/magik6k/lcad-wasm/freecad-port/FreeCAD/src/Mod/MeshPart/Gui/Tessellation.cpp:736:
/opt/toolchains/src/freecad-gui-build/src/Mod/MeshPart/Gui/MeshPartGui_autogen/include/moc_Tessellation.cpp:38:48: error: no member named 'Mesh2ShapeGmsh' in namespace 'MeshPartGui'
   38 | template <> constexpr inline auto MeshPartGui::Mesh2ShapeGmsh::qt_create_metaobjectdata<qt_meta  …[truncated]
Fable
thinking
The issue is that the MOC compiler doesn't evaluate the `__EMSCRIPTEN__` preprocessor directive when parsing headers, so it still generates metadata for the `Mesh2ShapeGmsh` class even though it's conditionally excluded from the actual build, causing the linker to fail when it can't find that symbol. problem. So moc generated the code for Mesh2ShapeGmsh because it doesn't see `__EMSCRIPTEN__` as defined in its own environment.

The solution is to make moc skip the class too by defining `__EMSCRIPTEN__` when moc runs. Looking at how RemeshGmsh is handled in Mesh/Gui — those files are completely excluded from the CMake build under Emscripten, so automoc never processes them in the first place.  …
Fable
MESHCMD_OK and MPCMD_OK pass. Tessellation.cpp fails at the MOC stage: moc (a host tool) doesn't see the compiler builtin `__EMSCRIPTEN__`, so it still emits meta-object code for the guarded `Mesh2ShapeGmsh` Q_OBJECT class. Let me check how the freecad-port handles `__EMSCRIPTEN__` for automoc elsewhere.
Fable
⚙ Bash {"command": "grep -rin \"AUTOMOC_MOC_OPTIONS\\|__EMSCRIPTEN__\\|AUTOMOC_MACRO\" /home/magik6k/lcad-wasm/freecad-port/FreeCAD/CMakeLists.txt /home/magik6k/lcad-wasm/freecad-port/FreeCAD/cMake/ 2>/dev/null | head -30; echo \"=== how automoc i…
tool result
=== how automoc invokes moc for this target (check for -D__EMSCRIPTEN__) ===
(none in MeshPart CMake)
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
thinking
I need to figure out the cleanest way to handle Q_OBJECT classes in the Emscripten build. Let me search through the codebase to see if there's already a pattern for guarding Q_OBJECT with `__EMSCRIPTEN__` and how moc is configured for those cases. I'm considering two main approaches: either adding the define to moc's command-line options or guarding the class declaration itself.

The first approach — passing `-D__EMSCRIPTEN__` to moc — is cleaner because moc has a preprocessor that respects macro definitions and will skip guarded code consistently with the compiler. This means moc won't try to generate meta-object code for the guarded class or its guarded slots, keeping everything in sync. T  …
Fable
MESHCMD_OK and MPCMD_OK pass. The remaining failure is a MOC issue: `moc` runs as a host tool without the `__EMSCRIPTEN__` compiler builtin, so it still generates meta-object code for the guarded `Mesh2ShapeGmsh` Q_OBJECT class. Let me inspect how moc is invoked for this target.
Fable
⚙ Bash {"command": "cd /opt/toolchains/src/freecad-gui-build; echo \"=== autogen dirs ===\"; ls src/Mod/MeshPart/Gui/MeshPartGui_autogen/ 2>/dev/null; echo \"=== moc predefs / options files ===\"; find src/Mod/MeshPart/Gui -name \"*.json\" -o -nam…
tool result
=== autogen dirs ===
deps
include
moc_predefs.h
mocs_compilation.cpp
timestamp
=== moc predefs / options files ===
src/Mod/MeshPart/Gui/MeshPartGui_autogen/moc_predefs.h
src/Mod/MeshPart/Gui/CMakeFiles/MeshPartGui_autogen.dir/AutogenInfo.json
src/Mod/MeshPart/Gui/CMakeFiles/MeshPartGui_autogen.dir/ParseCache.txt
=== grep EMSCRIPTEN in autogen info ===
src/Mod/MeshPart/Gui/MeshPartGui_autogen/moc_predefs.h
src/Mod/MeshPart/Gui/MeshPartGui_autogen/mocs_compilation.cpp
src/Mod/MeshP  …[truncated]
Fable
thinking
I'm realizing that moc_predefs.h is generated by running the compiler with specific flags to dump its predefined macros, and since the emscripten compiler does define __EMSCRIPTEN__, it should appear in that file. Let me verify whether it's actually there.

The real issue might be that moc_predefs.h was generated with a different compiler or before emscripten was configured, or the moc file itself is stale — it was generated before I added the preprocessor guards to the header. Simply checking the compile command doesn't regenerate the moc output, so moc_Tessellation.cpp still contains the old version without the guards. I need to check if moc_predefs.h has __EMSCRIPTEN__ and then regenerate  …
Fable
There's a `moc_predefs.h` — moc includes it, and if the emscripten compiler defines `__EMSCRIPTEN__`, it should be there. The moc file is likely just stale (generated before my edits). Let me check.
Fable
⚙ Bash {"command": "cd /opt/toolchains/src/freecad-gui-build; echo \"=== __EMSCRIPTEN__ in moc_predefs.h? ===\"; grep -c \"__EMSCRIPTEN__\" src/Mod/MeshPart/Gui/MeshPartGui_autogen/moc_predefs.h && grep \"__EMSCRIPTEN__\" src/Mod/MeshPart/Gui/Mesh…
tool result
=== __EMSCRIPTEN__ in moc_predefs.h? ===
1
#define __EMSCRIPTEN__ 1
=== does the STALE moc reference Mesh2ShapeGmsh (proves staleness)? ===
16
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
thinking
The issue is that `moc_predefs.h` already defines `__EMSCRIPTEN__`, which moc includes via the `--include` flag, so the preprocessor will skip the guarded `Mesh2ShapeGmsh` class during preprocessing. The current moc file is just stale from before my edits—it still references `Mesh2ShapeGmsh` 16 times. I just need to regenerate the moc file and no CMake changes are required.
Fable
`moc_predefs.h` already contains `#define __EMSCRIPTEN__ 1` (moc includes it via `--include`), and the current moc_Tessellation.cpp is simply stale — generated before my edits (it still references Mesh2ShapeGmsh 16 times). No CMake change is needed; I just need to regenerate the autogen so moc re-parses the now-guarded header. Let me regenerate and re-verify.
Fable
⚙ Bash {"command": "source /home/magik6k/lcad-wasm/env.sh && cd /opt/toolchains/src/freecad-gui-build && ninja src/Mod/MeshPart/Gui/CMakeFiles/MeshPartGui_autogen 2>&1 | tail -5; echo \"=== Mesh2ShapeGmsh refs in regenerated moc (expect 0) ===\"; …
tool result
git
/opt/toolchains/src/freecad-gui-build/src/Build/Version.h.out written
[2/5] Building CXX object src/Mod/Mesh/Gui/CMakeFiles/MeshGui.dir/Command.cpp.o
[3/5] Linking CXX static library src/Mod/Mesh/Gui/MeshGui.a
[4/5] Automatic MOC and UIC for target MeshPartGui
=== Mesh2ShapeGmsh refs in regenerated moc (expect 0) ===
0
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
thinking
The moc regeneration worked correctly—it properly excluded Mesh2ShapeGmsh since the predefined macro __EMSCRIPTEN__ was set. Now I'm running the full verification across all three targets.
Fable
The regenerated moc now has 0 references to `Mesh2ShapeGmsh` — moc correctly honored the guard via `moc_predefs.h`. Now let me run the full verification for all three targets.
Fable
⚙ Bash {"command": "source /home/magik6k/lcad-wasm/env.sh && cd /opt/toolchains/src/freecad-gui-build && bash /tmp/cmd-meshcmd.sh && echo MESHCMD_OK\nninja -t commands src/Mod/MeshPart/Gui/CMakeFiles/MeshPartGui.dir/Command.cpp.o | tail -1 > /tmp/…
tool result
MESHCMD_OK
MPCMD_OK
MPTESS_OK
zshexit:1: parameter HISTDB_FD does not contain a file descriptor
Fable
All three compile: MESHCMD_OK, MPCMD_OK, MPTESS_OK. ## Summary The gmsh-remesh feature is now cleanly excluded under `__EMSCRIPTEN__` across both modules. Desktop builds are unaffected (all guards are `#ifndef __EMSCRIPTEN__` / `if(NOT EMSCRIPTEN)`). ### Changes in this extension **`src/Mod/Mesh/Gui/RemeshGmsh.h`** — the header itself had unguarded `QProcess`-typed members that broke any consumer: - Guarded `#include <QProcess>`. - Guarded the entire `namespace MeshGui { ... }` body (all three classes: `GmshWidget`, `RemeshGmsh`, `TaskRemeshGmsh`). Since `RemeshGmsh.cpp` (their implementation) is excluded from the WASM build, the whole declaration set is guarded, making `#include "RemeshGmsh.h"` harmless under wasm. **`src/Mod/MeshPart/Gui/Tessellation.h`** — reuses `GmshWidget` for the "Gmsh" meshing tab: - Guarded `#include <Mod/Mesh/Gui/RemeshGmsh.h>`. - Guarded the `Mesh2ShapeGmsh : public MeshGui::GmshWidget` class declaration. - Guarded the `gmshProcessed()` slot and the `QPointer<Mesh2ShapeGmsh> gmsh;` member. **`src/Mod/MeshPart/Gui/Tessellation.cpp`** — guarded every gmsh use: the `gmsh` construction, the `addTab(gmsh, "Gmsh")` call, the `connect(...)` in `setupConnections`, the `gmshProcessed()` definition, the `if (method == Gmsh)` async branch in `accept()`, and the entire `Mesh2ShapeGmsh` implementation block (`Private`, ctor/dtor, `process`, `writeProject`, `loadOutput`). ### Key finding (no CMake change needed for MOC) The initial regen failure was a stale MOC artifact, not a real problem. CMake's AUTOMOC generates `moc_predefs.h` by dumping the target compiler's predefined macros — and the emscripten compiler defines `__EMSCRIPTEN__ 1`, which is present in `moc_predefs.h` and `--include`d by moc. So moc honors the `#ifndef __EMSCRIPTEN__` guards on its own; the previously-generated `moc_Tessellation.cpp` just predated my edits. Regenerating the `MeshPartGui_autogen` target produced a moc file with zero `Mesh2ShapeGmsh` references. No `AUTOMOC_MOC_OPTIONS` / CMakeLists edit was required, and none was made in MeshPart/Gui. No `*Gmsh` command references exist in MeshPart/Gui's `Command.cpp`, `Workbench.cpp`, or `CMakeLists.txt`, so nothing to guard there.