2.5.10: Build fails when MicroTeX is supplied as a git submodule: Cannot specify compile options for target "microtex" which is not built by this project.

[yurivict]

cmake first finds the submodule, but then fails with the error from the SUBJECT:

===>  Configuring for cadabra2-2.5.10
===>  Performing out-of-source build
/bin/mkdir -p /usr/ports/math/cadabra2/work/.build
-- Set CMake policy CMP0042 to NEW
-- Set CMake policy CMP0054 to NEW
-- Set CMake policy CMP0127 to NEW
-- Set CMake policy CMP0148 to NEW
-- Set CMake policy CMP0167 to NEW
-- Set CMake policy CMP0094 to NEW (use first Python found)
-- Set CMake policy CMP0169 to NEW (use new FetchContent)
-- Set CMake policy CMP0177 to NEW (destination paths are normalised)
-- The C compiler identification is Clang 19.1.5
-- The CXX compiler identification is Clang 19.1.5
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/local/libexec/ccache/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/local/libexec/ccache/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Git not found, not including commit SHA

-------------------------------------------
  Building Cadabra version 2.5.10 (64-bit)
-------------------------------------------
-- Build id 'from the FreeBSD port' dated 2025-01-08
-- Build mode is set to 'Release'
-- Architecture is 'amd64'
-- Install directory set to /usr/local
-- Building in user mode
-- Building tests
-- IPO / LTO enabled

-------------------------------------------
  Configuring Python
-------------------------------------------
-- Found Python: /usr/local/bin/python3.11 (found version "3.11.11") found components: Interpreter Development Development.Module Development.Embed
-- Could NOT find pybind11 (missing: pybind11_DIR)
-- Using included pybind11.
CMake Deprecation Warning at libs/pybind11/CMakeLists.txt:8 (cmake_minimum_required):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
  to tell CMake that the project requires at least <min> but has been updated
  to work with policies introduced by <max> or earlier.


-- pybind11 v2.14.0 dev1
-- Found PythonInterp: /usr/local/bin/python3.11 (found suitable version "3.11.11", minimum required is "3.11.11")
-- Found PythonLibs: /usr/local/lib/libpython3.11.so
-- Performing Test HAS_FLTO_THIN
-- Performing Test HAS_FLTO_THIN - Success
-- Found python /usr/local/lib/libpython3.11.so
-- Python version is 3.11.
-- Making PYTHON_SITE_PATH relative if possible
-- Installing Cadabra Python modules in (PYTHON_SITE_PATH) lib/python3.11/site-packages
-- relative to CMake install prefix /usr/local
-- Python abi name cpython-311
-- Python module extension cpython-311.so

-------------------------------------------
  Configuring Jupyter kernel
-------------------------------------------
-- Building the default Jupyter kernel

-------------------------------------------
  Configuring client-server
-------------------------------------------
-- Found PkgConfig: /usr/local/bin/pkgconf (found version "2.3.0")
-- Checking for module 'glibmm-2.4'
--   Found glibmm-2.4, version 2.66.7
-- Found glibmm; include path /usr/local/include/glibmm-2.4;/usr/local/lib/glibmm-2.4/include;/usr/local/include;/usr/local/include/glib-2.0;/usr/local/lib/glib-2.0/include;/usr/local/include/sigc++-2.0;/usr/local/lib/sigc++-2.0/include
-- Found glibmm; lib glibmm-2.4;gobject-2.0;glib-2.0;intl;sigc-2.0
-- Checking for module 'sqlite3'
--   Found sqlite3, version 3.46.1
-- Found sqlite3 library path sqlite3
-- Found sqlite3 include path /usr/local/include
-- Found SQLITE3: sqlite3
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Found OpenSSL: /usr/lib/libcrypto.so (found version "3.0.15")
-- OPENSSL_LIBRARIES:      /usr/lib/libssl.so;/usr/lib/libcrypto.so
-- OPENSSL_SSL_LIBRARY:    /usr/lib/libssl.so
-- OPENSSL_CRYPTO_LIBRARY: /usr/lib/libcrypto.so

-------------------------------------------
  Configuring core
-------------------------------------------
-- Found glibmm; include path /usr/local/include/glibmm-2.4;/usr/local/lib/glibmm-2.4/include;/usr/local/include;/usr/local/include/glib-2.0;/usr/local/lib/glib-2.0/include;/usr/local/include/sigc++-2.0;/usr/local/lib/sigc++-2.0/include
-- Found glibmm; lib glibmm-2.4;gobject-2.0;glib-2.0;intl;sigc-2.0
-- Found gmp header at  /usr/local/include
-- Found gmp library at /usr/local/lib/libgmp.so
-- Found gmp
-- Found gmpxx
-- Linking to GMP   library /usr/local/lib/libgmp.so
-- Linking to GMPXX library /usr/local/lib/libgmpxx.so
-- IPO / LTO for cadabra2 enabled
-- Building without Mathematica support

-------------------------------------------
  Configuring packages
-------------------------------------------
-- Found gmp header at  /usr/local/include
-- Found gmp library at /usr/local/lib/libgmp.so
-- Found gmp
-- Found gmpxx
-- Storing algorithm C++ module as core
-- IPO / LTO for _component enabled
-- Storing algorithm C++ module as utils
-- IPO / LTO for _algorithm enabled

-------------------------------------------
  Configuring native notebook frontend
-------------------------------------------
-- Checking for module 'gtkmm-3.0'
--   Found gtkmm-3.0, version 3.24.9
-- Found gtkmm
-- Using gtkmm frontend
-- Including MicroTeX support for typesetting
-- Found MicroTeX as submodule in /usr/ports/math/cadabra2/work/cadabra2-2.5.10/submodules/microtex/
-- Performing Test COMPILER_SUPPORTS_CXX11
-- Performing Test COMPILER_SUPPORTS_CXX11 - Success
-- Performing Test COMPILER_SUPPORTS_CXX17
-- Performing Test COMPILER_SUPPORTS_CXX17 - Success
-- Performing Test COMPILER_SUPPORTS_CXX20
-- Performing Test COMPILER_SUPPORTS_CXX20 - Success
-- Checking for module 'tinyxml2'
--   Found tinyxml2, version 10.0.0
-- We are working with GTK on a Unix like OS
-- Found Fontconfig: /usr/local/lib/libfontconfig.so (found version "2.15.0")
-- Checking for module 'gtkmm-3.0'
--   Found gtkmm-3.0, version 3.24.9
-- Checking for module 'gtksourceviewmm-3.0'
--   Found gtksourceviewmm-3.0, version 3.18.0
-- Checking for module 'cairomm-1.0'
--   Found cairomm-1.0, version 1.14.5
CMake Error at frontend/gtkmm/CMakeLists.txt:53 (target_compile_options):
  Cannot specify compile options for target "microtex" which is not built by
  this project.


-- Found sqlite3 library path sqlite3
-- Found sqlite3 include path /usr/local/include
-- Found glibmm; include path /usr/local/include/glibmm-2.4;/usr/local/lib/glibmm-2.4/include;/usr/local/include;/usr/local/include/glib-2.0;/usr/local/lib/glib-2.0/include;/usr/local/include/sigc++-2.0;/usr/local/lib/sigc++-2.0/include
-- Found glibmm; lib glibmm-2.4;gobject-2.0;glib-2.0;intl;sigc-2.0
-- Found gtkmm
-- MicroTeX binaries will be built at /usr/ports/math/cadabra2/work/cadabra2-2.5.10/submodules/microtex//build
-- Checking for module 'fontconfig'
--   Found fontconfig, version 2.15.0
-- Checking for module 'pangomm-1.4'
--   Found pangomm-1.4, version 2.46.4
-- Installing LaTeX style files in share/cadabra2/latex

-------------------------------------------
  Configuring tests
-------------------------------------------
-- Set PYTHONPATH for testing to :/usr/ports/math/cadabra2/work/cadabra2-2.5.10/libs/appdirs:/usr/ports/math/cadabra2/work/.build/core/packages:/usr/ports/math/cadabra2/work/cadabra2-2.5.10/core/packages:/usr/ports/math/cadabra2/work/cadabra2-2.5.10/core:/usr/ports/math/cadabra2/work/.build/core/Release:/usr/ports/math/cadabra2/work/.build/core/:/usr/ports/math/cadabra2/work/cadabra2-2.5.10/tests

-------------------------------------------
  Configuring documentation
-------------------------------------------
-- Book will be created in /usr/ports/math/cadabra2/work/.build/book

-------------------------------------------
  All scripts completed
-------------------------------------------
-- Configuring incomplete, errors occurred!
*** Error code 1

[kpeeters]

Hmm, that's unexpected, I can't really say I understand why cmake considers the submodule to be not built by 'this project'. If you have any hints/suggestions let me know.