From c7d49423ff7df1d20555fe8a5173320668642036 Mon Sep 17 00:00:00 2001
From: David A Minton <daminton@purdue.edu>
Date: Mon, 18 Sep 2023 12:25:19 -0400
Subject: [PATCH] Added debug arguments to cython call when in debug build type

---
 pyproject.toml          | 1 +
 swiftest/CMakeLists.txt | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index cf00e16ee..a66de5da9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,6 +54,7 @@ build-backend = "scikit_build_core.build"
 cmake.args = ["-DUSE_SIMD=OFF"]
 sdist.include = ["src/globals/globals_module.f90.in","swiftest/*.py","swiftest/*.pyx","swiftest/*.h"]
 build-dir = "build/{wheel_tag}"
+cmake.verbose = true
 
 [tool.cibuildwheel]
 test-command = "pytest {package}/tests"
diff --git a/swiftest/CMakeLists.txt b/swiftest/CMakeLists.txt
index 4ffc024d8..31114fd6d 100644
--- a/swiftest/CMakeLists.txt
+++ b/swiftest/CMakeLists.txt
@@ -18,12 +18,16 @@ FIND_PROGRAM(CYTHON
             NO_CMAKE_FIND_ROOT_PATH
             )
 MESSAGE(STATUS "Cython executable path: ${CYTHON}")
+SET(CYTHON_ARGS "${CMAKE_CURRENT_SOURCE_DIR}/${SWIFTEST_BINDINGS}.pyx" "--output-file" "${CMAKE_CURRENT_BINARY_DIR}/${SWIFTEST_BINDINGS}.c")
+STRING(TOUPPER "${CMAKE_BUILD_TYPE}" BT)
+IF (BT STREQUAL "DEBUG")
+    LIST(APPEND CYTHON_ARGS "--gdb")
+endif ()
 ADD_CUSTOM_COMMAND(
   OUTPUT "${SWIFTEST_BINDINGS}.c"
   DEPENDS "${SWIFTEST_BINDINGS}.pyx"
   VERBATIM
-  COMMAND "${CYTHON}" "${CMAKE_CURRENT_SOURCE_DIR}/${SWIFTEST_BINDINGS}.pyx" --output-file
-          "${CMAKE_CURRENT_BINARY_DIR}/${SWIFTEST_BINDINGS}.c")
+  COMMAND "${CYTHON}" ${CYTHON_ARGS} )
 
 PYTHON_ADD_LIBRARY(${SWIFTEST_BINDINGS} MODULE "${CMAKE_CURRENT_BINARY_DIR}/${SWIFTEST_BINDINGS}.c" WITH_SOABI)