Restrict tables path to make foolproof across platforms

Author: steppi

pixi.toml

@@ -58,7 +58,6 @@ configure-tests.cmd = [
   "-B build",
 ]
 configure-tests.cwd = "."
-configure-tests.env.XSREF_TABLES_PATH = "$PWD/xsref/tables"
 # build for tests
 build-tests.depends-on = ["configure-tests", "build-only"]
 # run tests

tests/CMakeLists.txt

@@ -1,9 +1,4 @@
-if(NOT DEFINED ENV{XSREF_TABLES_PATH})
-    message(FATAL_ERROR "XSREF_TABLES_PATH environment variable is not set. Specify the path to xsref/tables in your environment.")
-endif()
-
-set(XSREF_TABLES_PATH $ENV{XSREF_TABLES_PATH})
-
+set(XSREF_TABLES_PATH "${CMAKE_SOURCE_DIR}/xsref/tables")
 find_package(Catch2 3 REQUIRED)
 find_package(Arrow REQUIRED)
 find_package(Parquet REQUIRED)