fix: work around pip bug

CMakeLists.txt

@@ -368,6 +368,7 @@ set(CMAKE_EXE_LINKER_FLAGS \"-lstdc++ -lgcc -lrt\" CACHE STRING \"Initial cache\
     UPDATE_COMMAND ""
     CMAKE_CACHE_ARGS
       -D${PROJECT_NAME}_SUPERBUILD:BOOL=0
+      -DSKBUILD_SCRIPTS_DIR:PATH=${SKBUILD_SCRIPTS_DIR}
       -DBUILD_CMAKE_FROM_SOURCE:BOOL=${BUILD_CMAKE_FROM_SOURCE}
       -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_INSTALL_PREFIX}
       ${${PROJECT_NAME}_CMAKE_CACHE_ARG}
@@ -448,5 +449,12 @@ include\(\"${CMakeProject_BINARY_DIR}/cmake_install.cmake\")
       endif()
       install(${type} ${file} DESTINATION "${relative_directory}" ${_permissions})
     endforeach()
-  endif()
+
+    endif()
+  # Prepare entry points
+  foreach(program IN ITEMS cmake ctest cpack ccmake)
+    configure_file(scripts/entry-point.py.in "${CMAKE_CURRENT_BINARY_DIR}/bin/${program}")
+    message(STATUS "INSTALLING TO: ${SKBUILD_SCRIPTS_DIR}")
+    install(PROGRAMS "${CMAKE_CURRENT_BINARY_DIR}/bin/${program}" DESTINATION "${SKBUILD_SCRIPTS_DIR}")
+  endforeach()
 endif()

pyproject.toml

@@ -38,12 +38,6 @@ Source = "https://github.com/scikit-build/cmake-python-distributions"
 "Mailing list" = "https://groups.google.com/forum/#!forum/scikit-build"
 "Bug Tracker" = "https://github.com/scikit-build/cmake-python-distributions/issues"
 
-[project.scripts]
-ccmake = "cmake:ccmake"
-cmake = "cmake:cmake"
-cpack = "cmake:cpack"
-ctest = "cmake:ctest"
-
 
 [dependency-groups]
 test = [

scripts/entry-point.py.in

@@ -0,0 +1,21 @@
+#!python
+
+import os
+import sys
+import sysconfig
+
+# Scripts can be broken by pip's build isolation hacks
+# See: https://github.com/pypa/pip/blob/102d8187a1f5a4cd5de7a549fd8a9af34e89a54f/src/pip/_internal/build_env.py#L87
+pl = sysconfig.get_paths()['platlib']
+if pl not in sys.path:
+    sys.path.append(pl)
+
+from cmake import ${program}
+
+if __name__ == '__main__':
+    if sys.argv[0].endswith('-script.pyw'):
+        sys.argv[0] = sys.argv[0][: -11]
+    elif sys.argv[0].endswith('.exe'):
+        sys.argv[0] = sys.argv[0][: -4]
+
+    sys.exit(${program}())