lemon-graph: fix build with CMake 4.0

From 0073156cc16cecc597902e9294e4996dafacc1a3 Mon Sep 17 00:00:00 2001

From: hiaselhans <simon.klemenc@gmail.com>

Date: Wed, 21 May 2025 08:12:37 +0200

Subject: [PATCH] update cmake to work with newer versions

---

 .gitignore     |  1 +

 CMakeLists.txt | 61 +++++++++-----------------------------------------

 2 files changed, 11 insertions(+), 51 deletions(-)

 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore

new file mode 100644

index 0000000..c795b05

--- /dev/null

+++ b/.gitignore

@@ -0,0 +1 @@

+build

\ No newline at end of file

diff --git a/CMakeLists.txt b/CMakeLists.txt

index 03e1cc7..26ec718 100644

--- a/CMakeLists.txt

+++ b/CMakeLists.txt

@@ -1,61 +1,20 @@

-CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

-

-CMAKE_POLICY(SET CMP0048 OLD)

+CMAKE_MINIMUM_REQUIRED(VERSION 3.12...5.0)

 SET(PROJECT_NAME "LEMON")

-PROJECT(${PROJECT_NAME})

-

-INCLUDE(FindPythonInterp)

-INCLUDE(FindWget)

-IF(EXISTS ${PROJECT_SOURCE_DIR}/cmake/version.cmake)

-  INCLUDE(${PROJECT_SOURCE_DIR}/cmake/version.cmake)

-ELSEIF(DEFINED ENV{LEMON_VERSION})

+IF(DEFINED ENV{LEMON_VERSION})

   SET(LEMON_VERSION $ENV{LEMON_VERSION} CACHE STRING "LEMON version string.")

+ELSEIF(EXISTS ${CMAKE_SOURCE_DIR}/cmake/version.cmake)

+  INCLUDE(${CMAKE_SOURCE_DIR}/cmake/version.cmake)

 ELSE()

-  EXECUTE_PROCESS(

-    COMMAND

-    hg log -r. --template "{latesttag}"

-    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}

-    OUTPUT_VARIABLE HG_REVISION_TAG

-    ERROR_QUIET

-    OUTPUT_STRIP_TRAILING_WHITESPACE

-  )

-  EXECUTE_PROCESS(

-    COMMAND

-    hg log -r. --template "{latesttagdistance}"

-    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}

-    OUTPUT_VARIABLE HG_REVISION_DIST

-    ERROR_QUIET

-    OUTPUT_STRIP_TRAILING_WHITESPACE

-  )

-  EXECUTE_PROCESS(

-    COMMAND

-    hg log -r. --template "{node|short}"

-    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}

-    OUTPUT_VARIABLE HG_REVISION_ID

-    ERROR_QUIET

-    OUTPUT_STRIP_TRAILING_WHITESPACE

-  )

+  MESSAGE(FATAL_ERROR "LEMON_VERSION is not defined. Please set it in the environment")

+ENDIF()

-  IF(HG_REVISION_TAG STREQUAL "")

-    SET(HG_REVISION_ID "hg-tip")

-  ELSE()

-    IF(HG_REVISION_TAG STREQUAL "null")

-      SET(HG_REVISION_TAG "trunk")

-    ELSEIF(HG_REVISION_TAG MATCHES "^r")

-      STRING(SUBSTRING ${HG_REVISION_TAG} 1 -1 HG_REVISION_TAG)

-    ENDIF()

-    IF(HG_REVISION_DIST STREQUAL "0")

-      SET(HG_REVISION ${HG_REVISION_TAG})

-    ELSE()

-      SET(HG_REVISION

-	"${HG_REVISION_TAG}+${HG_REVISION_DIST}-${HG_REVISION_ID}")

-    ENDIF()

-  ENDIF()

-  SET(LEMON_VERSION ${HG_REVISION} CACHE STRING "LEMON version string.")

-ENDIF()

+PROJECT(${PROJECT_NAME} VERSION ${LEMON_VERSION})

+

+find_package(Python3 REQUIRED COMPONENTS Interpreter)

+INCLUDE(FindWget)

 SET(PROJECT_VERSION ${LEMON_VERSION})

  stdenv,

  fetchurl,

  cmake,

  python3,

}:

stdenv.mkDerivation rec {

    sha256 = "1j6kp9axhgna47cfnmk1m7vnqn01hwh7pf1fp76aid60yhjwgdvi";

  };

  buildInputs = [ python3 ];

  nativeBuildInputs = [ cmake ];

  # error: no viable conversion from ...

  patches = [

    # error: ISO C++17 does not allow 'register' storage class specifier

    ./remove-register.patch

    # fix cmake compatibility. vendored from https://github.com/The-OpenROAD-Project/lemon-graph/pull/2

    ./cmake_version.patch

  ];

  meta = with lib; {