From bec16cc91099a70bef0fc399cdd625b08db5bc8c Mon Sep 17 00:00:00 2001
From: David Elsing <david.elsing@posteo.net>
Date: Sat, 23 Mar 2024 22:04:54 +0000
Subject: [PATCH] gnu: clog: Add "-DUSE_SYSTEM_LIBS=ON" configure flag.

* gnu/packages/parallel.scm (clog)[arguments]: Add "-DUSE_SYSTEM_LIBS=ON"
to #:configure-flags.
* gnu/packages/patches/clog-fix-shared-build.patch: Adjust patch.
---
 gnu/packages/parallel.scm                     | 13 ++++---
 .../patches/clog-fix-shared-build.patch       | 39 ++-----------------
 2 files changed, 12 insertions(+), 40 deletions(-)

diff --git a/gnu/packages/parallel.scm b/gnu/packages/parallel.scm
index e8ef8c3e9b..84436eaeac 100644
--- a/gnu/packages/parallel.scm
+++ b/gnu/packages/parallel.scm
@@ -536,11 +536,14 @@ (define-public clog
               (inherit (package-source cpuinfo))
               (patches (search-patches "clog-fix-shared-build.patch"))))
     (arguments
-     (list #:configure-flags #~(list "-DBUILD_SHARED_LIBS=ON")
-           #:phases #~(modify-phases %standard-phases
-                        (add-after 'unpack 'chdir
-                          (lambda _
-                            (chdir "deps/clog"))))))
+     (list
+      #:configure-flags
+      ''("-DBUILD_SHARED_LIBS=ON"
+         "-DUSE_SYSTEM_LIBS=ON")
+      #:phases #~(modify-phases %standard-phases
+                   (add-after 'unpack 'chdir
+                     (lambda _
+                       (chdir "deps/clog"))))))
     (native-inputs (list googletest))
     (inputs '())
     (synopsis "C-style logging library based on printf")
diff --git a/gnu/packages/patches/clog-fix-shared-build.patch b/gnu/packages/patches/clog-fix-shared-build.patch
index bf80544b90..eb305339f5 100644
--- a/gnu/packages/patches/clog-fix-shared-build.patch
+++ b/gnu/packages/patches/clog-fix-shared-build.patch
@@ -1,50 +1,19 @@
 Author: Antero Mejr <antero@mailbox.org>
-Notes: Disabled function visibility hacks and googletest download. Enabled
-non-static builds.
+Notes: Disabled function visibility hacks. Enabled non-static builds.
 
 diff --git a/deps/clog/CMakeLists.txt b/deps/clog/CMakeLists.txt
-index 083f519..b7b225a 100644
+index 6e50c41..db02e95 100644
 --- a/deps/clog/CMakeLists.txt
 +++ b/deps/clog/CMakeLists.txt
-@@ -38,20 +38,8 @@ SET(CONFU_DEPENDENCIES_SOURCE_DIR ${CMAKE_SOURCE_DIR}/deps
- SET(CONFU_DEPENDENCIES_BINARY_DIR ${CMAKE_BINARY_DIR}/deps
-   CACHE PATH "Confu-style dependencies binary directory")
+@@ -55,7 +55,7 @@ IF(CLOG_BUILD_TESTS)
+ ENDIF()
  
--IF(CLOG_BUILD_TESTS)
--  IF(NOT DEFINED GOOGLETEST_SOURCE_DIR)
--    MESSAGE(STATUS "Downloading Google Test to ${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest (define GOOGLETEST_SOURCE_DIR to avoid it)")
--    CONFIGURE_FILE(cmake/DownloadGoogleTest.cmake "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download/CMakeLists.txt")
--    EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
--      WORKING_DIRECTORY "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download")
--    EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
--      WORKING_DIRECTORY "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest-download")
--    SET(GOOGLETEST_SOURCE_DIR "${CONFU_DEPENDENCIES_SOURCE_DIR}/googletest" CACHE STRING "Google Test source directory")
--  ENDIF()
--ENDIF()
--
  # ---[ clog library
 -ADD_LIBRARY(clog STATIC src/clog.c)
 +ADD_LIBRARY(clog src/clog.c)
  SET_TARGET_PROPERTIES(clog PROPERTIES
    C_STANDARD 99
    C_EXTENSIONS NO)
-@@ -74,16 +62,6 @@ INSTALL(TARGETS clog
- 
- # ---[ clog tests
- IF(CLOG_BUILD_TESTS)
--  # ---[ Build google test
--  IF(NOT TARGET gtest)
--    IF(MSVC AND NOT CLOG_RUNTIME_TYPE STREQUAL "static")
--      SET(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
--    ENDIF()
--    ADD_SUBDIRECTORY(
--      "${GOOGLETEST_SOURCE_DIR}"
--      "${CONFU_DEPENDENCIES_BINARY_DIR}/googletest")
--  ENDIF()
--
-   ADD_EXECUTABLE(clog-test test/clog.cc)
-   SET_TARGET_PROPERTIES(clog-test PROPERTIES
-     CXX_STANDARD 11
 diff --git a/deps/clog/include/clog.h b/deps/clog/include/clog.h
 index 4143761..aa9000f 100644
 --- a/deps/clog/include/clog.h