From a9bc8a25eb9a5851062167a3475622ba6b1a8b9a Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludovic.courtes@inria.fr>
Date: Thu, 29 Jul 2021 15:42:10 +0200
Subject: gnu: Add FXDiv.

* gnu/packages/maths.scm (fxdiv): New variable.
* gnu/packages/patches/fxdiv-system-libraries.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
---
 gnu/packages/patches/fxdiv-system-libraries.patch | 44 +++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 gnu/packages/patches/fxdiv-system-libraries.patch

(limited to 'gnu/packages/patches')

diff --git a/gnu/packages/patches/fxdiv-system-libraries.patch b/gnu/packages/patches/fxdiv-system-libraries.patch
new file mode 100644
index 0000000000..eecfaf7efc
--- /dev/null
+++ b/gnu/packages/patches/fxdiv-system-libraries.patch
@@ -0,0 +1,44 @@
+This patch allows the build process to use the provided dependencies instead
+of adding their source as CMake sub-directories (in which case "make install"
+would install googletest's and googlebenchmark's libraries and headers).
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index bcae6b5..ff6710d 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -21,7 +21,7 @@ IF(FXDIV_BUILD_TESTS)
+ ENDIF()
+ 
+ # ---[ Download deps
+-IF(FXDIV_BUILD_TESTS AND NOT DEFINED GOOGLETEST_SOURCE_DIR)
++IF(FALSE)
+   MESSAGE(STATUS "Downloading Google Test to ${CMAKE_BINARY_DIR}/googletest-source (define GOOGLETEST_SOURCE_DIR to avoid it)")
+   CONFIGURE_FILE(cmake/DownloadGoogleTest.cmake "${CMAKE_BINARY_DIR}/googletest-download/CMakeLists.txt")
+   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
+@@ -31,7 +31,7 @@ IF(FXDIV_BUILD_TESTS AND NOT DEFINED GOOGLETEST_SOURCE_DIR)
+   SET(GOOGLETEST_SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-source" CACHE STRING "Google Test source directory")
+ ENDIF()
+ 
+-IF(FXDIV_BUILD_BENCHMARKS AND NOT DEFINED GOOGLEBENCHMARK_SOURCE_DIR)
++IF(FALSE)
+   MESSAGE(STATUS "Downloading Google Benchmark to ${CMAKE_BINARY_DIR}/googlebenchmark-source (define GOOGLEBENCHMARK_SOURCE_DIR to avoid it)")
+   CONFIGURE_FILE(cmake/DownloadGoogleBenchmark.cmake "${CMAKE_BINARY_DIR}/googlebenchmark-download/CMakeLists.txt")
+   EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
+@@ -54,7 +54,7 @@ INSTALL(FILES include/fxdiv.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+ 
+ IF(FXDIV_BUILD_TESTS)
+   # ---[ Build google test
+-  IF(NOT TARGET gtest)
++  IF(FALSE)
+     SET(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+     ADD_SUBDIRECTORY(
+       "${GOOGLETEST_SOURCE_DIR}"
+@@ -78,7 +78,7 @@ ENDIF()
+ 
+ IF(FXDIV_BUILD_BENCHMARKS)
+   # ---[ Build google benchmark
+-  IF(NOT TARGET benchmark)
++  IF(FALSE)
+     SET(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE)
+     ADD_SUBDIRECTORY(
+       "${GOOGLEBENCHMARK_SOURCE_DIR}"
-- 
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