buildroot/package/ninja/0003-CMake-fix-object-library-usage.patch

From 7982ecebe1c1c41e82779a65fa2d93f19ffd755f Mon Sep 17 00:00:00 2001
From: Yegor Yefremov <yegorslists@googlemail.com>
Date: Wed, 5 Feb 2020 12:28:44 +0100
Subject: [PATCH] CMake: fix object library usage

Object libraries cannot be use in target_link_libraries() command
as they are no normal binary files like *.a or *.so but a collection
of object files.

See add_library() definition for details.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
---
 CMakeLists.txt | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index af8010f..028a7bb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -83,8 +83,7 @@ target_compile_definitions(libninja PRIVATE _WIN32_WINNT=0x0601 __USE_MINGW_ANSI
 endif()

 # Main executable is library plus main() function.
-add_executable(ninja src/ninja.cc)
-target_link_libraries(ninja PRIVATE libninja libninja-re2c)
+add_executable(ninja src/ninja.cc $<TARGET_OBJECTS:libninja> $<TARGET_OBJECTS:libninja-re2c>)

 # Tests all build into ninja_test executable.
 add_executable(ninja_test
@@ -106,11 +105,12 @@ add_executable(ninja_test
	src/subprocess_test.cc
	src/test.cc
	src/util_test.cc
+	$<TARGET_OBJECTS:libninja>
+	$<TARGET_OBJECTS:libninja-re2c>
 )
 if(WIN32)
	target_sources(ninja_test PRIVATE src/includes_normalize_test.cc src/msvc_helper_test.cc)
 endif()
-target_link_libraries(ninja_test PRIVATE libninja libninja-re2c)

 foreach(perftest
   build_log_perftest
@@ -120,8 +120,7 @@ foreach(perftest
   hash_collision_bench
   manifest_parser_perftest
 )
-  add_executable(${perftest} src/${perftest}.cc)
-  target_link_libraries(${perftest} PRIVATE libninja libninja-re2c)
+  add_executable(${perftest} src/${perftest}.cc $<TARGET_OBJECTS:libninja> $<TARGET_OBJECTS:libninja-re2c>)
 endforeach()

 enable_testing()
--
2.17.0