lcr/0006-add-macro-to-adapt-musl-libc.patch

From 6422cb8a639f125cecfdf0829dd713d84ab3a9aa Mon Sep 17 00:00:00 2001
From: zhangxiaoyu <zhangxiaoyu58@huawei.com>
Date: Tue, 15 Nov 2022 20:54:23 +0800
Subject: [PATCH 6/9] add macro to adapt musl libc

Signed-off-by: zhangxiaoyu <zhangxiaoyu58@huawei.com>
---
 cmake/set_build_flags.cmake        | 14 ++++++++++++--
 third_party/libocispec/common_h.py |  9 +++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/cmake/set_build_flags.cmake b/cmake/set_build_flags.cmake
index 2b9249d9..3b6842a8 100644
--- a/cmake/set_build_flags.cmake
+++ b/cmake/set_build_flags.cmake
@@ -21,11 +21,11 @@
 #
 
 # set common FLAGS
-set(CMAKE_C_FLAGS "-fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2 -Wall -Werror -fPIE")
+set(CMAKE_C_FLAGS "-fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2 -Wall -fPIE")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
 
 if (ENABLE_UT)
-    set(CMAKE_CXX_FLAGS "-fPIC -std=c++11 -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2 -Wall -Werror")
+    set(CMAKE_CXX_FLAGS "-fPIC -std=c++11 -fstack-protector-all -D_FORTIFY_SOURCE=2 -O2 -Wall")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__FILENAME__='\"$(subst ${CMAKE_SOURCE_DIR}/,,$(abspath $<))\"'")
 endif()
 set(CMAKE_SHARED_LINKER_FLAGS "-Wl,-E -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -Wtrampolines -shared -pthread")
@@ -40,3 +40,13 @@ if (ENABLE_GCOV)
     message("-----CFLAGS: " ${CMAKE_C_FLAGS})
     message("------------------------------------")
 endif()
+
+if (MUSL)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__MUSL__")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__MUSL__")
+endif()
+
+if (NOT DISABLE_WERROR)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
+endif()
diff --git a/third_party/libocispec/common_h.py b/third_party/libocispec/common_h.py
index 4ce7bda6..02c689dc 100644
--- a/third_party/libocispec/common_h.py
+++ b/third_party/libocispec/common_h.py
@@ -60,6 +60,15 @@ extern "C" {
 
 # undef linux
 
+#ifdef __MUSL__
+#undef stdin
+#undef stdout
+#undef stderr
+#define stdin stdin
+#define stdout stdout
+#define stderr stderr
+#endif
+
 // options to report error if there is unknown key found in json
 # define OPT_PARSE_STRICT 0x01
 // options to generate all key and value
-- 
2.25.1