From 3c3614cec4f4355a7c2f7fa5bc61f8bb07e55025 Mon Sep 17 00:00:00 2001
From: Olliver Schinagl <oliver@schinagl.nl>
Date: Thu, 16 Feb 2023 15:25:12 +0100
Subject: [PATCH] tools/7z: Allow building on alpine

When using alpine as host, things start to fail. Lets pull in the
upstream alpine patches to make things work. This should not affect
other hosts.

Note, that Alpine has the '_GNU_SOURCE' define in the APKBUILD file, but
here we add this flag to the needed fix flags patch, which does similar
things too.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
---
 tools/7z/patches/7-zip-flags.patch | 27 ++++++++++++++
 tools/7z/patches/7-zip-musl.patch  | 59 ++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 tools/7z/patches/7-zip-flags.patch
 create mode 100644 tools/7z/patches/7-zip-musl.patch

diff --git a/tools/7z/patches/7-zip-flags.patch b/tools/7z/patches/7-zip-flags.patch
new file mode 100644
index 00000000000..ed5b5084018
--- /dev/null
+++ b/tools/7z/patches/7-zip-flags.patch
@@ -0,0 +1,27 @@
+--- a/CPP/7zip/7zip_gcc.mak
++++ b/CPP/7zip/7zip_gcc.mak
+@@ -18,13 +18,13 @@ PROGPATH_STATIC = $(O)/$(PROG)s
+ 
+ 
+ ifneq ($(CC), xlc)
+-CFLAGS_WARN_WALL = -Wall -Werror -Wextra
++CFLAGS_WARN_WALL = -Wall -Wextra
+ endif
+ 
+ # for object file
+ CFLAGS_BASE_LIST = -c
+ # CFLAGS_BASE_LIST = -S
+-CFLAGS_BASE = -O2 $(CFLAGS_BASE_LIST) $(CFLAGS_WARN_WALL) $(CFLAGS_WARN) \
++CFLAGS_BASE = $(CFLAGS_BASE_LIST) $(CFLAGS_WARN_WALL) $(CFLAGS_WARN) -D_GNU_SOURCE \
+  -DNDEBUG -D_REENTRANT -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE \
+  -fPIC
+ 
+@@ -192,7 +192,7 @@ all: $(O) $(PROGPATH) $(STATIC_TARGET)
+ $(O):
+ 	$(MY_MKDIR) $(O)
+ 
+-LFLAGS_ALL = -s $(MY_ARCH_2) $(LDFLAGS) $(LD_arch) $(OBJS) $(MY_LIBS) $(LIB2)
++LFLAGS_ALL = $(MY_ARCH_2) $(LDFLAGS) $(LD_arch) $(OBJS) $(MY_LIBS) $(LIB2)
+ $(PROGPATH): $(OBJS)
+ 	$(CXX) -o $(PROGPATH) $(LFLAGS_ALL)
+ 
diff --git a/tools/7z/patches/7-zip-musl.patch b/tools/7z/patches/7-zip-musl.patch
new file mode 100644
index 00000000000..cf3386e4de3
--- /dev/null
+++ b/tools/7z/patches/7-zip-musl.patch
@@ -0,0 +1,59 @@
+--- a/C/CpuArch.c
++++ b/C/CpuArch.c
+@@ -421,8 +421,6 @@ BoolInt CPU_IsSupported_AES (void) { ret
+ 
+ #ifdef USE_HWCAP
+ 
+-#include <asm/hwcap.h>
+-
+   #define MY_HWCAP_CHECK_FUNC_2(name1, name2) \
+   BoolInt CPU_IsSupported_ ## name1() { return (getauxval(AT_HWCAP)  & (HWCAP_  ## name2)) ? 1 : 0; }
+ 
+--- a/C/Threads.c
++++ b/C/Threads.c
+@@ -257,7 +257,7 @@ WRes Thread_Create_With_CpuSet(CThread *
+       */
+ 
+       // ret2 =
+-      pthread_attr_setaffinity_np(&attr, sizeof(*cpuSet), cpuSet);
++      //pthread_attr_setaffinity_np(&attr, sizeof(*cpuSet), cpuSet);
+       // if (ret2) ret = ret2;
+       #endif
+     }
+@@ -267,14 +267,12 @@ WRes Thread_Create_With_CpuSet(CThread *
+     if (!ret)
+     {
+       p->_created = 1;
+-      /*
+       if (cpuSet)
+       {
+         // ret2 =
+         pthread_setaffinity_np(p->_tid, sizeof(*cpuSet), cpuSet);
+         // if (ret2) ret = ret2;
+       }
+-      */
+     }
+   }
+   // ret2 =
+--- a/C/Threads.h
++++ b/C/Threads.h
+@@ -19,6 +19,7 @@
+ #endif
+ 
+ #include <pthread.h>
++#include <sched.h>
+ 
+ #endif
+ 
+--- a/CPP/Windows/SystemInfo.cpp
++++ b/CPP/Windows/SystemInfo.cpp
+@@ -36,9 +36,6 @@
+ #endif
+ */
+ 
+-#ifdef MY_CPU_ARM_OR_ARM64
+-#include <asm/hwcap.h>
+-#endif
+ #endif
+ 
+ #ifdef __linux__
-- 
2.30.2