Merge branch 'upstream-LibArchive' into update-libarchive

* upstream-LibArchive:
  LibArchive 2022-02-09 (9147def1)

1 files changed, 41 insertions, 23 deletions

diff --git a/Utilities/cmlibarchive/CMakeLists.txt b/Utilities/cmlibarchive/CMakeLists.txt
index c2aa182..932279b 100644
--- a/Utilities/cmlibarchive/CMakeLists.txt
+++ b/Utilities/cmlibarchive/CMakeLists.txt
@@ -1,6 +1,9 @@
 #
 IF(0) # CMake handles policy settings in its own build.
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12 FATAL_ERROR)
+if(POLICY CMP0065)
+  cmake_policy(SET CMP0065 NEW) #3.4 don't use `-rdynamic` with executables
+endif()
 if(POLICY CMP0074)
   cmake_policy(SET CMP0074 NEW) #3.12.0 `find_package()`` uses ``<PackageName>_ROOT`` variables.
 endif()
@@ -81,7 +84,7 @@ math(EXPR INTERFACE_VERSION  "13 + ${_minor}")
 # ?? Should there be more here ??
 SET(SOVERSION "${INTERFACE_VERSION}")
 
-# Enalbe CMAKE_PUSH_CHECK_STATE() and CMAKE_POP_CHECK_STATE() macros
+# Enable CMAKE_PUSH_CHECK_STATE() and CMAKE_POP_CHECK_STATE() macros
 # saving and restoring the state of the variables.
 INCLUDE(${CMake_SOURCE_DIR}/Modules/CMakePushCheckState.cmake)
 
@@ -110,24 +113,9 @@ endif ()
 # Especially for early development, we want to be a little
 # aggressive about diagnosing build problems; this can get
 # relaxed somewhat in final shipping versions.
-IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR CMAKE_C_COMPILER_ID MATCHES "^LCC$")
-  SET(CMAKE_REQUIRED_FLAGS "-Wall -Wformat -Wformat-security")
-  #################################################################
-  # Set compile flags for all build types.
-  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security")
-  if (ENABLE_WERROR)
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
-  endif ()
-  #################################################################
-  # Set compile flags for debug build.
-  # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
-  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wextra")
-  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wunused")
-  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow")
-  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
-  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
-ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR CMAKE_C_COMPILER_ID MATCHES "^LCC$")
-IF (CMAKE_C_COMPILER_ID MATCHES "^Clang$")
+IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
+    CMAKE_C_COMPILER_ID MATCHES "^LCC$" OR
+    CMAKE_C_COMPILER_ID MATCHES "^Clang$")
   SET(CMAKE_REQUIRED_FLAGS "-Wall -Wformat -Wformat-security")
   #################################################################
   # Set compile flags for all build types.
@@ -144,7 +132,26 @@ IF (CMAKE_C_COMPILER_ID MATCHES "^Clang$")
   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow")
   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
-ENDIF (CMAKE_C_COMPILER_ID MATCHES "^Clang$")
+  # Ideally this will be a compile/link time check, yet there's no obvious way
+  # how considering how old our minimum required cmake version is. The official
+  # cmake.org side does not host the manual pages even. Normally we can use
+  # either of the following two, yet neither is supported as of 3.0.2
+  # - check_linker_flag - does not exist
+  # - try_compile - does not support linker flags
+  #
+  # The CI fails with this on MacOS
+  IF(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
+    # Place the functions and data into separate sections, allowing the linker
+    # to garbage collect the unused ones.
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
+    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
+    SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gc-sections")
+    # Printing the discarded section is "too much", so enable on demand.
+    #SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -Wl,--print-gc-sections")
+    #SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} -Wl,--print-gc-sections")
+  ENDIF(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
+ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
+       CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 IF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
   SET(CMAKE_C_COMPILER "xlc_r")
   SET(CMAKE_REQUIRED_FLAGS "-qflag=e:e -qformat=sec")
@@ -405,7 +412,7 @@ IF(WIN32 AND NOT CMAKE_CL_64 AND NOT CYGWIN)
   SET(__GNUWIN32PATH "C:/Program Files/GnuWin32")
 ENDIF(WIN32 AND NOT CMAKE_CL_64 AND NOT CYGWIN)
 IF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
-  # You have to add a path availabel DLL file into PATH environment variable.
+  # You have to add a path available DLL file into PATH environment variable.
   # Maybe DLL path is "C:/Program Files/GnuWin32/bin".
   # The zlib and the bzip2 Setup program have installed programs and DLLs into
   # "C:/Program Files/GnuWin32" by default.
@@ -642,7 +649,8 @@ IF(ZSTD_FOUND)
   CMAKE_PUSH_CHECK_STATE()
   SET(CMAKE_REQUIRED_LIBRARIES ${ZSTD_LIBRARY})
   SET(CMAKE_REQUIRED_INCLUDES ${ZSTD_INCLUDE_DIR})
-  CHECK_FUNCTION_EXISTS(ZSTD_compressStream HAVE_LIBZSTD)
+  CHECK_FUNCTION_EXISTS(ZSTD_decompressStream HAVE_LIBZSTD)
+  CHECK_FUNCTION_EXISTS(ZSTD_compressStream HAVE_LIBZSTD_COMPRESSOR)
   #
   # TODO: test for static library.
   #
@@ -1042,7 +1050,7 @@ MACRO(CHECK_ICONV LIB TRY_ICONV_CONST)
         CMAKE_C_COMPILER_ID MATCHES "^Clang$")
       #
       # During checking iconv proto type, we should use -Werror to avoid the
-      # success of iconv detection with a warnig which success is a miss
+      # success of iconv detection with a warning which success is a miss
       # detection. So this needs for all build mode(even it's a release mode).
       #
       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror")
@@ -1378,6 +1386,7 @@ CHECK_FUNCTION_EXISTS_GLIBC(lchflags HAVE_LCHFLAGS)
 CHECK_FUNCTION_EXISTS_GLIBC(lchmod HAVE_LCHMOD)
 CHECK_FUNCTION_EXISTS_GLIBC(lchown HAVE_LCHOWN)
 CHECK_FUNCTION_EXISTS_GLIBC(link HAVE_LINK)
+CHECK_FUNCTION_EXISTS_GLIBC(linkat HAVE_LINKAT)
 CHECK_FUNCTION_EXISTS_GLIBC(localtime_r HAVE_LOCALTIME_R)
 CHECK_FUNCTION_EXISTS_GLIBC(lstat HAVE_LSTAT)
 CHECK_FUNCTION_EXISTS_GLIBC(lutimes HAVE_LUTIMES)
@@ -1447,6 +1456,10 @@ CHECK_C_SOURCE_COMPILES(
   "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct xvfsconf v; return sizeof(v);}"
   HAVE_STRUCT_XVFSCONF)
 
+CHECK_C_SOURCE_COMPILES(
+  "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct statfs s; return sizeof(s);}"
+  HAVE_STRUCT_STATFS)
+
 # Make sure we have the POSIX version of readdir_r, not the
 # older 2-argument version.
 CHECK_C_SOURCE_COMPILES(
@@ -1510,9 +1523,14 @@ CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff
 CHECK_STRUCT_HAS_MEMBER("struct tm" __tm_gmtoff
     "time.h" HAVE_STRUCT_TM___TM_GMTOFF)
 
+IF(HAVE_STRUCT_STATFS)
 # Check for f_namemax in struct statfs
 CHECK_STRUCT_HAS_MEMBER("struct statfs" f_namemax
     "sys/param.h;sys/mount.h" HAVE_STRUCT_STATFS_F_NAMEMAX)
+# Check for f_iosize in struct statfs
+CHECK_STRUCT_HAS_MEMBER("struct statfs" f_iosize
+    "sys/param.h;sys/mount.h" HAVE_STRUCT_STATFS_F_IOSIZE)
+ENDIF(HAVE_STRUCT_STATFS)
 
 # Check for birthtime in struct stat
 CHECK_STRUCT_HAS_MEMBER("struct stat" st_birthtime