1 files changed, 39 insertions, 12 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 437570b..17e5a0c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,20 @@
+#
+# Copyright (c) 2014 Brent Cook
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 cmake_minimum_required (VERSION 3.16.4)
+
 if(MSVC)
         cmake_policy(SET CMP0091 NEW)
 endif()
@@ -72,10 +88,6 @@ endforeach()
 
 set(BUILD_NC true)
 
-if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-        add_definitions(-fno-common)
-endif()
-
 if(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
         add_definitions(-DHAVE_ATTRIBUTE__BOUNDED__)
         add_definitions(-DHAVE_ATTRIBUTE__DEAD__)
@@ -131,7 +143,7 @@ add_definitions(-D__END_HIDDEN_DECLS=)
 set(CMAKE_POSITION_INDEPENDENT_CODE true)
 
 if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
-        add_definitions(-Wno-pointer-sign)
+        add_compile_options($<$<COMPILE_LANGUAGE:C>:-Wno-pointer-sign>)
 endif()
 
 if(WIN32)
@@ -366,6 +378,16 @@ if(HAVE_NETINET_IP_H)
         add_definitions(-DHAVE_NETINET_IP_H)
 endif()
 
+check_include_files(resolv.h HAVE_RESOLV_H)
+if(HAVE_RESOLV_H)
+        add_definitions(-DHAVE_RESOLV_H)
+endif()
+
+check_include_files(arpa/nameser.h HAVE_ARPA_NAMESER_H)
+if(HAVE_ARPA_NAMESER_H)
+        add_definitions(-DHAVE_ARPA_NAMESER_H)
+endif()
+
 # This isn't ready for universal binaries yet, since we do conditional
 # compilation based on the architecture, but this makes cross compiling for a
 # single architecture work on macOS at least.
@@ -375,20 +397,27 @@ if(APPLE AND (NOT CMAKE_OSX_ARCHITECTURES STREQUAL ""))
         set(CMAKE_SYSTEM_PROCESSOR "${CMAKE_OSX_ARCHITECTURES}")
 endif()
 
+# CMAKE_SYSTEM_PROCESSOR is not consistently set to the target architecture.
+# https://cmake.org/cmake/help/latest/variable/CMAKE_SYSTEM_PROCESSOR.html
+if (WIN32 AND (NOT CMAKE_GENERATOR_PLATFORM STREQUAL ""))
+        message("CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
+        message("CMAKE_GENERATOR_PLATFORM: ${CMAKE_GENERATOR_PLATFORM}")
+        set(CMAKE_SYSTEM_PROCESSOR "${CMAKE_GENERATOR_PLATFORM}")
+endif()
+
 if(CMAKE_SYSTEM_PROCESSOR MATCHES "(aarch64|arm64|ARM64)")
         set(HOST_AARCH64 true)
-        if(WIN32)
-                set(ENABLE_ASM false)
-        endif()
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm")
         set(HOST_ARM true)
 elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND CMAKE_SYSTEM_PROCESSOR MATCHES "i386")
         set(HOST_X86_64 true)
-elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64|amd64|AMD64)")
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64|x64|amd64|AMD64)")
         set(HOST_X86_64 true)
-elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(i[3-6]86|[xX]86)")
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(i[3-6]86|[xX]86|Win32)")
         set(ENABLE_ASM false)
         set(HOST_I386 true)
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "loongarch64")
+        set(HOST_LOONGARCH64 true)
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "mips64")
         set(HOST_MIPS64 true)
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "mips")
@@ -409,8 +438,6 @@ if(ENABLE_ASM)
         if(CMAKE_C_COMPILER_ABI STREQUAL "ELF")
                 if(HOST_X86_64)
                         set(HOST_ASM_ELF_X86_64 true)
-                elseif(HOST_ARM)
-                        set(HOST_ASM_ELF_ARMV4 true)
                 elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND HOST_I386)
                         set(HOST_ASM_ELF_X86_64 true)
                 endif()