1 files changed, 61 insertions, 0 deletions
diff --git a/net-p2p/monero/files/monero-9999-build-remove-mcpu-march-mtune.patch b/net-p2p/monero/files/monero-9999-build-remove-mcpu-march-mtune.patch
new file mode 100644
index 00000000..7c299d1d
--- /dev/null
+++ b/net-p2p/monero/files/monero-9999-build-remove-mcpu-march-mtune.patch
@@ -0,0 +1,61 @@
+From 67d346887218546c8d3c232136329be3f9a112dd Mon Sep 17 00:00:00 2001
+From: Bertrand Jacquin <bertrand@jacquin.bzh>
+Date: Tue, 9 Apr 2024 21:47:47 +0100
+Subject: [PATCH] build: remove mcpu/march/mtune
+
+cc1plus: warning: switch '-mcpu=neoverse-n1+crc+crypto+ssbs' conflicts with '-march=armv8-a+crypto' switch
+---
+ CMakeLists.txt | 33 +--------------------------------
+ 1 file changed, 1 insertion(+), 32 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 6de0b2a647f1..cc9c9bdc621f 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -717,32 +717,6 @@ if(MSVC)
+ else()
+   include(TestCXXAcceptsFlag)
+   message(STATUS "Building on ${CMAKE_SYSTEM_PROCESSOR} for ${ARCH}")
+-  if(ARCH STREQUAL "default")
+-    set(ARCH_FLAG "")
+-  elseif(PPC64LE)
+-    set(ARCH_FLAG "-mcpu=power8")
+-  elseif(PPC64)
+-    set(ARCH_FLAG "-mcpu=970")
+-  elseif(PPC)
+-    set(ARCH_FLAG "-mcpu=7400")
+-  elseif(IOS AND ARCH STREQUAL "arm64")
+-    message(STATUS "IOS: Changing arch from arm64 to armv8")
+-    set(ARCH_FLAG "-march=armv8")
+-  else()
+-    set(ARCH_FLAG "-march=${ARCH}")
+-    if(ARCH STREQUAL "native")
+-      check_c_compiler_flag(-march=native CC_SUPPORTS_MARCH_NATIVE)
+-      if (NOT CC_SUPPORTS_MARCH_NATIVE)
+-        check_c_compiler_flag(-mtune=native CC_SUPPORTS_MTUNE_NATIVE)
+-        if (CC_SUPPORTS_MTUNE_NATIVE)
+-          set(ARCH_FLAG "-mtune=${ARCH}")
+-        else()
+-          set(ARCH_FLAG "")
+-        endif()
+-      endif()
+-    endif()
+-  endif()
+-
+   option(NO_AES "Explicitly disable AES support" ${NO_AES})
+ 
+   if(NO_AES)
+@@ -765,12 +739,7 @@ else()
+     message(STATUS "AES support not available on ARMv7")
+   elseif(ARM8)
+     CHECK_CXX_ACCEPTS_FLAG("-march=${ARCH}+crypto" ARCH_PLUS_CRYPTO)
+-    if(ARCH_PLUS_CRYPTO)
+-      message(STATUS "Crypto extensions enabled for ARMv8")
+-      set(ARCH_FLAG "-march=${ARCH}+crypto")
+-    else()
+-      message(STATUS "Crypto extensions unavailable on your ARMv8 device")
+-    endif()
++    message(STATUS "${ARCH_PLUS_CRYPTO}")
+   else()
+     message(STATUS "AES support disabled")
+   endif()