biology/bifrost: Portability fixes

Tag as only for 64-bit platforms
Fix build on aarch64 (patch out -march=native)

Reported by:    pkg-fallout

biology/bifrost/Makefile

@@ -10,6 +10,9 @@ WWW=		https://github.com/pmelsted/bifrost
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+# Requires a 64-bit processor
+ONLY_FOR_ARCHS=	aarch64 amd64 powerpc64 powerpc64le riscv64
+
 USES=		cmake
 USE_GITHUB=	yes
 

biology/bifrost/files/patch-CMakeLists.txt

@@ -0,0 +1,11 @@
+--- CMakeLists.txt.orig	2023-07-16 13:25:06 UTC
++++ CMakeLists.txt
+@@ -20,8 +20,6 @@ if(COMPILATION_ARCH MATCHES "OFF")
+ 	message("Disabling native architecture compilation (including AVX2)")
+ else(COMPILATION_ARCH MATCHES "OFF")
+ 	message("Compilation architecture: ${COMPILATION_ARCH}")
+-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=${COMPILATION_ARCH}")
+-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=${COMPILATION_ARCH}")
+ endif(COMPILATION_ARCH MATCHES "OFF")
+
+ if(ENABLE_AVX2 MATCHES "OFF")