new post: llvm targets, monero add qr

gmi/gopher_collections.gmi

@@ -1,7 +1,6 @@
-  _____          _      _
+     o
- / ___/__ __ _  (_)__  (_)
+    /\--)
-/ (_ / -_)  ' \/ / _ \/ /
+   /\  gem
-\___/\__/_/_/_/_/_//_/_/
 
 # Gopher/Gemini collections
 A quiet place in the internet other than HyperText Machine Learning

index.html

@@ -32,7 +32,7 @@
       (feed "<a href=https://dongdigua.github.io/feed.xml>feed.xml</a>")
       (github "<a href=https://github.com/dongdigua>@dongdigua</a>")
       (bilibili "<a href=https://space.bilibili.com/489732092>董地瓜</a>")
-      (payment "<a href=https://dongdigua.github.io/xmr.txt>monero</a>")
+      (payment "<a href=https://dongdigua.github.io/xmr>Monero</a>")
       (pgp "<a href=https://dongdigua.github.io/pgpkey.txt>0x56CEE157C9F5334F</a>")
       (interests
        '("computer science"

org/gentoo_llvm_targets.org

@@ -0,0 +1,44 @@
+#+TITLE: Gentoo LLVM_TARGETS not Working?
+#+DATE: <2022-10-29 六>
+#+OPTIONS: toc:nil
+
+Recently, I would like to test switching from =gcc= to =clang= on my Gentoo VM.
+Because if so, I can install =Rust= and =Zig= from source
+without worrying about adding the HUGE =clang= dependency that won't be used by other packages.
+Later I will remove =gcc= :)
+
+* problem
+First I want to make [[https://llvm.org][LLVM]] not targeting too many platform, but changing =LLVM_TARGETS= don't work
+#+BEGIN_SRC shell
+  [ebuild  N     ] sys-devel/llvm-15.0.3:15::gentoo  USE="binutils-plugin libffi
+  ncurses -debug -doc -exegesis -libedit -test -verify-sig -xar -xml -z3 -zstd"
+  LLVM_TARGETS="(AArch64) (AMDGPU) (ARM) (AVR) (BPF) (Hexagon) (Lanai) (MSP430)
+  (Mips) (NVPTX) (PowerPC) (RISCV) (Sparc) (SystemZ) (VE) (WebAssembly) (X86)
+  (XCore) (-ARC) (-CSKY) (-DirectX) (-LoongArch) (-M68k) (-SPIRV)" 241 KiB    
+#+END_SRC
+
+* and I found [[https://forums.gentoo.org/viewtopic.php?p=8694331][[solved] LLVM_TARGETS not respected?]](Mar 2022) on gentoo forum
+
+It seems that global =LLVM_TARGETS= setting is not respected,
+and flags such as =llvm_targets_AArch64=, =llvm_targets_ARM=, are no longer there.
+They're now forced by default as a precaution.
+
+
+* /*solution*/
+** add something like =*/* -llvm_targets_AArch64= into =/etc/portage/profile/package.use.force=
+I excluded all targets exept for X86, but still 3 left: AMDGPU, BPF, NVPTX
+** so I also add =sys-devel/llvm -llvm_targets_AMDGPU -llvm_targets_BPF -llvm_targets_NVPTX= in =/etc/portage/package.use/=
+** and don't forget to add that three excluder to clang or other compiler that uses llvm
+
+
+* finally I got this:
+#+BEGIN_SRC shell
+  [ebuild  N     ] sys-devel/llvm-15.0.3:15::gentoo  USE="binutils-plugin libffi
+  ncurses -debug -doc -exegesis -libedit -test -verify-sig -xar -xml -z3 -zstd"
+  LLVM_TARGETS="(X86) -AArch64 -AMDGPU (-ARC) -ARM -AVR -BPF (-CSKY) (-DirectX)
+  -Hexagon -Lanai (-LoongArch) (-M68k) -MSP430 -Mips -NVPTX -PowerPC -RISCV
+  (-SPIRV) -Sparc -SystemZ -VE -WebAssembly -XCore" 241 KiB
+#+END_SRC
+
+in the end, [[https://wiki.gentoo.org/wiki/Gentoo_Cheat_Sheet][Gentoo cheatsheet]] and [[https://wiki.gentoo.org/wiki/Clang][Gentoo Wiki: Clang]] could be useful.
+

org/publish_config.el

@@ -66,7 +66,7 @@
       "feed.xml"
       "./../"
       "https://dongdigua.github.io"
-      (delete "index.html" (directory-files "./../" nil ".*\.html$"))
+      (delete "xmr.html" (delete "index.html" (directory-files "./../" nil ".*\.html$")))
       :title "dongdigua's blog"
       :description "Blog!"
       :builder 'webfeeder-make-rss)

posts.md

@@ -1,5 +1,6 @@
 ## Table of Contents
 ### Posts (sorted by time)
+[Gentoo LLVM\_TARGETS not Working?](gentoo_llvm_targets)<br>
 [CentOS/Fedora 不同的配置默认都安装了什么软件](anaconda_kickstarts)<br>
 [build a nixos live image](nixos)<br>
 [moonboos, 懂的都懂](moonboos)<br>

xmr.html

@@ -0,0 +1,2 @@
+<center><img src="./images/monero_request.png"/></center>
+<center>47LjRRyNYWKf1W5NPmfgZXdZGnGXv4QZRjEnZJbrRRJkAbgikXJGecCNJiP2rny6SR3SSizTVYKJKFdhdKEf5scVMc9Zk1R</center>

xmr.txt

@@ -1 +0,0 @@
-47LjRRyNYWKf1W5NPmfgZXdZGnGXv4QZRjEnZJbrRRJkAbgikXJGecCNJiP2rny6SR3SSizTVYKJKFdhdKEf5scVMc9Zk1R