bug#50411: 28.0.50; emacs compilation

[Daniel Fleischer <daniel.fleischer@amobee.com>]

[-- Attachment #1: Type: text/plain, Size: 302 bytes --]

Eli Zaretskii [2021-09-19 Sun 08:40] wrote:

> Thanks, this LGTM, but could you also include in the entry the
> indications of the problem which this fixes?  PROBLEMS is supposed to
> be searched for error messages and other problematic indications users
> see when they build or use Emacs.

Attached.

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: Updated patch --]
[-- Type: text/x-patch, Size: 1318 bytes --]

From bf0fdd9ac6e1cc7b5b85dbe4977ec0fe6c58291f Mon Sep 17 00:00:00 2001
From: Daniel Fleischer <danflscr@gmail.com>
Date: Sun, 19 Sep 2021 00:17:49 +0300
Subject: [PATCH] Native compilation on macOS: libgccjit in path

* etc/PROBLEMS: libgccjit should be in LIBRARY_PATH; example code for
early initialization.
---
 etc/PROBLEMS | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index f90418798d..42d714bf1e 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -2671,6 +2671,24 @@ something like the following in your init file:
 
 (push "\\`-[^-]*-monaco-bold-" face-ignored-fonts)
 
+** Native Compilation on macOS
+
+Native complitation requires the libgccjit library to be installed and
+its path available to Emacs.  Errors such as:
+
+    libgccjit.so: error: error invoking gcc driver
+    Error: Internal native compiler error failed to compile
+
+indicate Emacs can't find the library in running time.  One can set
+the "LIBRARY_PATH" environment variable in the early initalization
+file; for example:
+
+(setenv "LIBRARY_PATH"
+  (string-join
+    '("/usr/local/opt/gcc/lib/gcc/11"
+      "/usr/local/opt/libgccjit/lib/gcc/11"
+      "/usr/local/opt/gcc/lib/gcc/11/gcc/x86_64-apple-darwin20/11.2.0") ":"))
+
 * Build-time problems
 
 ** Configuration
-- 
2.33.0


[-- Attachment #3: Type: text/plain, Size: 23 bytes --]


-- 

Daniel Fleischer