From d58fc7889f5d2e8b6f12117e60181efeb7be1a40 Mon Sep 17 00:00:00 2001
From: Daniil-Gusev <[email protected]>
Date: Sat, 1 Aug 2026 22:50:41 +0300
Subject: [PATCH v2] contrib: Allow overriding download_prerequisites base URL
Add support for GCC_PREREQUISITES_BASE_URL, so packages can be
fetched from a local mirror instead of gcc.gnu.org every time.
contrib/ChangeLog:
* download_prerequisites (base_url): Allow overriding via the
GCC_PREREQUISITES_BASE_URL environment variable. Document it
in --help output.
---
v2:
* accept the URL with or without a trailing slash (strip, then re-add)
* shortened --help wording per your suggestion
Not sure if you meant literally showing the current value in brackets,
or just marking it optional - went with the former. Also wrapped it to
a second line to stay under 80 columns.
contrib/download_prerequisites | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/contrib/download_prerequisites b/contrib/download_prerequisites
index 2e6693a2aa6..68a384b96be 100755
--- a/contrib/download_prerequisites
+++ b/contrib/download_prerequisites
@@ -33,7 +33,8 @@ mpc='mpc-1.3.1.tar.gz'
isl='isl-0.24.tar.bz2'
gettext='gettext-1.0.tar.gz'
-base_url='https://gcc.gnu.org/pub/gcc/infrastructure/'
+base_url="${GCC_PREREQUISITES_BASE_URL:-https://gcc.gnu.org/pub/gcc/infrastructure/}";
+base_url="${base_url%/}/"
echo_archives() {
echo "${gettext}"
@@ -86,6 +87,11 @@ The following options are available:
--only-gettext inhibit downloading any package but gettext
--help show this text and exit
--version show version information and exit
+
+Environment variables:
+
+ GCC_PREREQUISITES_BASE_URL URL to download from
+ [${base_url}]
"
versiontext="${program} ${version}
--
2.55.0
