From 50f2ff0be52b0ced5c3d9c5c082ae8d865304544 Mon Sep 17 00:00:00 2001
From: Slaven Rezic <slaven@rezic.de>
Date: Thu, 3 Apr 2025 21:59:10 +0200
Subject: [PATCH] allow building with older gcc versions (GH#15)
---
alienfile | 30 ++++++++++++++++++++++++++----
1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/alienfile b/alienfile
index 00e9081..067e536 100644
--- a/alienfile
+++ b/alienfile
@@ -115,10 +115,24 @@ share {
start_url 'https://download.osgeo.org/proj/';
#start_url "file://$base_dir"; # debug
- plugin Download => (
- filter => qr/^proj-([0-9\.]+)\.tar\.gz$/,
- version => qr/^proj-([0-9\.]+)\.tar\.gz$/,
- );
+
+ my $gcc_version = detect_gcc_version();
+ if ($gcc_version && $gcc_version < 7) {
+ plugin Download => (
+ filter => qr/^proj-8\.2\.1\.tar\.gz$/,
+ version => qr/^proj-([0-9\.]+)\.tar\.gz$/,
+ );
+ } elsif ($gcc_version && $gcc_version < 12) {
+ plugin Download => (
+ filter => qr/^proj-9\.5\.1\.tar\.gz$/,
+ version => qr/^proj-([0-9\.]+)\.tar\.gz$/,
+ );
+ } else {
+ plugin Download => (
+ filter => qr/^proj-([0-9\.]+)\.tar\.gz$/,
+ version => qr/^proj-([0-9\.]+)\.tar\.gz$/,
+ );
+ }
my $proj_version = get_proj_version() // 'not yet defined';
say "Downloaded proj version is $proj_version";
@@ -505,3 +519,11 @@ sub get_alien_state_hash {
return $h;
}
+sub detect_gcc_version {
+ my $gcc_output = `gcc --version`;
+ if ($gcc_output =~ /gcc\s+\(.*?\)\s+(\d+)\.(\d+)\.(\d+)/) {
+ my ($major, $minor, $patch) = ($1, $2, $3);
+ return "$major.$minor"; # Return major.minor as a floating-point number
+ }
+ return undef; # GCC not found or failed to parse version
+}
--
2.11.0