From 8d47e560100348b1385e2e2700a5e4fd426867f6 Mon Sep 17 00:00:00 2001
From: DubbleClick <m@pyc.ac>
Date: Tue, 1 Jul 2025 18:22:05 +0700
Subject: [PATCH] sanity check after toolset init

---
 src/SPC/builder/linux/SystemUtil.php   |  7 +++++--
 src/SPC/toolchain/ToolchainManager.php | 10 +++++++++-
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/SPC/builder/linux/SystemUtil.php b/src/SPC/builder/linux/SystemUtil.php
index 6c1037ba..0d808f9d 100644
--- a/src/SPC/builder/linux/SystemUtil.php
+++ b/src/SPC/builder/linux/SystemUtil.php
@@ -8,6 +8,7 @@ use SPC\builder\traits\UnixSystemUtilTrait;
 use SPC\exception\RuntimeException;
 use SPC\toolchain\ToolchainManager;
 use SPC\toolchain\ZigToolchain;
+use SPC\util\SPCTarget;
 
 class SystemUtil
 {
@@ -215,10 +216,12 @@ class SystemUtil
             return null;
         }
         if ($libc === 'musl') {
-            if (self::isMuslDist()) {
+            if (SPCTarget::getLibc() === 'musl') {
                 $result = shell()->execWithResult('ldd 2>&1', false);
-            } else {
+            } elseif (is_file('/usr/local/musl/lib/libc.so')) {
                 $result = shell()->execWithResult('/usr/local/musl/lib/libc.so 2>&1', false);
+            } else {
+                $result = shell()->execWithResult('/lib/ld-musl-x86_64.so.1 2>&1', false);
             }
             // Match Version * line
             // match ldd version: "Version 1.2.3" match 1.2.3
diff --git a/src/SPC/toolchain/ToolchainManager.php b/src/SPC/toolchain/ToolchainManager.php
index 8192175b..bb5fd08e 100644
--- a/src/SPC/toolchain/ToolchainManager.php
+++ b/src/SPC/toolchain/ToolchainManager.php
@@ -5,8 +5,10 @@ declare(strict_types=1);
 namespace SPC\toolchain;
 
 use SPC\builder\linux\SystemUtil;
+use SPC\exception\RuntimeException;
 use SPC\exception\WrongUsageException;
 use SPC\util\GlobalEnvManager;
+use SPC\util\SPCTarget;
 
 class ToolchainManager
 {
@@ -47,7 +49,13 @@ class ToolchainManager
     public static function afterInitToolchain(): void
     {
         if (!getenv('SPC_TOOLCHAIN')) {
-            throw new WrongUsageException('SPC_TOOLCHAIN not set');
+            throw new WrongUsageException('SPC_TOOLCHAIN was not properly set. Please contact the developers.');
+        }
+        if (SPCTarget::getLibc() === 'musl' && !SPCTarget::isStatic() && !file_exists('/lib/ld-musl-x86_64.so.1')) {
+            throw new RuntimeException('You are linking against musl libc dynamically, but musl libc is not installed. Please install it with `sudo dnf install musl-libc` or `sudo apt install musl`');
+        }
+        if (SPCTarget::getLibc() === 'glibc' && SystemUtil::isMuslDist()) {
+            throw new RuntimeException('You are linking against glibc libc dynamically, which is only supported on glibc distros.');
         }
         $toolchain = getenv('SPC_TOOLCHAIN');
         /* @var ToolchainInterface $toolchain */