From ce491008e72778104c231449fea1d7aed24d613b Mon Sep 17 00:00:00 2001
From: exurd <7785022+exurd@users.noreply.github.com>
Date: Wed, 1 Apr 2026 19:32:48 +0100
Subject: [PATCH] python-build: advise user with no c compiler (#3294)

this checks if "no acceptable C compiler found" is in the last 10 lines of the log, and asks if the user has correctly installed the build dependencies.
---
 plugins/python-build/bin/python-build | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/plugins/python-build/bin/python-build b/plugins/python-build/bin/python-build
index 36b6f2e2..4d9b054e 100755
--- a/plugins/python-build/bin/python-build
+++ b/plugins/python-build/bin/python-build
@@ -202,7 +202,14 @@ build_failed() {
       colorize 33 "Results logged to ${LOG_PATH}"
       printf "\n\n"
       echo "Last 10 log lines:"
-      tail -n 10 "$LOG_PATH"
+      TAIL=`tail -n 10 "$LOG_PATH"`
+      echo "$TAIL"
+      if echo "$TAIL" | grep -q "no acceptable C compiler found"; then
+        printf "\n"
+        echo "Are the build dependencies for Python correctly installed?"
+        echo "Please consult to the Wiki page for more info."
+        echo "https://github.com/pyenv/pyenv/wiki#suggested-build-environment"
+      fi
     fi
   } >&3
   exit 1