From 9aa40838dc054dcb70d07028e1f5cd22eb4eddad Mon Sep 17 00:00:00 2001
From: Brad Aagaard <baagaard@usgs.gov>
Date: Sat, 15 Aug 2026 14:33:27 -0600
Subject: [PATCH] FIX: Add use of build isolation flags for markup/pygments.

---
 markup/pygments/Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/markup/pygments/Makefile.am b/markup/pygments/Makefile.am
index a0f6c21..c17157f 100644
--- a/markup/pygments/Makefile.am
+++ b/markup/pygments/Makefile.am
@@ -1,5 +1,5 @@
 install-exec-local:
-	$(PYTHON) -m pip install $(srcdir)
+	$(PYTHON) -m pip install --prefix=$(prefix) $(PIP_ISOLATION_FLAG) $(srcdir)
 
 EXTRA_DIST = \
     pyrejournal_lexer.py \