From 6f6cd356a2cefdf257c88b67a61691b49a619803 Mon Sep 17 00:00:00 2001
From: Worker Agent <worker@diff-eq-handbook.local>
Date: Thu, 4 Jun 2026 19:41:43 -0500
Subject: [PATCH] fix: stable build with nomenclature, graphicx, 3-pass
 compilation

---
 Makefile     | 10 +++++-----
 preamble.tex |  5 +++++
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index f1b64f7..4cfd423 100644
--- a/Makefile
+++ b/Makefile
@@ -8,14 +8,14 @@ BIBTEX = bibtex
 
 .PHONY: all quick clean view distclean
 
-## all: Full build (pdflatex -> bibtex if needed -> pdflatex x2)
+## all: Full build with nomenclature indexing and 3-pass pdflatex
 all:
 	$(TEX) -interaction=nonstopmode $(TARGET).tex
-	@if [ -f $(TARGET).blg ] || grep -ql '\\bibliography\|\\bibliographystyle' $(TARGET).tex; then \
-		$(BIBTEX) $(TARGET); \
-		$(TEX) -interaction=nonstopmode $(TARGET).tex; \
-		$(TEX) -interaction=nonstopmode $(TARGET).tex; \
+	@if [ -f $(TARGET).nlo ]; then \
+		makeindex -s nomencl.ist -o $(TARGET).nls $(TARGET).nlo; \
 	fi
+	$(TEX) -interaction=nonstopmode $(TARGET).tex
+	$(TEX) -interaction=nonstopmode $(TARGET).tex
 
 ## quick: Single pdflatex pass for rapid iteration
 quick:
diff --git a/preamble.tex b/preamble.tex
index fcd04e4..1173ea5 100644
--- a/preamble.tex
+++ b/preamble.tex
@@ -41,6 +41,11 @@
 % ---------------------------------------------------------------------------
 \usepackage{booktabs}
 
+% ---------------------------------------------------------------------------
+% Graphics
+% ---------------------------------------------------------------------------
+\usepackage{graphicx}
+
 % ---------------------------------------------------------------------------
 % TikZ
 % ---------------------------------------------------------------------------