From 411b4cc5d0941f2ea7e5e9f22f3df2991d2b6588 Mon Sep 17 00:00:00 2001
From: John Vogel <jvogel4@stny.rr.com>
Date: Fri, 8 Sep 2023 21:31:28 -0400
Subject: [PATCH 2/2] more usable cmake builds

---
 CMakeLists.txt | 50 ++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 46 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 766b546..43e2515 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,50 @@
 cmake_minimum_required(VERSION 3.5.1)
 
-project(xdiff VERSION "0.1" LANGUAGES C)
+project(xdiff C)
 
-file(GLOB SRC "*.c" "*.h")
-list(SORT SRC)
+set(XDIFF_MAJOR_VERSION 2)
+set(XDIFF_MINOR_VERSION 40)
+set(XDIFF_PATCH_VERSION 1)
 
-add_library(xdiff OBJECT ${SRC})
+set(XDIFF_VERSION
+	${XDIFF_MAJOR_VERSION}.${XDIFF_MINOR_VERSION}.${XDIFF_PATCH_VERSION})
+
+set(xdiff_LIB_SRCS
+	xdiffi.c
+	xemit.c
+	xhistogram.c
+	xmerge.c
+	xpatience.c
+	xprepare.c
+	xutils.c)
+
+option(BUILD_SHARED_LIBS "build a shared library" ON)
+option(BUILD_STATIC_LIBS "build a static library" ON)
+
+add_library(xdiff ${xdiff_LIB_SRCS})
+
+install(FILES
+	git-xdiff.h
+	xdiff.h
+	xdiffi.h
+	xemit.h
+	xinclude.h
+	xmacros.h
+	xprepare.h
+	xtypes.h
+	xutils.h
+	DESTINATION include/xdiff)
+#	DESTINATION ${CMAKE_INSTALL_DIR}/include/xdiff)
+
+if (BUILD_SHARED_LIBS)
+	set_target_properties(xdiff PROPERTIES C_VISIBILITY_PRESET hidden)
+else (BUILD_SHARED_LIBS)
+	target_compile_options(xdiff PUBLIC -DXDIFF_STATIC_DEFINE)
+endif (BUILD_SHARED_LIBS)
+
+set_target_properties(xdiff PROPERTIES
+	VERSION ${XDIFF_VERSION}
+	SOVERSION ${XDIFF_MAJOR_VERSION}.${XDIFF_MINOR_VERSION})
+install(TARGETS xdiff ${INSTALL_TARGETS_DEFAULT_ARGS}
+	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
-- 
2.42.0