diff -Naur orig/libarchive-3.8.7/CMakeLists.txt mod/libarchive-3.8.7/CMakeLists.txt
--- a/CMakeLists.txt	2026-04-13 07:56:14.000000000 -0500
+++ b/CMakeLists.txt	2026-05-26 02:18:05.649234385 -0500
@@ -369,7 +369,7 @@
   IF(ENABLE_INSTALL)
     FOREACH (_man ${ARGV})
       STRING(REGEX REPLACE "^.+[.]([1-9])" "\\1" _mansect ${_man})
-      INSTALL(FILES ${_man} DESTINATION "share/man/man${_mansect}")
+      INSTALL(FILES ${_man} DESTINATION "${CMAKE_INSTALL_MANDIR}/man${_mansect}")
     ENDFOREACH (_man)
   ENDIF(ENABLE_INSTALL)
 ENDMACRO (INSTALL_MAN __mans)
@@ -2220,7 +2220,7 @@
   #
   IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf)
     INSTALL(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf
-            DESTINATION share/man
+            DESTINATION "${CMAKE_INSTALL_MANDIR}"
             FILES_MATCHING PATTERN "*.pdf"
     )
   ENDIF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf)
diff -Naur orig/libarchive-3.8.7/build/cmake/CreatePkgConfigFile.cmake mod/libarchive-3.8.7/build/cmake/CreatePkgConfigFile.cmake
--- a/build/cmake/CreatePkgConfigFile.cmake	2025-11-17 16:04:25.000000000 -0600
+++ b/build/cmake/CreatePkgConfigFile.cmake	2026-05-26 02:18:05.649234385 -0500
@@ -4,8 +4,16 @@
 # Set the required variables (we use the same input file as autotools)
 SET(prefix ${CMAKE_INSTALL_PREFIX})
 SET(exec_prefix \${prefix})
-SET(libdir \${exec_prefix}/lib)
-SET(includedir \${prefix}/include)
+IF(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
+	SET(libdir ${CMAKE_INSTALL_LIBDIR})
+ELSE()
+	SET(libdir \${exec_prefix}/${CMAKE_INSTALL_LIBDIR})
+ENDIF()
+IF(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
+	SET(includedir ${CMAKE_INSTALL_INCLUDEDIR})
+ELSE()
+	SET(includedir \${prefix}/${CMAKE_INSTALL_INCLUDEDIR})
+ENDIF()
 # Now, this is not particularly pretty, nor is it terribly accurate...
 # Loop over all our additional libs
 FOREACH(mylib ${ADDITIONAL_LIBS})
diff -Naur orig/libarchive-3.8.7/cat/CMakeLists.txt mod/libarchive-3.8.7/cat/CMakeLists.txt
--- a/cat/CMakeLists.txt	2025-11-17 16:04:25.000000000 -0600
+++ b/cat/CMakeLists.txt	2026-05-26 02:18:05.649234385 -0500
@@ -34,7 +34,7 @@
 
   # Installation rules
   IF(ENABLE_INSTALL)
-    INSTALL(TARGETS bsdcat RUNTIME DESTINATION bin)
+    INSTALL(TARGETS bsdcat RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
     INSTALL_MAN(${bsdcat_MANS})
   ENDIF(ENABLE_INSTALL)
 ENDIF(ENABLE_CAT)
diff -Naur orig/libarchive-3.8.7/cpio/CMakeLists.txt mod/libarchive-3.8.7/cpio/CMakeLists.txt
--- a/cpio/CMakeLists.txt	2026-04-13 07:56:14.000000000 -0500
+++ b/cpio/CMakeLists.txt	2026-05-26 02:18:05.649234385 -0500
@@ -45,7 +45,7 @@
 
   # Installation rules
   IF(ENABLE_INSTALL)
-    INSTALL(TARGETS bsdcpio RUNTIME DESTINATION bin)
+    INSTALL(TARGETS bsdcpio RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
     INSTALL_MAN(${bsdcpio_MANS})
   ENDIF(ENABLE_INSTALL)
 
diff -Naur orig/libarchive-3.8.7/libarchive/CMakeLists.txt mod/libarchive-3.8.7/libarchive/CMakeLists.txt
--- a/libarchive/CMakeLists.txt	2025-11-17 16:04:25.000000000 -0600
+++ b/libarchive/CMakeLists.txt	2026-05-26 02:18:05.650234411 -0500
@@ -277,16 +277,16 @@
   # How to install the libraries
   IF(BUILD_SHARED_LIBS)
     INSTALL(TARGETS archive
-            RUNTIME DESTINATION bin
+            RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
             LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
             ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
   ENDIF(BUILD_SHARED_LIBS)
   INSTALL(TARGETS archive_static
-          RUNTIME DESTINATION bin
+          RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
           LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
           ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
   INSTALL_MAN(${libarchive_MANS})
-  INSTALL(FILES ${include_HEADERS} DESTINATION include)
+  INSTALL(FILES ${include_HEADERS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
 ENDIF()
 
 add_subdirectory(test)
diff -Naur orig/libarchive-3.8.7/tar/CMakeLists.txt mod/libarchive-3.8.7/tar/CMakeLists.txt
--- a/tar/CMakeLists.txt	2025-11-17 16:04:25.000000000 -0600
+++ b/tar/CMakeLists.txt	2026-05-26 02:18:05.650234411 -0500
@@ -47,7 +47,7 @@
 
   # Installation rules
   IF(ENABLE_INSTALL)
-    INSTALL(TARGETS bsdtar RUNTIME DESTINATION bin)
+    INSTALL(TARGETS bsdtar RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
     INSTALL_MAN(${bsdtar_MANS})
   ENDIF(ENABLE_INSTALL)
 ENDIF(ENABLE_TAR)
diff -Naur orig/libarchive-3.8.7/unzip/CMakeLists.txt mod/libarchive-3.8.7/unzip/CMakeLists.txt
--- a/unzip/CMakeLists.txt	2026-04-13 07:56:14.000000000 -0500
+++ b/unzip/CMakeLists.txt	2026-05-26 02:18:05.650234411 -0500
@@ -39,7 +39,7 @@
 
   # Installation rules
   IF(ENABLE_INSTALL)
-    INSTALL(TARGETS bsdunzip RUNTIME DESTINATION bin)
+    INSTALL(TARGETS bsdunzip RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
     INSTALL_MAN(${bsdunzip_MANS})
   ENDIF(ENABLE_INSTALL)
 ENDIF(ENABLE_UNZIP)