diff -Nur deepin-reader-5.10.23/3rdparty/deepin-pdfium/src/src.pro deepin-reader-5.10.23-new/3rdparty/deepin-pdfium/src/src.pro
--- deepin-reader-5.10.23/3rdparty/deepin-pdfium/src/src.pro	2022-08-25 21:59:54.426159727 +0800
+++ deepin-reader-5.10.23-new/3rdparty/deepin-pdfium/src/src.pro	2022-08-25 22:02:11.897470888 +0800
@@ -46,6 +46,6 @@
     $$PWD/dpdfpage.cpp \
     $$PWD/dpdfannot.cpp
 
-target.path  = /usr/lib
+target.path  = $$LIB_INSTALL_DIR
 
 INSTALLS += target