--- gdal-2.4.0/GNUmakefile.orig	2018-12-14 22:34:19.000000000 +0100
+++ gdal-2.4.0/GNUmakefile	2018-12-29 19:15:29.433390410 +0100
@@ -314,6 +314,7 @@
 	rm -f gdal.pc
 	echo 'CONFIG_VERSION='`cat ./VERSION`'' >> gdal.pc
 	echo 'CONFIG_INST_PREFIX=$(INST_PREFIX)' >> gdal.pc
+	echo 'CONFIG_INST_LIBDIR=$(INST_LIB)' >> gdal.pc
 	echo 'CONFIG_INST_LIBS=$(CONFIG_LIBS_INS)' >> gdal.pc
 	echo 'CONFIG_INST_CFLAGS=-I$(INST_INCLUDE)' >> gdal.pc
 	echo 'CONFIG_INST_DATA=$(INST_DATA)' >> gdal.pc
--- gdal-2.4.0/gdal.pc.in.orig	2018-12-14 22:34:20.000000000 +0100
+++ gdal-2.4.0/gdal.pc.in	2018-12-29 19:15:47.330056870 +0100
@@ -1,6 +1,6 @@
 prefix=${CONFIG_INST_PREFIX}
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=${CONFIG_INST_LIBDIR}
 includedir=${exec_prefix}/include
 datadir=${CONFIG_INST_DATA}