diff --git a/cinelerra-5.1/thirdparty/Makefile b/cinelerra-5.1/thirdparty/Makefile
index 5315237..334eb08 100644
--- a/cinelerra-5.1/thirdparty/Makefile
+++ b/cinelerra-5.1/thirdparty/Makefile
@@ -195,9 +195,6 @@ audiofile.mak_params?=LIBS="-lm -lstdc++"
 flac.cfg_params?= --enable-shared=no
 flac.cflags?="$(call inc_path,libogg) $(call ld_path,libogg,src/.libs)"
 giflib.cfg_params=echo "exec true" > ./configure; chmod +x ./configure;
-ilmbase.cfg_vars= CFLAGS+=" -Wno-narrowing" CXXFLAGS+=" -Wno-narrowing"
-ilmbase.cfg_params?=--prefix=$(call bld_path,ilmbase,usr)
-ilmbase.mak_params?=; $(MAKE) -C ilmbase* install; cd $(call bld_path,ilmbase); ln -sf lib64 usr/lib
 lame.cfg_vars?= CFLAGS+=" -O"
 lame.cfg_params?=--enable-shared=no
 lame.mak_params?= ; cd $(call bld_path,lame,include); ln -sf . lame
@@ -242,8 +239,8 @@ openjpeg.cfg_vars?=$(call cmake_config,.)
 openjpeg.mak_params?= ; cd $(call bld_path,openjpeg,src/lib/openjp2); ln -sf . openjpeg-2.1
 opencv.cfg_vars?=$(call cmake_config,.)
 opencv.cfg_params?= -DBUILD_SHARED_LIBS:BOOL=OFF
-openexr.cfg_vars?=LD_LIBRARY_PATH=$(call bld_path,ilmbase,usr/lib)
-openexr.cfg_params?=--enable-shared=no --with-ilmbase-prefix=$(call bld_path,ilmbase,usr)
+openexr.cfg_vars?=LD_LIBRARY_PATH=$(call bld_path,openexr,usr/lib) chmod +x ./configure;
+openexr.cfg_params?=`realpath $(call bld_path,openexr,usr)`
 speech_tools.mak_params?=-j1
 tiff.cfg_vars+=LIBS+=" -lpthread"
 tiff.cfg_params+= --enable-shared=no --disable-zstd $(call if_pkg,libwebp,\
@@ -328,7 +325,6 @@ $(call rules,$(call std-build,ffmpeg, twolame lame openjpeg opus \
 $(call rules,$(call std-build,fftw))
 $(call rules,$(call std-build,flac,libogg))
 $(call rules,$(call std-build,giflib))
-$(call rules,$(call std-build,ilmbase))
 $(call rules,$(call std-build,ladspa))
 $(call rules,$(call std-build,lame))
 $(call rules,$(call std-build,libaom))
@@ -346,7 +342,7 @@ $(call rules,$(call std-build,libuuid))
 $(call rules,$(call std-build,libvorbis))
 $(call rules,$(call std-build,mjpegtools, libjpeg))
 $(call rules,$(call std-build,opencv))
-$(call rules,$(call std-build,openexr, ilmbase))
+$(call rules,$(call std-build,openexr))
 $(call rules,$(call std-build,openjpeg))
 $(call rules,$(call std-build,opus))
 $(call rules,$(call std-build,speech_tools))