--- a/configure.ac
+++ b/configure.ac
@@ -77,6 +77,18 @@ AM_PATH_PKGCONFIG(
    [-lIlmImfCtl -lIlmImf -lz -lImath -lHalf -lIex -lIlmThread -lpthread -lIlmCtlSimd -lIlmCtlMath -lIlmCtl],
    [openexrctl-prefix])
 
+dnl 
+dnl check gl
+dnl
+AM_PATH_PKGCONFIG(
+   [GL_CFLAGS],
+   [GL_LDFLAGS],
+   [GL_LIBS],
+   [gl],
+   ,
+   [$LIB64_IF_EXISTS -L/usr/local/lib],
+   [-lGL],
+   [gl-prefix])
 
 dnl Enable and choose c++ standard
 AC_ARG_ENABLE(cxxstd,
--- a/exrdisplay/Makefile.am
+++ b/exrdisplay/Makefile.am
@@ -5,11 +5,12 @@ if HAVE_FLTK
 bin_PROGRAMS = exrdisplay
 
 INCLUDES = @OPENEXR_CXXFLAGS@ \
-        @GL_CXXFLAGS@ @CG_CXXFLAGS@ @FLTK_CXXFLAGS@ -I$(top_builddir) \
+        @GL_CFLAGS@ @GL_CXXFLAGS@ @CG_CXXFLAGS@ @FLTK_CXXFLAGS@ -I$(top_builddir) \
 	@OPENEXR_CTL_CXXFLAGS@
 
 LDADD = @OPENEXR_LDFLAGS@ @OPENEXR_LIBS@ \
         @OPENEXR_CTL_LDFLAGS@ @OPENEXR_CTL_LIBS@ \
+	@GL_LDFLAGS@ @GL_LIBS@ \
         @CG_LDFLAGS@ @FLTK_LDFLAGS@
         
 all-local: