Kill off -Werror because it blows.

[   26s] ../angif/src/lib/h/angif_put_linear.c: In function 'angif_put_linear':
[   26s] ../angif/src/lib/h/angif_put_linear.c:105:13: error: variable 'inv_gamma_blue' set but not used [-Werror=unused-but-set-variable]
[   26s] ../angif/src/lib/h/angif_put_linear.c:104:13: error: variable 'inv_gamma_green' set but not used [-Werror=unused-but-set-variable]
[   26s] ../angif/src/lib/h/angif_put_linear.c:103:13: error: variable 'inv_gamma_red' set but not used [-Werror=unused-but-set-variable]
[   26s] cc1: all warnings being treated as errors

---
 configure |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: libh-0.8.5/configure
===================================================================
--- libh-0.8.5.orig/configure
+++ libh-0.8.5/configure
@@ -335,8 +335,8 @@ pgm_ld_cmd="${gcc}"
 lib_def=( "${lib_def[@]}" "-DARCH_${unamem}" "-DARCH=${unamem}" )
 pgm_def=( "${pgm_def[@]}" "-DARCH_${unamem}" "-DARCH=${unamem}" )
 
-lib_warn=( -Werror -Wall -Wnested-externs -Wno-cast-qual -Wno-trigraphs -Wuninitialized -Wwrite-strings )
-pgm_warn=( -Werror -Wall -Wnested-externs -Wno-cast-qual -Wno-trigraphs -Wuninitialized -Wwrite-strings )
+lib_warn=( -Wall -Wnested-externs -Wno-cast-qual -Wno-trigraphs -Wuninitialized -Wwrite-strings )
+pgm_warn=( -Wall -Wnested-externs -Wno-cast-qual -Wno-trigraphs -Wuninitialized -Wwrite-strings )
 
 if [[ -n "${warninline}" ]]; then
     lib_warn=( "${lib_warn[@]}" -Winline )