diff --git a/aegisub/Makefile.am b/aegisub/Makefile.am
index 9e994fda4..ae956f461 100644
--- a/aegisub/Makefile.am
+++ b/aegisub/Makefile.am
@@ -9,7 +9,7 @@ AM_CXXFLAGS = -DAEGISUB -Iposix -include posix/defines.h -Iinclude @WX_CPPFLAGS@
 bin_PROGRAMS = aegisub
 aegisub_LDADD = posix/libposix.a
 aegisub_CPPFLAGS = @FREETYPE_CFLAGS@
-aegisub_LDFLAGS = @GL_LIBS@ @PTHREAD_LIBS@ @WX_LIBS@
+aegisub_LDFLAGS = @GL_LIBS@ @PTHREAD_LIBS@ @WX_LIBS@ @ICONV_LDFLAGS@
 LIBS += @FREETYPE_LIBS@ @FONTCONFIG_LIBS@
 
 if BUILD_DARWIN
@@ -56,7 +56,7 @@ endif
 if WITH_LIBASS
 noinst_LIBRARIES += libsubtitle_ass.a
 libsubtitle_ass_a_SOURCES = subtitles_provider_libass.cpp
-libsubtitle_ass_a_CPPFLAGS = @LIBASS_CFLAGS@
+libsubtitle_ass_a_CPPFLAGS = @LIBASS_CFLAGS@ @ICONV_CFLAGS@
 LIBS += @LIBASS_LIBS@
 aegisub_LDADD += libsubtitle_ass.a
 aegisub_LDFLAGS += @FONTCONFIG_LIBS@
diff --git a/configure.in b/configure.in
index 013f99677..5c8456030 100644
--- a/configure.in
+++ b/configure.in
@@ -405,7 +405,6 @@ if test -z "$ICONV_CFLAGS"; then
   ICONV_CFLAGS="$CPPFLAGS";
 fi
 
-
 if test "$enable_libass" != "no"; then
   aegisub_save_CPPFLAGS="$CPPFLAGS"
   CPPFLAGS="$ICONV_CFLAGS"
@@ -414,10 +413,9 @@ if test "$enable_libass" != "no"; then
 
   aegisub_save_LDFLAGS="$LDFLAGS"
   LDFLAGS="$ICONV_LDFLAGS"
-  AC_CHECK_LIB([iconv], [iconv_open],[ICONV_LDFLAGS="$ICONV_LIBS"; with_iconv="yes"], with_iconv="no")
+  AC_CHECK_LIB([iconv], [iconv_open],[ICONV_LDFLAGS="$ICONV_LDFLAGS"; with_iconv="yes"], with_iconv="no")
   LDFLAGS="$aegisub_save_LDFLAGS"
 
-
   if test "$with_iconv" = "yes"; then
     LIBASS_LIBS="-L../libass -lass_aegisub"
     LIBASS_CFLAGS="-I../libass"
@@ -428,11 +426,12 @@ if test "$enable_libass" != "no"; then
   fi
 fi
 
-
 if test "$with_libass" = "yes"; then
   AC_DEFINE(WITH_LIBASS, 1, [Enable libass Subtitle Provider])
 fi
 
+AC_SUBST(ICONV_LDFLAGS)
+AC_SUBST(ICONV_CFLAGS)
 AC_SUBST(LIBASS_LIBS)
 AC_SUBST(LIBASS_CFLAGS)
 AM_CONDITIONAL([WITH_LIBASS], [test "$with_libass" = "yes"])
diff --git a/libass/Makefile.am b/libass/Makefile.am
index c76c0ecdd..fd12c1d92 100644
--- a/libass/Makefile.am
+++ b/libass/Makefile.am
@@ -1,6 +1,6 @@
 noinst_LIBRARIES = libass_aegisub.a
 
-AM_CPPFLAGS = @FREETYPE_CFLAGS@ -DHAVE_FONTCONFIG -DUSE_ICONV @FONTCONFIG_CFLAGS@
+AM_CPPFLAGS = @FREETYPE_CFLAGS@ -DHAVE_FONTCONFIG -DUSE_ICONV @FONTCONFIG_CFLAGS@ @ICONV_CFLAGS@
 
 libass_aegisub_a_SOURCES = \
 	ass.c \