diff --git a/icu4c/source/aclocal.m4 b/icu4c/source/aclocal.m4
index ef5bf838d42..a4d4d1d0954 100644
--- a/icu4c/source/aclocal.m4
+++ b/icu4c/source/aclocal.m4
@@ -30,7 +30,7 @@ powerpc*-*-linux*)
 	else
 		icu_cv_host_frag=mh-linux-va
 	fi ;;
-*-*-linux*|*-pc-gnu) icu_cv_host_frag=mh-linux ;;
+*-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu) icu_cv_host_frag=mh-linux ;;
 *-*-cygwin|*-*-mingw32)
 	if test "$GCC" = yes; then
 		AC_TRY_COMPILE([
diff --git a/icu4c/source/configure.in b/icu4c/source/configure.in
index eeea40f6802..a08eae4e9b9 100644
--- a/icu4c/source/configure.in
+++ b/icu4c/source/configure.in
@@ -1230,8 +1230,7 @@ ICUDATA_CHAR=$U_ENDIAN_CHAR
 # set ICUDATA_CHAR to 'e' for any EBCDIC (which should be big endian) platform.
 case "${host}" in
 	*-*-solaris*) 	platform=U_SOLARIS ;;
-	*-*-linux*) 	platform=U_LINUX ;;
-	*-pc-gnu) 	platform=U_HURD ;;
+	*-*-linux*|*-*-gnu|*-*-k*bsd*-gnu|*-*-kopensolaris*-gnu)        platform=U_LINUX ;;
 	*-*-*bsd*|*-*-dragonfly*) 	platform=U_BSD ;;
 	*-*-aix*) 	platform=U_AIX ;;
 	*-*-hpux*) 	platform=U_HPUX ;;