@@ -90,11 +90,11 @@
 				AC_SUBST(SFDC_TARGET, ppc-morphos)
 				AC_SUBST(SFD_FILE, morphos.sfd)
 				t="-mresident32 -fno-builtin"
 				AC_SUBST(AMIGA_LIB_CFLAGS, $t)
 				t="-mresident32 -nostartfiles -nodefaultlibs"
-				t="$tmp -lc"
+				t="$t -lc"
 				AC_SUBST(AMIGA_LIB_LDFLAGS, $t)
 			])
 		])
 
 		enable_shared="no"
@@ -273,11 +273,18 @@
 		AX_CHECK_COMPILER_FLAGS(-std=gnu99,
 			[OBJCFLAGS="$OBJCFLAGS -std=gnu99"])
 	])
 ])
 
-AX_CHECK_COMPILER_FLAGS(-pipe, [OBJCFLAGS="$OBJCFLAGS -pipe"])
+case "$build_os" in
+	morphos*)
+		# MorphOS 3.10 has a buggy ixemul that does not work with -pipe.
+		;;
+	*)
+		AX_CHECK_COMPILER_FLAGS(-pipe, [OBJCFLAGS="$OBJCFLAGS -pipe"])
+		;;
+esac
 AX_CHECK_COMPILER_FLAGS(-fno-common, [OBJCFLAGS="$OBJCFLAGS -fno-common"])
 AX_CHECK_COMPILER_FLAGS(-Xclang -fno-constant-cfstrings, [
 	flag="-Xclang -fno-constant-cfstrings"
 	OBJCFLAGS="$OBJCFLAGS $flag"
 	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flag"