Fix for bug [126d071408]. #631

Job	Run time
test (gcc)	4m 2s
build (gcc)	1m 57s
test (gcc, --disable-xft)	4m 11s
build (gcc, CFLAGS=-DTK_NO_DEPRECATED=1)	1m 38s
test (gcc, --enable-symbols)	3m 42s
build (gcc, --disable-shared)	2m 11s
build (gcc, --disable-xft)	1m 41s
build (gcc, --disable-xss)	1m 46s
build (gcc, --enable-symbols)	1m 16s
build (clang)	1m 54s
build (clang, CFLAGS=-DTK_NO_DEPRECATED=1)	2m 7s
build (clang, --disable-shared)	1m 56s
build (clang, --disable-xft)	1m 49s
build (clang, --disable-xss)	1m 55s
build (clang, --enable-symbols)	1m 38s
	33m 43s

Provide feedback