Build: Avoid different quoting style in --enable-doxygen doc.
treeaf3c4739aca36eb50ec2d02221ea9ee7f754bad4
drwxr-xr-x - .github
-rw-r--r-- 1526 .gitignore
-rw-r--r-- 1402 AUTHORS
-rw-r--r-- 31891 CMakeLists.txt
-rw-r--r-- 2775 COPYING
-rw-r--r-- 18092 COPYING.GPLv2
-rw-r--r-- 35147 COPYING.GPLv3
-rw-r--r-- 26530 COPYING.LGPLv2.1
-rw-r--r-- 248 ChangeLog
-rw-r--r-- 109881 Doxyfile.in
-rw-r--r-- 31250 INSTALL
-rw-r--r-- 15756 INSTALL.generic
-rw-r--r-- 2989 Makefile.am
-rw-r--r-- 66119 NEWS
-rw-r--r-- 8662 PACKAGERS
-rw-r--r-- 13062 README
-rw-r--r-- 3205 THANKS
-rw-r--r-- 4007 TODO
-rwxr-xr-x 957 autogen.sh
drwxr-xr-x - build-aux
drwxr-xr-x - cmake
-rw-r--r-- 38511 configure.ac
drwxr-xr-x - debug
drwxr-xr-x - doc
drwxr-xr-x - dos
drwxr-xr-x - extra
drwxr-xr-x - lib
drwxr-xr-x - m4
drwxr-xr-x - macosx
drwxr-xr-x - po
drwxr-xr-x - po4a
drwxr-xr-x - src
drwxr-xr-x - tests
drwxr-xr-x - windows