Problem building from git source: osl/doc/openscop.texi:636: misplaced {

[Charlie Brown]

Hi there!
I tried to build cloog today with bundled osl, and found it could not
build, probably because of some problem with osl/doc/openscop.texi.
make tells me that:
"
openscop.texi:636: misplaced {
openscop.texi:636: misplaced }
openscop.texi:637: misplaced {
openscop.texi:637: misplaced }
openscop.texi:638: misplaced {
openscop.texi:638: misplaced }
openscop.texi:679: misplaced {
openscop.texi:679: misplaced }
openscop.texi:680: misplaced {
openscop.texi:680: misplaced }
openscop.texi:681: misplaced {
openscop.texi:681: misplaced }
openscop.texi:727: misplaced {
openscop.texi:727: misplaced }
openscop.texi:728: misplaced {
openscop.texi:728: misplaced }
openscop.texi:729: misplaced {
openscop.texi:729: misplaced }
openscop.texi:779: misplaced {
openscop.texi:779: misplaced }
openscop.texi:780: misplaced {
openscop.texi:780: misplaced }
openscop.texi:781: misplaced {
openscop.texi:781: misplaced }
openscop.texi:837: misplaced {
openscop.texi:837: misplaced }
openscop.texi:838: misplaced {
openscop.texi:838: misplaced }
openscop.texi:839: misplaced {
openscop.texi:839: misplaced }
openscop.texi:949: misplaced {
openscop.texi:949: misplaced }
openscop.texi:1015: misplaced {
openscop.texi:1015: misplaced }
openscop.texi:2425: warning: node next `Comment Extension' in menu
`Arrays Extension' and in sectioning `Scatnames Extension' differ
openscop.texi:2469: warning: node next `Scatnames Extension' in menu
`Coordinates Extension' and in sectioning `Arrays Extension' differ
openscop.texi:2469: warning: node prev `Scatnames Extension' in menu
`Arrays Extension' and in sectioning `Comment Extension' differ
openscop.texi:2522: warning: node next `Arrays Extension' in menu
`Scatnames Extension' and in sectioning `Coordinates Extension' differ
openscop.texi:2522: warning: node prev `Arrays Extension' in menu
`Comment Extension' and in sectioning `Scatnames Extension' differ
openscop.texi:2587: warning: node prev `Coordinates Extension' in menu
`Scatnames Extension' and in sectioning `Arrays Extension' differ
make[2]: *** [openscop.info] Error 1
"
I'm not at all familiar with texinfo, so I don't know if i'm using the
wrong version of Gnu texinfo(5.1)(debian), or if there really are
something messed up in the file.
Thank you!
--
Sincerely,
王文鑫