[R] e1071, R1.9.0, Solaris 2.9, should I be worried?

[Richard A. O'Keefe]

In R 1.9.0 running under Solaris 2.9 on a SunBlade 100,
with "Sun WorkShop 6 update 2 C++ 5.3 2001/05/15" as the
C++ compiler, I just did
> install.packages("e1071")
The output includes these lines, which I have wrapped to fit nicely in mail:
** libs
cc -I/users/local/lib/R/include -I/usr/local/include  -KPIC -xlibmil \
 -dalign -xO4 -c cmeans.c -o cmeans.o
cc -I/users/local/lib/R/include -I/usr/local/include  -KPIC -xlibmil \
 -dalign  -xO4 -c cshell.c -o cshell.o
cc -I/users/local/lib/R/include -I/usr/local/include  -KPIC -xlibmil \
 -dalign -xO4 -c floyd.c -o floyd.o
cc -I/users/local/lib/R/include -I/usr/local/include  -KPIC -xlibmil \
 -dalign -xO4 -c Rsvm.c -o Rsvm.o
CC -I/users/local/lib/R/include -I/usr/local/include  -KPIC -xlibmil \
 -dalign -xO4 -c svm.cpp -o svm.o
"svm.cpp", line 444: Warning: l hides Solver::l.
"svm.cpp", line 444: Warning: Q hides Solver::Q.
"svm.cpp", line 444: Warning: Cp hides Solver::Cp.
"svm.cpp", line 444: Warning: Cn hides Solver::Cn.
"svm.cpp", line 444: Warning: eps hides Solver::eps.
"svm.cpp", line 507: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 517: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 690: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 881: Warning: l hides Solver::l.
"svm.cpp", line 881: Warning: Q hides Solver::Q.
"svm.cpp", line 881: Warning: b hides Solver::b.
"svm.cpp", line 881: Warning: y hides Solver::y.
"svm.cpp", line 881: Warning: alpha hides Solver::alpha.
"svm.cpp", line 881: Warning: Cp hides Solver::Cp.
"svm.cpp", line 881: Warning: Cn hides Solver::Cn.
"svm.cpp", line 881: Warning: eps hides Solver::eps.
"svm.cpp", line 881: Warning: si hides Solver_NU::si.
"svm.cpp", line 1278: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 1328: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 1404: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 1439: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 1483: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 1507: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
"svm.cpp", line 1719: Warning:
    String literal converted to char* in formal argument fmt 
    in call to info(char*, ...).
24 Warning(s) detected.

How worried should I be?
I guess the "Warning: x hides Solver::x" warnings related to a deliberate
style choice, but what about the "String literal converted to char*" ones?