mathmodule.c fails to compile because math_log1p() is missing in
mathmodule.c...

gcc -fno-strict-aliasing -DNDEBUG -O2 -pipe -fomit-frame-pointer  -I.
-IInclude -I./Include   -DPy_BUILD_CORE  -c ./Modules/mathmodule.c -o
Modules/mathmodule.o
./Modules/mathmodule.c: In function 'math_log1p':
./Modules/mathmodule.c:353: error: 'log1p' undeclared (first use in this
function)
./Modules/mathmodule.c:353: error: (Each undeclared identifier is
reported only once
./Modules/mathmodule.c:353: error: for each function it appears in.)
./Modules/mathmodule.c: In function 'math_fsum':
./Modules/mathmodule.c:574: warning: passing argument 1 of 'PyFPE_dummy'
discards qualifiers from pointer target type