all the missing functions are from the math.h and the sysroot has the correct path to header files.

also checked the hints/qnx.sh, even it has the correct path included in it. however i see its referencing hints/linux.pl right before the error

INSTALLDIRS=perl INSTALLMAN1DIR=none INSTALLMAN3DIR=none \ PERL_CORE=1 LIBPERL_A=libperl.a PERL_CORE=1 PERL="../../miniperl_top"
Processing hints file hints/linux.pl
CONFIG key 'osname' does not exist in Config.pm
Generating a Unix-style Makefile
Writing Makefile for threads
cd dist/threads-shared/ && ../../miniperl_top -I../../lib Makefile.PL \
INSTALLDIRS=perl INSTALLMAN1DIR=none INSTALLMAN3DIR=none \ PERL_CORE=1 LIBPERL_A=libperl.a PERL_CORE=1
PERL="../../miniperl_top"
Processing hints file hints/linux.pl
CONFIG key 'osname' does not exist in Config.pm
Generating a Unix-style Makefile

not sure why its referencing linux.pl, but for a quick test i overrided the linux.pl with qnx.pl, but ended running into same error