Whole trying to make GD.pm on a Sparc20, sunos 4.1.3_u1:
$ perl Makefile.PL
Writing Makefile for GD
Warning (non-fatal): cflags evaluation in MakeMaker differs from shell output
package: GD
old: gcc -c -O
new: cc -c -O
Using 'old' set.
Please notify perl5-porters@nicoh.com
Warning (non-fatal): cflags evaluation in MakeMaker differs from shell output
package: GD
old: gcc -c -O
new: cc -c -O
Using 'old' set.
Please notify perl5-porters@nicoh.com
$ perl Makefile.PL
Writing Makefile for GD
Warning (non-fatal): cflags evaluation in MakeMaker differs from shell output
package: GD
old: gcc -c -O
new: cc -c -O
Using 'old' set.
Please notify perl5-porters@nicoh.com
Warning (non-fatal): cflags evaluation in MakeMaker differs from shell output
package: GD
old: gcc -c -O
new: cc -c -O
Using 'old' set.
Please notify perl5-porters@nicoh.com