*-*-beos*			4.3
*-*-solaris2.[0-6]		4.3
*-*-solaris2.7			4.5
*-*-solaris2.8			4.7
*-*-solaris2.9			4.9
alpha*-*-gnu*			4.6
alpha*-*-interix*		3.3
alpha*-*-osf[123]*		3.1*
alpha*-dec-osf4*		4.5
alpha-dec-osf5.0*		4.5
alpha*-dec-osf5.1*		4.7
hppa*-*-lites*			3.3
hppa1.0-*-bsd*			3.3
hppa1.0-*-osf*			3.3
hppa1.1-*-bsd*			4.3
hppa1.1-*-osf*			4.3
hppa1.[01]-*-hpux[789]*		3.3
i?86-*-aix*			3.1*
i?86-*-dgux*			3.1*
i?86-*-sunos*			3.1*
i?86-next-*			3.1*
i[34567]86-*-interix3*		4.6
i[34567]86-*-sco3.2v5*		4.3 (SCO Open Server 5)
i[3456x]86-*-netware*		4.6
m68000-hp-bsd*			3.3
m68000-hp-hpux*			3.4
m68000-sun-sunos*		3.3
m68[k0]*-apple-*		3.1* (A/UX)
m68[k0]*-next-*			3.1*
m68k-atari-sysv*		3.3
m68k-hp-bsd*			3.3
m68k-hp-hpux*			3.4
m68k-sun-mach*			3.3
m68k-sun-sunos*			3.3
mips-*-bsd*			3.1*
mips-*-riscos*			3.1*
mips-*-ultrix*			3.1*
mips-dec-*			3.1*
mips-sgi-irix[1234]*		3.1*
mips-sgi-irix5*			4.5
mips-sgi-irix6.[0-4]		4.5
mips-sgi-irix6.5		4.7
mips-sni-sysv4			3.3 (SINIX)
pdp11-*-bsd			4.4
powerpc*-*-gnu*			4.6
rs6000-ibm-aix[123]*		3.3
rs6000-ibm-aix4.[12]*		4.4
powerpc-ibm-aix4.[12]*		4.4
sparc-*-bsd*			3.3
sparc-*-sunos[34]*		3.3
vax-*-vms*			3.3


* removed in 3.3