diff options
Diffstat (limited to 'scripts/os-type')
| -rwxr-xr-x | scripts/os-type | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/scripts/os-type b/scripts/os-type new file mode 100755 index 0000000..a188c4a --- /dev/null +++ b/scripts/os-type @@ -0,0 +1,164 @@ +#! /bin/sh + +# Shell script to determine the operating system type. Some of the heuristics +# herein have accumulated over the years and may not strictly be needed now, +# but they are left in under the principle of "If it ain't broke, don't fix +# it." + +# For some OS there are two variants: a full name, which is used for the +# build directory, and a generic name, which is used to identify the OS- +# specific scripts, and which can be the same for different versions of +# the OS. Solaris 2 is one such OS. The option -generic specifies the +# latter type of output. + +# If EXIM_OSTYPE is set, use it. This allows a manual override. + +case "$EXIM_OSTYPE" in ?*) os="$EXIM_OSTYPE";; esac + +# Otherwise, try to get a value from the uname command. Use an explicit +# option just in case there are any systems where -s is not the default. + +case "$os" in '') os=`uname -s`;; esac + +# Identify Glibc systems under different names. + +case "$os" in GNU) os=GNU;; esac +case "$os" in GNU/*|Linux) os=Linux;; esac + +# It is believed that all systems respond to uname -s, but just in case +# there is one that doesn't, use the shell's $OSTYPE variable. It is known +# to be unhelpful for some systems (under IRIX is it "irix" and under BSDI +# 3.0 it may be "386BSD") but those systems respond to uname -s, so this +# doesn't matter. + +case "$os" in '') os="$OSTYPE";; esac + +# Failed to find OS type. + +case "$os" in +'') echo "" 1>&2 + echo "*** Failed to determine the operating system type." 1>&2 + echo "" 1>&2 + echo UnKnown + exit 1;; +esac + +# Clean out gash characters + +os=`echo $os | sed 's,[^-+_.a-zA-Z0-9],,g'` + +# A value has been obtained for the os. Some massaging may be needed in +# some cases to get a uniform set of values. In earlier versions of this +# script, $OSTYPE was looked at before uname -s, and various shells set it +# to things that are subtly different. It is possible that some of this may +# no longer be needed. + +case "$os" in +aix*) os=AIX;; +AIX*) os=AIX;; +bsdi*) os=BSDI;; +BSDOS) os=BSDI;; +BSD_OS) os=BSDI;; +CYGWIN*) os=CYGWIN;; +dgux) os=DGUX;; +freebsd*) os=FreeBSD;; +gnu) os=GNU;; +Irix5) os=IRIX;; +Irix6) os=IRIX6;; +IRIX64) os=IRIX6;; +irix6.5) os=IRIX65;; +IRIX) version=`uname -r` + case "$version" in + 5*) os=IRIX;; + 6.5) version=`uname -R | awk '{print $NF}'` + version=`echo $version | sed 's,[^-+_a-zA-Z0-9],,g'` + os=IRIX$version;; + 6*) os=IRIX632;; + esac;; +HI-OSF1-MJ) os=HI-OSF;; +HI-UXMPP) os=HI-OSF;; +hpux*) os=HP-UX;; +linux) os=Linux;; +linux-*) os=Linux;; +Linux-*) os=Linux;; +netbsd*) os=NetBSD;; +NetBSD*) os=NetBSD;; +openbsd*) os=OpenBSD;; +osf1) os=OSF1;; +qnx*) os=QNX;; +solaris*) os=SunOS5;; +sunos4*) os=SunOS4;; +UnixWare) os=Unixware7;; +Ultrix) os=ULTRIX;; +ultrix*) os=ULTRIX;; +esac + +# In the case of SunOS we need to distinguish between SunOS4 and Solaris (aka +# SunOS5); in the case of BSDI we need to distinguish between versions 3 and 4; +# in the case of HP-UX we need to distinguish between version 9 and later. + +case "$os" in +SunOS) case `uname -r` in + 5*) os="${os}5";; + 4*) os="${os}4";; + esac;; + +BSDI) case `uname -r` in + 3*) os="${os}3";; + 4.2*) os="${os}4.2";; + 4*) os="${os}4";; + esac;; + +HP-UX) case `uname -r` in + A.09*) os="${os}-9";; + esac;; +esac + +# Need to distinguish Solaris from the version on the HAL (64bit sparc, +# CC=hcc -DV7). Also need to distinguish different versions of the OS +# for building different binaries. + +case "$os" in +SunOS5) case `uname -m` in + sun4H) os="${os}-hal";; + *) os="${os}-`uname -r`";; + esac + ;; + +# In the case of Linux we used to distinguish which libc was used so that +# the old libc5 was supported as well as the current glibc. This support +# was giving some people problems, so it was removed in June 2005, under +# the assumption that nobody would be using libc5 any more (it is over seven +# years old). + +# In the case of NetBSD we need to distinguish between a.out, ELF +# and COFF binary formats. However, a.out and COFF are the same +# for our purposes, so both of them are defined as "a.out". +# Todd Vierling of Wasabi Systems reported that NetBSD/sh3 (the +# only NetBSD port that uses COFF binary format) will switch to +# ELF soon. + +NetBSD) if echo __ELF__ | ${CC-cc} -E - | grep -q __ELF__ ; then + # Non-ELF system + os="NetBSD-a.out" + fi + ;; + +esac + +# If a generic OS name is requested, some further massaging is needed +# for some systems. + +if [ "$1" = '-generic' ]; then + case "$os" in + SunOS5*) os=SunOS5;; + BSDI*) os=BSDI;; + IRIX65*) os=IRIX65;; + esac +fi + +# OK, the script seems to have worked. Pass the value back. + +echo "$os" + +# End of os-type |