3 ?RCS: Copyright (c) 2000, Jarkko Hietaniemi
5 ?RCS: You may redistribute only under the terms of the Artistic Licence,
6 ?RCS: as specified in the README file that comes with the distribution.
7 ?RCS: You may reuse parts of this distribution only within the terms of
8 ?RCS: that same Artistic Licence; a copy of which may be found at the root
9 ?RCS: of the source tree for dist 3.0.
11 ?MAKE:gccversion gccosandvers: cat cpp rm +cc \
12 Mcc Myread Guess Options Oldconfig Loc osname osvers
13 ?MAKE: -pick add $@ %<
15 ?S: If GNU cc (gcc) is used, this variable holds '1' or '2' to
16 ?S: indicate whether the compiler is version 1 or 2. This is used in
17 ?S: setting some of the default cflags. It is set to '' if not gcc.
20 ?S: If GNU cc (gcc) is used, this variable the operating system and
21 ?S: version used to compile the gcc. It is set to '' if not gcc,
22 ?S: or if nothing useful can be parsed as the os version.
31 ?X: Check if they have gcc in any guise.
33 echo "Checking for GNU cc in disguise and/or its version number..." >&4
39 printf("%s\n", __VERSION__);
47 if $cc $ldflags -o gccvers gccvers.c; then
48 gccversion=`./gccvers`
50 '') echo "You are not using GNU cc." ;;
51 *) echo "You are using GNU cc $gccversion."
57 echo "*** WHOA THERE!!! ***" >&4
58 echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4
59 ?X: using -K will prevent aborting--maybe they're cross compiling?
62 echo " You'd better start hunting for one and let me know about it." >&4
69 1*) cpp=`./loc gcc-cpp $cpp $pth` ;;
72 '') gccosandvers='' ;;
73 *) gccshortvers=`echo "$gccversion"|sed 's/ .*//'`
74 gccosandvers=`$cc -v 2>&1|grep '/specs$'|sed "s!.*/[^-/]*-[^-/]*-\([^-/]*\)/$gccshortvers/specs!\1!"`
76 case "$gccosandvers" in
77 $osname) gccosandvers='' ;; # linux gccs seem to have no linux osvers, grr
78 $osname$osvers) ;; # looking good
79 $osname*) cat <<EOM >&4
83 Your gcc has not been compiled for the exact release of
84 your operating system ($gccosandvers versus $osname$osvers).
86 In general it is a good idea to keep gcc synchronized with
87 the operating system because otherwise serious problems
88 may ensue when trying to compile software, like Perl.
90 I'm trying to be optimistic here, though, and will continue.
91 If later during the configuration and build icky compilation
92 problems appear (headerfile conflicts being the most common
93 manifestation), I suggest reinstalling the gcc to match
94 your operating system release.
98 *) gccosandvers='' ;; # failed to parse, better be silent