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fd1a35d0 JH |
1 | ?RCS: $Id$ |
2 | ?RCS: | |
3 | ?RCS: Copyright (c) 2000, Jarkko Hietaniemi | |
4 | ?RCS: | |
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. | |
10 | ?RCS: | |
5fc71efb KS |
11 | ?MAKE:gccversion gccosandvers: cat cpp rm +cc \ |
12 | Mcc Myread Guess Options Oldconfig Loc osname osvers | |
fd1a35d0 JH |
13 | ?MAKE: -pick add $@ %< |
14 | ?S:gccversion: | |
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. | |
18 | ?S:. | |
5fc71efb KS |
19 | ?S:gccosandvers: |
20 | ?S: If GNU cc (gcc) is used, this variable the operating system and | |
fcc4de7b JH |
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. | |
5fc71efb | 23 | ?S:. |
fd1a35d0 JH |
24 | ?F:!gccvers |
25 | ?D:gccversion='' | |
26 | ?LINT:change cpp | |
27 | ?LINT:extern ldflags | |
28 | ?X: Check if they have gcc in any guise. | |
29 | echo " " | |
30 | echo "Checking for GNU cc in disguise and/or its version number..." >&4 | |
31 | $cat >gccvers.c <<EOM | |
32 | #include <stdio.h> | |
33 | int main() { | |
34 | #ifdef __GNUC__ | |
35 | #ifdef __VERSION__ | |
36 | printf("%s\n", __VERSION__); | |
37 | #else | |
38 | printf("%s\n", "1"); | |
39 | #endif | |
40 | #endif | |
41 | exit(0); | |
42 | } | |
43 | EOM | |
44 | if $cc $ldflags -o gccvers gccvers.c; then | |
45 | gccversion=`./gccvers` | |
46 | case "$gccversion" in | |
47 | '') echo "You are not using GNU cc." ;; | |
48 | *) echo "You are using GNU cc $gccversion." | |
49 | ;; | |
50 | esac | |
51 | else | |
52 | echo " " | |
53 | echo "*** WHOA THERE!!! ***" >&4 | |
54 | echo " Your C compiler \"$cc\" doesn't seem to be working!" >&4 | |
55 | ?X: using -K will prevent aborting--maybe they're cross compiling? | |
56 | case "$knowitall" in | |
57 | '') | |
58 | echo " You'd better start hunting for one and let me know about it." >&4 | |
59 | exit 1 | |
60 | ;; | |
61 | esac | |
62 | fi | |
63 | $rm -f gccvers* | |
64 | case "$gccversion" in | |
65 | 1*) cpp=`./loc gcc-cpp $cpp $pth` ;; | |
66 | esac | |
5fc71efb KS |
67 | case "$gccversion" in |
68 | '') gccosandvers='' ;; | |
36011360 | 69 | *) gccosandvers=`$cc -v 2>&1|grep '/specs$'|sed 's!.*/[^-]*-[^-]*-\([^/]*\)/'$gccversion'/specs'$!\1!'` |
5fc71efb | 70 | case "$gccosandvers" in |
fcc4de7b JH |
71 | $osname) gccosandvers='' ;; # linux gccs seem to have no linux osvers, grr |
72 | $osname$osvers) ;; # looking good | |
5fc71efb KS |
73 | $osname*) cat <<EOM >&4 |
74 | ||
75 | *** WHOA THERE!!! *** | |
76 | ||
77 | Your gcc has not been compiled for the exact release of | |
78 | your operating system ($gccosandvers versus $osname$osvers). | |
79 | ||
80 | In general it is a good idea to keep gcc synchronized with | |
81 | the operating system because otherwise serious problems | |
82 | may ensue when trying to compile software, like Perl. | |
83 | ||
84 | I'm trying to be optimistic here, though, and will continue. | |
85 | If later during the configuration and build icky compilation | |
fcc4de7b JH |
86 | problems appear (headerfile conflicts being the most common |
87 | manifestation), I suggest reinstalling the gcc to match | |
5fc71efb KS |
88 | your operating system release. |
89 | ||
90 | EOM | |
91 | ;; | |
1c7fa146 | 92 | *) gccosandvers='' ;; # failed to parse, better be silent |
5fc71efb KS |
93 | esac |
94 | ;; | |
95 | esac | |
96 | ||
97 | ||
98 | ||
fd1a35d0 | 99 |