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bug#40751: Libtool bug: Resolving host_os correctly?
From: |
Andreas Wiesinger |
Subject: |
bug#40751: Libtool bug: Resolving host_os correctly? |
Date: |
Tue, 21 Apr 2020 21:13:45 +0200 |
Hello,
TL;DR:
case $host_os in cygwin*) does not work when $host_os resolves to
"x86_64-pc-cygwin", but should step into the case statement imo.
Probably case $host_os in *cygwin*) would resolve it (pay attention
to the extra * )?
Long version:
OS: Windows 10 (64bit)
Cygwin Terminal x64
Aim: Trying to build gmp-6.2.0
Gmp comes with a configure file. This configure file seems to be a
fork from libtool's configure file as the same lines (which I address
in this report) are contained in both files, the gmp's and libtool's.
First step: run "./configure --disable-static --enable-shared" in the
cygwin terminal in the directory where the gmp source was unzipped.
Next, run "make".
I did not build because in my case the configuration file chose the
wrong line for archive_cmds, because it did not recognize that I'm
running on cygwin, but instead used the *) glob for the case
statement.
I don't know how the configure file is actually being generated, but
it contains the following line (in my version of libtool: 2.4.6):
case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
(in my case in the line 9638 in libtool's original configure-file, but
it depends on the project in which this configuration is being used).
However, you should be able to find that line with the search function.
scrolling down a bit, I have the line
cygwin* | mingw* | pw32* | cegcc*)
And here is the actual problem:
When I run "./configure --disable-static --enable-shared" I can
clearly see the output that the host_os variable is in my case
"x86_64-pc-cygwin":
Version: GNU MP 6.2.0
Host type: x86_64-pc-cygwin
ABI: 64
Install prefix: /usr/local
Compiler: gcc
Static libraries: no
Shared libraries: yes
But that is not recognized by the case condition "cygwin*". in my case
it should probably be "*cygwin*" instead.
Kind regards
Andreas
- bug#40751: Libtool bug: Resolving host_os correctly?,
Andreas Wiesinger <=