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Re: [Qemu-devel] [PATCH v2] Remove the extra -lrt switch
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH v2] Remove the extra -lrt switch |
Date: |
Fri, 27 Apr 2012 15:55:42 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1 |
On 04/27/2012 02:16 PM, Peter Portante wrote:
> The package config check for gthreads might have already placed
> a -lrt switch in LIBS earlier.
>
> Refactored the code from the pthread switch removal, from commit
> e3c56761b465a4253871c32b06ebbc2d8b3fc3e1, to make it work for the
> more general case.
>
> +add_to_libs() {
> + found=no
> + for lib_entry in $LIBS; do
> + if test "$lib_entry" = "$1"; then
> + found=yes
> + break
> + fi
> + done
> + if test "$found" = "no"; then
> + LIBS="$1 $LIBS"
> + fi
> +}
Shorter (and probably faster) to write this as:
add_to_libs() {
case " $LIBS " in
" $1 ") ;;
*) LIBS="$1 $LIBS" ;;
esac
}
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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