[Qemu-devel] [PATCH] configure: Fix creation of symbolic links for MinGW toolchain
The MinGW toolchain on w32/w64 hosts does not create symbolic links,
but implements 'ln -s' similar to 'cp -r'.
In incremental out of tree builds, this resulted in files which
were not updated when their counterparts in the QEMU source tree
changed. Especially for Makefile* this happened very often.
With this patch, the 'symlinked' files are now always updated for
out of tree builds. Similar code was already used for the symbolic
link of libcacard/Makefile.
The symlink macro always removes the target before it is created
again, therefore the rm command for libcacard/Makefile was redundant
and is removed now.
Macro symlink is also used with directories. To remove them on w32
hosts, a recursive rm is needed.
Signed-off-by: Stefan Weil s...@weilnetz.de
---
configure |5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/configure b/configure
index afe7395..acf63a9 100755
--- a/configure
+++ b/configure
@@ -41,7 +41,7 @@ compile_prog() {
# symbolically link $1 to $2. Portable version of ln -sf.
symlink() {
- rm -f $2
+ rm -rf $2
ln -s $1 $2
}
@@ -3883,7 +3883,7 @@ do
done
mkdir -p $DIRS
for f in $FILES ; do
-if [ -e $source_path/$f ] ! [ -e $f ]; then
+if [ -e $source_path/$f ] [ $source_path != `pwd` ]; then
symlink $source_path/$f $f
fi
done
@@ -3914,7 +3914,6 @@ done
if [ $source_path != `pwd` ]; then
# out of tree build
mkdir -p libcacard
-rm -f libcacard/Makefile
symlink $source_path/libcacard/Makefile libcacard/Makefile
fi
--
1.7.9
Re: [Qemu-devel] [PATCH] configure: Fix creation of symbolic links for MinGW toolchain
On 17 March 2012 15:31, Stefan Weil s...@weilnetz.de wrote: Macro symlink is also used with directories. To remove them on w32 hosts, a recursive rm is needed. Where do we symlink directories? (I exclude the setting up of the linux headers because that will only happen on Linux hosts where we know we have working symlinks.) -- PMM
Re: [Qemu-devel] [PATCH] configure: Fix creation of symbolic links for MinGW toolchain
Am 17.03.2012 16:49, schrieb Peter Maydell: On 17 March 2012 15:31, Stefan Weils...@weilnetz.de wrote: Macro symlink is also used with directories. To remove them on w32 hosts, a recursive rm is needed. Where do we symlink directories? (I exclude the setting up of the linux headers because that will only happen on Linux hosts where we know we have working symlinks.) -- PMM pc-bios/keymaps Cheers, Stefan W.
Re: [Qemu-devel] [PATCH] configure: Fix creation of symbolic links for MinGW toolchain
On 17 March 2012 15:59, Stefan Weil s...@weilnetz.de wrote: Am 17.03.2012 16:49, schrieb Peter Maydell: Where do we symlink directories? (I exclude the setting up of the linux headers because that will only happen on Linux hosts where we know we have working symlinks.) pc-bios/keymaps Oh yes, missed that one (since it's a directory name cunningly hidden in a variable named FILES :-)). I'm just a little wary of 'rm -rf', especially here where we're nuking whatever was passed as an argument and we aren't getting the shell quoting right. In theory we could use a wildcard for the keymaps the same way we do for a bunch of the other pc-bios files; I'm not sure if it's worth the effort, though. -- PMM
