Re: [Qemu-trivial] [PATCH] po/Makefile: Fix source path for in-tree builds

[Michael Tokarev <mjt@tls.msk.ru>]

18.04.2014 15:55, Stefan Weil wrote:
> Use an absolute value for SRC_PATH. This fixes a build problem:
> 
> $ LANG=C make -C po update
> make: Entering directory `/qemu/po'
>   GEN   ../po/messages.po
> /bin/sh: 1: cannot create ../po/messages.po: Directory nonexistent
> make: *** [../po/messages.po] Error 2
> make: Leaving directory `/qemu/po'
> 
> Signed-off-by: Stefan Weil <sw@weilnetz.de>
> ---
>  po/Makefile |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/po/Makefile b/po/Makefile
> index 705166e..576b172 100644
> --- a/po/Makefile
> +++ b/po/Makefile
> @@ -2,7 +2,7 @@
>  # process and also within the source tree to update the translation files.
>  
>  # Set SRC_PATH for in-tree builds without configuration.
> -SRC_PATH=..
> +SRC_PATH=$(shell cd .. && pwd)
>  
>  -include ../config-host.mak
>  include $(SRC_PATH)/rules.mak

How about moving it below inclusion of config-host.mak and using something like

 SRC_PATH ?= $(realpath ..)

?  I dunno how gnu'ish this construct is... :)


However, I think I've a better fix for this:

Author: Michael Tokarev <mjt@tls.msk.ru>
Date:   Sun Apr 27 13:32:07 2014 +0400

    po/Makefile: fix $SRC_PATH reference

    The rule for messages.po appears to be slightly wrong.
    Move the `cd' command within parens.

    Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
    Cc: Stefan Weil <sw@weilnetz.de>
    Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/po/Makefile b/po/Makefile
index 705166e..669f865 100644
--- a/po/Makefile
+++ b/po/Makefile
@@ -37,8 +37,8 @@ install: $(OBJS)
        $(call quiet-command, msgfmt -o $@ $<, "  GEN   $@")

 $(PO_PATH)/messages.po: $(SRC_PATH)/ui/gtk.c
-       $(call quiet-command, cd $(SRC_PATH) && \
-        (xgettext -o - --from-code=UTF-8 --foreign-user \
+       $(call quiet-command, ( cd $(SRC_PATH) && \
+          xgettext -o - --from-code=UTF-8 --foreign-user \
            --package-name=QEMU --package-version=$(VERSION) \
            --msgid-bugs-address=qemu-devel@nongnu.org -k_ -C ui/gtk.c | \
          sed -e s/CHARSET/UTF-8/) >$@, "  GEN   $@")


Note the already existing parens () -- it looks like this is in order to
run commands within a subshell (with its own current directory) but still
have correct output redirection.

If you don't have objections, I'll apply my version (it also fixes the issue).

Thanks,

/mjt

Thanks,

/mjt