* [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@
@ 2018-02-21 20:55 Gaël PORTAY
2018-02-21 20:55 ` [Buildroot] [PATCH 2/2] pkgconf: pkg-config.in: exec pkgconf Gaël PORTAY
2018-02-21 21:13 ` [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Thomas Petazzoni
0 siblings, 2 replies; 6+ messages in thread
From: Gaël PORTAY @ 2018-02-21 20:55 UTC (permalink / raw)
To: buildroot
Double quote $@ to prevent from splitting elements.
Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com>
---
package/pkgconf/pkg-config.in | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/package/pkgconf/pkg-config.in b/package/pkgconf/pkg-config.in
index b9ce0935cc..9387931ff2 100644
--- a/package/pkgconf/pkg-config.in
+++ b/package/pkgconf/pkg-config.in
@@ -2,4 +2,4 @@
PKGCONFDIR=$(dirname $0)
DEFAULT_PKG_CONFIG_LIBDIR=${PKGCONFDIR}/../@STAGING_SUBDIR@/usr/lib/pkgconfig:${PKGCONFDIR}/../@STAGING_SUBDIR@/usr/share/pkgconfig
DEFAULT_PKG_CONFIG_SYSROOT_DIR=${PKGCONFDIR}/../@STAGING_SUBDIR@
-PKG_CONFIG_LIBDIR=${PKG_CONFIG_LIBDIR:-${DEFAULT_PKG_CONFIG_LIBDIR}} PKG_CONFIG_SYSROOT_DIR=${PKG_CONFIG_SYSROOT_DIR:-${DEFAULT_PKG_CONFIG_SYSROOT_DIR}} ${PKGCONFDIR}/pkgconf @STATIC@ $@
+PKG_CONFIG_LIBDIR=${PKG_CONFIG_LIBDIR:-${DEFAULT_PKG_CONFIG_LIBDIR}} PKG_CONFIG_SYSROOT_DIR=${PKG_CONFIG_SYSROOT_DIR:-${DEFAULT_PKG_CONFIG_SYSROOT_DIR}} ${PKGCONFDIR}/pkgconf @STATIC@ "$@"
--
2.16.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [Buildroot] [PATCH 2/2] pkgconf: pkg-config.in: exec pkgconf
2018-02-21 20:55 [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Gaël PORTAY
@ 2018-02-21 20:55 ` Gaël PORTAY
2018-02-21 21:13 ` [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Thomas Petazzoni
1 sibling, 0 replies; 6+ messages in thread
From: Gaël PORTAY @ 2018-02-21 20:55 UTC (permalink / raw)
To: buildroot
Replace the shell script with pkgconf without creating a new process.
Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com>
---
package/pkgconf/pkg-config.in | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/package/pkgconf/pkg-config.in b/package/pkgconf/pkg-config.in
index 9387931ff2..99c0add8fb 100644
--- a/package/pkgconf/pkg-config.in
+++ b/package/pkgconf/pkg-config.in
@@ -2,4 +2,4 @@
PKGCONFDIR=$(dirname $0)
DEFAULT_PKG_CONFIG_LIBDIR=${PKGCONFDIR}/../@STAGING_SUBDIR@/usr/lib/pkgconfig:${PKGCONFDIR}/../@STAGING_SUBDIR@/usr/share/pkgconfig
DEFAULT_PKG_CONFIG_SYSROOT_DIR=${PKGCONFDIR}/../@STAGING_SUBDIR@
-PKG_CONFIG_LIBDIR=${PKG_CONFIG_LIBDIR:-${DEFAULT_PKG_CONFIG_LIBDIR}} PKG_CONFIG_SYSROOT_DIR=${PKG_CONFIG_SYSROOT_DIR:-${DEFAULT_PKG_CONFIG_SYSROOT_DIR}} ${PKGCONFDIR}/pkgconf @STATIC@ "$@"
+PKG_CONFIG_LIBDIR=${PKG_CONFIG_LIBDIR:-${DEFAULT_PKG_CONFIG_LIBDIR}} PKG_CONFIG_SYSROOT_DIR=${PKG_CONFIG_SYSROOT_DIR:-${DEFAULT_PKG_CONFIG_SYSROOT_DIR}} exec ${PKGCONFDIR}/pkgconf @STATIC@ "$@"
--
2.16.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@
2018-02-21 20:55 [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Gaël PORTAY
2018-02-21 20:55 ` [Buildroot] [PATCH 2/2] pkgconf: pkg-config.in: exec pkgconf Gaël PORTAY
@ 2018-02-21 21:13 ` Thomas Petazzoni
2018-02-21 23:48 ` Gaël PORTAY
1 sibling, 1 reply; 6+ messages in thread
From: Thomas Petazzoni @ 2018-02-21 21:13 UTC (permalink / raw)
To: buildroot
Hello,
On Wed, 21 Feb 2018 15:55:54 -0500, Ga?l PORTAY wrote:
> Double quote $@ to prevent from splitting elements.
>
> Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com>
Could you give more details about what this is fixing, i.e a specific
scenario that is fixed by this patch ?
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@
2018-02-21 21:13 ` [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Thomas Petazzoni
@ 2018-02-21 23:48 ` Gaël PORTAY
2018-02-22 15:49 ` Thomas Petazzoni
0 siblings, 1 reply; 6+ messages in thread
From: Gaël PORTAY @ 2018-02-21 23:48 UTC (permalink / raw)
To: buildroot
Thomas,
On Wed, Feb 21, 2018 at 10:13:16PM +0100, Thomas Petazzoni wrote:
> Hello,
>
> On Wed, 21 Feb 2018 15:55:54 -0500, Ga?l PORTAY wrote:
> > Double quote $@ to prevent from splitting elements.
> >
> > Signed-off-by: Ga?l PORTAY <gael.portay@savoirfairelinux.com>
>
> Could you give more details about what this is fixing, i.e a specific
> scenario that is fixed by this patch ?
In the case pkgconf, I can not see a real situation where this patch
fixes an issue.
There is an important difference between $@ and "$@". The shell expands
"$@" as "$1" "$2" "$3"... while it expands $@ as $1 $2 $3.
With the second form, we losts spaces in positional parameters.
As example, the following call
pkg-config --cflags "one two" three
is wrapped as
pkgconf --cflags one two three
while we are expecting
pkgconf --cflags "one two" three
"$@" is really useful when writing wrappers. It passes the positional
arguments *as* they are given.
>
> Thanks!
>
> Thomas
> --
> Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
> Embedded Linux and Kernel engineering
> http://bootlin.com
Regards,
Gael
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@
2018-02-21 23:48 ` Gaël PORTAY
@ 2018-02-22 15:49 ` Thomas Petazzoni
2018-02-22 15:57 ` Gaël PORTAY
0 siblings, 1 reply; 6+ messages in thread
From: Thomas Petazzoni @ 2018-02-22 15:49 UTC (permalink / raw)
To: buildroot
Hello,
On Wed, 21 Feb 2018 18:48:54 -0500, Ga?l PORTAY wrote:
> > Could you give more details about what this is fixing, i.e a specific
> > scenario that is fixed by this patch ?
>
> In the case pkgconf, I can not see a real situation where this patch
> fixes an issue.
>
> There is an important difference between $@ and "$@". The shell expands
> "$@" as "$1" "$2" "$3"... while it expands $@ as $1 $2 $3.
>
> With the second form, we losts spaces in positional parameters.
>
> As example, the following call
>
> pkg-config --cflags "one two" three
>
> is wrapped as
>
> pkgconf --cflags one two three
>
> while we are expecting
>
> pkgconf --cflags "one two" three
>
> "$@" is really useful when writing wrappers. It passes the positional
> arguments *as* they are given.
OK, thanks for the explanation, makes sense. A better commit log would
definitely help :)
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2018-02-22 15:57 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2018-02-21 20:55 [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Gaël PORTAY
2018-02-21 20:55 ` [Buildroot] [PATCH 2/2] pkgconf: pkg-config.in: exec pkgconf Gaël PORTAY
2018-02-21 21:13 ` [Buildroot] [PATCH 1/2] pkgconf: pkg-config.in: double quote $@ Thomas Petazzoni
2018-02-21 23:48 ` Gaël PORTAY
2018-02-22 15:49 ` Thomas Petazzoni
2018-02-22 15:57 ` Gaël PORTAY
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