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Bug#1010785: gdome2: reproducible-builds: embedded build paths libgdome.so.*



Control: found 1010785 0.8.1+debian-8

On 2022-05-09, Vagrant Cascadian wrote:
> The build path is embedded in /usr/lib/libgdome.so.0.8.1:
>
>   https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/gdome2.html
>
>   /build/1st/gdome2-0.8.1+debian/libgdome/gdome.c:65
>   vs.
>   /build/2/gdome2-0.8.1+debian/2nd/libgdome/gdome.c:65
>
>
> The attached patch to debian/rules fixes this by passing
> -ffile-prefix-map in CFLAGS and ensuring CFLAGS is passed to configure.
>
> Alternately, updating the packaging to use dh/debhelper at a recent
> compat level would also likely fix this.

Turns out simply switching to dh/debhelper was not sufficient...

Probably adjusting debian/rules with something like:

override_dh_auto_configure:
    CFLAGS="$(CFLAGS) -ffile-prefix-map=$(CURDIR)" dh_auto_configure

I'll try and provide an updated patch and confirm the fix at some
point... though if someone else does it first I won't complain! :)


live well,
  vagrant

> From 65c23dfcbf5fd3a59d4a3141430247225e4d4413 Mon Sep 17 00:00:00 2001
> From: Vagrant Cascadian <vagrant@reproducible-builds.org>
> Date: Mon, 9 May 2022 23:06:56 +0000
> Subject: [PATCH] debian/rules: add -ffile-prefix-map to CFLAGS and ensure
>  CFLAGS are passed in the configure phase.
>
> ---
>  debian/rules | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/debian/rules b/debian/rules
> index 5e25754..ae361d7 100755
> --- a/debian/rules
> +++ b/debian/rules
> @@ -11,13 +11,15 @@ ifeq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS)))
>  INSTALL_PROGRAM += -s
>  endif
>  
> +CFLAGS += -ffile-prefix-map=$(CURDIR)=.
> +
>  configure: configure-stamp
>  configure-stamp:
>  	dh_testdir
>  	cp /usr/share/misc/config.sub /usr/share/misc/config.guess .
>  	libtoolize -c -f
>  	autoreconf -f -i
> -	./configure --prefix=/usr \
> +	CFLAGS="$(CFLAGS)" ./configure --prefix=/usr \
>  		    --mandir=\$${prefix}/share/man \
>  		    --infodir=\$${prefix}/share/info \
>  		    --with-html-dir=\$${prefix}/share/doc/libgdome2-dev 
> -- 
> 2.36.0

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