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Bug#1107486: marked as done (gcc-defaults: multiple problems with the gfortran modversion)

Your message dated Thu, 04 Sep 2025 00:05:00 +0000
with message-id <E1utxTI-005JCS-0o@fasolo.debian.org>
and subject line Bug#1107486: fixed in gcc-defaults 1.226
has caused the Debian Bug report #1107486,
regarding gcc-defaults: multiple problems with the gfortran modversion
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1107486: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107486
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-defaults
Version: 1.224
Severity: important
Tags: patch
Justification: breaks architecture cross bootstrap
User: debian-cross@lists.debian.org
Usertags: cross-satisfiability
User: helmutg@debian.org
Usertags: rebootstrap
X-Debbugs-Cc: zeha@debian.org

Hi Matthias,

you recently fixed use of the apt cache in gcc-defaults #1104504.
Unfortunately, the new version poses several problems.

A relatively straight forward one is this message during build:

| dpkg-query: error in show format: may not be empty string

It originates from:

| MOD_VER := $(shell dpkg-query -W --showformat='${Provides}' gfortran-$(PV_GFORT) \
|                 | sed 's/.*\(gfortran-mod-[0-9]*\).*/\1/')

In this invocation, ${Provides} is evaluated as a makefile variable. As
it happens to be unset, the empty string is substituted. dpkg doesn't
like that and as a result, gfortran does not provide any gfortran-mod-*.

This is easily fixed by escaping the $ as '$${Provides}'. Fair enough.

The next problem is the additional gfortran-VER dependency. It's implied
as a host architecture dependency and it transitively depends on
binutils:HOST. This is in stark conflict with binutils:BUILD as depended
upon by build-essential. As a result, this dependency is always
cross-unsatisfiable.

If we assume that the modversion does not vary across architectures
(which seems like a valid assumption given that it is scraped from
$(srcdir)/gcc/fortran/module.cc), we may change that to
gfortran-VER:native. Do you agree?

Helmut

diff --minimal -Nru gcc-defaults-1.225/debian/changelog gcc-defaults-1.225+nmu1/debian/changelog
--- gcc-defaults-1.225/debian/changelog	2025-05-03 22:55:23.000000000 +0200
+++ gcc-defaults-1.225+nmu1/debian/changelog	2025-06-07 13:15:53.000000000 +0200
@@ -1,3 +1,11 @@
+gcc-defaults (1.225+nmu1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mod-version computation.
+  * Depend on the native gfortran-N.
+
+ -- Helmut Grohne <helmut@subdivi.de>  Sat, 07 Jun 2025 13:15:53 +0200
+
 gcc-defaults (1.225) experimental; urgency=medium
 
   * Fix ga68 cross dependencies.
diff --minimal -Nru gcc-defaults-1.225/debian/control gcc-defaults-1.225+nmu1/debian/control
--- gcc-defaults-1.225/debian/control	2025-05-03 16:36:44.000000000 +0200
+++ gcc-defaults-1.225+nmu1/debian/control	2025-06-07 13:15:53.000000000 +0200
@@ -5,7 +5,7 @@
 Uploaders: Matthias Klose <doko@debian.org>
 Standards-Version: 4.7.2
 Build-Depends: m4, debhelper-compat (= 13),
-  gcc-15-base (>= 15.1.0-2~), gfortran-15,
+  gcc-15-base (>= 15.1.0-2~), gfortran-15:native,
   lsb-release
 Vcs-Browser: https://salsa.debian.org/toolchain-team/gcc-defaults
 Vcs-Git: https://salsa.debian.org/toolchain-team/gcc-defaults.git
diff --minimal -Nru gcc-defaults-1.225/debian/rules gcc-defaults-1.225+nmu1/debian/rules
--- gcc-defaults-1.225/debian/rules	2025-05-03 16:30:14.000000000 +0200
+++ gcc-defaults-1.225+nmu1/debian/rules	2025-06-07 13:15:53.000000000 +0200
@@ -592,7 +592,7 @@
   ))
 endif
 
-MOD_VER := $(shell dpkg-query -W --showformat='${Provides}' gfortran-$(PV_GFORT) \
+MOD_VER := $(shell dpkg-query -W --showformat='$${Provides}' gfortran-$(PV_GFORT) \
 		| sed 's/.*\(gfortran-mod-[0-9]*\).*/\1/')
 
 README:
@@ -745,7 +745,7 @@
 ifeq ($(with_native),yes)
 	sed \
 	  -e "s/@SOURCE@/$(SOURCE)/g" \
-	  -e "s/@GFORTRAN@/gfortran-$(PV_GFORT)/g" \
+	  -e "s/@GFORTRAN@/gfortran-$(PV_GFORT):native/g" \
 	  debian/control.source  > debian/control
 	sed \
 	  -e "s/@multilib_archs@/$(multilib_archs)/g" \
@@ -755,7 +755,7 @@
 else
 	  sed \
 	    -e "s/@SOURCE@/$(SOURCE)/g" \
-	    -e "s/@GFORTRAN@/gfortran-$(PV_GFORT)/g" \
+	    -e "s/@GFORTRAN@/gfortran-$(PV_GFORT):native/g" \
 	    debian/control.source \
 	    | grep -v '^Build-Depends-Indep:' \
 	    > debian/control

--- End Message ---
--- Begin Message --- 
Source: gcc-defaults
Source-Version: 1.226
Done: Matthias Klose <doko@debian.org>

We believe that the bug you reported is fixed in the latest version of
gcc-defaults, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1107486@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Matthias Klose <doko@debian.org> (supplier of updated gcc-defaults package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Thu, 04 Sep 2025 01:22:32 +0200
Source: gcc-defaults
Architecture: source
Version: 1.226
Distribution: unstable
Urgency: medium
Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org>
Changed-By: Matthias Klose <doko@debian.org>
Closes: 1099449 1107486
Changes:
 gcc-defaults (1.226) unstable; urgency=medium
 .
   * Fix some man page issues (Bjarni Ingi Gislason). Closes: #1099449.
   * Fix mod-version computation (Helmut Grohne). Closes: #1107486.
   * Depend on the native gfortran-N (Helmut Grohne).
   * Build libgphobos-dev on ppc64el.
   * Bump versions to 15.2 and 14.3.
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