fedpkg

[Patrick Dupre]

Hello,

Trying to build a rpm package for gsl.2.7
I downloaded gsl-2.7.tar.gz
I copy 
cp -a gsl.spec.in gsl.spec
and
run (in gsl-2.7)
fedpkg --release fc34 local
but I get
Traceback (most recent call last):
  File "/usr/bin/fedpkg", line 33, in <module>
    sys.exit(load_entry_point('fedpkg==1.40', 'console_scripts', 'fedpkg')())
  File "/usr/bin/fedpkg", line 25, in importlib_load_entry_point
    return next(matches).load()
  File "/usr/lib64/python3.9/importlib/metadata.py", line 77, in load
    module = import_module(match.group('module'))
  File "/usr/lib64/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 855, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/usr/lib/python3.9/site-packages/fedpkg/__init__.py", line 12, in <module>
    import pyrpkg
  File "/usr/lib/python3.9/site-packages/pyrpkg/__init__.py", line 47, in <module>
    from pyrpkg.lookaside import CGILookasideCache
  File "/usr/lib/python3.9/site-packages/pyrpkg/lookaside.py", line 23, in <module>
    import pycurl
ImportError: pycurl: libcurl link-time version (7.64.1) is older than compile-time version (7.75.0)

Can I easy fix this issue?

Thanks

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: [phone]                    | | Room# D114A
===========================================================================

[Samuel Sieb]

On 2021-06-19 7:34 a.m., Patrick Dupre wrote:
>  import pycurl
>
> ImportError: pycurl: libcurl link-time version (7.64.1) is older than compile-time version (7.75.0)

Do you have a self-installed version of pycurl or libcurl somewhere?

What does "rpm -q python3-pycurl libcurl" show?

[Patrick Dupre]

python3-pycurl-7.43.0.6-5.fc34.x86_64
libcurl-7.76.1-4.fc34.x86_64
libcurl-7.76.1-4.fc34.i686
> On 2021-06-19 7:34 a.m., Patrick Dupre wrote:
> >  import pycurl
> >
> > ImportError: pycurl: libcurl link-time version (7.64.1) is older than compile-time version (7.75.0)
>
> Do you have a self-installed version of pycurl or libcurl somewhere?
>
> What does "rpm -q python3-pycurl libcurl" show?
> _______________________________________________
> users mailing list -- [e-mail]
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fedpkg gsl-2.7

[Patrick Dupre]

Actually, now I have:
fedpkg --release fc34 local
sources file doesn't exist. Source files download skipped.
Could not execute local: Could not find the release/dist from branch name fc34
Please specify with --release

using gsl.spec.in (gsl-2.7.tar.gz)

Name: gsl
Summary: GNU Scientific Library (GSL)
Packager: [e-mail], [e-mail]
%define version @VERSION@
%define release 0
Version: %{version}
Release: %{release}
License: GPL
Vendor: The GSL Team
Distribution: research software
Source: gsl-%{version}.tar.gz
Group: Libraries/Research
%define mybuildroot /var/tmp/%{name}-build
BuildRoot: %{mybuildroot}

%description
  The GNU Scientific Library (GSL) is a numerical library for C and
C++ programmers.  It contains over 1000 mathematical routines written
in ANSI C.  The library follows modern coding conventions, and lends
itself to being used in very high level languages (VHLLs).

The library covers the following subject areas:

Complex Numbers             Roots of Polynomials     Special Functions
  Vectors and Matrices        Permutations             Sorting
  BLAS Support                Linear Algebra           Eigensystems
  Fast Fourier Transforms     Quadrature               Random Numbers
  Quasi-Random Sequences      Random Distributions     Statistics
  Histograms                  N-Tuples                 Monte Carlo Integration
  Simulated Annealing         Differential Equations   Interpolation
  Numerical Differentiation   Chebyshev Approximation  Series Acceleration
  Discrete Hankel Transforms  Root-Finding             Minimization
  Least-Squares Fitting       Physical Constants       IEEE Floating-Point

Further information can be found in the GSL Reference Manual.
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007 The GSL Team.

Install the gsl package if you need a library for high-level
scientific numerical analysis.

%prep
%setup -q -n gsl-%{version}

%build
CFLAGS="$RPM_OPT_FLAGS"
./configure --prefix=%{_prefix} \
    --bindir=%{_bindir} --mandir=%{_mandir} \
    --localstatedir=%{_localstatedir} --libdir=%{_libdir} \
    --datadir=%{_datadir} --includedir=%{_includedir} \
    --sysconfdir=%{_sysconfdir}
make

%install
rm -rf $RPM_BUILD_ROOT

make prefix=$RPM_BUILD_ROOT%{_prefix} bindir=$RPM_BUILD_ROOT%{_bindir} \
    mandir=$RPM_BUILD_ROOT%{_mandir} libdir=$RPM_BUILD_ROOT%{_libdir} \
    localstatedir=$RPM_BUILD_ROOT%{_localstatedir} \
    datadir=$RPM_BUILD_ROOT%{_datadir} \
    includedir=$RPM_BUILD_ROOT%{_includedir} \
    sysconfdir=$RPM_BUILD_ROOT%{_sysconfdir} install

%clean
rm -rf $RPM_BUILD_ROOT

%post -p /sbin/ldconfig

%postun -p /sbin/ldconfig

%files
%doc {NEWS,ChangeLog,INSTALL,README,AUTHORS,THANKS,SUPPORT,BUGS}
%doc /usr/info/*
/usr/bin/gsl-config
/usr/bin/gsl-histogram
/usr/bin/gsl-randist
/usr/lib
/usr/include/gsl
/usr/share/aclocal/gsl.m4
/usr/share/man
> Subject: Re: fedpkg
>
> On 2021-06-19 7:34 a.m., Patrick Dupre wrote:
> >  import pycurl
> >
> > ImportError: pycurl: libcurl link-time version (7.64.1) is older than compile-time version (7.75.0)
>
> Do you have a self-installed version of pycurl or libcurl somewhere?
>
> What does "rpm -q python3-pycurl libcurl" show?
> _______________________________________________
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
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[Barry]

I thought that fedpkg works with a clone of the git repo for a fedora package.
Is that what you are doing?

Barry
> On 19 Jun 2021, at 15:35, Patrick Dupre  wrote:
>
> Hello,
>
> Trying to build a rpm package for gsl.2.7
> I downloaded gsl-2.7.tar.gz
> I copy 
> cp -a gsl.spec.in gsl.spec
> and
> run (in gsl-2.7)
> fedpkg --release fc34 local
> but I get
> Traceback (most recent call last):
>  File "/usr/bin/fedpkg", line 33, in <module>
>    sys.exit(load_entry_point('fedpkg==1.40', 'console_scripts', 'fedpkg')())
>  File "/usr/bin/fedpkg", line 25, in importlib_load_entry_point
>    return next(matches).load()
>  File "/usr/lib64/python3.9/importlib/metadata.py", line 77, in load
>    module = import_module(match.group('module'))
>  File "/usr/lib64/python3.9/importlib/__init__.py", line 127, in import_module
>    return _bootstrap._gcd_import(name[level:], package, level)
>  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
>  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
>  File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
>  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
>  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
>  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
>  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
>  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
>  File "<frozen importlib._bootstrap_external>", line 855, in exec_module
>  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
>  File "/usr/lib/python3.9/site-packages/fedpkg/__init__.py", line 12, in <module>
>    import pyrpkg
>  File "/usr/lib/python3.9/site-packages/pyrpkg/__init__.py", line 47, in <module>
>    from pyrpkg.lookaside import CGILookasideCache
>  File "/usr/lib/python3.9/site-packages/pyrpkg/lookaside.py", line 23, in <module>
>    import pycurl
> ImportError: pycurl: libcurl link-time version (7.64.1) is older than compile-time version (7.75.0)
>
> Can I easy fix this issue?
>
> Thanks
>
> ===========================================================================
> Patrick DUPRÉ                                 | | email: [e-mail]
> Laboratoire interdisciplinaire Carnot de Bourgogne
> 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
> Tel: [phone]                    | | Room# D114A
> ===========================================================================
> _______________________________________________
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure

[Patrick Dupre]

I do not think so.
I downloaded

https://www.gnu.org/software/gsl/gsl-latest.tgz (gsl-2.7)
> I thought that fedpkg works with a clone of the git repo for a fedora package.
> Is that what you are doing?
>
> Barry
> > On 19 Jun 2021, at 15:35, Patrick Dupre  wrote:
> >
> > Hello,
> >
> > Trying to build a rpm package for gsl.2.7
> > I downloaded gsl-2.7.tar.gz
> > I copy 
> > cp -a gsl.spec.in gsl.spec
> > and
> > run (in gsl-2.7)
> > fedpkg --release fc34 local
> > but I get
> > Traceback (most recent call last):
> >  File "/usr/bin/fedpkg", line 33, in <module>
> >    sys.exit(load_entry_point('fedpkg==1.40', 'console_scripts', 'fedpkg')())
> >  File "/usr/bin/fedpkg", line 25, in importlib_load_entry_point
> >    return next(matches).load()
> >  File "/usr/lib64/python3.9/importlib/metadata.py", line 77, in load
> >    module = import_module(match.group('module'))
> >  File "/usr/lib64/python3.9/importlib/__init__.py", line 127, in import_module
> >    return _bootstrap._gcd_import(name[level:], package, level)
> >  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
> >  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
> >  File "<frozen importlib._bootstrap>", line 972, in _find_and_load_unlocked
> >  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
> >  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
> >  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
> >  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
> >  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
> >  File "<frozen importlib._bootstrap_external>", line 855, in exec_module
> >  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
> >  File "/usr/lib/python3.9/site-packages/fedpkg/__init__.py", line 12, in <module>
> >    import pyrpkg
> >  File "/usr/lib/python3.9/site-packages/pyrpkg/__init__.py", line 47, in <module>
> >    from pyrpkg.lookaside import CGILookasideCache
> >  File "/usr/lib/python3.9/site-packages/pyrpkg/lookaside.py", line 23, in <module>
> >    import pycurl
> > ImportError: pycurl: libcurl link-time version (7.64.1) is older than compile-time version (7.75.0)
> >
> > Can I easy fix this issue?
> >
> > Thanks
> >
> > ===========================================================================
> > Patrick DUPRÉ                                 | | email: [e-mail]
> > Laboratoire interdisciplinaire Carnot de Bourgogne
> > 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
> > Tel: [phone]                    | | Room# D114A
> > ===========================================================================
> > _______________________________________________
> > users mailing list -- [e-mail]
> > To unsubscribe send an email to [e-mail]
> > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> > List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> > Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
>
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure

[Samuel Sieb]

On 2021-06-19 2:00 p.m., Patrick Dupre wrote:
> I do not think so.
> I downloaded
>
> https://www.gnu.org/software/gsl/gsl-latest.tgz (gsl-2.7)
> > I thought that fedpkg works with a clone of the git repo for a fedora package.
> > Is that what you are doing?

That isn't going to work.  You need the extra files from the repo to use 
fedpkg.  A possibly easier method would be to get the current source 
file (dnf download --source gsl), install it as your user, edit things 
as necessary and use rpmbuild to create a new rpm.

[Patrick Dupre]

This what I have done.

extrated the gsl.spec from gsl-2.7.tgz
edited it to set the version (2.7)
run rpmbuild -bb gsl.spec
It started to work, but finally stop with
* Examples:
* - to ignore standard and empty RPATHs, execute 'rpmbuild' like
*   $ QA_RPATHS=$(( 0x0001|0x0010 )) rpmbuild my-package.src.rpm
* - to check existing files, set $RPM_BUILD_ROOT and execute check-rpaths like
*   $ RPM_BUILD_ROOT=<top-dir> /usr/lib/rpm/check-rpaths
*
*******************************************************************************
ERROR   0001: file '/usr/bin/gsl-histogram' contains a standard rpath '/usr/lib64' in [/usr/lib64]
ERROR   0001: file '/usr/bin/gsl-randist' contains a standard rpath '/usr/lib64' in [/usr/lib64]
error: Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)

RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)
> > https://www.gnu.org/software/gsl/gsl-latest.tgz (gsl-2.7)
> > > I thought that fedpkg works with a clone of the git repo for a fedora package.
> > > Is that what you are doing?
>
> That isn't going to work.  You need the extra files from the repo to use
> fedpkg.  A possibly easier method would be to get the current source
> file (dnf download --source gsl), install it as your user, edit things
> as necessary and use rpmbuild to create a new rpm.
> _______________________________________________
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure

[Patrick Dupre]

This information is probably missing:

/usr/lib/rpm/sepdebugcrcfix: Updated 4 CRC32s, 0 CRC32s did match.
12830 blocks
+ '[' '%{buildarch}' = noarch ']'
+ QA_CHECK_RPATHS=1
+ case "${QA_CHECK_RPATHS:-}" in
+ /usr/lib/rpm/check-rpaths
*******************************************************************************
*
* WARNING: 'check-rpaths' detected a broken RPATH and will cause 'rpmbuild'
*          to fail. To ignore these errors, you can set the '$QA_RPATHS'
*          environment variable which is a bitmask allowing the values
*          below. The current value of QA_RPATHS is 0x0000.
*
*    0x0001 ... standard RPATHs (e.g. /usr/lib); such RPATHs are a minor
*               issue but are introducing redundant searchpaths without
*               providing a benefit. They can also cause errors in multilib
*               environments.
*    0x0002 ... invalid RPATHs; these are RPATHs which are neither absolute
*               nor relative filenames and can therefore be a SECURITY risk
*    0x0004 ... insecure RPATHs; these are relative RPATHs which are a
*               SECURITY risk
*    0x0008 ... the special '$ORIGIN' RPATHs are appearing after other
*               RPATHs; this is just a minor issue but usually unwanted
*    0x0010 ... the RPATH is empty; there is no reason for such RPATHs
*               and they cause unneeded work while loading libraries
*    0x0020 ... an RPATH references '..' of an absolute path; this will break
*               the functionality when the path before '..' is a symlink
*
*
* Examples:
* - to ignore standard and empty RPATHs, execute 'rpmbuild' like
*   $ QA_RPATHS=$(( 0x0001|0x0010 )) rpmbuild my-package.src.rpm
* - to check existing files, set $RPM_BUILD_ROOT and execute check-rpaths like
*   $ RPM_BUILD_ROOT=<top-dir> /usr/lib/rpm/check-rpaths
*
*******************************************************************************
ERROR   0001: file '/usr/bin/gsl-histogram' contains a standard rpath '/usr/lib64' in [/usr/lib64]
ERROR   0001: file '/usr/bin/gsl-randist' contains a standard rpath '/usr/lib64' in [/usr/lib64]
error: Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)
> Sent: Saturday, June 19, 2021 at 11:35 PM
> From: "Patrick Dupre" 
> To: [e-mail]
> Cc: [e-mail]
> Subject: Re: fedpkg
>
> This what I have done.
>
> extrated the gsl.spec from gsl-2.7.tgz
> edited it to set the version (2.7)
> run rpmbuild -bb gsl.spec
> It started to work, but finally stop with
> Examples:
> to ignore standard and empty RPATHs, execute 'rpmbuild' like
> $ QA_RPATHS=$(( 0x0001|0x0010 )) rpmbuild my-package.src.rpm
> to check existing files, set $RPM_BUILD_ROOT and execute check-rpaths like
> $ RPM_BUILD_ROOT=<top-dir> /usr/lib/rpm/check-rpaths
>
> ERROR   0001: file '/usr/bin/gsl-histogram' contains a standard rpath '/usr/lib64' in [/usr/lib64]
> ERROR   0001: file '/usr/bin/gsl-randist' contains a standard rpath '/usr/lib64' in [/usr/lib64]
> error: Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)
>
> RPM build errors:
>     Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)
> > > https://www.gnu.org/software/gsl/gsl-latest.tgz (gsl-2.7)
> > > > I thought that fedpkg works with a clone of the git repo for a fedora package.
> > > > Is that what you are doing?
> >
> > That isn't going to work.  You need the extra files from the repo to use
> > fedpkg.  A possibly easier method would be to get the current source
> > file (dnf download --source gsl), install it as your user, edit things
> > as necessary and use rpmbuild to create a new rpm.
> > _______________________________________________
> > users mailing list -- [e-mail]
> > To unsubscribe send an email to [e-mail]
> > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> > List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> > Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
>
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]
> Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure

[Samuel Sieb]

On 2021-06-19 2:35 p.m., Patrick Dupre wrote:
> This what I have done.
>
> extrated the gsl.spec from gsl-2.7.tgz
> edited it to set the version (2.7)
> run rpmbuild -bb gsl.spec
> It started to work, but finally stop with
> Examples:
> to ignore standard and empty RPATHs, execute 'rpmbuild' like
> $ QA_RPATHS=$(( 0x0001|0x0010 )) rpmbuild my-package.src.rpm
> to check existing files, set $RPM_BUILD_ROOT and execute check-rpaths like
> $ RPM_BUILD_ROOT=<top-dir> /usr/lib/rpm/check-rpaths
>
> ERROR   0001: file '/usr/bin/gsl-histogram' contains a standard rpath '/usr/lib64' in [/usr/lib64]
> ERROR   0001: file '/usr/bin/gsl-randist' contains a standard rpath '/usr/lib64' in [/usr/lib64]
> error: Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)

You probably need the Fedora spec file, not the upstream one.

[Patrick Dupre]

Yes,

How to I extract the .tgz (or the .spec) file from a src.rpm ?
> On 2021-06-19 2:35 p.m., Patrick Dupre wrote:
> > This what I have done.
> >
> > extrated the gsl.spec from gsl-2.7.tgz
> > edited it to set the version (2.7)
> > run rpmbuild -bb gsl.spec
> > It started to work, but finally stop with
> > Examples:
> > to ignore standard and empty RPATHs, execute 'rpmbuild' like
> > $ QA_RPATHS=$(( 0x0001|0x0010 )) rpmbuild my-package.src.rpm
> > to check existing files, set $RPM_BUILD_ROOT and execute check-rpaths like
> > $ RPM_BUILD_ROOT=<top-dir> /usr/lib/rpm/check-rpaths
> >
> > ERROR   0001: file '/usr/bin/gsl-histogram' contains a standard rpath '/usr/lib64' in [/usr/lib64]
> > ERROR   0001: file '/usr/bin/gsl-randist' contains a standard rpath '/usr/lib64' in [/usr/lib64]
> > error: Bad exit status from /var/tmp/rpm-tmp.rVEtxu (%install)
>
> You probably need the Fedora spec file, not the upstream one.
> _______________________________________________
> users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
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[Jerry James]

On Sat, Jun 19, 2021 at 4:01 PM Patrick Dupre  wrote:
> Yes,
>
> How to I extract the .tgz (or the .spec) file from a src.rpm ?

If you run "rpm -i <name of spec file", it will unpack the src.rpm
into ~/rpmbuild, with the spec file in ~/rpmbuild/SPECS and the source
files in ~/rpmbuild/SOURCES.

Or you can look here to get the current spec file:

https://src.fedoraproject.org/rpms/gsl/tree/rawhide

[Jonathan Billings]

On Jun 19, 2021, at 18:00, Patrick Dupre  wrote:
> How to I extract the .tgz (or the .spec) file from a src.rpm ?

You already have fedpkg.  You can run

fedpkg co -a gsl

(Add a —branch f34 to get the Fedora 34 branch, or check it out manually with git)

And it will check out the branch in a directory called “gsl”. You can cd into that directory, change the spec, add the source tarball or whatever, and run “fedpkg mockbuild” to make it build the package using the current branch’s base.  I do this all the time.

—
Jonathan Billings