Handle missing ExtUtils::CBuilder as a missing compiler

Module-Build-0.4231-Do-not-die-on-missing-ExtUtils-CBuilder-in-have_c_co.patch

@@ -0,0 +1,39 @@
+From 043add527dd6bc05d5ef5750839ab21c2fdab9e6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Mon, 28 Mar 2022 11:18:38 +0200
+Subject: [PATCH] Do not die on missing ExtUtils::CBuilder in have_c_compiler()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+In Fedora, ExtUtils::CBuilder is optional to allow installing perl
+without gcc (bug #1547165). Module::Build::have_c_compiler() uses
+ExtUtils::CBuilder to detect a presence of a C compiler. If
+ExtUtils::CBuilder was not installed, have_c_compiler() died instead
+of returning a false value.
+
+This error manifested in perl-Alien-Base-ModuleBuild tests. This patch
+changes have_c_compiler() to return true if ExtUtils::CBuilder is not
+available.
+
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+---
+ lib/Module/Build/Base.pm | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/Module/Build/Base.pm b/lib/Module/Build/Base.pm
+index 1352fcf..4e0f843 100644
+--- a/lib/Module/Build/Base.pm
++++ b/lib/Module/Build/Base.pm
+@@ -5315,7 +5315,7 @@ sub have_c_compiler {
+   return $p->{_have_c_compiler} if defined $p->{_have_c_compiler};
+ 
+   $self->log_verbose("Checking if compiler tools configured... ");
+-  my $b = $self->cbuilder;
++  my $b = eval { $self->cbuilder };
+   my $have = $b && eval { $b->have_compiler };
+   $self->log_verbose($have ? "ok.\n" : "failed.\n");
+   return $p->{_have_c_compiler} = $have;
+-- 
+2.34.1
+

perl-Module-Build.spec

@@ -12,7 +12,7 @@
 Name:           perl-Module-Build
 Epoch:          2
 Version:        %{cpan_version_major}%{?cpan_version_minor:.%cpan_version_minor}
-Release:        11%{?dist}
+Release:        12%{?dist}
 Summary:        Build and install Perl modules
 License:        GPL+ or Artistic
 URL:            https://metacpan.org/release/Module-Build
@@ -21,6 +21,8 @@ Source0:        https://cpan.metacpan.org/authors/id/L/LE/LEONT/Module-Build-%{c
 # CPAN RT#124625,
 # <https://lists.fedoraproject.org/archives/list/perl-devel@lists.fedoraproject.org/message/UWQ6SDRKNTX6SM6RBJ35CDBGRCV3ZSKP/>
 Patch0:         Module-Build-0.4224-Do-not-need-a-compiler-if-c_source-is-an-empty-list.patch
+# Handle missing ExtUtils::CBuilder as a missing compiler, bug #1547165.
+Patch1:         Module-Build-0.4231-Do-not-die-on-missing-ExtUtils-CBuilder-in-have_c_co.patch
 BuildArch:      noarch
 BuildRequires:  coreutils
 BuildRequires:  perl-interpreter
@@ -136,8 +138,7 @@ only prerequisites are modules that are included with perl 5.6.0, and it
 works fine on perl 5.005 if you can install a few additional modules.
 
 %prep
-%setup -q -n Module-Build-%{cpan_version}
+%autosetup -p1 -n Module-Build-%{cpan_version}
-%patch0 -p1
 
 %build
 perl Build.PL installdirs=vendor
@@ -160,6 +161,9 @@ LANG=C TEST_SIGNATURE=1 MB_TEST_EXPERIMENTAL=1 ./Build test
 %{_mandir}/man3/*
 
 %changelog
+* Mon Mar 28 2022 Petr Pisar <ppisar@redhat.com> - 2:0.42.31-12
+- Handle missing ExtUtils::CBuilder as a missing compiler (bug #1547165)
+
 * Fri Jan 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 2:0.42.31-11
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild