Add option to build with bundled gsl

In case some future releases stop providing the system GSL library.

1 files changed, 15 insertions, 2 deletions

diff --git a/bogofilter.spec b/bogofilter.spec
index 9bbc270..574abe0 100644
--- a/bogofilter.spec
+++ b/bogofilter.spec
@@ -1,5 +1,6 @@
 %global with_libdb_migration 1
 %global libdb_migration_build_dir libdb_migration_build
+%{!?with_system_gsl: %global with_system_gsl (%{undefined rhel} || 0%{?rhel} < 10)}
 
 Summary: Fast anti-spam filtering by Bayesian statistical analysis
 Name: bogofilter
@@ -9,13 +10,19 @@ License: GPL-2.0-only
 URL: http://bogofilter.sourceforge.net/
 Source0: http://downloads.sourceforge.net/bogofilter/bogofilter-%{version}.tar.xz
 BuildRequires: gcc
-BuildRequires: flex gsl-devel
+BuildRequires: flex
 BuildRequires: pkgconfig(sqlite3)
 BuildRequires: /usr/bin/iconv
 BuildRequires: /usr/bin/xmlto
 BuildRequires: perl-generators
 BuildRequires: make
 
+%if %{with_system_gsl}
+BuildRequires: gsl-devel
+%else
+Provides: bundled(gsl) = 1.4
+%endif
+
 %if %{with_libdb_migration}
 BuildRequires: libdb-devel-static
 %endif
@@ -61,7 +68,13 @@ iconv -f iso-8859-1 -t utf-8 \
 %endif
 
 %build
-%configure --disable-rpath --with-database=sqlite3
+%configure --disable-rpath \
+	--with-database=sqlite3 \
+%if !%{with_system_gsl}
+	--with-included-gsl=yes \
+%endif
+	%{nil}
+
 %{__make} %{?_smp_mflags}
 
 %if %{with_libdb_migration}