diff --git a/swig.changes b/swig.changes
index 3d2d395..4b14bbd 100644
--- a/swig.changes
+++ b/swig.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jan 25 11:22:31 UTC 2024 - ecsos <ecsos@opensuse.org>
+
+- Fix build error on Leap.
+
 -------------------------------------------------------------------
 Tue Jan 02 08:33:49 UTC 2024 - kkaempf@suse.com
 
diff --git a/swig.spec b/swig.spec
index 7a2a226..4ceab3b 100644
--- a/swig.spec
+++ b/swig.spec
@@ -43,7 +43,13 @@ BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  bison >= 3.5
 BuildRequires:  fdupes
-BuildRequires:  gcc-c++
+%if 0%{?suse_version} <= 1600
+BuildRequires: gcc12
+BuildRequires: gcc12-c++
+%else
+BuildRequires: gcc
+BuildRequires: gcc-c++
+%endif
 BuildRequires:  libtool
 BuildRequires:  pcre2-devel
 BuildRequires:  perl
@@ -121,6 +127,10 @@ understandig SWIG usage.
 %setup -q -n %{name}-%{version}
 
 %build
+%if 0%{?suse_version} <= 1600
+export CC=gcc-12
+export CXX=g++-12
+%endif
 %ifarch s390 s390x
 export CCSHARED="-fPIC"
 %endif